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Posted to commits@hive.apache.org by ha...@apache.org on 2013/09/25 07:00:47 UTC

svn commit: r1526107 - in /hive/trunk/metastore/src: java/org/apache/hadoop/hive/metastore/RawStore.java java/org/apache/hadoop/hive/metastore/RetryingRawStore.java test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java

Author: hashutosh
Date: Wed Sep 25 05:00:46 2013
New Revision: 1526107

URL: http://svn.apache.org/r1526107
Log:
HIVE-5181 : RetryingRawStore should not retry on logical failures (e.g. from commit) (Prasad Mujumdar via Ashutosh Chauhan)

Added:
    hive/trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java
Modified:
    hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java
    hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RetryingRawStore.java

Modified: hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java
URL: http://svn.apache.org/viewvc/hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java?rev=1526107&r1=1526106&r2=1526107&view=diff
==============================================================================
--- hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java (original)
+++ hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java Wed Sep 25 05:00:46 2013
@@ -18,6 +18,10 @@
 
 package org.apache.hadoop.hive.metastore;
 
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -53,6 +57,14 @@ import org.apache.thrift.TException;
 
 public interface RawStore extends Configurable {
 
+  /***
+   * Annotation to skip retries
+   */
+  @Target(value = ElementType.METHOD)
+  @Retention(value = RetentionPolicy.RUNTIME)
+  public @interface CanNotRetry {
+  }
+
   public abstract void shutdown();
 
   /**
@@ -70,11 +82,13 @@ public interface RawStore extends Config
    *
    * @return true or false
    */
+  @CanNotRetry
   public abstract boolean commitTransaction();
 
   /**
    * Rolls back the current transaction if it is active
    */
+  @CanNotRetry
   public abstract void rollbackTransaction();
 
   public abstract void createDatabase(Database db)

Modified: hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RetryingRawStore.java
URL: http://svn.apache.org/viewvc/hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RetryingRawStore.java?rev=1526107&r1=1526106&r2=1526107&view=diff
==============================================================================
--- hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RetryingRawStore.java (original)
+++ hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RetryingRawStore.java Wed Sep 25 05:00:46 2013
@@ -29,12 +29,10 @@ import org.apache.commons.lang.ClassUtil
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hive.common.JavaUtils;
 import org.apache.hadoop.hive.common.classification.InterfaceAudience;
 import org.apache.hadoop.hive.common.classification.InterfaceStability;
 import org.apache.hadoop.hive.conf.HiveConf;
 import org.apache.hadoop.hive.metastore.api.MetaException;
-import org.apache.hadoop.hive.metastore.hooks.JDOConnectionURLHook;
 import org.apache.hadoop.util.ReflectionUtils;
 
 @InterfaceAudience.Private
@@ -46,7 +44,7 @@ public class RetryingRawStore implements
   private final RawStore base;
   private int retryInterval = 0;
   private int retryLimit = 0;
-  private MetaStoreInit.MetaStoreInitData metaStoreInitData =
+  private final MetaStoreInit.MetaStoreInitData metaStoreInitData =
     new MetaStoreInit.MetaStoreInitData();
   private final int id;
   private final HiveConf hiveConf;
@@ -132,12 +130,13 @@ public class RetryingRawStore implements
           // Due to reflection, the jdo exception is wrapped in
           // invocationTargetException
           caughtException = (javax.jdo.JDOException) e.getCause();
-        }
-        else
+        } else {
           throw e.getCause();
+        }
       }
 
-      if (retryCount >= retryLimit) {
+      if (retryCount >= retryLimit ||
+          (method.getAnnotation(RawStore.CanNotRetry.class) != null)) {
         throw  caughtException;
       }
 

Added: hive/trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java
URL: http://svn.apache.org/viewvc/hive/trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java?rev=1526107&view=auto
==============================================================================
--- hive/trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java (added)
+++ hive/trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestRawStoreTxn.java Wed Sep 25 05:00:46 2013
@@ -0,0 +1,101 @@
+/**
+ * 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.hive.metastore;
+
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.jdo.JDOException;
+
+import junit.framework.TestCase;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+public class TestRawStoreTxn extends TestCase {
+
+  public static class DummyRawStoreWithCommitError extends DummyRawStoreForJdoConnection {
+    private static int callCount = 0;
+
+    @Override
+    /***
+     * Throw exception on first try
+     */
+    public boolean commitTransaction() {
+      callCount++;
+      if (callCount == 1 ) {
+        throw new JDOException ("Failed for call count " + callCount);
+      } else {
+        return true;
+      }
+    }
+  }
+
+  private ObjectStore objStore;
+  private HiveConf hiveConf;
+
+  @Override
+  protected void setUp() throws Exception {
+    super.setUp();
+    hiveConf = new HiveConf();
+  }
+
+  @Override
+  protected void tearDown() throws Exception {
+    super.tearDown();
+  }
+
+  /***
+   * Check annotations of the restricted methods
+   * @throws Exception
+   */
+  public void testCheckNoRetryMethods() throws Exception {
+    List<String> nonExecMethods =
+      Arrays.asList("commitTransaction", "commitTransaction");
+
+    RawStore rawStore = RetryingRawStore.getProxy(hiveConf, new Configuration(hiveConf),
+          hiveConf.getVar(HiveConf.ConfVars.METASTORE_RAW_STORE_IMPL), 1);
+    for (Method rawStoreMethod : RawStore.class.getMethods()) {
+      if (nonExecMethods.contains(rawStoreMethod.getName())) {
+        assertNotNull(rawStoreMethod.getAnnotation(RawStore.CanNotRetry.class));
+      }
+    }
+  }
+
+  /***
+   * Invoke commit and verify it doesn't get retried
+   * @throws Exception
+   */
+  public void testVerifyNoRetryMethods() throws Exception {
+    hiveConf.setVar(HiveConf.ConfVars.METASTORECONNECTURLKEY,
+        DummyJdoConnectionUrlHook.newUrl);;
+    hiveConf.setVar(HiveConf.ConfVars.METASTORE_RAW_STORE_IMPL,
+        DummyRawStoreWithCommitError.class.getName());
+    RawStore rawStore = RetryingRawStore.getProxy(hiveConf, new Configuration(hiveConf),
+        DummyRawStoreWithCommitError.class.getName(), 1);
+    try {
+      rawStore.commitTransaction();
+      fail("Commit should fail due to no retry");
+    } catch (JDOException e) {
+      // Excepted JDOException
+    }
+  }
+
+}