hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [41/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Tue, 27 Jun 2017 15:01:55 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e3b63ca/devapidocs/src-html/org/apache/hadoop/hbase/AsyncMetaTableAccessor.MetaTableRawScanResultConsumer.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/AsyncMetaTableAccessor.MetaTableRawScanResultConsumer.html b/devapidocs/src-html/org/apache/hadoop/hbase/AsyncMetaTableAccessor.MetaTableRawScanResultConsumer.html
index a0256ee..5be1ff9 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/AsyncMetaTableAccessor.MetaTableRawScanResultConsumer.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/AsyncMetaTableAccessor.MetaTableRawScanResultConsumer.html
@@ -47,590 +47,589 @@
 <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.MetaTableAccessor.QueryType;<a name="line.39"></a>
 <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.MetaTableAccessor.Visitor;<a name="line.40"></a>
 <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.Get;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.RawAsyncTable;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RawScanResultConsumer;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.Result;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.client.Scan.ReadType;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.55"></a>
-<span class="sourceLineNo">056</span><a name="line.56"></a>
-<span class="sourceLineNo">057</span>/**<a name="line.57"></a>
-<span class="sourceLineNo">058</span> * The asynchronous meta table accessor. Used to read/write region and assignment information store<a name="line.58"></a>
-<span class="sourceLineNo">059</span> * in &lt;code&gt;hbase:meta&lt;/code&gt;.<a name="line.59"></a>
-<span class="sourceLineNo">060</span> */<a name="line.60"></a>
-<span class="sourceLineNo">061</span>@InterfaceAudience.Private<a name="line.61"></a>
-<span class="sourceLineNo">062</span>public class AsyncMetaTableAccessor {<a name="line.62"></a>
-<span class="sourceLineNo">063</span><a name="line.63"></a>
-<span class="sourceLineNo">064</span>  private static final Log LOG = LogFactory.getLog(AsyncMetaTableAccessor.class);<a name="line.64"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.Get;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.RawAsyncTable;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.RawScanResultConsumer;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.Result;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.client.Scan.ReadType;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span>/**<a name="line.56"></a>
+<span class="sourceLineNo">057</span> * The asynchronous meta table accessor. Used to read/write region and assignment information store<a name="line.57"></a>
+<span class="sourceLineNo">058</span> * in &lt;code&gt;hbase:meta&lt;/code&gt;.<a name="line.58"></a>
+<span class="sourceLineNo">059</span> */<a name="line.59"></a>
+<span class="sourceLineNo">060</span>@InterfaceAudience.Private<a name="line.60"></a>
+<span class="sourceLineNo">061</span>public class AsyncMetaTableAccessor {<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>  private static final Log LOG = LogFactory.getLog(AsyncMetaTableAccessor.class);<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
 <span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span><a name="line.66"></a>
-<span class="sourceLineNo">067</span>  /** The delimiter for meta columns for replicaIds &amp;gt; 0 */<a name="line.67"></a>
-<span class="sourceLineNo">068</span>  private static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.68"></a>
-<span class="sourceLineNo">069</span><a name="line.69"></a>
-<span class="sourceLineNo">070</span>  /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.70"></a>
-<span class="sourceLineNo">071</span>  private static final Pattern SERVER_COLUMN_PATTERN = Pattern<a name="line.71"></a>
-<span class="sourceLineNo">072</span>      .compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.72"></a>
-<span class="sourceLineNo">073</span><a name="line.73"></a>
-<span class="sourceLineNo">074</span>  public static CompletableFuture&lt;Boolean&gt; tableExists(RawAsyncTable metaTable, TableName tableName) {<a name="line.74"></a>
-<span class="sourceLineNo">075</span>    if (tableName.equals(META_TABLE_NAME)) {<a name="line.75"></a>
-<span class="sourceLineNo">076</span>      return CompletableFuture.completedFuture(true);<a name="line.76"></a>
-<span class="sourceLineNo">077</span>    }<a name="line.77"></a>
-<span class="sourceLineNo">078</span>    return getTableState(metaTable, tableName).thenApply(Optional::isPresent);<a name="line.78"></a>
-<span class="sourceLineNo">079</span>  }<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span>  public static CompletableFuture&lt;Optional&lt;TableState&gt;&gt; getTableState(RawAsyncTable metaTable,<a name="line.81"></a>
-<span class="sourceLineNo">082</span>      TableName tableName) {<a name="line.82"></a>
-<span class="sourceLineNo">083</span>    CompletableFuture&lt;Optional&lt;TableState&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.83"></a>
-<span class="sourceLineNo">084</span>    Get get = new Get(tableName.getName()).addColumn(getTableFamily(), getStateColumn());<a name="line.84"></a>
-<span class="sourceLineNo">085</span>    long time = EnvironmentEdgeManager.currentTime();<a name="line.85"></a>
-<span class="sourceLineNo">086</span>    try {<a name="line.86"></a>
-<span class="sourceLineNo">087</span>      get.setTimeRange(0, time);<a name="line.87"></a>
-<span class="sourceLineNo">088</span>      metaTable.get(get).whenComplete((result, error) -&gt; {<a name="line.88"></a>
-<span class="sourceLineNo">089</span>        if (error != null) {<a name="line.89"></a>
-<span class="sourceLineNo">090</span>          future.completeExceptionally(error);<a name="line.90"></a>
-<span class="sourceLineNo">091</span>          return;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>        }<a name="line.92"></a>
-<span class="sourceLineNo">093</span>        try {<a name="line.93"></a>
-<span class="sourceLineNo">094</span>          future.complete(getTableState(result));<a name="line.94"></a>
-<span class="sourceLineNo">095</span>        } catch (IOException e) {<a name="line.95"></a>
-<span class="sourceLineNo">096</span>          future.completeExceptionally(e);<a name="line.96"></a>
-<span class="sourceLineNo">097</span>        }<a name="line.97"></a>
-<span class="sourceLineNo">098</span>      });<a name="line.98"></a>
-<span class="sourceLineNo">099</span>    } catch (IOException ioe) {<a name="line.99"></a>
-<span class="sourceLineNo">100</span>      future.completeExceptionally(ioe);<a name="line.100"></a>
-<span class="sourceLineNo">101</span>    }<a name="line.101"></a>
-<span class="sourceLineNo">102</span>    return future;<a name="line.102"></a>
-<span class="sourceLineNo">103</span>  }<a name="line.103"></a>
-<span class="sourceLineNo">104</span><a name="line.104"></a>
-<span class="sourceLineNo">105</span>  /**<a name="line.105"></a>
-<span class="sourceLineNo">106</span>   * Returns the HRegionLocation from meta for the given region<a name="line.106"></a>
-<span class="sourceLineNo">107</span>   * @param metaTable<a name="line.107"></a>
-<span class="sourceLineNo">108</span>   * @param regionName region we're looking for<a name="line.108"></a>
-<span class="sourceLineNo">109</span>   * @return HRegionLocation for the given region<a name="line.109"></a>
-<span class="sourceLineNo">110</span>   */<a name="line.110"></a>
-<span class="sourceLineNo">111</span>  public static CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; getRegionLocation(<a name="line.111"></a>
-<span class="sourceLineNo">112</span>      RawAsyncTable metaTable, byte[] regionName) {<a name="line.112"></a>
-<span class="sourceLineNo">113</span>    CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.113"></a>
-<span class="sourceLineNo">114</span>    try {<a name="line.114"></a>
-<span class="sourceLineNo">115</span>      HRegionInfo parsedRegionInfo = MetaTableAccessor.parseRegionInfoFromRegionName(regionName);<a name="line.115"></a>
-<span class="sourceLineNo">116</span>      metaTable.get(<a name="line.116"></a>
-<span class="sourceLineNo">117</span>        new Get(MetaTableAccessor.getMetaKeyForRegion(parsedRegionInfo))<a name="line.117"></a>
-<span class="sourceLineNo">118</span>            .addFamily(HConstants.CATALOG_FAMILY)).whenComplete(<a name="line.118"></a>
-<span class="sourceLineNo">119</span>        (r, err) -&gt; {<a name="line.119"></a>
-<span class="sourceLineNo">120</span>          if (err != null) {<a name="line.120"></a>
-<span class="sourceLineNo">121</span>            future.completeExceptionally(err);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>            return;<a name="line.122"></a>
-<span class="sourceLineNo">123</span>          }<a name="line.123"></a>
-<span class="sourceLineNo">124</span>          future.complete(getRegionLocations(r).map(<a name="line.124"></a>
-<span class="sourceLineNo">125</span>            locations -&gt; locations.getRegionLocation(parsedRegionInfo.getReplicaId())));<a name="line.125"></a>
-<span class="sourceLineNo">126</span>        });<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    } catch (IOException parseEx) {<a name="line.127"></a>
-<span class="sourceLineNo">128</span>      LOG.warn("Failed to parse the passed region name: " + Bytes.toStringBinary(regionName));<a name="line.128"></a>
-<span class="sourceLineNo">129</span>      future.completeExceptionally(parseEx);<a name="line.129"></a>
-<span class="sourceLineNo">130</span>    }<a name="line.130"></a>
-<span class="sourceLineNo">131</span>    return future;<a name="line.131"></a>
-<span class="sourceLineNo">132</span>  }<a name="line.132"></a>
-<span class="sourceLineNo">133</span><a name="line.133"></a>
-<span class="sourceLineNo">134</span>  /**<a name="line.134"></a>
-<span class="sourceLineNo">135</span>   * Returns the HRegionLocation from meta for the given encoded region name<a name="line.135"></a>
-<span class="sourceLineNo">136</span>   * @param metaTable<a name="line.136"></a>
-<span class="sourceLineNo">137</span>   * @param encodedRegionName region we're looking for<a name="line.137"></a>
-<span class="sourceLineNo">138</span>   * @return HRegionLocation for the given region<a name="line.138"></a>
-<span class="sourceLineNo">139</span>   */<a name="line.139"></a>
-<span class="sourceLineNo">140</span>  public static CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; getRegionLocationWithEncodedName(<a name="line.140"></a>
