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From git-site-r...@apache.org
Subject [18/51] [partial] hbase-site git commit: Published site at 82d554e3783372cc6b05489452c815b57c06f6cd.
Date Mon, 24 Jul 2017 19:08:20 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2d5075d7/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.CompletedProcedureCleaner.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.CompletedProcedureCleaner.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.CompletedProcedureCleaner.html
index afd9ccc..904b921 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.CompletedProcedureCleaner.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.CompletedProcedureCleaner.html
@@ -30,1916 +30,1984 @@
 <span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a name="line.22"></a>
 <span class="sourceLineNo">023</span><a name="line.23"></a>
 <span class="sourceLineNo">024</span>import java.io.IOException;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import java.util.Arrays;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import java.util.HashSet;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.Iterator;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.Map;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.Set;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.stream.Collectors;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.stream.Stream;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import java.util.concurrent.DelayQueue;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import java.util.concurrent.TimeUnit;<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.commons.logging.Log;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.commons.logging.LogFactory;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.conf.Configuration;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.HConstants;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.ProcedureInfo;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.exceptions.IllegalArgumentIOException;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.procedure2.Procedure.LockState;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore.ProcedureIterator;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil.DelayedWithTimeout;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.security.User;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.util.NonceKey;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span>/**<a name="line.63"></a>
-<span class="sourceLineNo">064</span> * Thread Pool that executes the submitted procedures.<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * The executor has a ProcedureStore associated.<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * Each operation is logged and on restart the pending procedures are resumed.<a name="line.66"></a>
-<span class="sourceLineNo">067</span> *<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * Unless the Procedure code throws an error (e.g. invalid user input)<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * the procedure will complete (at some point in time), On restart the pending<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * procedures are resumed and the once failed will be rolledback.<a name="line.70"></a>
-<span class="sourceLineNo">071</span> *<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * The user can add procedures to the executor via submitProcedure(proc)<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * check for the finished state via isFinished(procId)<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * and get the result via getResult(procId)<a name="line.74"></a>
-<span class="sourceLineNo">075</span> */<a name="line.75"></a>
-<span class="sourceLineNo">076</span>@InterfaceAudience.Private<a name="line.76"></a>
-<span class="sourceLineNo">077</span>@InterfaceStability.Evolving<a name="line.77"></a>
-<span class="sourceLineNo">078</span>public class ProcedureExecutor&lt;TEnvironment&gt; {<a name="line.78"></a>
-<span class="sourceLineNo">079</span>  private static final Log LOG = LogFactory.getLog(ProcedureExecutor.class);<a name="line.79"></a>
-<span class="sourceLineNo">080</span><a name="line.80"></a>
-<span class="sourceLineNo">081</span>  public static final String CHECK_OWNER_SET_CONF_KEY = "hbase.procedure.check.owner.set";<a name="line.81"></a>
-<span class="sourceLineNo">082</span>  private static final boolean DEFAULT_CHECK_OWNER_SET = false;<a name="line.82"></a>
-<span class="sourceLineNo">083</span><a name="line.83"></a>
-<span class="sourceLineNo">084</span>  public static final String WORKER_KEEP_ALIVE_TIME_CONF_KEY =<a name="line.84"></a>
-<span class="sourceLineNo">085</span>      "hbase.procedure.worker.keep.alive.time.msec";<a name="line.85"></a>
-<span class="sourceLineNo">086</span>  private static final long DEFAULT_WORKER_KEEP_ALIVE_TIME = Long.MAX_VALUE;<a name="line.86"></a>
-<span class="sourceLineNo">087</span><a name="line.87"></a>
-<span class="sourceLineNo">088</span>  Testing testing = null;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>  public static class Testing {<a name="line.89"></a>
