http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2d5075d7/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.LockState.html
----------------------------------------------------------------------
diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.LockState.html
b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.LockState.html
index f7fa6c8..b83924f 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.LockState.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/Procedure.LockState.html
@@ -191,7 +191,7 @@
<span class="sourceLineNo">183</span> * A lock can be anything, and it is up
to the implementor. The Procedure<a name="line.183"></a>
<span class="sourceLineNo">184</span> * Framework will call this method just
before it invokes {@link #execute(Object)}.<a name="line.184"></a>
<span class="sourceLineNo">185</span> * It calls {@link
#releaseLock(Object)} after the call to execute.<a name="line.185"></a>
-<span class="sourceLineNo">186</span> * <a name="line.186"></a>
+<span class="sourceLineNo">186</span> *<a name="line.186"></a>
<span class="sourceLineNo">187</span> * <p>If you need to hold the
lock for the life of the Procdure -- i.e. you do not<a name="line.187"></a>
<span class="sourceLineNo">188</span> * want any other Procedure interfering
while this Procedure is running, see<a name="line.188"></a>
<span class="sourceLineNo">189</span> * {@link #holdLock(Object)}.<a
name="line.189"></a>
@@ -474,461 +474,465 @@
<span class="sourceLineNo">466</span> return rootProcId;<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>
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name="line.469"></a>
-<span class="sourceLineNo">470</span> return nonceKey;<a
name="line.470"></a>
+<span class="sourceLineNo">469</span> public String getProcName() {<a
name="line.469"></a>
+<span class="sourceLineNo">470</span> return toStringClass();<a
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<span class="sourceLineNo">471</span> }<a name="line.471"></a>
<span class="sourceLineNo">472</span><a name="line.472"></a>
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-<span class="sourceLineNo">474</span> return submittedTime;<a
name="line.474"></a>
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name="line.473"></a>
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<span class="sourceLineNo">475</span> }<a name="line.475"></a>
<span class="sourceLineNo">476</span><a name="line.476"></a>
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name="line.477"></a>
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name="line.482"></a>
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name="line.481"></a>
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assign the ID to the newly created procedure.<a name="line.486"></a>
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name="line.493"></a>
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==========================================================================<a
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==========================================================================<a
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name="line.549"></a>
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assign the ID to the newly created procedure.<a name="line.490"></a>
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procId) {<a name="line.494"></a>
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name="line.497"></a>
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==========================================================================<a
name="line.542"></a>
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+<span class="sourceLineNo">544</span> //
==========================================================================<a
name="line.544"></a>
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==============================================================================================<a
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==============================================================================================<a
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a RUNNABLE state.<a name="line.626"></a>
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isInitializing() {<a name="line.632"></a>
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name="line.580"></a>
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the procedure has timeout set and<a name="line.586"></a>
+<span class="sourceLineNo">587</span> * the procedure is in the waiting
queue.<a name="line.587"></a>
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timeout.<a name="line.588"></a>
+<span class="sourceLineNo">589</span> */<a name="line.589"></a>
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name="line.590"></a>
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getTimeout();<a name="line.592"></a>