-<span class="sourceLineNo">141</span>      RawAsyncTable metaTable, byte[] encodedRegionName) {<a name="line.141"></a>
-<span class="sourceLineNo">142</span>    CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.142"></a>
-<span class="sourceLineNo">143</span>    metaTable.scanAll(new Scan().setReadType(ReadType.PREAD).addFamily(HConstants.CATALOG_FAMILY))<a name="line.143"></a>
-<span class="sourceLineNo">144</span>        .whenComplete(<a name="line.144"></a>
-<span class="sourceLineNo">145</span>          (results, err) -&gt; {<a name="line.145"></a>
-<span class="sourceLineNo">146</span>            if (err != null) {<a name="line.146"></a>
-<span class="sourceLineNo">147</span>              future.completeExceptionally(err);<a name="line.147"></a>
-<span class="sourceLineNo">148</span>              return;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>            }<a name="line.149"></a>
-<span class="sourceLineNo">150</span>            String encodedRegionNameStr = Bytes.toString(encodedRegionName);<a name="line.150"></a>
-<span class="sourceLineNo">151</span>            results<a name="line.151"></a>
-<span class="sourceLineNo">152</span>                .stream()<a name="line.152"></a>
-<span class="sourceLineNo">153</span>                .filter(result -&gt; !result.isEmpty())<a name="line.153"></a>
-<span class="sourceLineNo">154</span>                .filter(result -&gt; MetaTableAccessor.getHRegionInfo(result) != null)<a name="line.154"></a>
-<span class="sourceLineNo">155</span>                .forEach(<a name="line.155"></a>
-<span class="sourceLineNo">156</span>                  result -&gt; {<a name="line.156"></a>
-<span class="sourceLineNo">157</span>                    getRegionLocations(result).ifPresent(<a name="line.157"></a>
-<span class="sourceLineNo">158</span>                      locations -&gt; {<a name="line.158"></a>
-<span class="sourceLineNo">159</span>                        for (HRegionLocation location : locations.getRegionLocations()) {<a name="line.159"></a>
-<span class="sourceLineNo">160</span>                          if (location != null<a name="line.160"></a>
-<span class="sourceLineNo">161</span>                              &amp;&amp; encodedRegionNameStr.equals(location.getRegionInfo()<a name="line.161"></a>
-<span class="sourceLineNo">162</span>                                  .getEncodedName())) {<a name="line.162"></a>
-<span class="sourceLineNo">163</span>                            future.complete(Optional.of(location));<a name="line.163"></a>
-<span class="sourceLineNo">164</span>                            return;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>                          }<a name="line.165"></a>
-<span class="sourceLineNo">166</span>                        }<a name="line.166"></a>
-<span class="sourceLineNo">167</span>                      });<a name="line.167"></a>
-<span class="sourceLineNo">168</span>                  });<a name="line.168"></a>
-<span class="sourceLineNo">169</span>            future.complete(Optional.empty());<a name="line.169"></a>
-<span class="sourceLineNo">170</span>          });<a name="line.170"></a>
-<span class="sourceLineNo">171</span>    return future;<a name="line.171"></a>
-<span class="sourceLineNo">172</span>  }<a name="line.172"></a>
-<span class="sourceLineNo">173</span><a name="line.173"></a>
-<span class="sourceLineNo">174</span>  private static Optional&lt;TableState&gt; getTableState(Result r) throws IOException {<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    Cell cell = r.getColumnLatestCell(getTableFamily(), getStateColumn());<a name="line.175"></a>
-<span class="sourceLineNo">176</span>    if (cell == null) return Optional.empty();<a name="line.176"></a>
-<span class="sourceLineNo">177</span>    try {<a name="line.177"></a>
-<span class="sourceLineNo">178</span>      return Optional.of(TableState.parseFrom(<a name="line.178"></a>
-<span class="sourceLineNo">179</span>        TableName.valueOf(r.getRow()),<a name="line.179"></a>
-<span class="sourceLineNo">180</span>        Arrays.copyOfRange(cell.getValueArray(), cell.getValueOffset(), cell.getValueOffset()<a name="line.180"></a>
-<span class="sourceLineNo">181</span>            + cell.getValueLength())));<a name="line.181"></a>
-<span class="sourceLineNo">182</span>    } catch (DeserializationException e) {<a name="line.182"></a>
-<span class="sourceLineNo">183</span>      throw new IOException("Failed to parse table state from result: " + r, e);<a name="line.183"></a>
-<span class="sourceLineNo">184</span>    }<a name="line.184"></a>
-<span class="sourceLineNo">185</span>  }<a name="line.185"></a>
-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span>  /**<a name="line.187"></a>
-<span class="sourceLineNo">188</span>   * Used to get all region locations for the specific table.<a name="line.188"></a>
-<span class="sourceLineNo">189</span>   * @param metaTable<a name="line.189"></a>
-<span class="sourceLineNo">190</span>   * @param tableName table we're looking for, can be null for getting all regions<a name="line.190"></a>
-<span class="sourceLineNo">191</span>   * @return the list of region locations. The return value will be wrapped by a<a name="line.191"></a>
-<span class="sourceLineNo">192</span>   *         {@link CompletableFuture}.<a name="line.192"></a>
-<span class="sourceLineNo">193</span>   */<a name="line.193"></a>
-<span class="sourceLineNo">194</span>  public static CompletableFuture&lt;List&lt;HRegionLocation&gt;&gt; getTableHRegionLocations(<a name="line.194"></a>
-<span class="sourceLineNo">195</span>      RawAsyncTable metaTable, final Optional&lt;TableName&gt; tableName) {<a name="line.195"></a>
-<span class="sourceLineNo">196</span>    CompletableFuture&lt;List&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.196"></a>
-<span class="sourceLineNo">197</span>    getTableRegionsAndLocations(metaTable, tableName, true).whenComplete(<a name="line.197"></a>
-<span class="sourceLineNo">198</span>      (locations, err) -&gt; {<a name="line.198"></a>
-<span class="sourceLineNo">199</span>        if (err != null) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span>          future.completeExceptionally(err);<a name="line.200"></a>
-<span class="sourceLineNo">201</span>        } else if (locations == null || locations.isEmpty()) {<a name="line.201"></a>
-<span class="sourceLineNo">202</span>          future.complete(Collections.emptyList());<a name="line.202"></a>
-<span class="sourceLineNo">203</span>        } else {<a name="line.203"></a>
-<span class="sourceLineNo">204</span>          List&lt;HRegionLocation&gt; regionLocations = locations.stream()<a name="line.204"></a>
-<span class="sourceLineNo">205</span>              .map(loc -&gt; new HRegionLocation(loc.getFirst(), loc.getSecond()))<a name="line.205"></a>
-<span class="sourceLineNo">206</span>              .collect(Collectors.toList());<a name="line.206"></a>
-<span class="sourceLineNo">207</span>          future.complete(regionLocations);<a name="line.207"></a>
-<span class="sourceLineNo">208</span>        }<a name="line.208"></a>
-<span class="sourceLineNo">209</span>      });<a name="line.209"></a>
-<span class="sourceLineNo">210</span>    return future;<a name="line.210"></a>
-<span class="sourceLineNo">211</span>  }<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span>  /**<a name="line.213"></a>
-<span class="sourceLineNo">214</span>   * Used to get table regions' info and server.<a name="line.214"></a>
-<span class="sourceLineNo">215</span>   * @param metaTable<a name="line.215"></a>
-<span class="sourceLineNo">216</span>   * @param tableName table we're looking for, can be null for getting all regions<a name="line.216"></a>
-<span class="sourceLineNo">217</span>   * @param excludeOfflinedSplitParents don't return split parents<a name="line.217"></a>
-<span class="sourceLineNo">218</span>   * @return the list of regioninfos and server. The return value will be wrapped by a<a name="line.218"></a>
-<span class="sourceLineNo">219</span>   *         {@link CompletableFuture}.<a name="line.219"></a>
-<span class="sourceLineNo">220</span>   */<a name="line.220"></a>
-<span class="sourceLineNo">221</span>  private static CompletableFuture&lt;List&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;&gt; getTableRegionsAndLocations(<a name="line.221"></a>
-<span class="sourceLineNo">222</span>      RawAsyncTable metaTable, final Optional&lt;TableName&gt; tableName,<a name="line.222"></a>
-<span class="sourceLineNo">223</span>      final boolean excludeOfflinedSplitParents) {<a name="line.223"></a>
-<span class="sourceLineNo">224</span>    CompletableFuture&lt;List&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.224"></a>
-<span class="sourceLineNo">225</span>    if (tableName.filter((t) -&gt; t.equals(TableName.META_TABLE_NAME)).isPresent()) {<a name="line.225"></a>
-<span class="sourceLineNo">226</span>      future.completeExceptionally(new IOException(<a name="line.226"></a>
-<span class="sourceLineNo">227</span>          "This method can't be used to locate meta regions;" + " use MetaTableLocator instead"));<a name="line.227"></a>
-<span class="sourceLineNo">228</span>    }<a name="line.228"></a>
-<span class="sourceLineNo">229</span><a name="line.229"></a>
-<span class="sourceLineNo">230</span>    // Make a version of CollectingVisitor that collects HRegionInfo and ServerAddress<a name="line.230"></a>
-<span class="sourceLineNo">231</span>    CollectingVisitor&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt; visitor = new CollectingVisitor&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;() {<a name="line.231"></a>
-<span class="sourceLineNo">232</span>      private Optional&lt;RegionLocations&gt; current = null;<a name="line.232"></a>
-<span class="sourceLineNo">233</span><a name="line.233"></a>
-<span class="sourceLineNo">234</span>      @Override<a name="line.234"></a>
-<span class="sourceLineNo">235</span>      public boolean visit(Result r) throws IOException {<a name="line.235"></a>
-<span class="sourceLineNo">236</span>        current = getRegionLocations(r);<a name="line.236"></a>
-<span class="sourceLineNo">237</span>        if (!current.isPresent() || current.get().getRegionLocation().getRegionInfo() == null) {<a name="line.237"></a>
-<span class="sourceLineNo">238</span>          LOG.warn("No serialized HRegionInfo in " + r);<a name="line.238"></a>
-<span class="sourceLineNo">239</span>          return true;<a name="line.239"></a>
-<span class="sourceLineNo">240</span>        }<a name="line.240"></a>
-<span class="sourceLineNo">241</span>        HRegionInfo hri = current.get().getRegionLocation().getRegionInfo();<a name="line.241"></a>
