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From git-site-r...@apache.org
Subject [35/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Sat, 13 May 2017 14:59:17 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e0a5167/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.CancelCommand.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.CancelCommand.html b/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.CancelCommand.html
index cc40d21..2df0b04 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.CancelCommand.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.CancelCommand.html
@@ -61,8 +61,8 @@
 <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.backup.BackupRestoreConstants;<a name="line.53"></a>
 <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.backup.BackupRestoreConstants.BackupCommand;<a name="line.54"></a>
 <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.backup.BackupType;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.backup.util.BackupUtils;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.backup.util.BackupSet;<a name="line.57"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.backup.util.BackupSet;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.backup.util.BackupUtils;<a name="line.57"></a>
 <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.58"></a>
 <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.59"></a>
 <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.60"></a>
@@ -122,670 +122,703 @@
 <span class="sourceLineNo">114</span><a name="line.114"></a>
 <span class="sourceLineNo">115</span>  public static abstract class Command extends Configured {<a name="line.115"></a>
 <span class="sourceLineNo">116</span>    CommandLine cmdline;<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
+<span class="sourceLineNo">117</span>    Connection conn;<a name="line.117"></a>
 <span class="sourceLineNo">118</span>    Command(Configuration conf) {<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      super(conf);<a name="line.119"></a>
-<span class="sourceLineNo">120</span>    }<a name="line.120"></a>
-<span class="sourceLineNo">121</span><a name="line.121"></a>
-<span class="sourceLineNo">122</span>    public void execute() throws IOException {<a name="line.122"></a>
-<span class="sourceLineNo">123</span>      if (cmdline.hasOption("h") || cmdline.hasOption("help")) {<a name="line.123"></a>
-<span class="sourceLineNo">124</span>        printUsage();<a name="line.124"></a>
-<span class="sourceLineNo">125</span>        throw new IOException(INCORRECT_USAGE);<a name="line.125"></a>
-<span class="sourceLineNo">126</span>      }<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    }<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span>    protected abstract void printUsage();<a name="line.129"></a>
-<span class="sourceLineNo">130</span>  }<a name="line.130"></a>
-<span class="sourceLineNo">131</span><a name="line.131"></a>
-<span class="sourceLineNo">132</span>  private BackupCommands() {<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    throw new AssertionError("Instantiating utility class...");<a name="line.133"></a>
-<span class="sourceLineNo">134</span>  }<a name="line.134"></a>
-<span class="sourceLineNo">135</span><a name="line.135"></a>
-<span class="sourceLineNo">136</span>  public static Command createCommand(Configuration conf, BackupCommand type, CommandLine cmdline) {<a name="line.136"></a>
-<span class="sourceLineNo">137</span>    Command cmd = null;<a name="line.137"></a>
-<span class="sourceLineNo">138</span>    switch (type) {<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    case CREATE:<a name="line.139"></a>
-<span class="sourceLineNo">140</span>      cmd = new CreateCommand(conf, cmdline);<a name="line.140"></a>
-<span class="sourceLineNo">141</span>      break;<a name="line.141"></a>
-<span class="sourceLineNo">142</span>    case DESCRIBE:<a name="line.142"></a>
-<span class="sourceLineNo">143</span>      cmd = new DescribeCommand(conf, cmdline);<a name="line.143"></a>
-<span class="sourceLineNo">144</span>      break;<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    case PROGRESS:<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      cmd = new ProgressCommand(conf, cmdline);<a name="line.146"></a>