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==========================================================================<a
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==========================================================================<a
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last update and the start time of the procedure.<a name="line.599"></a>
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getSubmittedTime();<a name="line.602"></a>
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any, otherwise null<a name="line.606"></a>
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name="line.608"></a>
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+<span class="sourceLineNo">611</span><a name="line.611"></a>
+<span class="sourceLineNo">612</span> /**<a name="line.612"></a>
+<span class="sourceLineNo">613</span> * The procedure may leave a "result"
on completion.<a name="line.613"></a>
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that will be passed to the client<a name="line.614"></a>
+<span class="sourceLineNo">615</span> */<a name="line.615"></a>
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result) {<a name="line.616"></a>
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==============================================================================================<a
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set states, or some Procecedure may<a name="line.624"></a>
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concurrent updates. we use synchronized here<a name="line.625"></a>
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+<span class="sourceLineNo">627</span> //
==============================================================================================<a
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a RUNNABLE state.<a name="line.630"></a>
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isRunnable() {<a name="line.632"></a>
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ProcedureState.RUNNABLE;<a name="line.633"></a>
<span class="sourceLineNo">634</span> }<a name="line.634"></a>
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source, final Throwable cause) {<a name="line.684"></a>
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RemoteProcedureException(source, cause));<a name="line.685"></a>
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isInitializing() {<a name="line.636"></a>
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failed. It may or may not have rolled back.<a name="line.641"></a>
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{<a name="line.643"></a>
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|| state == ProcedureState.ROLLEDBACK;<a name="line.644"></a>
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+<span class="sourceLineNo">647</span> /**<a name="line.647"></a>
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finished successfully.<a name="line.648"></a>
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{<a name="line.650"></a>
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ProcedureState.SUCCESS && !hasException();<a name="line.651"></a>
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finished. The Procedure may be completed successfully or<a name="line.655"></a>
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+<span class="sourceLineNo">657</span> */<a name="line.657"></a>
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isFinished() {<a name="line.658"></a>
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ProcedureState.ROLLEDBACK;<a name="line.659"></a>
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+<span class="sourceLineNo">662</span> /**<a name="line.662"></a>
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waiting for a child to finish or for an external event.<a name="line.663"></a>
+<span class="sourceLineNo">664</span> */<a name="line.664"></a>
+<span class="sourceLineNo">665</span> public synchronized boolean isWaiting()
{<a name="line.665"></a>
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name="line.666"></a>
+<span class="sourceLineNo">667</span> case WAITING:<a name="line.667"></a>
+<span class="sourceLineNo">668</span> case WAITING_TIMEOUT:<a
name="line.668"></a>
+<span class="sourceLineNo">669</span> return true;<a
name="line.669"></a>
+<span class="sourceLineNo">670</span> default:<a name="line.670"></a>
+<span class="sourceLineNo">671</span> break;<a name="line.671"></a>
+<span class="sourceLineNo">672</span> }<a name="line.672"></a>
+<span class="sourceLineNo">673</span> return false;<a name="line.673"></a>
+<span class="sourceLineNo">674</span> }<a name="line.674"></a>
+<span class="sourceLineNo">675</span><a name="line.675"></a>
+<span class="sourceLineNo">676</span> @VisibleForTesting<a
name="line.676"></a>