-<span class="sourceLineNo">242</span>        if (excludeOfflinedSplitParents &amp;&amp; hri.isSplitParent()) return true;<a name="line.242"></a>
-<span class="sourceLineNo">243</span>        // Else call super and add this Result to the collection.<a name="line.243"></a>
-<span class="sourceLineNo">244</span>        return super.visit(r);<a name="line.244"></a>
-<span class="sourceLineNo">245</span>      }<a name="line.245"></a>
-<span class="sourceLineNo">246</span><a name="line.246"></a>
-<span class="sourceLineNo">247</span>      @Override<a name="line.247"></a>
-<span class="sourceLineNo">248</span>      void add(Result r) {<a name="line.248"></a>
-<span class="sourceLineNo">249</span>        if (!current.isPresent()) {<a name="line.249"></a>
-<span class="sourceLineNo">250</span>          return;<a name="line.250"></a>
-<span class="sourceLineNo">251</span>        }<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        for (HRegionLocation loc : current.get().getRegionLocations()) {<a name="line.252"></a>
-<span class="sourceLineNo">253</span>          if (loc != null) {<a name="line.253"></a>
-<span class="sourceLineNo">254</span>            this.results.add(new Pair&lt;HRegionInfo, ServerName&gt;(loc.getRegionInfo(), loc<a name="line.254"></a>
-<span class="sourceLineNo">255</span>                .getServerName()));<a name="line.255"></a>
-<span class="sourceLineNo">256</span>          }<a name="line.256"></a>
-<span class="sourceLineNo">257</span>        }<a name="line.257"></a>
-<span class="sourceLineNo">258</span>      }<a name="line.258"></a>
-<span class="sourceLineNo">259</span>    };<a name="line.259"></a>
-<span class="sourceLineNo">260</span><a name="line.260"></a>
-<span class="sourceLineNo">261</span>    scanMeta(metaTable, tableName, QueryType.REGION, visitor).whenComplete((v, error) -&gt; {<a name="line.261"></a>
-<span class="sourceLineNo">262</span>      if (error != null) {<a name="line.262"></a>
-<span class="sourceLineNo">263</span>        future.completeExceptionally(error);<a name="line.263"></a>
-<span class="sourceLineNo">264</span>        return;<a name="line.264"></a>
-<span class="sourceLineNo">265</span>      }<a name="line.265"></a>
-<span class="sourceLineNo">266</span>      future.complete(visitor.getResults());<a name="line.266"></a>
-<span class="sourceLineNo">267</span>    });<a name="line.267"></a>
-<span class="sourceLineNo">268</span>    return future;<a name="line.268"></a>
-<span class="sourceLineNo">269</span>  }<a name="line.269"></a>
-<span class="sourceLineNo">270</span><a name="line.270"></a>
-<span class="sourceLineNo">271</span>  /**<a name="line.271"></a>
-<span class="sourceLineNo">272</span>   * Performs a scan of META table for given table.<a name="line.272"></a>
-<span class="sourceLineNo">273</span>   * @param metaTable<a name="line.273"></a>
-<span class="sourceLineNo">274</span>   * @param tableName table withing we scan<a name="line.274"></a>
-<span class="sourceLineNo">275</span>   * @param type scanned part of meta<a name="line.275"></a>
-<span class="sourceLineNo">276</span>   * @param visitor Visitor invoked against each row<a name="line.276"></a>
-<span class="sourceLineNo">277</span>   */<a name="line.277"></a>
-<span class="sourceLineNo">278</span>  private static CompletableFuture&lt;Void&gt; scanMeta(RawAsyncTable metaTable,<a name="line.278"></a>
-<span class="sourceLineNo">279</span>      Optional&lt;TableName&gt; tableName, QueryType type, final Visitor visitor) {<a name="line.279"></a>
-<span class="sourceLineNo">280</span>    return scanMeta(metaTable, getTableStartRowForMeta(tableName, type),<a name="line.280"></a>
-<span class="sourceLineNo">281</span>      getTableStopRowForMeta(tableName, type), type, Integer.MAX_VALUE, visitor);<a name="line.281"></a>
-<span class="sourceLineNo">282</span>  }<a name="line.282"></a>
-<span class="sourceLineNo">283</span><a name="line.283"></a>
-<span class="sourceLineNo">284</span>  /**<a name="line.284"></a>
-<span class="sourceLineNo">285</span>   * Performs a scan of META table for given table.<a name="line.285"></a>
-<span class="sourceLineNo">286</span>   * @param metaTable<a name="line.286"></a>
-<span class="sourceLineNo">287</span>   * @param startRow Where to start the scan<a name="line.287"></a>
-<span class="sourceLineNo">288</span>   * @param stopRow Where to stop the scan<a name="line.288"></a>
-<span class="sourceLineNo">289</span>   * @param type scanned part of meta<a name="line.289"></a>
-<span class="sourceLineNo">290</span>   * @param maxRows maximum rows to return<a name="line.290"></a>
-<span class="sourceLineNo">291</span>   * @param visitor Visitor invoked against each row<a name="line.291"></a>
-<span class="sourceLineNo">292</span>   */<a name="line.292"></a>
-<span class="sourceLineNo">293</span>  private static CompletableFuture&lt;Void&gt; scanMeta(RawAsyncTable metaTable, Optional&lt;byte[]&gt; startRow,<a name="line.293"></a>
-<span class="sourceLineNo">294</span>      Optional&lt;byte[]&gt; stopRow, QueryType type, int maxRows, final Visitor visitor) {<a name="line.294"></a>
-<span class="sourceLineNo">295</span>    int rowUpperLimit = maxRows &gt; 0 ? maxRows : Integer.MAX_VALUE;<a name="line.295"></a>
-<span class="sourceLineNo">296</span>    Scan scan = getMetaScan(metaTable, rowUpperLimit);<a name="line.296"></a>
-<span class="sourceLineNo">297</span>    for (byte[] family : type.getFamilies()) {<a name="line.297"></a>
-<span class="sourceLineNo">298</span>      scan.addFamily(family);<a name="line.298"></a>
-<span class="sourceLineNo">299</span>    }<a name="line.299"></a>
-<span class="sourceLineNo">300</span>    startRow.ifPresent(scan::withStartRow);<a name="line.300"></a>
-<span class="sourceLineNo">301</span>    stopRow.ifPresent(scan::withStopRow);<a name="line.301"></a>
-<span class="sourceLineNo">302</span><a name="line.302"></a>
-<span class="sourceLineNo">303</span>    if (LOG.isTraceEnabled()) {<a name="line.303"></a>
-<span class="sourceLineNo">304</span>      LOG.trace("Scanning META" + " starting at row=" + Bytes.toStringBinary(scan.getStartRow())<a name="line.304"></a>
-<span class="sourceLineNo">305</span>          + " stopping at row=" + Bytes.toStringBinary(scan.getStopRow()) + " for max="<a name="line.305"></a>
-<span class="sourceLineNo">306</span>          + rowUpperLimit + " with caching=" + scan.getCaching());<a name="line.306"></a>
-<span class="sourceLineNo">307</span>    }<a name="line.307"></a>
-<span class="sourceLineNo">308</span><a name="line.308"></a>
-<span class="sourceLineNo">309</span>    CompletableFuture&lt;Void&gt; future = new CompletableFuture&lt;Void&gt;();<a name="line.309"></a>
-<span class="sourceLineNo">310</span>    metaTable.scan(scan, new MetaTableRawScanResultConsumer(rowUpperLimit, visitor, future));<a name="line.310"></a>
-<span class="sourceLineNo">311</span>    return future;<a name="line.311"></a>
-<span class="sourceLineNo">312</span>  }<a name="line.312"></a>
-<span class="sourceLineNo">313</span><a name="line.313"></a>
-<span class="sourceLineNo">314</span>  private static final class MetaTableRawScanResultConsumer implements RawScanResultConsumer {<a name="line.314"></a>
-<span class="sourceLineNo">315</span><a name="line.315"></a>
-<span class="sourceLineNo">316</span>    private int currentRowCount;<a name="line.316"></a>
-<span class="sourceLineNo">317</span><a name="line.317"></a>
-<span class="sourceLineNo">318</span>    private final int rowUpperLimit;<a name="line.318"></a>
-<span class="sourceLineNo">319</span><a name="line.319"></a>
-<span class="sourceLineNo">320</span>    private final Visitor visitor;<a name="line.320"></a>
-<span class="sourceLineNo">321</span><a name="line.321"></a>
-<span class="sourceLineNo">322</span>    private final CompletableFuture&lt;Void&gt; future;<a name="line.322"></a>
-<span class="sourceLineNo">323</span><a name="line.323"></a>
-<span class="sourceLineNo">324</span>    MetaTableRawScanResultConsumer(int rowUpperLimit, Visitor visitor, CompletableFuture&lt;Void&gt; future) {<a name="line.324"></a>
-<span class="sourceLineNo">325</span>      this.rowUpperLimit = rowUpperLimit;<a name="line.325"></a>
-<span class="sourceLineNo">326</span>      this.visitor = visitor;<a name="line.326"></a>
-<span class="sourceLineNo">327</span>      this.future = future;<a name="line.327"></a>
-<span class="sourceLineNo">328</span>      this.currentRowCount = 0;<a name="line.328"></a>
-<span class="sourceLineNo">329</span>    }<a name="line.329"></a>
-<span class="sourceLineNo">330</span><a name="line.330"></a>
-<span class="sourceLineNo">331</span>    @Override<a name="line.331"></a>
-<span class="sourceLineNo">332</span>    public void onError(Throwable error) {<a name="line.332"></a>
-<span class="sourceLineNo">333</span>      future.completeExceptionally(error);<a name="line.333"></a>
-<span class="sourceLineNo">334</span>    }<a name="line.334"></a>
-<span class="sourceLineNo">335</span><a name="line.335"></a>
-<span class="sourceLineNo">336</span>    @Override<a name="line.336"></a>
-<span class="sourceLineNo">337</span>    @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "NP_NONNULL_PARAM_VIOLATION",<a name="line.337"></a>
-<span class="sourceLineNo">338</span>      justification = "https://github.com/findbugsproject/findbugs/issues/79")<a name="line.338"></a>
-<span class="sourceLineNo">339</span>    public void onComplete() {<a name="line.339"></a>
-<span class="sourceLineNo">340</span>      future.complete(null);<a name="line.340"></a>
-<span class="sourceLineNo">341</span>    }<a name="line.341"></a>
-<span class="sourceLineNo">342</span><a name="line.342"></a>
-<span class="sourceLineNo">343</span>    @Override<a name="line.343"></a>
-<span class="sourceLineNo">344</span>    public void onNext(Result[] results, ScanController controller) {<a name="line.344"></a>
-<span class="sourceLineNo">345</span>      for (Result result : results) {<a name="line.345"></a>
-<span class="sourceLineNo">346</span>        try {<a name="line.346"></a>
-<span class="sourceLineNo">347</span>          if (!visitor.visit(result)) {<a name="line.347"></a>
-<span class="sourceLineNo">348</span>            controller.terminate();<a name="line.348"></a>
-<span class="sourceLineNo">349</span>          }<a name="line.349"></a>
-<span class="sourceLineNo">350</span>        } catch (IOException e) {<a name="line.350"></a>
-<span class="sourceLineNo">351</span>          future.completeExceptionally(e);<a name="line.351"></a>
-<span class="sourceLineNo">352</span>          controller.terminate();<a name="line.352"></a>
-<span class="sourceLineNo">353</span>        }<a name="line.353"></a>
-<span class="sourceLineNo">354</span>        if (++currentRowCount &gt;= rowUpperLimit) {<a name="line.354"></a>