-<span class="sourceLineNo">090</span>    protected boolean killIfSuspended = false;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>    protected boolean killBeforeStoreUpdate = false;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>    protected boolean toggleKillBeforeStoreUpdate = false;<a name="line.92"></a>
-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span>    protected boolean shouldKillBeforeStoreUpdate() {<a name="line.94"></a>
-<span class="sourceLineNo">095</span>      final boolean kill = this.killBeforeStoreUpdate;<a name="line.95"></a>
-<span class="sourceLineNo">096</span>      if (this.toggleKillBeforeStoreUpdate) {<a name="line.96"></a>
-<span class="sourceLineNo">097</span>        this.killBeforeStoreUpdate = !kill;<a name="line.97"></a>
-<span class="sourceLineNo">098</span>        LOG.warn("Toggle KILL before store update to: " + this.killBeforeStoreUpdate);<a name="line.98"></a>
-<span class="sourceLineNo">099</span>      }<a name="line.99"></a>
-<span class="sourceLineNo">100</span>      return kill;<a name="line.100"></a>
-<span class="sourceLineNo">101</span>    }<a name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span>    protected boolean shouldKillBeforeStoreUpdate(final boolean isSuspended) {<a name="line.103"></a>
-<span class="sourceLineNo">104</span>      return (isSuspended &amp;&amp; !killIfSuspended) ? false : shouldKillBeforeStoreUpdate();<a name="line.104"></a>
-<span class="sourceLineNo">105</span>    }<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  }<a name="line.106"></a>
-<span class="sourceLineNo">107</span><a name="line.107"></a>
-<span class="sourceLineNo">108</span>  public interface ProcedureExecutorListener {<a name="line.108"></a>
-<span class="sourceLineNo">109</span>    void procedureLoaded(long procId);<a name="line.109"></a>
-<span class="sourceLineNo">110</span>    void procedureAdded(long procId);<a name="line.110"></a>
-<span class="sourceLineNo">111</span>    void procedureFinished(long procId);<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  }<a name="line.112"></a>
-<span class="sourceLineNo">113</span><a name="line.113"></a>
-<span class="sourceLineNo">114</span>  /**<a name="line.114"></a>
-<span class="sourceLineNo">115</span>   * Internal cleaner that removes the completed procedure results after a TTL.<a name="line.115"></a>
-<span class="sourceLineNo">116</span>   * NOTE: This is a special case handled in timeoutLoop().<a name="line.116"></a>
-<span class="sourceLineNo">117</span>   *<a name="line.117"></a>
-<span class="sourceLineNo">118</span>   * &lt;p&gt;Since the client code looks more or less like:<a name="line.118"></a>
-<span class="sourceLineNo">119</span>   * &lt;pre&gt;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>   *   procId = master.doOperation()<a name="line.120"></a>
-<span class="sourceLineNo">121</span>   *   while (master.getProcResult(procId) == ProcInProgress);<a name="line.121"></a>
-<span class="sourceLineNo">122</span>   * &lt;/pre&gt;<a name="line.122"></a>
-<span class="sourceLineNo">123</span>   * The master should not throw away the proc result as soon as the procedure is done<a name="line.123"></a>
-<span class="sourceLineNo">124</span>   * but should wait a result request from the client (see executor.removeResult(procId))<a name="line.124"></a>
-<span class="sourceLineNo">125</span>   * The client will call something like master.isProcDone() or master.getProcResult()<a name="line.125"></a>
-<span class="sourceLineNo">126</span>   * which will return the result/state to the client, and it will mark the completed<a name="line.126"></a>
-<span class="sourceLineNo">127</span>   * proc as ready to delete. note that the client may not receive the response from<a name="line.127"></a>
-<span class="sourceLineNo">128</span>   * the master (e.g. master failover) so, if we delay a bit the real deletion of<a name="line.128"></a>
-<span class="sourceLineNo">129</span>   * the proc result the client will be able to get the result the next try.<a name="line.129"></a>
-<span class="sourceLineNo">130</span>   */<a name="line.130"></a>
-<span class="sourceLineNo">131</span>  private static class CompletedProcedureCleaner&lt;TEnvironment&gt;<a name="line.131"></a>
-<span class="sourceLineNo">132</span>      extends ProcedureInMemoryChore&lt;TEnvironment&gt; {<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    private static final Log LOG = LogFactory.getLog(CompletedProcedureCleaner.class);<a name="line.133"></a>
-<span class="sourceLineNo">134</span><a name="line.134"></a>
-<span class="sourceLineNo">135</span>    private static final String CLEANER_INTERVAL_CONF_KEY = "hbase.procedure.cleaner.interval";<a name="line.135"></a>
-<span class="sourceLineNo">136</span>    private static final int DEFAULT_CLEANER_INTERVAL = 30 * 1000; // 30sec<a name="line.136"></a>
-<span class="sourceLineNo">137</span><a name="line.137"></a>
-<span class="sourceLineNo">138</span>    private static final String EVICT_TTL_CONF_KEY = "hbase.procedure.cleaner.evict.ttl";<a name="line.138"></a>