+<span class="sourceLineNo">677</span> @InterfaceAudience.Private<a
name="line.677"></a>
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setState(final ProcedureState state) {<a name="line.678"></a>
+<span class="sourceLineNo">679</span> this.state = state;<a
name="line.679"></a>
+<span class="sourceLineNo">680</span> updateTimestamp();<a
name="line.680"></a>
+<span class="sourceLineNo">681</span> }<a name="line.681"></a>
+<span class="sourceLineNo">682</span><a name="line.682"></a>
+<span class="sourceLineNo">683</span> @InterfaceAudience.Private<a
name="line.683"></a>
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getState() {<a name="line.684"></a>
+<span class="sourceLineNo">685</span> return state;<a name="line.685"></a>
<span class="sourceLineNo">686</span> }<a name="line.686"></a>
<span class="sourceLineNo">687</span><a name="line.687"></a>
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setFailure(final RemoteProcedureException exception) {<a name="line.688"></a>
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name="line.691"></a>
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String source, final String msg) {<a name="line.695"></a>
-<span class="sourceLineNo">696</span> setFailure(source, new
ProcedureAbortedException(msg));<a name="line.696"></a>
+<span class="sourceLineNo">688</span> protected void setFailure(final String
source, final Throwable cause) {<a name="line.688"></a>
+<span class="sourceLineNo">689</span> setFailure(new
RemoteProcedureException(source, cause));<a name="line.689"></a>
+<span class="sourceLineNo">690</span> }<a name="line.690"></a>
+<span class="sourceLineNo">691</span><a name="line.691"></a>
+<span class="sourceLineNo">692</span> protected synchronized void
setFailure(final RemoteProcedureException exception) {<a name="line.692"></a>
+<span class="sourceLineNo">693</span> this.exception = exception;<a
name="line.693"></a>
+<span class="sourceLineNo">694</span> if (!isFinished()) {<a
name="line.694"></a>
+<span class="sourceLineNo">695</span> setState(ProcedureState.FAILED);<a
name="line.695"></a>
+<span class="sourceLineNo">696</span> }<a name="line.696"></a>
<span class="sourceLineNo">697</span> }<a name="line.697"></a>
<span class="sourceLineNo">698</span><a name="line.698"></a>
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handle the timeout as abort,<a name="line.701"></a>
-<span class="sourceLineNo">702</span> * false in case the procedure
handled the timeout itself.<a name="line.702"></a>
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TimeoutIOException(<a name="line.707"></a>
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hasException() {<a name="line.714"></a>
-<span class="sourceLineNo">715</span> return exception != null;<a
name="line.715"></a>
+<span class="sourceLineNo">699</span> protected void setAbortFailure(final
String source, final String msg) {<a name="line.699"></a>
+<span class="sourceLineNo">700</span> setFailure(source, new
ProcedureAbortedException(msg));<a name="line.700"></a>
+<span class="sourceLineNo">701</span> }<a name="line.701"></a>
+<span class="sourceLineNo">702</span><a name="line.702"></a>
+<span class="sourceLineNo">703</span> /**<a name="line.703"></a>
+<span class="sourceLineNo">704</span> * Called by the ProcedureExecutor when
the timeout set by setTimeout() is expired.<a name="line.704"></a>
+<span class="sourceLineNo">705</span> * @return true to let the framework
handle the timeout as abort,<a name="line.705"></a>
+<span class="sourceLineNo">706</span> * false in case the procedure
handled the timeout itself.<a name="line.706"></a>
+<span class="sourceLineNo">707</span> */<a name="line.707"></a>
+<span class="sourceLineNo">708</span> protected synchronized boolean
setTimeoutFailure(final TEnvironment env) {<a name="line.708"></a>
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ProcedureState.WAITING_TIMEOUT) {<a name="line.709"></a>
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EnvironmentEdgeManager.currentTime() - lastUpdate;<a name="line.710"></a>
+<span class="sourceLineNo">711</span> setFailure("ProcedureExecutor", new
TimeoutIOException(<a name="line.711"></a>
+<span class="sourceLineNo">712</span> "Operation timed out after " +
StringUtils.humanTimeDiff(timeDiff)));<a name="line.712"></a>
+<span class="sourceLineNo">713</span> return true;<a name="line.713"></a>
+<span class="sourceLineNo">714</span> }<a name="line.714"></a>
+<span class="sourceLineNo">715</span> return false;<a name="line.715"></a>
<span class="sourceLineNo">716</span> }<a name="line.716"></a>
<span class="sourceLineNo">717</span><a name="line.717"></a>
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RemoteProcedureException getException() {<a name="line.718"></a>
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name="line.719"></a>
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hasException() {<a name="line.718"></a>