-<span class="sourceLineNo">355</span>          controller.terminate();<a name="line.355"></a>
-<span class="sourceLineNo">356</span>        }<a name="line.356"></a>
-<span class="sourceLineNo">357</span>      }<a name="line.357"></a>
-<span class="sourceLineNo">358</span>    }<a name="line.358"></a>
-<span class="sourceLineNo">359</span>  }<a name="line.359"></a>
-<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span>  private static Scan getMetaScan(RawAsyncTable metaTable, int rowUpperLimit) {<a name="line.361"></a>
-<span class="sourceLineNo">362</span>    Scan scan = new Scan();<a name="line.362"></a>
-<span class="sourceLineNo">363</span>    int scannerCaching = metaTable.getConfiguration().getInt(HConstants.HBASE_META_SCANNER_CACHING,<a name="line.363"></a>
-<span class="sourceLineNo">364</span>      HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);<a name="line.364"></a>
-<span class="sourceLineNo">365</span>    if (metaTable.getConfiguration().getBoolean(HConstants.USE_META_REPLICAS,<a name="line.365"></a>
-<span class="sourceLineNo">366</span>      HConstants.DEFAULT_USE_META_REPLICAS)) {<a name="line.366"></a>
-<span class="sourceLineNo">367</span>      scan.setConsistency(Consistency.TIMELINE);<a name="line.367"></a>
-<span class="sourceLineNo">368</span>    }<a name="line.368"></a>
-<span class="sourceLineNo">369</span>    if (rowUpperLimit &lt;= scannerCaching) {<a name="line.369"></a>
-<span class="sourceLineNo">370</span>      scan.setLimit(rowUpperLimit);<a name="line.370"></a>
-<span class="sourceLineNo">371</span>    }<a name="line.371"></a>
-<span class="sourceLineNo">372</span>    int rows = Math.min(rowUpperLimit, scannerCaching);<a name="line.372"></a>
-<span class="sourceLineNo">373</span>    scan.setCaching(rows);<a name="line.373"></a>
-<span class="sourceLineNo">374</span>    return scan;<a name="line.374"></a>
-<span class="sourceLineNo">375</span>  }<a name="line.375"></a>
-<span class="sourceLineNo">376</span><a name="line.376"></a>
-<span class="sourceLineNo">377</span>  /**<a name="line.377"></a>
-<span class="sourceLineNo">378</span>   * Returns an HRegionLocationList extracted from the result.<a name="line.378"></a>
-<span class="sourceLineNo">379</span>   * @return an HRegionLocationList containing all locations for the region range or null if we<a name="line.379"></a>
-<span class="sourceLineNo">380</span>   *         can't deserialize the result.<a name="line.380"></a>
-<span class="sourceLineNo">381</span>   */<a name="line.381"></a>
-<span class="sourceLineNo">382</span>  private static Optional&lt;RegionLocations&gt; getRegionLocations(final Result r) {<a name="line.382"></a>
-<span class="sourceLineNo">383</span>    if (r == null) return Optional.empty();<a name="line.383"></a>
-<span class="sourceLineNo">384</span>    Optional&lt;HRegionInfo&gt; regionInfo = getHRegionInfo(r, getRegionInfoColumn());<a name="line.384"></a>
-<span class="sourceLineNo">385</span>    if (!regionInfo.isPresent()) return Optional.empty();<a name="line.385"></a>
-<span class="sourceLineNo">386</span><a name="line.386"></a>
-<span class="sourceLineNo">387</span>    List&lt;HRegionLocation&gt; locations = new ArrayList&lt;HRegionLocation&gt;(1);<a name="line.387"></a>
-<span class="sourceLineNo">388</span>    NavigableMap&lt;byte[], NavigableMap&lt;byte[], byte[]&gt;&gt; familyMap = r.getNoVersionMap();<a name="line.388"></a>
-<span class="sourceLineNo">389</span><a name="line.389"></a>
-<span class="sourceLineNo">390</span>    locations.add(getRegionLocation(r, regionInfo.get(), 0));<a name="line.390"></a>
-<span class="sourceLineNo">391</span><a name="line.391"></a>
-<span class="sourceLineNo">392</span>    NavigableMap&lt;byte[], byte[]&gt; infoMap = familyMap.get(getCatalogFamily());<a name="line.392"></a>
-<span class="sourceLineNo">393</span>    if (infoMap == null) return Optional.of(new RegionLocations(locations));<a name="line.393"></a>
-<span class="sourceLineNo">394</span><a name="line.394"></a>
-<span class="sourceLineNo">395</span>    // iterate until all serverName columns are seen<a name="line.395"></a>
-<span class="sourceLineNo">396</span>    int replicaId = 0;<a name="line.396"></a>
-<span class="sourceLineNo">397</span>    byte[] serverColumn = getServerColumn(replicaId);<a name="line.397"></a>
-<span class="sourceLineNo">398</span>    SortedMap&lt;byte[], byte[]&gt; serverMap = null;<a name="line.398"></a>
-<span class="sourceLineNo">399</span>    serverMap = infoMap.tailMap(serverColumn, false);<a name="line.399"></a>
-<span class="sourceLineNo">400</span><a name="line.400"></a>
-<span class="sourceLineNo">401</span>    if (serverMap.isEmpty()) return Optional.of(new RegionLocations(locations));<a name="line.401"></a>
-<span class="sourceLineNo">402</span><a name="line.402"></a>
-<span class="sourceLineNo">403</span>    for (Map.Entry&lt;byte[], byte[]&gt; entry : serverMap.entrySet()) {<a name="line.403"></a>
-<span class="sourceLineNo">404</span>      replicaId = parseReplicaIdFromServerColumn(entry.getKey());<a name="line.404"></a>
-<span class="sourceLineNo">405</span>      if (replicaId &lt; 0) {<a name="line.405"></a>
-<span class="sourceLineNo">406</span>        break;<a name="line.406"></a>
-<span class="sourceLineNo">407</span>      }<a name="line.407"></a>
-<span class="sourceLineNo">408</span>      HRegionLocation location = getRegionLocation(r, regionInfo.get(), replicaId);<a name="line.408"></a>
-<span class="sourceLineNo">409</span>      // In case the region replica is newly created, it's location might be null. We usually do not<a name="line.409"></a>
-<span class="sourceLineNo">410</span>      // have HRL's in RegionLocations object with null ServerName. They are handled as null HRLs.<a name="line.410"></a>
-<span class="sourceLineNo">411</span>      if (location == null || location.getServerName() == null) {<a name="line.411"></a>
-<span class="sourceLineNo">412</span>        locations.add(null);<a name="line.412"></a>
-<span class="sourceLineNo">413</span>      } else {<a name="line.413"></a>
-<span class="sourceLineNo">414</span>        locations.add(location);<a name="line.414"></a>
-<span class="sourceLineNo">415</span>      }<a name="line.415"></a>
-<span class="sourceLineNo">416</span>    }<a name="line.416"></a>
-<span class="sourceLineNo">417</span><a name="line.417"></a>
-<span class="sourceLineNo">418</span>    return Optional.of(new RegionLocations(locations));<a name="line.418"></a>
-<span class="sourceLineNo">419</span>  }<a name="line.419"></a>
-<span class="sourceLineNo">420</span><a name="line.420"></a>
-<span class="sourceLineNo">421</span>  /**<a name="line.421"></a>
-<span class="sourceLineNo">422</span>   * Returns the HRegionLocation parsed from the given meta row Result<a name="line.422"></a>
-<span class="sourceLineNo">423</span>   * for the given regionInfo and replicaId. The regionInfo can be the default region info<a name="line.423"></a>
-<span class="sourceLineNo">424</span>   * for the replica.<a name="line.424"></a>
-<span class="sourceLineNo">425</span>   * @param r the meta row result<a name="line.425"></a>
-<span class="sourceLineNo">426</span>   * @param regionInfo RegionInfo for default replica<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   * @param replicaId the replicaId for the HRegionLocation<a name="line.427"></a>
-<span class="sourceLineNo">428</span>   * @return HRegionLocation parsed from the given meta row Result for the given replicaId<a name="line.428"></a>
-<span class="sourceLineNo">429</span>   */<a name="line.429"></a>
-<span class="sourceLineNo">430</span>  private static HRegionLocation getRegionLocation(final Result r, final HRegionInfo regionInfo,<a name="line.430"></a>
-<span class="sourceLineNo">431</span>      final int replicaId) {<a name="line.431"></a>
-<span class="sourceLineNo">432</span>    Optional&lt;ServerName&gt; serverName = getServerName(r, replicaId);<a name="line.432"></a>
-<span class="sourceLineNo">433</span>    long seqNum = getSeqNumDuringOpen(r, replicaId);<a name="line.433"></a>
-<span class="sourceLineNo">434</span>    HRegionInfo replicaInfo = RegionReplicaUtil.getRegionInfoForReplica(regionInfo, replicaId);<a name="line.434"></a>
-<span class="sourceLineNo">435</span>    return new HRegionLocation(replicaInfo, serverName.orElse(null), seqNum);<a name="line.435"></a>
-<span class="sourceLineNo">436</span>  }<a name="line.436"></a>
-<span class="sourceLineNo">437</span><a name="line.437"></a>
-<span class="sourceLineNo">438</span>  /**<a name="line.438"></a>
-<span class="sourceLineNo">439</span>   * Returns a {@link ServerName} from catalog table {@link Result}.<a name="line.439"></a>
-<span class="sourceLineNo">440</span>   * @param r Result to pull from<a name="line.440"></a>
-<span class="sourceLineNo">441</span>   * @return A ServerName instance.<a name="line.441"></a>
-<span class="sourceLineNo">442</span>   */<a name="line.442"></a>
-<span class="sourceLineNo">443</span>  private static Optional&lt;ServerName&gt; getServerName(final Result r, final int replicaId) {<a name="line.443"></a>
-<span class="sourceLineNo">444</span>    byte[] serverColumn = getServerColumn(replicaId);<a name="line.444"></a>
-<span class="sourceLineNo">445</span>    Cell cell = r.getColumnLatestCell(getCatalogFamily(), serverColumn);<a name="line.445"></a>
-<span class="sourceLineNo">446</span>    if (cell == null || cell.getValueLength() == 0) return Optional.empty();<a name="line.446"></a>
-<span class="sourceLineNo">447</span>    String hostAndPort = Bytes.toString(cell.getValueArray(), cell.getValueOffset(),<a name="line.447"></a>
-<span class="sourceLineNo">448</span>      cell.getValueLength());<a name="line.448"></a>
-<span class="sourceLineNo">449</span>    byte[] startcodeColumn = getStartCodeColumn(replicaId);<a name="line.449"></a>
-<span class="sourceLineNo">450</span>    cell = r.getColumnLatestCell(getCatalogFamily(), startcodeColumn);<a name="line.450"></a>
-<span class="sourceLineNo">451</span>    if (cell == null || cell.getValueLength() == 0) return Optional.empty();<a name="line.451"></a>
-<span class="sourceLineNo">452</span>    try {<a name="line.452"></a>
-<span class="sourceLineNo">453</span>      return Optional.of(ServerName.valueOf(hostAndPort,<a name="line.453"></a>
-<span class="sourceLineNo">454</span>        Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength())));<a name="line.454"></a>
-<span class="sourceLineNo">455</span>    } catch (IllegalArgumentException e) {<a name="line.455"></a>
-<span class="sourceLineNo">456</span>      LOG.error("Ignoring invalid region for server " + hostAndPort + "; cell=" + cell, e);<a name="line.456"></a>