-<span class="sourceLineNo">147</span>      break;<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    case DELETE:<a name="line.148"></a>
-<span class="sourceLineNo">149</span>      cmd = new DeleteCommand(conf, cmdline);<a name="line.149"></a>
-<span class="sourceLineNo">150</span>      break;<a name="line.150"></a>
-<span class="sourceLineNo">151</span>    case CANCEL:<a name="line.151"></a>
-<span class="sourceLineNo">152</span>      cmd = new CancelCommand(conf, cmdline);<a name="line.152"></a>
-<span class="sourceLineNo">153</span>      break;<a name="line.153"></a>
-<span class="sourceLineNo">154</span>    case HISTORY:<a name="line.154"></a>
-<span class="sourceLineNo">155</span>      cmd = new HistoryCommand(conf, cmdline);<a name="line.155"></a>
-<span class="sourceLineNo">156</span>      break;<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    case SET:<a name="line.157"></a>
-<span class="sourceLineNo">158</span>      cmd = new BackupSetCommand(conf, cmdline);<a name="line.158"></a>
-<span class="sourceLineNo">159</span>      break;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    case HELP:<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    default:<a name="line.161"></a>
-<span class="sourceLineNo">162</span>      cmd = new HelpCommand(conf, cmdline);<a name="line.162"></a>
-<span class="sourceLineNo">163</span>      break;<a name="line.163"></a>
-<span class="sourceLineNo">164</span>    }<a name="line.164"></a>
-<span class="sourceLineNo">165</span>    return cmd;<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>  static int numOfArgs(String[] args) {<a name="line.168"></a>
-<span class="sourceLineNo">169</span>    if (args == null) return 0;<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    return args.length;<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>  public static class CreateCommand extends Command {<a name="line.173"></a>
-<span class="sourceLineNo">174</span><a name="line.174"></a>
-<span class="sourceLineNo">175</span>    CreateCommand(Configuration conf, CommandLine cmdline) {<a name="line.175"></a>
-<span class="sourceLineNo">176</span>      super(conf);<a name="line.176"></a>
-<span class="sourceLineNo">177</span>      this.cmdline = cmdline;<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    }<a name="line.178"></a>
-<span class="sourceLineNo">179</span><a name="line.179"></a>
-<span class="sourceLineNo">180</span>    @Override<a name="line.180"></a>
-<span class="sourceLineNo">181</span>    public void execute() throws IOException {<a name="line.181"></a>
-<span class="sourceLineNo">182</span>      super.execute();<a name="line.182"></a>
-<span class="sourceLineNo">183</span>      if (cmdline == null || cmdline.getArgs() == null) {<a name="line.183"></a>
-<span class="sourceLineNo">184</span>        printUsage();<a name="line.184"></a>
-<span class="sourceLineNo">185</span>        throw new IOException(INCORRECT_USAGE);<a name="line.185"></a>
-<span class="sourceLineNo">186</span>      }<a name="line.186"></a>
-<span class="sourceLineNo">187</span>      String[] args = cmdline.getArgs();<a name="line.187"></a>
-<span class="sourceLineNo">188</span>      if (args.length !=3) {<a name="line.188"></a>
-<span class="sourceLineNo">189</span>        printUsage();<a name="line.189"></a>
-<span class="sourceLineNo">190</span>        throw new IOException(INCORRECT_USAGE);<a name="line.190"></a>
-<span class="sourceLineNo">191</span>      }<a name="line.191"></a>
-<span class="sourceLineNo">192</span><a name="line.192"></a>
-<span class="sourceLineNo">193</span>      if (!BackupType.FULL.toString().equalsIgnoreCase(args[1])<a name="line.193"></a>
-<span class="sourceLineNo">194</span>          &amp;&amp; !BackupType.INCREMENTAL.toString().equalsIgnoreCase(args[1])) {<a name="line.194"></a>
-<span class="sourceLineNo">195</span>        System.out.println("ERROR: invalid backup type: " + args[1]);<a name="line.195"></a>
-<span class="sourceLineNo">196</span>        printUsage();<a name="line.196"></a>
-<span class="sourceLineNo">197</span>        throw new IOException(INCORRECT_USAGE);<a name="line.197"></a>