-<span class="sourceLineNo">139</span>    private static final int DEFAULT_EVICT_TTL = 15 * 60000; // 15min<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span>    private static final String EVICT_ACKED_TTL_CONF_KEY ="hbase.procedure.cleaner.acked.evict.ttl";<a name="line.141"></a>
-<span class="sourceLineNo">142</span>    private static final int DEFAULT_ACKED_EVICT_TTL = 5 * 60000; // 5min<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span>    private static final String BATCH_SIZE_CONF_KEY = "hbase.procedure.cleaner.evict.batch.size";<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    private static final int DEFAULT_BATCH_SIZE = 32;<a name="line.145"></a>
-<span class="sourceLineNo">146</span><a name="line.146"></a>
-<span class="sourceLineNo">147</span>    private final Map&lt;Long, ProcedureInfo&gt; completed;<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    private final Map&lt;NonceKey, Long&gt; nonceKeysToProcIdsMap;<a name="line.148"></a>
-<span class="sourceLineNo">149</span>    private final ProcedureStore store;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>    private Configuration conf;<a name="line.150"></a>
-<span class="sourceLineNo">151</span><a name="line.151"></a>
-<span class="sourceLineNo">152</span>    public CompletedProcedureCleaner(final Configuration conf, final ProcedureStore store,<a name="line.152"></a>
-<span class="sourceLineNo">153</span>        final Map&lt;Long, ProcedureInfo&gt; completedMap,<a name="line.153"></a>
-<span class="sourceLineNo">154</span>        final Map&lt;NonceKey, Long&gt; nonceKeysToProcIdsMap) {<a name="line.154"></a>
-<span class="sourceLineNo">155</span>      // set the timeout interval that triggers the periodic-procedure<a name="line.155"></a>
-<span class="sourceLineNo">156</span>      super(conf.getInt(CLEANER_INTERVAL_CONF_KEY, DEFAULT_CLEANER_INTERVAL));<a name="line.156"></a>
-<span class="sourceLineNo">157</span>      this.completed = completedMap;<a name="line.157"></a>
-<span class="sourceLineNo">158</span>      this.nonceKeysToProcIdsMap = nonceKeysToProcIdsMap;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>      this.store = store;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>      this.conf = conf;<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    }<a name="line.161"></a>
-<span class="sourceLineNo">162</span><a name="line.162"></a>
-<span class="sourceLineNo">163</span>    @Override<a name="line.163"></a>
-<span class="sourceLineNo">164</span>    protected void periodicExecute(final TEnvironment env) {<a name="line.164"></a>
-<span class="sourceLineNo">165</span>      if (completed.isEmpty()) {<a name="line.165"></a>
-<span class="sourceLineNo">166</span>        if (LOG.isTraceEnabled()) {<a name="line.166"></a>
-<span class="sourceLineNo">167</span>          LOG.trace("No completed procedures to cleanup.");<a name="line.167"></a>
-<span class="sourceLineNo">168</span>        }<a name="line.168"></a>
-<span class="sourceLineNo">169</span>        return;<a name="line.169"></a>
-<span class="sourceLineNo">170</span>      }<a name="line.170"></a>
-<span class="sourceLineNo">171</span><a name="line.171"></a>
-<span class="sourceLineNo">172</span>      final long evictTtl = conf.getInt(EVICT_TTL_CONF_KEY, DEFAULT_EVICT_TTL);<a name="line.172"></a>
-<span class="sourceLineNo">173</span>      final long evictAckTtl = conf.getInt(EVICT_ACKED_TTL_CONF_KEY, DEFAULT_ACKED_EVICT_TTL);<a name="line.173"></a>
-<span class="sourceLineNo">174</span>      final int batchSize = conf.getInt(BATCH_SIZE_CONF_KEY, DEFAULT_BATCH_SIZE);<a name="line.174"></a>
+<span class="sourceLineNo">025</span>import java.io.InputStream;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.io.OutputStream;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import java.util.Arrays;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.HashSet;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.Iterator;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.List;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.Map;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.Objects;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.Set;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.concurrent.atomic.AtomicBoolean;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.stream.Collectors;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import java.util.stream.Stream;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import java.util.concurrent.CopyOnWriteArrayList;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import java.util.concurrent.DelayQueue;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import java.util.concurrent.TimeUnit;<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.commons.logging.Log;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.commons.logging.LogFactory;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.conf.Configuration;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HConstants;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.exceptions.IllegalArgumentIOException;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.procedure2.Procedure.LockState;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.procedure2.store.ProcedureStore.ProcedureIterator;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.procedure2.util.DelayedUtil.DelayedWithTimeout;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.procedure2.util.StringUtils;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos.ProcedureState;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.security.User;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.util.NonceKey;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.util.Threads;<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>/**<a name="line.64"></a>