-<span class="sourceLineNo">457</span>      return Optional.empty();<a name="line.457"></a>
-<span class="sourceLineNo">458</span>    }<a name="line.458"></a>
-<span class="sourceLineNo">459</span>  }<a name="line.459"></a>
-<span class="sourceLineNo">460</span><a name="line.460"></a>
-<span class="sourceLineNo">461</span>  /**<a name="line.461"></a>
-<span class="sourceLineNo">462</span>   * The latest seqnum that the server writing to meta observed when opening the region.<a name="line.462"></a>
-<span class="sourceLineNo">463</span>   * E.g. the seqNum when the result of {@link #getServerName(Result, int)} was written.<a name="line.463"></a>
-<span class="sourceLineNo">464</span>   * @param r Result to pull the seqNum from<a name="line.464"></a>
-<span class="sourceLineNo">465</span>   * @return SeqNum, or HConstants.NO_SEQNUM if there's no value written.<a name="line.465"></a>
-<span class="sourceLineNo">466</span>   */<a name="line.466"></a>
-<span class="sourceLineNo">467</span>  private static long getSeqNumDuringOpen(final Result r, final int replicaId) {<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    Cell cell = r.getColumnLatestCell(getCatalogFamily(), getSeqNumColumn(replicaId));<a name="line.468"></a>
-<span class="sourceLineNo">469</span>    if (cell == null || cell.getValueLength() == 0) return HConstants.NO_SEQNUM;<a name="line.469"></a>
-<span class="sourceLineNo">470</span>    return Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.470"></a>
-<span class="sourceLineNo">471</span>  }<a name="line.471"></a>
-<span class="sourceLineNo">472</span><a name="line.472"></a>
-<span class="sourceLineNo">473</span>  /**<a name="line.473"></a>
-<span class="sourceLineNo">474</span>   * @param tableName table we're working with<a name="line.474"></a>
-<span class="sourceLineNo">475</span>   * @return start row for scanning META according to query type<a name="line.475"></a>
-<span class="sourceLineNo">476</span>   */<a name="line.476"></a>
-<span class="sourceLineNo">477</span>  private static Optional&lt;byte[]&gt; getTableStartRowForMeta(Optional&lt;TableName&gt; tableName,<a name="line.477"></a>
-<span class="sourceLineNo">478</span>      QueryType type) {<a name="line.478"></a>
-<span class="sourceLineNo">479</span>    return tableName.map((table) -&gt; {<a name="line.479"></a>
-<span class="sourceLineNo">480</span>      switch (type) {<a name="line.480"></a>
-<span class="sourceLineNo">481</span>      case REGION:<a name="line.481"></a>
-<span class="sourceLineNo">482</span>        byte[] startRow = new byte[table.getName().length + 2];<a name="line.482"></a>
-<span class="sourceLineNo">483</span>        System.arraycopy(table.getName(), 0, startRow, 0, table.getName().length);<a name="line.483"></a>
-<span class="sourceLineNo">484</span>        startRow[startRow.length - 2] = HConstants.DELIMITER;<a name="line.484"></a>
-<span class="sourceLineNo">485</span>        startRow[startRow.length - 1] = HConstants.DELIMITER;<a name="line.485"></a>
-<span class="sourceLineNo">486</span>        return startRow;<a name="line.486"></a>
-<span class="sourceLineNo">487</span>      case ALL:<a name="line.487"></a>
-<span class="sourceLineNo">488</span>      case TABLE:<a name="line.488"></a>
-<span class="sourceLineNo">489</span>      default:<a name="line.489"></a>
-<span class="sourceLineNo">490</span>        return table.getName();<a name="line.490"></a>
-<span class="sourceLineNo">491</span>      }<a name="line.491"></a>
-<span class="sourceLineNo">492</span>    });<a name="line.492"></a>
-<span class="sourceLineNo">493</span>  }<a name="line.493"></a>
-<span class="sourceLineNo">494</span><a name="line.494"></a>
-<span class="sourceLineNo">495</span>  /**<a name="line.495"></a>
-<span class="sourceLineNo">496</span>   * @param tableName table we're working with<a name="line.496"></a>
-<span class="sourceLineNo">497</span>   * @return stop row for scanning META according to query type<a name="line.497"></a>
-<span class="sourceLineNo">498</span>   */<a name="line.498"></a>
-<span class="sourceLineNo">499</span>  private static Optional&lt;byte[]&gt; getTableStopRowForMeta(Optional&lt;TableName&gt; tableName,<a name="line.499"></a>
-<span class="sourceLineNo">500</span>      QueryType type) {<a name="line.500"></a>
-<span class="sourceLineNo">501</span>    return tableName.map((table) -&gt; {<a name="line.501"></a>
-<span class="sourceLineNo">502</span>      final byte[] stopRow;<a name="line.502"></a>
-<span class="sourceLineNo">503</span>      switch (type) {<a name="line.503"></a>
-<span class="sourceLineNo">504</span>      case REGION:<a name="line.504"></a>
-<span class="sourceLineNo">505</span>        stopRow = new byte[table.getName().length + 3];<a name="line.505"></a>
-<span class="sourceLineNo">506</span>        System.arraycopy(table.getName(), 0, stopRow, 0, table.getName().length);<a name="line.506"></a>
-<span class="sourceLineNo">507</span>        stopRow[stopRow.length - 3] = ' ';<a name="line.507"></a>
-<span class="sourceLineNo">508</span>        stopRow[stopRow.length - 2] = HConstants.DELIMITER;<a name="line.508"></a>
-<span class="sourceLineNo">509</span>        stopRow[stopRow.length - 1] = HConstants.DELIMITER;<a name="line.509"></a>
-<span class="sourceLineNo">510</span>        break;<a name="line.510"></a>
-<span class="sourceLineNo">511</span>      case ALL:<a name="line.511"></a>
-<span class="sourceLineNo">512</span>      case TABLE:<a name="line.512"></a>
-<span class="sourceLineNo">513</span>      default:<a name="line.513"></a>
-<span class="sourceLineNo">514</span>        stopRow = new byte[table.getName().length + 1];<a name="line.514"></a>
-<span class="sourceLineNo">515</span>        System.arraycopy(table.getName(), 0, stopRow, 0, table.getName().length);<a name="line.515"></a>
-<span class="sourceLineNo">516</span>        stopRow[stopRow.length - 1] = ' ';<a name="line.516"></a>
-<span class="sourceLineNo">517</span>        break;<a name="line.517"></a>
-<span class="sourceLineNo">518</span>      }<a name="line.518"></a>
-<span class="sourceLineNo">519</span>      return stopRow;<a name="line.519"></a>
-<span class="sourceLineNo">520</span>    });<a name="line.520"></a>
-<span class="sourceLineNo">521</span>  }<a name="line.521"></a>
-<span class="sourceLineNo">522</span><a name="line.522"></a>
-<span class="sourceLineNo">523</span>  /**<a name="line.523"></a>
-<span class="sourceLineNo">524</span>   * Returns the HRegionInfo object from the column {@link HConstants#CATALOG_FAMILY} and<a name="line.524"></a>
-<span class="sourceLineNo">525</span>   * &lt;code&gt;qualifier&lt;/code&gt; of the catalog table result.<a name="line.525"></a>
-<span class="sourceLineNo">526</span>   * @param r a Result object from the catalog table scan<a name="line.526"></a>
-<span class="sourceLineNo">527</span>   * @param qualifier Column family qualifier<a name="line.527"></a>
-<span class="sourceLineNo">528</span>   * @return An HRegionInfo instance.<a name="line.528"></a>
-<span class="sourceLineNo">529</span>   */<a name="line.529"></a>
-<span class="sourceLineNo">530</span>  private static Optional&lt;HRegionInfo&gt; getHRegionInfo(final Result r, byte[] qualifier) {<a name="line.530"></a>
-<span class="sourceLineNo">531</span>    Cell cell = r.getColumnLatestCell(getCatalogFamily(), qualifier);<a name="line.531"></a>
-<span class="sourceLineNo">532</span>    if (cell == null) return Optional.empty();<a name="line.532"></a>
-<span class="sourceLineNo">533</span>    return Optional.ofNullable(HRegionInfo.parseFromOrNull(cell.getValueArray(),<a name="line.533"></a>
-<span class="sourceLineNo">534</span>      cell.getValueOffset(), cell.getValueLength()));<a name="line.534"></a>
-<span class="sourceLineNo">535</span>  }<a name="line.535"></a>
-<span class="sourceLineNo">536</span><a name="line.536"></a>
-<span class="sourceLineNo">537</span>  /**<a name="line.537"></a>
-<span class="sourceLineNo">538</span>   * Returns the column family used for meta columns.<a name="line.538"></a>
-<span class="sourceLineNo">539</span>   * @return HConstants.CATALOG_FAMILY.<a name="line.539"></a>
-<span class="sourceLineNo">540</span>   */<a name="line.540"></a>
-<span class="sourceLineNo">541</span>  private static byte[] getCatalogFamily() {<a name="line.541"></a>
-<span class="sourceLineNo">542</span>    return HConstants.CATALOG_FAMILY;<a name="line.542"></a>
-<span class="sourceLineNo">543</span>  }<a name="line.543"></a>
-<span class="sourceLineNo">544</span><a name="line.544"></a>
-<span class="sourceLineNo">545</span>  /**<a name="line.545"></a>
-<span class="sourceLineNo">546</span>   * Returns the column family used for table columns.<a name="line.546"></a>
-<span class="sourceLineNo">547</span>   * @return HConstants.TABLE_FAMILY.<a name="line.547"></a>
-<span class="sourceLineNo">548</span>   */<a name="line.548"></a>
-<span class="sourceLineNo">549</span>  private static byte[] getTableFamily() {<a name="line.549"></a>
-<span class="sourceLineNo">550</span>    return HConstants.TABLE_FAMILY;<a name="line.550"></a>
-<span class="sourceLineNo">551</span>  }<a name="line.551"></a>
-<span class="sourceLineNo">552</span><a name="line.552"></a>
-<span class="sourceLineNo">553</span>  /**<a name="line.553"></a>
-<span class="sourceLineNo">554</span>   * Returns the column qualifier for serialized region info<a name="line.554"></a>
-<span class="sourceLineNo">555</span>   * @return HConstants.REGIONINFO_QUALIFIER<a name="line.555"></a>
-<span class="sourceLineNo">556</span>   */<a name="line.556"></a>
-<span class="sourceLineNo">557</span>  private static byte[] getRegionInfoColumn() {<a name="line.557"></a>
-<span class="sourceLineNo">558</span>    return HConstants.REGIONINFO_QUALIFIER;<a name="line.558"></a>
-<span class="sourceLineNo">559</span>  }<a name="line.559"></a>
-<span class="sourceLineNo">560</span><a name="line.560"></a>
-<span class="sourceLineNo">561</span>  /**<a name="line.561"></a>
-<span class="sourceLineNo">562</span>   * Returns the column qualifier for serialized table state<a name="line.562"></a>
-<span class="sourceLineNo">563</span>   * @return HConstants.TABLE_STATE_QUALIFIER<a name="line.563"></a>
-<span class="sourceLineNo">564</span>   */<a name="line.564"></a>
-<span class="sourceLineNo">565</span>  private static byte[] getStateColumn() {<a name="line.565"></a>
-<span class="sourceLineNo">566</span>    return HConstants.TABLE_STATE_QUALIFIER;<a name="line.566"></a>
-<span class="sourceLineNo">567</span>  }<a name="line.567"></a>
-<span class="sourceLineNo">568</span><a name="line.568"></a>
-<span class="sourceLineNo">569</span>  /**<a name="line.569"></a>
-<span class="sourceLineNo">570</span>   * Returns the column qualifier for server column for replicaId<a name="line.570"></a>