-<span class="sourceLineNo">198</span>      }<a name="line.198"></a>
-<span class="sourceLineNo">199</span>      if (!verifyPath(args[2])) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span>        System.out.println("ERROR: invalid backup destination: " + args[2]);<a name="line.200"></a>
-<span class="sourceLineNo">201</span>        printUsage();<a name="line.201"></a>
-<span class="sourceLineNo">202</span>        throw new IOException(INCORRECT_USAGE);<a name="line.202"></a>
-<span class="sourceLineNo">203</span>      }<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span>      String tables = null;<a name="line.205"></a>
-<span class="sourceLineNo">206</span>      Configuration conf = getConf() != null ? getConf() : HBaseConfiguration.create();<a name="line.206"></a>
-<span class="sourceLineNo">207</span><a name="line.207"></a>
-<span class="sourceLineNo">208</span>      // Check if we have both: backup set and list of tables<a name="line.208"></a>
-<span class="sourceLineNo">209</span>      if (cmdline.hasOption(OPTION_TABLE) &amp;&amp; cmdline.hasOption(OPTION_SET)) {<a name="line.209"></a>
-<span class="sourceLineNo">210</span>        System.out.println("ERROR: You can specify either backup set or list"<a name="line.210"></a>
-<span class="sourceLineNo">211</span>            + " of tables, but not both");<a name="line.211"></a>
-<span class="sourceLineNo">212</span>        printUsage();<a name="line.212"></a>
-<span class="sourceLineNo">213</span>        throw new IOException(INCORRECT_USAGE);<a name="line.213"></a>
-<span class="sourceLineNo">214</span>      }<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span>      // Check backup set<a name="line.216"></a>
-<span class="sourceLineNo">217</span>      String setName = null;<a name="line.217"></a>
-<span class="sourceLineNo">218</span>      if (cmdline.hasOption(OPTION_SET)) {<a name="line.218"></a>
-<span class="sourceLineNo">219</span>        setName = cmdline.getOptionValue(OPTION_SET);<a name="line.219"></a>
-<span class="sourceLineNo">220</span>        tables = getTablesForSet(setName, conf);<a name="line.220"></a>
-<span class="sourceLineNo">221</span><a name="line.221"></a>
-<span class="sourceLineNo">222</span>        if (tables == null) {<a name="line.222"></a>
-<span class="sourceLineNo">223</span>          System.out.println("ERROR: Backup set '" + setName<a name="line.223"></a>
-<span class="sourceLineNo">224</span>              + "' is either empty or does not exist");<a name="line.224"></a>
-<span class="sourceLineNo">225</span>          printUsage();<a name="line.225"></a>
-<span class="sourceLineNo">226</span>          throw new IOException(INCORRECT_USAGE);<a name="line.226"></a>
-<span class="sourceLineNo">227</span>        }<a name="line.227"></a>
-<span class="sourceLineNo">228</span>      } else {<a name="line.228"></a>
-<span class="sourceLineNo">229</span>        tables = cmdline.getOptionValue(OPTION_TABLE);<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      }<a name="line.230"></a>
-<span class="sourceLineNo">231</span>      int bandwidth =<a name="line.231"></a>
-<span class="sourceLineNo">232</span>          cmdline.hasOption(OPTION_BANDWIDTH) ? Integer.parseInt(cmdline<a name="line.232"></a>
-<span class="sourceLineNo">233</span>              .getOptionValue(OPTION_BANDWIDTH)) : -1;<a name="line.233"></a>
-<span class="sourceLineNo">234</span>      int workers =<a name="line.234"></a>
-<span class="sourceLineNo">235</span>          cmdline.hasOption(OPTION_WORKERS) ? Integer.parseInt(cmdline<a name="line.235"></a>
-<span class="sourceLineNo">236</span>              .getOptionValue(OPTION_WORKERS)) : -1;<a name="line.236"></a>
-<span class="sourceLineNo">237</span><a name="line.237"></a>
-<span class="sourceLineNo">238</span>      try (Connection conn = ConnectionFactory.createConnection(getConf());<a name="line.238"></a>
-<span class="sourceLineNo">239</span>          BackupAdminImpl admin = new BackupAdminImpl(conn);) {<a name="line.239"></a>
-<span class="sourceLineNo">240</span><a name="line.240"></a>
-<span class="sourceLineNo">241</span>       BackupRequest.Builder builder = new BackupRequest.Builder();<a name="line.241"></a>