+<span class="sourceLineNo">719</span> return exception != null;<a
name="line.719"></a>
<span class="sourceLineNo">720</span> }<a name="line.720"></a>
<span class="sourceLineNo">721</span><a name="line.721"></a>
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name="line.725"></a>
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name="line.727"></a>
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name="line.728"></a>
-<span class="sourceLineNo">729</span> LOG.trace("CHILD LATCH INCREMENT
SET " +<a name="line.729"></a>
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Throwable(this.toString()));<a name="line.730"></a>
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==========================================================================<a
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ProcedureExecutor<a name="line.830"></a>
-<span class="sourceLineNo">831</span> //
==========================================================================<a
name="line.831"></a>
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RemoteProcedureException getException() {<a name="line.722"></a>
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name="line.723"></a>
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name="line.729"></a>
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setChildrenLatch(final int numChildren) {<a name="line.730"></a>
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name="line.732"></a>
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SET " +<a name="line.733"></a>
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incChildrenLatch() {<a name="line.742"></a>
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notify that one of the sub-procedures has completed.<a name="line.751"></a>
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name="line.753"></a>
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childrenCountDown() {<a name="line.754"></a>
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name="line.757"></a>
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+<span class="sourceLineNo">759</span> }<a name="line.759"></a>
+<span class="sourceLineNo">760</span> return b;<a name="line.760"></a>
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+<span class="sourceLineNo">762</span><a name="line.762"></a>
+<span class="sourceLineNo">763</span> /**<a name="line.763"></a>
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subprocedures/children are done.<a name="line.765"></a>
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procedure to RUNNABLE state.<a name="line.766"></a>
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name="line.768"></a>
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it returns true for WAITING and WAITING_TIMEOUT<a name="line.769"></a>
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setState(ProcedureState.RUNNABLE);<a name="line.771"></a>
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getChildrenLatch() {<a name="line.781"></a>
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stackIndexes.length > 1) {<a name="line.802"></a>
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name="line.806"></a>
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wasExecuted() {<a name="line.824"></a>
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name="line.825"></a>
+<span class="sourceLineNo">826</span> }<a name="line.826"></a>
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+<span class="sourceLineNo">828</span> @InterfaceAudience.Private<a
name="line.828"></a>
+<span class="sourceLineNo">829</span> protected synchronized int[]
getStackIndexes() {<a name="line.829"></a>
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name="line.830"></a>
+<span class="sourceLineNo">831</span> }<a name="line.831"></a>
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ProcedureExecutor that starts the user-level code releaseLock().<a
name="line.872"></a>
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other.getProcId());<a name="line.881"></a>
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==========================================================================<a
name="line.884"></a>
-<span class="sourceLineNo">885</span> // misc utils<a name="line.885"></a>
-<span class="sourceLineNo">886</span> //
==========================================================================<a
name="line.886"></a>
+<span class="sourceLineNo">833</span> //
==========================================================================<a
name="line.833"></a>
+<span class="sourceLineNo">834</span> // Internal methods - called by the
ProcedureExecutor<a name="line.834"></a>
+<span class="sourceLineNo">835</span> //
==========================================================================<a
name="line.835"></a>
+<span class="sourceLineNo">836</span><a name="line.836"></a>