-<span class="sourceLineNo">571</span>   * @param replicaId the replicaId of the region<a name="line.571"></a>
-<span class="sourceLineNo">572</span>   * @return a byte[] for server column qualifier<a name="line.572"></a>
-<span class="sourceLineNo">573</span>   */<a name="line.573"></a>
-<span class="sourceLineNo">574</span>  private static byte[] getServerColumn(int replicaId) {<a name="line.574"></a>
-<span class="sourceLineNo">575</span>    return replicaId == 0<a name="line.575"></a>
-<span class="sourceLineNo">576</span>      ? HConstants.SERVER_QUALIFIER<a name="line.576"></a>
-<span class="sourceLineNo">577</span>      : Bytes.toBytes(HConstants.SERVER_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.577"></a>
-<span class="sourceLineNo">578</span>      + String.format(HRegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.578"></a>
-<span class="sourceLineNo">579</span>  }<a name="line.579"></a>
-<span class="sourceLineNo">580</span><a name="line.580"></a>
-<span class="sourceLineNo">581</span>  /**<a name="line.581"></a>
-<span class="sourceLineNo">582</span>   * Returns the column qualifier for server start code column for replicaId<a name="line.582"></a>
-<span class="sourceLineNo">583</span>   * @param replicaId the replicaId of the region<a name="line.583"></a>
-<span class="sourceLineNo">584</span>   * @return a byte[] for server start code column qualifier<a name="line.584"></a>
-<span class="sourceLineNo">585</span>   */<a name="line.585"></a>
-<span class="sourceLineNo">586</span>  private static byte[] getStartCodeColumn(int replicaId) {<a name="line.586"></a>
-<span class="sourceLineNo">587</span>    return replicaId == 0<a name="line.587"></a>
-<span class="sourceLineNo">588</span>      ? HConstants.STARTCODE_QUALIFIER<a name="line.588"></a>
-<span class="sourceLineNo">589</span>      : Bytes.toBytes(HConstants.STARTCODE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.589"></a>
-<span class="sourceLineNo">590</span>      + String.format(HRegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.590"></a>
-<span class="sourceLineNo">591</span>  }<a name="line.591"></a>
-<span class="sourceLineNo">592</span><a name="line.592"></a>
-<span class="sourceLineNo">593</span>  /**<a name="line.593"></a>
-<span class="sourceLineNo">594</span>   * Returns the column qualifier for seqNum column for replicaId<a name="line.594"></a>
-<span class="sourceLineNo">595</span>   * @param replicaId the replicaId of the region<a name="line.595"></a>
-<span class="sourceLineNo">596</span>   * @return a byte[] for seqNum column qualifier<a name="line.596"></a>
-<span class="sourceLineNo">597</span>   */<a name="line.597"></a>
-<span class="sourceLineNo">598</span>  private static byte[] getSeqNumColumn(int replicaId) {<a name="line.598"></a>
-<span class="sourceLineNo">599</span>    return replicaId == 0<a name="line.599"></a>
-<span class="sourceLineNo">600</span>      ? HConstants.SEQNUM_QUALIFIER<a name="line.600"></a>
-<span class="sourceLineNo">601</span>      : Bytes.toBytes(HConstants.SEQNUM_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.601"></a>
-<span class="sourceLineNo">602</span>      + String.format(HRegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.602"></a>
-<span class="sourceLineNo">603</span>  }<a name="line.603"></a>
-<span class="sourceLineNo">604</span><a name="line.604"></a>
-<span class="sourceLineNo">605</span>  /**<a name="line.605"></a>
-<span class="sourceLineNo">606</span>   * Parses the replicaId from the server column qualifier. See top of the class javadoc<a name="line.606"></a>
-<span class="sourceLineNo">607</span>   * for the actual meta layout<a name="line.607"></a>
-<span class="sourceLineNo">608</span>   * @param serverColumn the column qualifier<a name="line.608"></a>
-<span class="sourceLineNo">609</span>   * @return an int for the replicaId<a name="line.609"></a>
-<span class="sourceLineNo">610</span>   */<a name="line.610"></a>
-<span class="sourceLineNo">611</span>  private static int parseReplicaIdFromServerColumn(byte[] serverColumn) {<a name="line.611"></a>
-<span class="sourceLineNo">612</span>    String serverStr = Bytes.toString(serverColumn);<a name="line.612"></a>
-<span class="sourceLineNo">613</span><a name="line.613"></a>
-<span class="sourceLineNo">614</span>    Matcher matcher = SERVER_COLUMN_PATTERN.matcher(serverStr);<a name="line.614"></a>
-<span class="sourceLineNo">615</span>    if (matcher.matches() &amp;&amp; matcher.groupCount() &gt; 0) {<a name="line.615"></a>
-<span class="sourceLineNo">616</span>      String group = matcher.group(1);<a name="line.616"></a>
-<span class="sourceLineNo">617</span>      if (group != null &amp;&amp; group.length() &gt; 0) {<a name="line.617"></a>
-<span class="sourceLineNo">618</span>        return Integer.parseInt(group.substring(1), 16);<a name="line.618"></a>
-<span class="sourceLineNo">619</span>      } else {<a name="line.619"></a>
-<span class="sourceLineNo">620</span>        return 0;<a name="line.620"></a>
-<span class="sourceLineNo">621</span>      }<a name="line.621"></a>
-<span class="sourceLineNo">622</span>    }<a name="line.622"></a>
-<span class="sourceLineNo">623</span>    return -1;<a name="line.623"></a>
-<span class="sourceLineNo">624</span>  }<a name="line.624"></a>
-<span class="sourceLineNo">625</span>}<a name="line.625"></a>
+<span class="sourceLineNo">066</span>  /** The delimiter for meta columns for replicaIds &amp;gt; 0 */<a name="line.66"></a>
+<span class="sourceLineNo">067</span>  private static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.67"></a>
+<span class="sourceLineNo">068</span><a name="line.68"></a>
+<span class="sourceLineNo">069</span>  /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.69"></a>
+<span class="sourceLineNo">070</span>  private static final Pattern SERVER_COLUMN_PATTERN = Pattern<a name="line.70"></a>
+<span class="sourceLineNo">071</span>      .compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.71"></a>
+<span class="sourceLineNo">072</span><a name="line.72"></a>
+<span class="sourceLineNo">073</span>  public static CompletableFuture&lt;Boolean&gt; tableExists(RawAsyncTable metaTable, TableName tableName) {<a name="line.73"></a>
+<span class="sourceLineNo">074</span>    if (tableName.equals(META_TABLE_NAME)) {<a name="line.74"></a>
+<span class="sourceLineNo">075</span>      return CompletableFuture.completedFuture(true);<a name="line.75"></a>
+<span class="sourceLineNo">076</span>    }<a name="line.76"></a>
+<span class="sourceLineNo">077</span>    return getTableState(metaTable, tableName).thenApply(Optional::isPresent);<a name="line.77"></a>
+<span class="sourceLineNo">078</span>  }<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span>  public static CompletableFuture&lt;Optional&lt;TableState&gt;&gt; getTableState(RawAsyncTable metaTable,<a name="line.80"></a>
+<span class="sourceLineNo">081</span>      TableName tableName) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span>    CompletableFuture&lt;Optional&lt;TableState&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.82"></a>
+<span class="sourceLineNo">083</span>    Get get = new Get(tableName.getName()).addColumn(getTableFamily(), getStateColumn());<a name="line.83"></a>
+<span class="sourceLineNo">084</span>    long time = EnvironmentEdgeManager.currentTime();<a name="line.84"></a>
+<span class="sourceLineNo">085</span>    try {<a name="line.85"></a>
+<span class="sourceLineNo">086</span>      get.setTimeRange(0, time);<a name="line.86"></a>
+<span class="sourceLineNo">087</span>      metaTable.get(get).whenComplete((result, error) -&gt; {<a name="line.87"></a>
+<span class="sourceLineNo">088</span>        if (error != null) {<a name="line.88"></a>
+<span class="sourceLineNo">089</span>          future.completeExceptionally(error);<a name="line.89"></a>
+<span class="sourceLineNo">090</span>          return;<a name="line.90"></a>
+<span class="sourceLineNo">091</span>        }<a name="line.91"></a>
+<span class="sourceLineNo">092</span>        try {<a name="line.92"></a>
+<span class="sourceLineNo">093</span>          future.complete(getTableState(result));<a name="line.93"></a>
+<span class="sourceLineNo">094</span>        } catch (IOException e) {<a name="line.94"></a>
+<span class="sourceLineNo">095</span>          future.completeExceptionally(e);<a name="line.95"></a>
+<span class="sourceLineNo">096</span>        }<a name="line.96"></a>
+<span class="sourceLineNo">097</span>      });<a name="line.97"></a>
+<span class="sourceLineNo">098</span>    } catch (IOException ioe) {<a name="line.98"></a>
+<span class="sourceLineNo">099</span>      future.completeExceptionally(ioe);<a name="line.99"></a>
+<span class="sourceLineNo">100</span>    }<a name="line.100"></a>
+<span class="sourceLineNo">101</span>    return future;<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  }<a name="line.102"></a>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span>  /**<a name="line.104"></a>
+<span class="sourceLineNo">105</span>   * Returns the HRegionLocation from meta for the given region<a name="line.105"></a>
+<span class="sourceLineNo">106</span>   * @param metaTable<a name="line.106"></a>
+<span class="sourceLineNo">107</span>   * @param regionName region we're looking for<a name="line.107"></a>
+<span class="sourceLineNo">108</span>   * @return HRegionLocation for the given region<a name="line.108"></a>
+<span class="sourceLineNo">109</span>   */<a name="line.109"></a>
+<span class="sourceLineNo">110</span>  public static CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; getRegionLocation(<a name="line.110"></a>
+<span class="sourceLineNo">111</span>      RawAsyncTable metaTable, byte[] regionName) {<a name="line.111"></a>
+<span class="sourceLineNo">112</span>    CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.112"></a>
+<span class="sourceLineNo">113</span>    try {<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      HRegionInfo parsedRegionInfo = MetaTableAccessor.parseRegionInfoFromRegionName(regionName);<a name="line.114"></a>
+<span class="sourceLineNo">115</span>      metaTable.get(<a name="line.115"></a>
+<span class="sourceLineNo">116</span>        new Get(MetaTableAccessor.getMetaKeyForRegion(parsedRegionInfo))<a name="line.116"></a>
+<span class="sourceLineNo">117</span>            .addFamily(HConstants.CATALOG_FAMILY)).whenComplete(<a name="line.117"></a>
+<span class="sourceLineNo">118</span>        (r, err) -&gt; {<a name="line.118"></a>
+<span class="sourceLineNo">119</span>          if (err != null) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>            future.completeExceptionally(err);<a name="line.120"></a>