-<span class="sourceLineNo">242</span>       BackupRequest request = builder.withBackupType(BackupType.valueOf(args[1].toUpperCase()))<a name="line.242"></a>
-<span class="sourceLineNo">243</span>            .withTableList(tables != null ?<a name="line.243"></a>
-<span class="sourceLineNo">244</span>                          Lists.newArrayList(BackupUtils.parseTableNames(tables)) : null)<a name="line.244"></a>
-<span class="sourceLineNo">245</span>            .withTargetRootDir(args[2])<a name="line.245"></a>
-<span class="sourceLineNo">246</span>            .withTotalTasks(workers)<a name="line.246"></a>
-<span class="sourceLineNo">247</span>            .withBandwidthPerTasks(bandwidth)<a name="line.247"></a>
-<span class="sourceLineNo">248</span>            .withBackupSetName(setName).build();<a name="line.248"></a>
-<span class="sourceLineNo">249</span>        String backupId = admin.backupTables(request);<a name="line.249"></a>
-<span class="sourceLineNo">250</span>        System.out.println("Backup session " + backupId + " finished. Status: SUCCESS");<a name="line.250"></a>
-<span class="sourceLineNo">251</span>      } catch (IOException e) {<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        System.out.println("Backup session finished. Status: FAILURE");<a name="line.252"></a>
-<span class="sourceLineNo">253</span>        throw e;<a name="line.253"></a>
-<span class="sourceLineNo">254</span>      }<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>    private boolean verifyPath(String path) {<a name="line.257"></a>
-<span class="sourceLineNo">258</span>      try {<a name="line.258"></a>
-<span class="sourceLineNo">259</span>        Path p = new Path(path);<a name="line.259"></a>
-<span class="sourceLineNo">260</span>        Configuration conf = getConf() != null ? getConf() : HBaseConfiguration.create();<a name="line.260"></a>
-<span class="sourceLineNo">261</span>        URI uri = p.toUri();<a name="line.261"></a>
-<span class="sourceLineNo">262</span>        if (uri.getScheme() == null) return false;<a name="line.262"></a>
-<span class="sourceLineNo">263</span>        FileSystem.get(uri, conf);<a name="line.263"></a>
-<span class="sourceLineNo">264</span>        return true;<a name="line.264"></a>
-<span class="sourceLineNo">265</span>      } catch (Exception e) {<a name="line.265"></a>
-<span class="sourceLineNo">266</span>        return false;<a name="line.266"></a>
-<span class="sourceLineNo">267</span>      }<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>    private String getTablesForSet(String name, Configuration conf) throws IOException {<a name="line.270"></a>
-<span class="sourceLineNo">271</span>      try (final Connection conn = ConnectionFactory.createConnection(conf);<a name="line.271"></a>
-<span class="sourceLineNo">272</span>          final BackupSystemTable table = new BackupSystemTable(conn)) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span>        List&lt;TableName&gt; tables = table.describeBackupSet(name);<a name="line.273"></a>
-<span class="sourceLineNo">274</span>        if (tables == null) return null;<a name="line.274"></a>
-<span class="sourceLineNo">275</span>        return StringUtils.join(tables, BackupRestoreConstants.TABLENAME_DELIMITER_IN_COMMAND);<a name="line.275"></a>
-<span class="sourceLineNo">276</span>      }<a name="line.276"></a>
-<span class="sourceLineNo">277</span>    }<a name="line.277"></a>
+<span class="sourceLineNo">119</span>      if (conf == null) {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>        conf = HBaseConfiguration.create();<a name="line.120"></a>
+<span class="sourceLineNo">121</span>      }<a name="line.121"></a>
+<span class="sourceLineNo">122</span>      setConf(conf);<a name="line.122"></a>
+<span class="sourceLineNo">123</span>    }<a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">125</span>    public void execute() throws IOException {<a name="line.125"></a>
+<span class="sourceLineNo">126</span>      if (cmdline.hasOption("h") || cmdline.hasOption("help")) {<a name="line.126"></a>
+<span class="sourceLineNo">127</span>        printUsage();<a name="line.127"></a>
+<span class="sourceLineNo">128</span>        throw new IOException(INCORRECT_USAGE);<a name="line.128"></a>