+<span class="sourceLineNo">065</span> * Thread Pool that executes the submitted procedures.<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * The executor has a ProcedureStore associated.<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * Each operation is logged and on restart the pending procedures are resumed.<a name="line.67"></a>
+<span class="sourceLineNo">068</span> *<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * Unless the Procedure code throws an error (e.g. invalid user input)<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * the procedure will complete (at some point in time), On restart the pending<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * procedures are resumed and the once failed will be rolledback.<a name="line.71"></a>
+<span class="sourceLineNo">072</span> *<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * The user can add procedures to the executor via submitProcedure(proc)<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * check for the finished state via isFinished(procId)<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * and get the result via getResult(procId)<a name="line.75"></a>
+<span class="sourceLineNo">076</span> */<a name="line.76"></a>
+<span class="sourceLineNo">077</span>@InterfaceAudience.Private<a name="line.77"></a>
+<span class="sourceLineNo">078</span>@InterfaceStability.Evolving<a name="line.78"></a>
+<span class="sourceLineNo">079</span>public class ProcedureExecutor&lt;TEnvironment&gt; {<a name="line.79"></a>
+<span class="sourceLineNo">080</span>  private static final Log LOG = LogFactory.getLog(ProcedureExecutor.class);<a name="line.80"></a>
+<span class="sourceLineNo">081</span><a name="line.81"></a>
+<span class="sourceLineNo">082</span>  public static final String CHECK_OWNER_SET_CONF_KEY = "hbase.procedure.check.owner.set";<a name="line.82"></a>
+<span class="sourceLineNo">083</span>  private static final boolean DEFAULT_CHECK_OWNER_SET = false;<a name="line.83"></a>
+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span>  public static final String WORKER_KEEP_ALIVE_TIME_CONF_KEY =<a name="line.85"></a>
+<span class="sourceLineNo">086</span>      "hbase.procedure.worker.keep.alive.time.msec";<a name="line.86"></a>
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+<span class="sourceLineNo">089</span>  Testing testing = null;<a name="line.89"></a>
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+<span class="sourceLineNo">148</span>   * NOTE: This is a special case handled in timeoutLoop().<a name="line.148"></a>
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+<span class="sourceLineNo">152</span>   *   procId = master.doOperation()<a name="line.152"></a>
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+<span class="sourceLineNo">154</span>   * &lt;/pre&gt;<a name="line.154"></a>
+<span class="sourceLineNo">155</span>   * The master should not throw away the proc result as soon as the procedure is done<a name="line.155"></a>
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 <span class="sourceLineNo">210</span><a name="line.210"></a>
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-<span class="sourceLineNo">212</span>   * Map the the procId returned by submitProcedure(), the Root-ProcID, to the ProcedureInfo.<a name="line.212"></a>
-<span class="sourceLineNo">213</span>   * Once a Root-Procedure completes (success or failure), the result will be added to this map.<a name="line.213"></a>
-<span class="sourceLineNo">214</span>   * The user of ProcedureExecutor should call getResult(procId) to get the result.<a name="line.214"></a>
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-<span class="sourceLineNo">218</span>  /**<a name="line.218"></a>
-<span class="sourceLineNo">219</span>   * Map the the procId returned by submitProcedure(), the Root-ProcID, to the RootProcedureState.<a name="line.219"></a>
-<span class="sourceLineNo">220</span>   * The RootProcedureState contains the execution stack of the Root-Procedure,<a name="line.220"></a>
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-<span class="sourceLineNo">225</span>  /**<a name="line.225"></a>
-<span class="sourceLineNo">226</span>   * Helper map to lookup the live procedures by ID.<a name="line.226"></a>
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-<span class="sourceLineNo">229</span>  private final ConcurrentHashMap&lt;Long, Procedure&gt; procedures = new ConcurrentHashMap&lt;&gt;();<a name="line.229"></a>
+<span class="sourceLineNo">211</span>      final long now = EnvironmentEdgeManager.currentTime();<a name="line.211"></a>