+<span class="sourceLineNo">121</span>            return;<a name="line.121"></a>
+<span class="sourceLineNo">122</span>          }<a name="line.122"></a>
+<span class="sourceLineNo">123</span>          future.complete(getRegionLocations(r).map(<a name="line.123"></a>
+<span class="sourceLineNo">124</span>            locations -&gt; locations.getRegionLocation(parsedRegionInfo.getReplicaId())));<a name="line.124"></a>
+<span class="sourceLineNo">125</span>        });<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    } catch (IOException parseEx) {<a name="line.126"></a>
+<span class="sourceLineNo">127</span>      LOG.warn("Failed to parse the passed region name: " + Bytes.toStringBinary(regionName));<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      future.completeExceptionally(parseEx);<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    }<a name="line.129"></a>
+<span class="sourceLineNo">130</span>    return future;<a name="line.130"></a>
+<span class="sourceLineNo">131</span>  }<a name="line.131"></a>
+<span class="sourceLineNo">132</span><a name="line.132"></a>
+<span class="sourceLineNo">133</span>  /**<a name="line.133"></a>
+<span class="sourceLineNo">134</span>   * Returns the HRegionLocation from meta for the given encoded region name<a name="line.134"></a>
+<span class="sourceLineNo">135</span>   * @param metaTable<a name="line.135"></a>
+<span class="sourceLineNo">136</span>   * @param encodedRegionName region we're looking for<a name="line.136"></a>
+<span class="sourceLineNo">137</span>   * @return HRegionLocation for the given region<a name="line.137"></a>
+<span class="sourceLineNo">138</span>   */<a name="line.138"></a>
+<span class="sourceLineNo">139</span>  public static CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; getRegionLocationWithEncodedName(<a name="line.139"></a>
+<span class="sourceLineNo">140</span>      RawAsyncTable metaTable, byte[] encodedRegionName) {<a name="line.140"></a>
+<span class="sourceLineNo">141</span>    CompletableFuture&lt;Optional&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.141"></a>
+<span class="sourceLineNo">142</span>    metaTable.scanAll(new Scan().setReadType(ReadType.PREAD).addFamily(HConstants.CATALOG_FAMILY))<a name="line.142"></a>
+<span class="sourceLineNo">143</span>        .whenComplete(<a name="line.143"></a>
+<span class="sourceLineNo">144</span>          (results, err) -&gt; {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>            if (err != null) {<a name="line.145"></a>
+<span class="sourceLineNo">146</span>              future.completeExceptionally(err);<a name="line.146"></a>
+<span class="sourceLineNo">147</span>              return;<a name="line.147"></a>
+<span class="sourceLineNo">148</span>            }<a name="line.148"></a>
+<span class="sourceLineNo">149</span>            String encodedRegionNameStr = Bytes.toString(encodedRegionName);<a name="line.149"></a>
+<span class="sourceLineNo">150</span>            results<a name="line.150"></a>
+<span class="sourceLineNo">151</span>                .stream()<a name="line.151"></a>
+<span class="sourceLineNo">152</span>                .filter(result -&gt; !result.isEmpty())<a name="line.152"></a>
+<span class="sourceLineNo">153</span>                .filter(result -&gt; MetaTableAccessor.getHRegionInfo(result) != null)<a name="line.153"></a>
+<span class="sourceLineNo">154</span>                .forEach(<a name="line.154"></a>
+<span class="sourceLineNo">155</span>                  result -&gt; {<a name="line.155"></a>
+<span class="sourceLineNo">156</span>                    getRegionLocations(result).ifPresent(<a name="line.156"></a>
+<span class="sourceLineNo">157</span>                      locations -&gt; {<a name="line.157"></a>
+<span class="sourceLineNo">158</span>                        for (HRegionLocation location : locations.getRegionLocations()) {<a name="line.158"></a>
+<span class="sourceLineNo">159</span>                          if (location != null<a name="line.159"></a>
+<span class="sourceLineNo">160</span>                              &amp;&amp; encodedRegionNameStr.equals(location.getRegionInfo()<a name="line.160"></a>
+<span class="sourceLineNo">161</span>                                  .getEncodedName())) {<a name="line.161"></a>
+<span class="sourceLineNo">162</span>                            future.complete(Optional.of(location));<a name="line.162"></a>
+<span class="sourceLineNo">163</span>                            return;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>                          }<a name="line.164"></a>
+<span class="sourceLineNo">165</span>                        }<a name="line.165"></a>
+<span class="sourceLineNo">166</span>                      });<a name="line.166"></a>
+<span class="sourceLineNo">167</span>                  });<a name="line.167"></a>
+<span class="sourceLineNo">168</span>            future.complete(Optional.empty());<a name="line.168"></a>
+<span class="sourceLineNo">169</span>          });<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    return future;<a name="line.170"></a>
+<span class="sourceLineNo">171</span>  }<a name="line.171"></a>
+<span class="sourceLineNo">172</span><a name="line.172"></a>
+<span class="sourceLineNo">173</span>  private static Optional&lt;TableState&gt; getTableState(Result r) throws IOException {<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    Cell cell = r.getColumnLatestCell(getTableFamily(), getStateColumn());<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    if (cell == null) return Optional.empty();<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    try {<a name="line.176"></a>
+<span class="sourceLineNo">177</span>      return Optional.of(TableState.parseFrom(<a name="line.177"></a>
+<span class="sourceLineNo">178</span>        TableName.valueOf(r.getRow()),<a name="line.178"></a>
+<span class="sourceLineNo">179</span>        Arrays.copyOfRange(cell.getValueArray(), cell.getValueOffset(), cell.getValueOffset()<a name="line.179"></a>
+<span class="sourceLineNo">180</span>            + cell.getValueLength())));<a name="line.180"></a>
+<span class="sourceLineNo">181</span>    } catch (DeserializationException e) {<a name="line.181"></a>
+<span class="sourceLineNo">182</span>      throw new IOException("Failed to parse table state from result: " + r, e);<a name="line.182"></a>
+<span class="sourceLineNo">183</span>    }<a name="line.183"></a>
+<span class="sourceLineNo">184</span>  }<a name="line.184"></a>
+<span class="sourceLineNo">185</span><a name="line.185"></a>
+<span class="sourceLineNo">186</span>  /**<a name="line.186"></a>
+<span class="sourceLineNo">187</span>   * Used to get all region locations for the specific table.<a name="line.187"></a>
+<span class="sourceLineNo">188</span>   * @param metaTable<a name="line.188"></a>
+<span class="sourceLineNo">189</span>   * @param tableName table we're looking for, can be null for getting all regions<a name="line.189"></a>
+<span class="sourceLineNo">190</span>   * @return the list of region locations. The return value will be wrapped by a<a name="line.190"></a>
+<span class="sourceLineNo">191</span>   *         {@link CompletableFuture}.<a name="line.191"></a>
+<span class="sourceLineNo">192</span>   */<a name="line.192"></a>
+<span class="sourceLineNo">193</span>  public static CompletableFuture&lt;List&lt;HRegionLocation&gt;&gt; getTableHRegionLocations(<a name="line.193"></a>
+<span class="sourceLineNo">194</span>      RawAsyncTable metaTable, final Optional&lt;TableName&gt; tableName) {<a name="line.194"></a>
+<span class="sourceLineNo">195</span>    CompletableFuture&lt;List&lt;HRegionLocation&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.195"></a>
+<span class="sourceLineNo">196</span>    getTableRegionsAndLocations(metaTable, tableName, true).whenComplete(<a name="line.196"></a>
+<span class="sourceLineNo">197</span>      (locations, err) -&gt; {<a name="line.197"></a>
+<span class="sourceLineNo">198</span>        if (err != null) {<a name="line.198"></a>
+<span class="sourceLineNo">199</span>          future.completeExceptionally(err);<a name="line.199"></a>
+<span class="sourceLineNo">200</span>        } else if (locations == null || locations.isEmpty()) {<a name="line.200"></a>
+<span class="sourceLineNo">201</span>          future.complete(Collections.emptyList());<a name="line.201"></a>
+<span class="sourceLineNo">202</span>        } else {<a name="line.202"></a>
+<span class="sourceLineNo">203</span>          List&lt;HRegionLocation&gt; regionLocations = locations.stream()<a name="line.203"></a>
+<span class="sourceLineNo">204</span>              .map(loc -&gt; new HRegionLocation(loc.getFirst(), loc.getSecond()))<a name="line.204"></a>
+<span class="sourceLineNo">205</span>              .collect(Collectors.toList());<a name="line.205"></a>
+<span class="sourceLineNo">206</span>          future.complete(regionLocations);<a name="line.206"></a>
+<span class="sourceLineNo">207</span>        }<a name="line.207"></a>
+<span class="sourceLineNo">208</span>      });<a name="line.208"></a>
+<span class="sourceLineNo">209</span>    return future;<a name="line.209"></a>
+<span class="sourceLineNo">210</span>  }<a name="line.210"></a>
+<span class="sourceLineNo">211</span><a name="line.211"></a>
+<span class="sourceLineNo">212</span>  /**<a name="line.212"></a>
+<span class="sourceLineNo">213</span>   * Used to get table regions' info and server.<a name="line.213"></a>
+<span class="sourceLineNo">214</span>   * @param metaTable<a name="line.214"></a>
+<span class="sourceLineNo">215</span>   * @param tableName table we're looking for, can be null for getting all regions<a name="line.215"></a>
+<span class="sourceLineNo">216</span>   * @param excludeOfflinedSplitParents don't return split parents<a name="line.216"></a>
+<span class="sourceLineNo">217</span>   * @return the list of regioninfos and server. The return value will be wrapped by a<a name="line.217"></a>
+<span class="sourceLineNo">218</span>   *         {@link CompletableFuture}.<a name="line.218"></a>
+<span class="sourceLineNo">219</span>   */<a name="line.219"></a>
+<span class="sourceLineNo">220</span>  private static CompletableFuture&lt;List&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;&gt; getTableRegionsAndLocations(<a name="line.220"></a>
+<span class="sourceLineNo">221</span>      RawAsyncTable metaTable, final Optional&lt;TableName&gt; tableName,<a name="line.221"></a>
+<span class="sourceLineNo">222</span>      final boolean excludeOfflinedSplitParents) {<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    CompletableFuture&lt;List&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;&gt; future = new CompletableFuture&lt;&gt;();<a name="line.223"></a>
