HBASE-21437 Bypassed procedure throw IllegalArgumentException when its state is WAITING_TIMEOUT

Signed-off-by: Allan Yang <allan163@apache.org>

hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java

@@ -967,17 +967,25 @@ public class ProcedureExecutor<TEnvironment> {
         store.update(procedure);
       }
 
-      // If we don't have the lock, we can't re-submit the queue,
-      // since it is already executing. To get rid of the stuck situation, we
-      // need to restart the master. With the procedure set to bypass, the procedureExecutor
-      // will bypass it and won't get stuck again.
-      if (lockEntry != null) {
-        // add the procedure to run queue,
+      // If state of procedure is WAITING_TIMEOUT, we can directly submit it to the scheduler.
+      // Instead we should remove it from timeout Executor queue and tranfer its state to RUNNABLE
+      if (procedure.getState() == ProcedureState.WAITING_TIMEOUT) {
+        LOG.debug("transform procedure {} from WAITING_TIMEOUT to RUNNABLE", procedure);
+        if (timeoutExecutor.remove(procedure)) {
+          LOG.debug("removed procedure {} from timeoutExecutor", procedure);
+          timeoutExecutor.executeTimedoutProcedure(procedure);
+        }
+      } else if (lockEntry != null) {
         scheduler.addFront(procedure);
         LOG.debug("Bypassing {} and its ancestors successfully, adding to queue", procedure);
       } else {
+        // If we don't have the lock, we can't re-submit the queue,
+        // since it is already executing. To get rid of the stuck situation, we
+        // need to restart the master. With the procedure set to bypass, the procedureExecutor
+        // will bypass it and won't get stuck again.
         LOG.debug("Bypassing {} and its ancestors successfully, but since it is already running, "
-            + "skipping add to queue", procedure);
+            + "skipping add to queue",
+          procedure);
       }
       return true;
 

hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/TimeoutExecutorThread.java

@@ -126,7 +126,7 @@ class TimeoutExecutorThread<TEnvironment> extends StoppableThread {
     }
   }
 
-  private void executeTimedoutProcedure(Procedure<TEnvironment> proc) {
+  protected void executeTimedoutProcedure(Procedure<TEnvironment> proc) {
     // The procedure received a timeout. if the procedure itself does not handle it,
     // call abort() and add the procedure back in the queue for rollback.
     if (proc.setTimeoutFailure(executor.getEnvironment())) {

hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureBypass.java

@@ -38,6 +38,7 @@ import org.junit.experimental.categories.Category;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.apache.hadoop.hbase.shaded.protobuf.generated.ProcedureProtos;
 
 
 @Category({MasterTests.class, SmallTests.class})
@@ -149,6 +150,18 @@ public class TestProcedureBypass {
     LOG.info("{} finished", proc);
   }
 
+  @Test
+  public void testBypassingWaitingTimeoutProcedures() throws Exception {
+    final WaitingTimeoutProcedure proc = new WaitingTimeoutProcedure();
+    long id = procExecutor.submitProcedure(proc);
+    Thread.sleep(500);
+    // bypass the procedure
+    assertTrue(procExecutor.bypassProcedure(id, 1000, true, false));
+
+    htu.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
+    LOG.info("{} finished", proc);
+  }
+
   @AfterClass
   public static void tearDown() throws Exception {
     procExecutor.stop();
@@ -208,6 +221,29 @@ public class TestProcedureBypass {
     }
   }
 
+  public static class WaitingTimeoutProcedure
+      extends ProcedureTestingUtility.NoopProcedure<TestProcEnv> {
+    public WaitingTimeoutProcedure() {
+      super();
+    }
+
+    @Override
+    protected Procedure[] execute(final TestProcEnv env)
+        throws ProcedureSuspendedException {
+      // Always suspend the procedure
+      setTimeout(50000);
+      setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);
+      skipPersistence();
+      throw new ProcedureSuspendedException();
+    }
+
+    @Override
+    protected synchronized boolean setTimeoutFailure(TestProcEnv env) {
+      setState(ProcedureProtos.ProcedureState.RUNNABLE);
+      procExecutor.getScheduler().addFront(this);
+      return false; // 'false' means that this procedure handled the timeout
+    }
+  }
 
   public enum StuckStateMachineState {
     START, THEN, END