Repository: hbase
Updated Branches:
  refs/heads/branch-2.0 32a396fd1 -> fef4fb36b


HBASE-21323 Should not skip force updating for a sub procedure even if it has 
been finished


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/fef4fb36
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/fef4fb36
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/fef4fb36

Branch: refs/heads/branch-2.0
Commit: fef4fb36bfbc09d09809dfbafbad16b7284ea833
Parents: 32a396f
Author: zhangduo <[email protected]>
Authored: Wed Oct 17 20:51:19 2018 +0800
Committer: Duo Zhang <[email protected]>
Committed: Thu Oct 18 14:46:04 2018 +0800

----------------------------------------------------------------------
 .../hbase/procedure2/ProcedureExecutor.java     |  9 +++++-
 .../store/wal/TestForceUpdateProcedure.java     | 33 ++++++++++++++++++--
 2 files changed, 39 insertions(+), 3 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/fef4fb36/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
----------------------------------------------------------------------
diff --git 
a/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
 
b/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
index a20ae82..b1f6900 100644
--- 
a/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
+++ 
b/hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
@@ -368,6 +368,11 @@ public class ProcedureExecutor<TEnvironment> {
     this(conf, environment, store, new SimpleProcedureScheduler());
   }
 
+  private boolean isRootFinished(Procedure<?> proc) {
+    Procedure<?> rootProc = procedures.get(proc.getRootProcId());
+    return rootProc == null || rootProc.isFinished();
+  }
+
   private void forceUpdateProcedure(long procId) throws IOException {
     IdLock.Entry lockEntry = procExecutionLock.getLockEntry(procId);
     try {
@@ -376,7 +381,9 @@ public class ProcedureExecutor<TEnvironment> {
         LOG.debug("No pending procedure with id = {}, skip force updating.", 
procId);
         return;
       }
-      if (proc.isFinished()) {
+      // For a sub procedure which root parent has not been finished, we still 
need to retain the
+      // wal even if the procedure itself is finished.
+      if (proc.isFinished() && (!proc.hasParent() || isRootFinished(proc))) {
         LOG.debug("Procedure {} has already been finished, skip force 
updating.", proc);
         return;
       }

http://git-wip-us.apache.org/repos/asf/hbase/blob/fef4fb36/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestForceUpdateProcedure.java
----------------------------------------------------------------------
diff --git 
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestForceUpdateProcedure.java
 
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestForceUpdateProcedure.java
index 1e27158..eb68955 100644
--- 
a/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestForceUpdateProcedure.java
+++ 
b/hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/store/wal/TestForceUpdateProcedure.java
@@ -123,7 +123,34 @@ public class TestForceUpdateProcedure {
     @Override
     protected Procedure<Void>[] execute(Void env)
         throws ProcedureYieldException, ProcedureSuspendedException, 
InterruptedException {
-      return new Procedure[] { new WaitingProcedure() };
+      return new Procedure[] { new DummyProcedure(), new WaitingProcedure() };
+    }
+
+    @Override
+    protected void rollback(Void env) throws IOException, InterruptedException 
{
+      throw new UnsupportedOperationException();
+    }
+
+    @Override
+    protected boolean abort(Void env) {
+      return false;
+    }
+
+    @Override
+    protected void serializeStateData(ProcedureStateSerializer serializer) 
throws IOException {
+    }
+
+    @Override
+    protected void deserializeStateData(ProcedureStateSerializer serializer) 
throws IOException {
+    }
+  }
+
+  public static final class DummyProcedure extends Procedure<Void> {
+
+    @Override
+    protected Procedure<Void>[] execute(Void env)
+        throws ProcedureYieldException, ProcedureSuspendedException, 
InterruptedException {
+      return null;
     }
 
     @Override
@@ -209,10 +236,12 @@ public class TestForceUpdateProcedure {
     Map<Class<?>, Procedure<Void>> procMap = new HashMap<>();
     EXEC.getProcedures().stream().filter(p -> !p.isFinished())
       .forEach(p -> procMap.put(p.getClass(), p));
-    assertEquals(2, procMap.size());
+    assertEquals(3, procMap.size());
     ParentProcedure parentProc = (ParentProcedure) 
procMap.get(ParentProcedure.class);
     assertEquals(ProcedureState.WAITING, parentProc.getState());
     WaitingProcedure waitingProc = (WaitingProcedure) 
procMap.get(WaitingProcedure.class);
     assertEquals(ProcedureState.WAITING_TIMEOUT, waitingProc.getState());
+    DummyProcedure dummyProc = (DummyProcedure) 
procMap.get(DummyProcedure.class);
+    assertEquals(ProcedureState.SUCCESS, dummyProc.getState());
   }
 }

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