+<span class="sourceLineNo">212</span>      final Iterator&lt;Map.Entry&lt;Long, CompletedProcedureRetainer&gt;&gt; it = completed.entrySet().iterator();<a name="line.212"></a>
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+<span class="sourceLineNo">217</span>        final Procedure&lt;?&gt; proc = retainer.getProcedure();<a name="line.217"></a>
+<span class="sourceLineNo">218</span><a name="line.218"></a>
+<span class="sourceLineNo">219</span>        // TODO: Select TTL based on Procedure type<a name="line.219"></a>
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+<span class="sourceLineNo">222</span>            LOG.debug("Evict completed " + proc);<a name="line.222"></a>
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 <span class="sourceLineNo">230</span><a name="line.230"></a>
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-<span class="sourceLineNo">232</span>   * Helper map to lookup whether the procedure already issued from the same client.<a name="line.232"></a>
-<span class="sourceLineNo">233</span>   * This map contains every root procedure.<a name="line.233"></a>
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-<span class="sourceLineNo">254</span>  private final AtomicInteger activeExecutorCount = new AtomicInteger(0);<a name="line.254"></a>
-<span class="sourceLineNo">255</span>  private final AtomicBoolean running = new AtomicBoolean(false);<a name="line.255"></a>
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+<span class="sourceLineNo">243</span>  /**<a name="line.243"></a>
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+<span class="sourceLineNo">245</span>   * Once a Root-Procedure completes (success or failure), the result will be added to this map.<a name="line.245"></a>
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+<span class="sourceLineNo">247</span>   */<a name="line.247"></a>
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+<span class="sourceLineNo">250</span>  /**<a name="line.250"></a>
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+<span class="sourceLineNo">254</span>   */<a name="line.254"></a>
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+<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>   * Helper map to lookup the live procedures by ID.<a name="line.258"></a>
+<span class="sourceLineNo">259</span>   * This map contains every procedure. root-procedures and subprocedures.<a name="line.259"></a>
+<span class="sourceLineNo">260</span>   */<a name="line.260"></a>
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+<span class="sourceLineNo">262</span><a name="line.262"></a>
+<span class="sourceLineNo">263</span>  /**<a name="line.263"></a>
+<span class="sourceLineNo">264</span>   * Helper map to lookup whether the procedure already issued from the same client.<a name="line.264"></a>
+<span class="sourceLineNo">265</span>   * This map contains every root procedure.<a name="line.265"></a>
+<span class="sourceLineNo">266</span>   */<a name="line.266"></a>
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+<span class="sourceLineNo">268</span><a name="line.268"></a>
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+<span class="sourceLineNo">279</span>  /**<a name="line.279"></a>
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-<span class="sourceLineNo">405</span>          // add the proc to the scheduler to perform the rollback<a name="line.405"></a>
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-<span class="sourceLineNo">407</span>          break;<a name="line.407"></a>
-<span class="sourceLineNo">408</span>        case ROLLEDBACK:<a name="line.408"></a>
-<span class="sourceLineNo">409</span>        case INITIALIZING:<a name="line.409"></a>
-<span class="sourceLineNo">410</span>          String msg = "Unexpected " + proc.getState() + " state for " + proc;<a name="line.410"></a>
-<span class="sourceLineNo">411</span>          LOG.error(msg);<a name="line.411"></a>
-<span class="sourceLineNo">412</span>          throw new UnsupportedOperationException(msg);<a name="line.412"></a>
-<span class="sourceLineNo">413</span>        default:<a name="line.413"></a>
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-<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>    // 3. Validate the stacks<a name="line.418"></a>
-<span class="sourceLineNo">419</span>    int corruptedCount = 0;<a name="line.419"></a>
-<span class="sourceLineNo">420</span>    Iterator&lt;Map.Entry&lt;Long, RootProcedureState&gt;&gt; itStack = rollbackStack.entrySet().iterator();<a name="line.420"></a>
-<span class="sourceLineNo">421</span>    while (itStack.hasNext()) {<a name="line.421"></a>
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-<span class="sourceLineNo">423</span>      RootProcedureState procStack = entry.getValue();<a name="line.423"></a>
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-<span class="sourceLineNo">425</span><a name="line.425"></a>
-<span class="sourceLineNo">426</span>      for (Procedure proc: procStack.getSubproceduresStack()) {<a name="line.426"></a>
-<span class="sourceLineNo">427</span>        LOG.error("Corrupted " + proc);<a name="line.427"></a>
