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From st...@apache.org
Subject svn commit: r1166803 - /hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java
Date Thu, 08 Sep 2011 17:03:47 GMT
Author: stack
Date: Thu Sep  8 17:03:46 2011
New Revision: 1166803

URL: http://svn.apache.org/viewvc?rev=1166803&view=rev
Log:
HBASE-4015 Refactor the TimeoutMonitor to make it less racy

Added:
    hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java

Added: hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java
URL: http://svn.apache.org/viewvc/hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java?rev=1166803&view=auto
==============================================================================
--- hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java (added)
+++ hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/TimeOutManagerCallable.java Thu
Sep  8 17:03:46 2011
@@ -0,0 +1,124 @@
+/**
+ * Copyright 2011 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master;
+
+import java.util.concurrent.Callable;
+
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.master.AssignmentManager.TimeOutOperationType;
+
+/**
+ * A callable object that invokes the corresponding action that needs to be
+ * taken when timeout thread deducts a region was in tranisition for a long
+ * time.  Implementing as future callable we are able to act on the timeout
+ * asynchronoulsy
+ *
+ */
+public class TimeOutManagerCallable implements Callable<Object> {
+
+  private AssignmentManager assignmentManager;
+
+  private HRegionInfo hri;
+
+  private TimeOutOperationType operation;
+
+  public TimeOutManagerCallable(AssignmentManager assignmentManager,
+      HRegionInfo hri, TimeOutOperationType operation) {
+    this.assignmentManager = assignmentManager;
+    this.hri = hri;
+    this.operation = operation;
+  }
+
+  @Override
+  public Object call() throws Exception {
+    if (TimeOutOperationType.ASSIGN.equals(operation)) {
+      assignmentManager.assign(hri, true, true, true);
+    } else {
+      assignmentManager.unassign(hri);
+    }
+    return null;
+  }
+
+}
+
+
+
+/**
+ * Copyright 2011 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.master;
+
+import java.util.concurrent.Callable;
+
+import org.apache.hadoop.hbase.HRegionInfo;
+import org.apache.hadoop.hbase.master.AssignmentManager.TimeOutOperationType;
+
+/**
+ * A callable object that invokes the corresponding action that needs to be
+ * taken when timeout thread deducts a region was in tranisition for a long
+ * time.  Implementing as future callable we are able to act on the timeout
+ * asynchronoulsy
+ *
+ */
+public class TimeOutManagerCallable implements Callable<Object> {
+
+  private AssignmentManager assignmentManager;
+
+  private HRegionInfo hri;
+
+  private TimeOutOperationType operation;
+
+  public TimeOutManagerCallable(AssignmentManager assignmentManager,
+      HRegionInfo hri, TimeOutOperationType operation) {
+    this.assignmentManager = assignmentManager;
+    this.hri = hri;
+    this.operation = operation;
+  }
+
+  @Override
+  public Object call() throws Exception {
+    if (TimeOutOperationType.ASSIGN.equals(operation)) {
+      assignmentManager.assign(hri, true, true, true);
+    } else {
+      assignmentManager.unassign(hri);
+    }
+    return null;
+  }
+
+}
+
+
+



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