+<span class="sourceLineNo">837</span> /**<a name="line.837"></a>
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ProcedureExecutor that starts the user-level code execute().<a
name="line.838"></a>
+<span class="sourceLineNo">839</span> * @throws ProcedureSuspendedException
This is used when procedure wants to halt processing and<a name="line.839"></a>
+<span class="sourceLineNo">840</span> * skip out without changing states or
releasing any locks held.<a name="line.840"></a>
+<span class="sourceLineNo">841</span> */<a name="line.841"></a>
+<span class="sourceLineNo">842</span> @InterfaceAudience.Private<a
name="line.842"></a>
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Procedure<TEnvironment>[] doExecute(final TEnvironment env)<a
name="line.843"></a>
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ProcedureSuspendedException, InterruptedException {<a name="line.844"></a>
+<span class="sourceLineNo">845</span> try {<a name="line.845"></a>
+<span class="sourceLineNo">846</span> updateTimestamp();<a
name="line.846"></a>
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name="line.847"></a>
+<span class="sourceLineNo">848</span> } finally {<a name="line.848"></a>
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name="line.849"></a>
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+<span class="sourceLineNo">852</span><a name="line.852"></a>
+<span class="sourceLineNo">853</span> /**<a name="line.853"></a>
+<span class="sourceLineNo">854</span> * Internal method called by the
ProcedureExecutor that starts the user-level code rollback().<a
name="line.854"></a>
+<span class="sourceLineNo">855</span> */<a name="line.855"></a>
+<span class="sourceLineNo">856</span> @InterfaceAudience.Private<a
name="line.856"></a>
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TEnvironment env)<a name="line.857"></a>
+<span class="sourceLineNo">858</span> throws IOException,
InterruptedException {<a name="line.858"></a>
+<span class="sourceLineNo">859</span> try {<a name="line.859"></a>
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name="line.860"></a>
+<span class="sourceLineNo">861</span> rollback(env);<a
name="line.861"></a>
+<span class="sourceLineNo">862</span> } finally {<a name="line.862"></a>
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name="line.863"></a>
+<span class="sourceLineNo">864</span> }<a name="line.864"></a>
+<span class="sourceLineNo">865</span> }<a name="line.865"></a>
+<span class="sourceLineNo">866</span><a name="line.866"></a>
+<span class="sourceLineNo">867</span> /**<a name="line.867"></a>
+<span class="sourceLineNo">868</span> * Internal method called by the
ProcedureExecutor that starts the user-level code acquireLock().<a
name="line.868"></a>
+<span class="sourceLineNo">869</span> */<a name="line.869"></a>
+<span class="sourceLineNo">870</span> @InterfaceAudience.Private<a
name="line.870"></a>
+<span class="sourceLineNo">871</span> protected LockState doAcquireLock(final
TEnvironment env) {<a name="line.871"></a>
+<span class="sourceLineNo">872</span> return acquireLock(env);<a
name="line.872"></a>
+<span class="sourceLineNo">873</span> }<a name="line.873"></a>
+<span class="sourceLineNo">874</span><a name="line.874"></a>
+<span class="sourceLineNo">875</span> /**<a name="line.875"></a>
+<span class="sourceLineNo">876</span> * Internal method called by the
ProcedureExecutor that starts the user-level code releaseLock().<a
name="line.876"></a>
+<span class="sourceLineNo">877</span> */<a name="line.877"></a>
+<span class="sourceLineNo">878</span> @InterfaceAudience.Private<a
name="line.878"></a>
+<span class="sourceLineNo">879</span> protected void doReleaseLock(final
TEnvironment env) {<a name="line.879"></a>
+<span class="sourceLineNo">880</span> releaseLock(env);<a
name="line.880"></a>
+<span class="sourceLineNo">881</span> }<a name="line.881"></a>
+<span class="sourceLineNo">882</span><a name="line.882"></a>
+<span class="sourceLineNo">883</span> @Override<a name="line.883"></a>
+<span class="sourceLineNo">884</span> public int compareTo(final
Procedure<TEnvironment> other) {<a name="line.884"></a>
+<span class="sourceLineNo">885</span> return Long.compare(getProcId(),
other.getProcId());<a name="line.885"></a>
+<span class="sourceLineNo">886</span> }<a name="line.886"></a>
<span class="sourceLineNo">887</span><a name="line.887"></a>
-<span class="sourceLineNo">888</span> /**<a name="line.888"></a>
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Procedure ID<a name="line.889"></a>
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specified procId<a name="line.890"></a>
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getProcIdHashCode(final long procId) {<a name="line.892"></a>
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name="line.893"></a>
-<span class="sourceLineNo">894</span> h ^= h >> 16;<a