-<span class="sourceLineNo">428</span>        procedures.remove(proc.getProcId());<a name="line.428"></a>
-<span class="sourceLineNo">429</span>        runnableList.remove(proc);<a name="line.429"></a>
-<span class="sourceLineNo">430</span>        if (waitingSet != null) waitingSet.remove(proc);<a name="line.430"></a>
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-<span class="sourceLineNo">433</span>      itStack.remove();<a name="line.433"></a>
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-<span class="sourceLineNo">435</span><a name="line.435"></a>
-<span class="sourceLineNo">436</span>    if (abortOnCorruption &amp;&amp; corruptedCount &gt; 0) {<a name="line.436"></a>
-<span class="sourceLineNo">437</span>      throw new IOException("found " + corruptedCount + " procedures on replay");<a name="line.437"></a>
-<span class="sourceLineNo">438</span>    }<a name="line.438"></a>
-<span class="sourceLineNo">439</span><a name="line.439"></a>
-<span class="sourceLineNo">440</span>    // 4. Push the procedures to the timeout executor<a name="line.440"></a>
-<span class="sourceLineNo">441</span>    if (waitingSet != null &amp;&amp; !waitingSet.isEmpty()) {<a name="line.441"></a>
-<span class="sourceLineNo">442</span>      for (Procedure proc: waitingSet) {<a name="line.442"></a>
-<span class="sourceLineNo">443</span>        proc.afterReplay(getEnvironment());<a name="line.443"></a>
-<span class="sourceLineNo">444</span>        timeoutExecutor.add(proc);<a name="line.444"></a>
-<span class="sourceLineNo">445</span>      }<a name="line.445"></a>
-<span class="sourceLineNo">446</span>    }<a name="line.446"></a>
-<span class="sourceLineNo">447</span><a name="line.447"></a>
-<span class="sourceLineNo">448</span>    // 5. Push the procedure to the scheduler<a name="line.448"></a>
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-<span class="sourceLineNo">450</span>      // TODO: See ProcedureWALFormatReader#hasFastStartSupport<a name="line.450"></a>
-<span class="sourceLineNo">451</span>      // some procedure may be started way before this stuff.<a name="line.451"></a>
-<span class="sourceLineNo">452</span>      for (int i = runnableList.size() - 1; i &gt;= 0; --i) {<a name="line.452"></a>
-<span class="sourceLineNo">453</span>        Procedure proc = runnableList.get(i);<a name="line.453"></a>
-<span class="sourceLineNo">454</span>        proc.afterReplay(getEnvironment());<a name="line.454"></a>
-<span class="sourceLineNo">455</span>        if (!proc.hasParent()) {<a name="line.455"></a>
-<span class="sourceLineNo">456</span>          sendProcedureLoadedNotification(proc.getProcId());<a name="line.456"></a>
-<span class="sourceLineNo">457</span>        }<a name="line.457"></a>
-<span class="sourceLineNo">458</span>        if (proc.wasExecuted()) {<a name="line.458"></a>
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-<span class="sourceLineNo">460</span>        } else {<a name="line.460"></a>
-<span class="sourceLineNo">461</span>          // if it was not in execution, it can wait.<a name="line.461"></a>
-<span class="sourceLineNo">462</span>          scheduler.addBack(proc);<a name="line.462"></a>
-<span class="sourceLineNo">463</span>        }<a name="line.463"></a>
-<span class="sourceLineNo">464</span>      }<a name="line.464"></a>
+<span class="sourceLineNo">342</span>  private void loadProcedures(final ProcedureIterator procIter,<a name="line.342"></a>
+<span class="sourceLineNo">343</span>      final boolean abortOnCorruption) throws IOException {<a name="line.343"></a>
+<span class="sourceLineNo">344</span>    final boolean debugEnabled = LOG.isDebugEnabled();<a name="line.344"></a>
+<span class="sourceLineNo">345</span><a name="line.345"></a>
+<span class="sourceLineNo">346</span>    // 1. Build the rollback stack<a name="line.346"></a>
+<span class="sourceLineNo">347</span>    int runnablesCount = 0;<a name="line.347"></a>
+<span class="sourceLineNo">348</span>    while (procIter.hasNext()) {<a name="line.348"></a>
+<span class="sourceLineNo">349</span>      boolean finished = procIter.isNextFinished();<a name="line.349"></a>
+<span class="sourceLineNo">350</span>      Procedure proc = procIter.next();<a name="line.350"></a>
+<span class="sourceLineNo">351</span>      NonceKey nonceKey = proc.getNonceKey();<a name="line.351"></a>
+<span class="sourceLineNo">352</span>      long procId = proc.getProcId();<a name="line.352"></a>
+<span class="sourceLineNo">353</span><a name="line.353"></a>
+<span class="sourceLineNo">354</span>      if (finished) {<a name="line.354"></a>
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+<span class="sourceLineNo">356</span>        if (debugEnabled) {<a name="line.356"></a>
+<span class="sourceLineNo">357</span>          LOG.debug("Completed " + proc);<a name="line.357"></a>
+<span class="sourceLineNo">358</span>        }<a name="line.358"></a>
+<span class="sourceLineNo">359</span>      } else {<a name="line.359"></a>
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+<span class="sourceLineNo">362</span>          rollbackStack.put(proc.getProcId(), new RootProcedureState());<a name="line.362"></a>
+<span class="sourceLineNo">363</span>        }<a name="line.363"></a>