+<span class="sourceLineNo">224</span>    if (tableName.filter((t) -&gt; t.equals(TableName.META_TABLE_NAME)).isPresent()) {<a name="line.224"></a>
+<span class="sourceLineNo">225</span>      future.completeExceptionally(new IOException(<a name="line.225"></a>
+<span class="sourceLineNo">226</span>          "This method can't be used to locate meta regions;" + " use MetaTableLocator instead"));<a name="line.226"></a>
+<span class="sourceLineNo">227</span>    }<a name="line.227"></a>
+<span class="sourceLineNo">228</span><a name="line.228"></a>
+<span class="sourceLineNo">229</span>    // Make a version of CollectingVisitor that collects HRegionInfo and ServerAddress<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    CollectingVisitor&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt; visitor = new CollectingVisitor&lt;Pair&lt;HRegionInfo, ServerName&gt;&gt;() {<a name="line.230"></a>
+<span class="sourceLineNo">231</span>      private Optional&lt;RegionLocations&gt; current = null;<a name="line.231"></a>
+<span class="sourceLineNo">232</span><a name="line.232"></a>
+<span class="sourceLineNo">233</span>      @Override<a name="line.233"></a>
+<span class="sourceLineNo">234</span>      public boolean visit(Result r) throws IOException {<a name="line.234"></a>
+<span class="sourceLineNo">235</span>        current = getRegionLocations(r);<a name="line.235"></a>
+<span class="sourceLineNo">236</span>        if (!current.isPresent() || current.get().getRegionLocation().getRegionInfo() == null) {<a name="line.236"></a>
+<span class="sourceLineNo">237</span>          LOG.warn("No serialized HRegionInfo in " + r);<a name="line.237"></a>
+<span class="sourceLineNo">238</span>          return true;<a name="line.238"></a>
+<span class="sourceLineNo">239</span>        }<a name="line.239"></a>
+<span class="sourceLineNo">240</span>        HRegionInfo hri = current.get().getRegionLocation().getRegionInfo();<a name="line.240"></a>
+<span class="sourceLineNo">241</span>        if (excludeOfflinedSplitParents &amp;&amp; hri.isSplitParent()) return true;<a name="line.241"></a>
+<span class="sourceLineNo">242</span>        // Else call super and add this Result to the collection.<a name="line.242"></a>
+<span class="sourceLineNo">243</span>        return super.visit(r);<a name="line.243"></a>
+<span class="sourceLineNo">244</span>      }<a name="line.244"></a>
+<span class="sourceLineNo">245</span><a name="line.245"></a>
+<span class="sourceLineNo">246</span>      @Override<a name="line.246"></a>
+<span class="sourceLineNo">247</span>      void add(Result r) {<a name="line.247"></a>
+<span class="sourceLineNo">248</span>        if (!current.isPresent()) {<a name="line.248"></a>
+<span class="sourceLineNo">249</span>          return;<a name="line.249"></a>
+<span class="sourceLineNo">250</span>        }<a name="line.250"></a>
+<span class="sourceLineNo">251</span>        for (HRegionLocation loc : current.get().getRegionLocations()) {<a name="line.251"></a>
+<span class="sourceLineNo">252</span>          if (loc != null) {<a name="line.252"></a>
+<span class="sourceLineNo">253</span>            this.results.add(new Pair&lt;HRegionInfo, ServerName&gt;(loc.getRegionInfo(), loc<a name="line.253"></a>
+<span class="sourceLineNo">254</span>                .getServerName()));<a name="line.254"></a>
+<span class="sourceLineNo">255</span>          }<a name="line.255"></a>
+<span class="sourceLineNo">256</span>        }<a name="line.256"></a>
+<span class="sourceLineNo">257</span>      }<a name="line.257"></a>
+<span class="sourceLineNo">258</span>    };<a name="line.258"></a>
+<span class="sourceLineNo">259</span><a name="line.259"></a>
+<span class="sourceLineNo">260</span>    scanMeta(metaTable, tableName, QueryType.REGION, visitor).whenComplete((v, error) -&gt; {<a name="line.260"></a>
+<span class="sourceLineNo">261</span>      if (error != null) {<a name="line.261"></a>
+<span class="sourceLineNo">262</span>        future.completeExceptionally(error);<a name="line.262"></a>
+<span class="sourceLineNo">263</span>        return;<a name="line.263"></a>
+<span class="sourceLineNo">264</span>      }<a name="line.264"></a>
+<span class="sourceLineNo">265</span>      future.complete(visitor.getResults());<a name="line.265"></a>
+<span class="sourceLineNo">266</span>    });<a name="line.266"></a>
+<span class="sourceLineNo">267</span>    return future;<a name="line.267"></a>
+<span class="sourceLineNo">268</span>  }<a name="line.268"></a>
+<span class="sourceLineNo">269</span><a name="line.269"></a>
+<span class="sourceLineNo">270</span>  /**<a name="line.270"></a>
+<span class="sourceLineNo">271</span>   * Performs a scan of META table for given table.<a name="line.271"></a>
+<span class="sourceLineNo">272</span>   * @param metaTable<a name="line.272"></a>
+<span class="sourceLineNo">273</span>   * @param tableName table withing we scan<a name="line.273"></a>
+<span class="sourceLineNo">274</span>   * @param type scanned part of meta<a name="line.274"></a>
+<span class="sourceLineNo">275</span>   * @param visitor Visitor invoked against each row<a name="line.275"></a>
+<span class="sourceLineNo">276</span>   */<a name="line.276"></a>
+<span class="sourceLineNo">277</span>  private static CompletableFuture&lt;Void&gt; scanMeta(RawAsyncTable metaTable,<a name="line.277"></a>
+<span class="sourceLineNo">278</span>      Optional&lt;TableName&gt; tableName, QueryType type, final Visitor visitor) {<a name="line.278"></a>
+<span class="sourceLineNo">279</span>    return scanMeta(metaTable, getTableStartRowForMeta(tableName, type),<a name="line.279"></a>
+<span class="sourceLineNo">280</span>      getTableStopRowForMeta(tableName, type), type, Integer.MAX_VALUE, visitor);<a name="line.280"></a>
+<span class="sourceLineNo">281</span>  }<a name="line.281"></a>
+<span class="sourceLineNo">282</span><a name="line.282"></a>
+<span class="sourceLineNo">283</span>  /**<a name="line.283"></a>
+<span class="sourceLineNo">284</span>   * Performs a scan of META table for given table.<a name="line.284"></a>
+<span class="sourceLineNo">285</span>   * @param metaTable<a name="line.285"></a>
+<span class="sourceLineNo">286</span>   * @param startRow Where to start the scan<a name="line.286"></a>
+<span class="sourceLineNo">287</span>   * @param stopRow Where to stop the scan<a name="line.287"></a>
+<span class="sourceLineNo">288</span>   * @param type scanned part of meta<a name="line.288"></a>
+<span class="sourceLineNo">289</span>   * @param maxRows maximum rows to return<a name="line.289"></a>
+<span class="sourceLineNo">290</span>   * @param visitor Visitor invoked against each row<a name="line.290"></a>
+<span class="sourceLineNo">291</span>   */<a name="line.291"></a>
+<span class="sourceLineNo">292</span>  private static CompletableFuture&lt;Void&gt; scanMeta(RawAsyncTable metaTable, Optional&lt;byte[]&gt; startRow,<a name="line.292"></a>
+<span class="sourceLineNo">293</span>      Optional&lt;byte[]&gt; stopRow, QueryType type, int maxRows, final Visitor visitor) {<a name="line.293"></a>
+<span class="sourceLineNo">294</span>    int rowUpperLimit = maxRows &gt; 0 ? maxRows : Integer.MAX_VALUE;<a name="line.294"></a>
+<span class="sourceLineNo">295</span>    Scan scan = getMetaScan(metaTable, rowUpperLimit);<a name="line.295"></a>
+<span class="sourceLineNo">296</span>    for (byte[] family : type.getFamilies()) {<a name="line.296"></a>
+<span class="sourceLineNo">297</span>      scan.addFamily(family);<a name="line.297"></a>
+<span class="sourceLineNo">298</span>    }<a name="line.298"></a>
+<span class="sourceLineNo">299</span>    startRow.ifPresent(scan::withStartRow);<a name="line.299"></a>
+<span class="sourceLineNo">300</span>    stopRow.ifPresent(scan::withStopRow);<a name="line.300"></a>
+<span class="sourceLineNo">301</span><a name="line.301"></a>
+<span class="sourceLineNo">302</span>    if (LOG.isTraceEnabled()) {<a name="line.302"></a>
+<span class="sourceLineNo">303</span>      LOG.trace("Scanning META" + " starting at row=" + Bytes.toStringBinary(scan.getStartRow())<a name="line.303"></a>
+<span class="sourceLineNo">304</span>          + " stopping at row=" + Bytes.toStringBinary(scan.getStopRow()) + " for max="<a name="line.304"></a>
+<span class="sourceLineNo">305</span>          + rowUpperLimit + " with caching=" + scan.getCaching());<a name="line.305"></a>
+<span class="sourceLineNo">306</span>    }<a name="line.306"></a>
+<span class="sourceLineNo">307</span><a name="line.307"></a>
+<span class="sourceLineNo">308</span>    CompletableFuture&lt;Void&gt; future = new CompletableFuture&lt;Void&gt;();<a name="line.308"></a>
+<span class="sourceLineNo">309</span>    metaTable.scan(scan, new MetaTableRawScanResultConsumer(rowUpperLimit, visitor, future));<a name="line.309"></a>
+<span class="sourceLineNo">310</span>    return future;<a name="line.310"></a>
+<span class="sourceLineNo">311</span>  }<a name="line.311"></a>
+<span class="sourceLineNo">312</span><a name="line.312"></a>
+<span class="sourceLineNo">313</span>  private static final class MetaTableRawScanResultConsumer implements RawScanResultConsumer {<a name="line.313"></a>
+<span class="sourceLineNo">314</span><a name="line.314"></a>
+<span class="sourceLineNo">315</span>    private int currentRowCount;<a name="line.315"></a>
+<span class="sourceLineNo">316</span><a name="line.316"></a>
+<span class="sourceLineNo">317</span>    private final int rowUpperLimit;<a name="line.317"></a>
+<span class="sourceLineNo">318</span><a name="line.318"></a>
+<span class="sourceLineNo">319</span>    private final Visitor visitor;<a name="line.319"></a>
+<span class="sourceLineNo">320</span><a name="line.320"></a>
+<span class="sourceLineNo">321</span>    private final CompletableFuture&lt;Void&gt; future;<a name="line.321"></a>
+<span class="sourceLineNo">322</span><a name="line.322"></a>
+<span class="sourceLineNo">323</span>    MetaTableRawScanResultConsumer(int rowUpperLimit, Visitor visitor, CompletableFuture&lt;Void&gt; future) {<a name="line.323"></a>
+<span class="sourceLineNo">324</span>      this.rowUpperLimit = rowUpperLimit;<a name="line.324"></a>
+<span class="sourceLineNo">325</span>      this.visitor = visitor;<a name="line.325"></a>
+<span class="sourceLineNo">326</span>      this.future = future;<a name="line.326"></a>
+<span class="sourceLineNo">327</span>      this.currentRowCount = 0;<a name="line.327"></a>
+<span class="sourceLineNo">328</span>    }<a name="line.328"></a>
+<span class="sourceLineNo">329</span><a name="line.329"></a>
+<span class="sourceLineNo">330</span>    @Override<a name="line.330"></a>
+<span class="sourceLine

<TRUNCATED>

Mime
View raw message