name="line.894"></a>
-<span class="sourceLineNo">895</span> h *= 0x85ebca6b;<a
name="line.895"></a>
-<span class="sourceLineNo">896</span> h ^= h >> 13;<a
name="line.896"></a>
-<span class="sourceLineNo">897</span> h *= 0xc2b2ae35;<a
name="line.897"></a>
+<span class="sourceLineNo">888</span> //
==========================================================================<a
name="line.888"></a>
+<span class="sourceLineNo">889</span> // misc utils<a name="line.889"></a>
+<span class="sourceLineNo">890</span> //
==========================================================================<a
name="line.890"></a>
+<span class="sourceLineNo">891</span><a name="line.891"></a>
+<span class="sourceLineNo">892</span> /**<a name="line.892"></a>
+<span class="sourceLineNo">893</span> * Get an hashcode for the specified
Procedure ID<a name="line.893"></a>
+<span class="sourceLineNo">894</span> * @return the hashcode for the
specified procId<a name="line.894"></a>
+<span class="sourceLineNo">895</span> */<a name="line.895"></a>
+<span class="sourceLineNo">896</span> public static long
getProcIdHashCode(final long procId) {<a name="line.896"></a>
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name="line.897"></a>
<span class="sourceLineNo">898</span> h ^= h >> 16;<a
name="line.898"></a>
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ID given a specified procedure.<a name="line.903"></a>
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getRootProcedureId(final Map<Long, Procedure> procedures,<a
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name="line.907"></a>
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name="line.908"></a>
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procedures.get(proc.getParentProcId());<a name="line.909"></a>
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compared.<a name="line.916"></a>
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compared.<a name="line.917"></a>
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haveSameParent(final Procedure<?> a, final Procedure<?> b) {<a
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b.hasParent() && (a.getParentProcId() == b.getParentProcId());<a
name="line.921"></a>
-<span class="sourceLineNo">922</span> }<a name="line.922"></a>
-<span class="sourceLineNo">923</span>}<a name="line.923"></a>
+<span class="sourceLineNo">899</span> h *= 0x85ebca6b;<a
name="line.899"></a>
+<span class="sourceLineNo">900</span> h ^= h >> 13;<a
name="line.900"></a>
+<span class="sourceLineNo">901</span> h *= 0xc2b2ae35;<a
name="line.901"></a>
+<span class="sourceLineNo">902</span> h ^= h >> 16;<a
name="line.902"></a>
+<span class="sourceLineNo">903</span> return h;<a name="line.903"></a>
+<span class="sourceLineNo">904</span> }<a name="line.904"></a>
+<span class="sourceLineNo">905</span><a name="line.905"></a>
+<span class="sourceLineNo">906</span> /*<a name="line.906"></a>
+<span class="sourceLineNo">907</span> * Helper to lookup the root Procedure
ID given a specified procedure.<a name="line.907"></a>
+<span class="sourceLineNo">908</span> */<a name="line.908"></a>
+<span class="sourceLineNo">909</span> @InterfaceAudience.Private<a
name="line.909"></a>
+<span class="sourceLineNo">910</span> protected static Long
getRootProcedureId(final Map<Long, Procedure> procedures,<a
name="line.910"></a>
+<span class="sourceLineNo">911</span> Procedure<?> proc) {<a
name="line.911"></a>
+<span class="sourceLineNo">912</span> while (proc.hasParent()) {<a
name="line.912"></a>
+<span class="sourceLineNo">913</span> proc =
procedures.get(proc.getParentProcId());<a name="line.913"></a>
+<span class="sourceLineNo">914</span> if (proc == null) return null;<a
name="line.914"></a>
+<span class="sourceLineNo">915</span> }<a name="line.915"></a>
+<span class="sourceLineNo">916</span> return proc.getProcId();<a
name="line.916"></a>
+<span class="sourceLineNo">917</span> }<a name="line.917"></a>
+<span class="sourceLineNo">918</span><a name="line.918"></a>
+<span class="sourceLineNo">919</span> /**<a name="line.919"></a>
+<span class="sourceLineNo">920</span> * @param a the first procedure to be
compared.<a name="line.920"></a>
+<span class="sourceLineNo">921</span> * @param b the second procedure to be
compared.<a name="line.921"></a>
+<span class="sourceLineNo">922</span> * @return true if the two procedures
have the same parent<a name="line.922"></a>
+<span class="sourceLineNo">923</span> */<a name="line.923"></a>
+<span class="sourceLineNo">924</span> public static boolean
haveSameParent(final Procedure<?> a, final Procedure<?> b) {<a
name="line.924"></a>
+<span class="sourceLineNo">925</span> return a.hasParent() &&
b.hasParent() && (a.getParentProcId() == b.getParentProcId());<a
name="line.925"></a>
+<span class="sourceLineNo">926</span> }<a name="line.926"></a>
+<span class="sourceLineNo">927</span>}<a name="line.927"></a>