+<span class="sourceLineNo">364</span><a name="line.364"></a>
+<span class="sourceLineNo">365</span>        // add the procedure to the map<a name="line.365"></a>
+<span class="sourceLineNo">366</span>        proc.beforeReplay(getEnvironment());<a name="line.366"></a>
+<span class="sourceLineNo">367</span>        procedures.put(proc.getProcId(), proc);<a name="line.367"></a>
+<span class="sourceLineNo">368</span><a name="line.368"></a>
+<span class="sourceLineNo">369</span>        if (proc.getState() == ProcedureState.RUNNABLE) {<a name="line.369"></a>
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+<span class="sourceLineNo">371</span>        }<a name="line.371"></a>
+<span class="sourceLineNo">372</span>      }<a name="line.372"></a>
+<span class="sourceLineNo">373</span><a name="line.373"></a>
+<span class="sourceLineNo">374</span>      // add the nonce to the map<a name="line.374"></a>
+<span class="sourceLineNo">375</span>      if (nonceKey != null) {<a name="line.375"></a>
+<span class="sourceLineNo">376</span>        nonceKeysToProcIdsMap.put(nonceKey, procId);<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      }<a name="line.377"></a>
+<span class="sourceLineNo">378</span>    }<a name="line.378"></a>
+<span class="sourceLineNo">379</span><a name="line.379"></a>
+<span class="sourceLineNo">380</span>    // 2. Initialize the stacks<a name="line.380"></a>
+<span class="sourceLineNo">381</span>    final ArrayList&lt;Procedure&gt; runnableList = new ArrayList(runnablesCount);<a name="line.381"></a>
+<span class="sourceLineNo">382</span>    HashSet&lt;Procedure&gt; waitingSet = null;<a name="line.382"></a>
+<span class="sourceLineNo">383</span>    procIter.reset();<a name="line.383"></a>
+<span class="sourceLineNo">384</span>    while (procIter.hasNext()) {<a name="line.384"></a>
+<span class="sourceLineNo">385</span>      if (procIter.isNextFinished()) {<a name="line.385"></a>
+<span class="sourceLineNo">386</span>        procIter.skipNext();<a name="line.386"></a>
+<span class="sourceLineNo">387</span>        continue;<a name="line.387"></a>
+<span class="sourceLineNo">388</span>      }<a name="line.388"></a>
+<span class="sourceLineNo">389</span><a name="line.389"></a>
+<span class="sourceLineNo">390</span>      Procedure proc = procIter.next();<a name="line.390"></a>
+<span class="sourceLineNo">391</span>      assert !(proc.isFinished() &amp;&amp; !proc.hasParent()) : "unexpected completed proc=" + proc;<a name="line.391"></a>
+<span class="sourceLineNo">392</span><a name="line.392"></a>
+<span class="sourceLineNo">393</span>      if (debugEnabled) {<a name="line.393"></a>
+<span class="sourceLineNo">394</span>        LOG.debug(String.format("Loading %s", proc));<a name="line.394"></a>
+<span class="sourceLineNo">395</span>      }<a name="line.395"></a>
+<span class="sourceLineNo">396</span><a name="line.396"></a>
+<span class="sourceLineNo">397</span>      Long rootProcId = getRootProcedureId(proc);<a name="line.397"></a>
+<span class="sourceLineNo">398</span>      if (rootProcId == null) {<a name="line.398"></a>
+<span class="sourceLineNo">399</span>        // The 'proc' was ready to run but the root procedure was rolledback?<a name="line.399"></a>
+<span class="sourceLineNo">400</span>        scheduler.addBack(proc);<a name="line.400"></a>
+<span class="sourceLineNo">401</span>        continue;<a name="line.401"></a>
+<span class="sourceLineNo">402</span>      }<a name="line.402"></a>
+<span class="sourceLineNo">403</span><a name="line.403"></a>
+<span class="sourceLineNo">404</span>      if (proc.hasParent()) {<a name="line.404"></a>
+<span class="sourceLineNo">405</span>        Procedure parent = procedures.get(proc.getParentProcId());<a name="line.405"></a>
+<span class="sourceLineNo">406</span>        // corrupted procedures are handled later at step 3<a name="line.406"></a>
+<span class="sourceLineNo">407</span>        if (parent != null &amp;&amp; !proc.isFinished()) {<a name="line.407"></a>
+<span class="sourceLineNo">408</span>          parent.incChildrenLatch();<a name="line.408"></a>
+<span class="sourceLineNo">409</span>        }<a name="line.409"></a>
+<span class="sourceLineNo">410</span>      }<a name="line.410"></a>
+<span class="sourceLineNo">411</span><a name="line.411"></a>
+<span class="sourceLineNo">412</span>      RootProcedureState procStack = rollbackStack.get(rootProcId);<a name="line.412"></a>
+<span class="sourceLineNo">413</span>      procStack.loadStack(proc);<a name="line.413"></a>
+<span class="sourceLineNo">414</span><a name="line.414"></a>
+<span class="sourceLineNo">415</span>      proc.setRootProcId(rootProcId);<a name="line.415"></a>
+<span class="sourceLineNo">416</span>      switch (proc.getState()) {<a name="line.416"></a>
+<span class="sourceLineNo">417</span>        case RUNNABLE:<a name="line.417"></a>
+<span class="sourceLineNo">418</span>          runnableList.add(proc);<a name="line.418"></a>
+<span class="sourceLineNo">419</span>          break;<a name="line.419"></a>
+<span class="sourceLineNo">420</span>        case WAITING:<a name="line.420"></a>
+<span class="sourceLineNo">421</span>          if (!proc.hasChildren()) {<a name="line.421"></a>