+<span class="sourceLineNo">129</span>      }<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>      // Create connection<a name="line.131"></a>
+<span class="sourceLineNo">132</span>      conn = ConnectionFactory.createConnection(getConf());<a name="line.132"></a>
+<span class="sourceLineNo">133</span>      if (requiresNoActiveSession()) {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>        // Check active session<a name="line.134"></a>
+<span class="sourceLineNo">135</span>        try (BackupSystemTable table = new BackupSystemTable(conn);) {<a name="line.135"></a>
+<span class="sourceLineNo">136</span>          List&lt;BackupInfo&gt; sessions = table.getBackupInfos(BackupState.RUNNING);<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>          if(sessions.size() &gt; 0) {<a name="line.138"></a>
+<span class="sourceLineNo">139</span>            System.err.println("Found backup session in a RUNNING state: ");<a name="line.139"></a>
+<span class="sourceLineNo">140</span>            System.err.println(sessions.get(0));<a name="line.140"></a>
+<span class="sourceLineNo">141</span>            System.err.println("This may indicate that a previous session has failed abnormally.");<a name="line.141"></a>
+<span class="sourceLineNo">142</span>            System.err.println("In this case, backup recovery is recommended.");<a name="line.142"></a>
+<span class="sourceLineNo">143</span>            throw new IOException("Active session found, aborted command execution");<a name="line.143"></a>
+<span class="sourceLineNo">144</span>          }<a name="line.144"></a>
+<span class="sourceLineNo">145</span>        }<a name="line.145"></a>
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+<span class="sourceLineNo">147</span>    }<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>    public void finish() throws IOException {<a name="line.149"></a>
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+<span class="sourceLineNo">151</span>        conn.close();<a name="line.151"></a>
+<span class="sourceLineNo">152</span>      }<a name="line.152"></a>
+<span class="sourceLineNo">153</span>    }<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>    protected abstract void printUsage();<a name="line.155"></a>
+<span class="sourceLineNo">156</span><a name="line.156"></a>
+<span class="sourceLineNo">157</span>    /**<a name="line.157"></a>
+<span class="sourceLineNo">158</span>     * The command can't be run if active backup session is in progress<a name="line.158"></a>
+<span class="sourceLineNo">159</span>     * @return true if no active sessions are in progress<a name="line.159"></a>
+<span class="sourceLineNo">160</span>     */<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    protected boolean requiresNoActiveSession() {<a name="line.161"></a>
+<span class="sourceLineNo">162</span>      return false;<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    }<a name="line.163"></a>
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+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>  private BackupCommands() {<a name="line.166"></a>
+<span class="sourceLineNo">167</span>    throw new AssertionError("Instantiating utility class...");<a name="line.167"></a>
+<span class="sourceLineNo">168</span>  }<a name="line.168"></a>
+<span class="sourceLineNo">169</span><a name="line.169"></a>
+<span class="sourceLineNo">170</span>  public static Command createCommand(Configuration conf, BackupCommand type, CommandLine cmdline) {<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    Command cmd = null;<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    switch (type) {<a name="line.172"></a>
+<span class="sourceLineNo">173</span>    case CREATE:<a name="line.173"></a>
+<span class="sourceLineNo">174</span>      cmd = new CreateCommand(conf, cmdline);<a name="line.174"></a>
+<span class="sourceLineNo">175</span>      break;<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    case DESCRIBE:<a name="line.176"></a>
+<span class="sourceLineNo">177</span>      cmd = new DescribeCommand(conf, cmdline);<a name="line.177"></a>
+<span class="sourceLineNo">178</span>      break;<a name="line.178"></a>
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