+<span class="sourceLineNo">422</span>            runnableList.add(proc);<a name="line.422"></a>
+<span class="sourceLineNo">423</span>          }<a name="line.423"></a>
+<span class="sourceLineNo">424</span>          break;<a name="line.424"></a>
+<span class="sourceLineNo">425</span>        case WAITING_TIMEOUT:<a name="line.425"></a>
+<span class="sourceLineNo">426</span>          if (waitingSet == null) {<a name="line.426"></a>
+<span class="sourceLineNo">427</span>            waitingSet = new HashSet&lt;&gt;();<a name="line.427"></a>
+<span class="sourceLineNo">428</span>          }<a name="line.428"></a>
+<span class="sourceLineNo">429</span>          waitingSet.add(proc);<a name="line.429"></a>
+<span class="sourceLineNo">430</span>          break;<a name="line.430"></a>
+<span class="sourceLineNo">431</span>        case FAILED:<a name="line.431"></a>
+<span class="sourceLineNo">432</span>          // add the proc to the scheduler to perform the rollback<a name="line.432"></a>
+<span class="sourceLineNo">433</span>          scheduler.addBack(proc);<a name="line.433"></a>
+<span class="sourceLineNo">434</span>          break;<a name="line.434"></a>
+<span class="sourceLineNo">435</span>        case ROLLEDBACK:<a name="line.435"></a>
+<span class="sourceLineNo">436</span>        case INITIALIZING:<a name="line.436"></a>
+<span class="sourceLineNo">437</span>          String msg = "Unexpected " + proc.getState() + " state for " + proc;<a name="line.437"></a>
+<span class="sourceLineNo">438</span>          LOG.error(msg);<a name="line.438"></a>
+<span class="sourceLineNo">439</span>          throw new UnsupportedOperationException(msg);<a name="line.439"></a>
+<span class="sourceLineNo">440</span>        default:<a name="line.440"></a>
+<span class="sourceLineNo">441</span>          break;<a name="line.441"></a>
+<span class="sourceLineNo">442</span>      }<a name="line.442"></a>
+<span class="sourceLineNo">443</span>    }<a name="line.443"></a>
+<span class="sourceLineNo">444</span><a name="line.444"></a>
+<span class="sourceLineNo">445</span>    // 3. Validate the stacks<a name="line.445"></a>
+<span class="sourceLineNo">446</span>    int corruptedCount = 0;<a name="line.446"></a>
+<span class="sourceLineNo">447</span>    Iterator&lt;Map.Entry&lt;Long, RootProcedureState&gt;&gt; itStack = rollbackStack.entrySet().iterator();<a name="line.447"></a>
+<span class="sourceLineNo">448</span>    while (itStack.hasNext()) {<a name="line.448"></a>
+<span class="sourceLineNo">449</span>      Map.Entry&lt;Long, RootProcedureState&gt; entry = itStack.next();<a name="line.449"></a>
+<span class="sourceLineNo">450</span>      RootProcedureState procStack = entry.getValue();<a name="line.450"></a>
+<span class="sourceLineNo">451</span>      if (procStack.isValid()) continue;<a name="line.451"></a>
+<span class="sourceLineNo">452</span><a name="line.452"></a>
+<span class="sourceLineNo">453</span>      for (Procedure proc: procStack.getSubproceduresStack()) {<a name="line.453"></a>
+<span class="sourceLineNo">454</span>        LOG.error("Corrupted " + proc);<a name="line.454"></a>
+<span class="sourceLineNo">455</span>        procedures.remove(proc.getProcId());<a name="line.455"></a>
+<span class="sourceLineNo">456</span>        runnableList.remove(proc);<a name="line.456"></a>
+<span class="sourceLineNo">457</span>        if (waitingSet != null) waitingSet.remove(proc);<a name="line.457"></a>
+<span class="sourceLineNo">458</span>        corruptedCount++;<a name="line.458"></a>
+<span class="sourceLineNo">459</span>      }<a name="line.459"></a>
+<span class="sourceLineNo">460</span>      itStack.remove();<a name="line.460"></a>
+<span class="sourceLineNo">461</span>    }<a name="line.461"></a>
+<span class="sourceLineNo">462</span><a name="line.462"></a>
+<span class="sourceLineNo">463</span>    if (abortOnCorruption &amp;&amp; corruptedCount &gt; 0) {<a name="line.463"></a>
+<span class="sourceLineNo">464</span>      throw new IOException("found " + corruptedCount + " procedures on replay");<a name="line.464"></a>
 <span class="sourceLineNo">465</span>    }<a name="line.465"></a>
-<span class="sourceLineNo">466</span>  }<a name="line.466"></a>
-<span class="sourceLineNo">467</span><a name="line.467"></a>
-<span class="sourceLineNo">468</span>  /**<a name="line.468"></a>
-<span class="sourceLineNo">469</span>   * Start the procedure executor.<a name="line.469"></a>
-<span class="sourceLineNo">470</span>   * It calls ProcedureStore.recoverLease() and ProcedureStore.load() to<a name="line.470"></a>
-<span class="sourceLineNo">471</span>   * recover the lease, and ensure a single executor, and start the procedure<a name="line.471"></a>
-<span class="sourceLineNo">472</span>   * replay to resume and recover the previous pending and in-progress perocedures.<a name="line.472"></a>
-<span class="sourceLineNo">473</span>   *<a name="line.473"></a>
-<span class="sourceLineNo">474</span>   * @param numThreads number of threads available for procedure execution.<a name="line.474"></a>
-<span class="sourceLineNo">475</span>   *

<TRUNCATED>

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