Author: kihwal
Date: Fri Mar 8 20:36:24 2013
New Revision: 1454534
URL: http://svn.apache.org/r1454534
Log:
svn merge -c 1375790 Merging from trunk to branch-0.23 to fix HADOOP-8711.
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1454534&r1=1454533&r2=1454534&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
Fri Mar 8 20:36:24 2013
@@ -36,6 +36,10 @@ Release 0.23.7 - UNRELEASED
HADOOP-7358. Improve log levels when exceptions caught in RPC handler
(Todd Lipcon via shv)
+ HADOOP-8711. IPC Server supports adding exceptions for which
+ the message is printed and the stack trace is not printed to avoid chatter.
+ (Brandon Li via Suresh)
+
OPTIMIZATIONS
HADOOP-9147. Add missing fields to FIleStatus.toString.
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java?rev=1454534&r1=1454533&r2=1454534&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ipc/Server.java
Fri Mar 8 20:36:24 2013
@@ -43,11 +43,13 @@ import java.nio.channels.WritableByteCha
import java.security.PrivilegedExceptionAction;
import java.util.ArrayList;
import java.util.Collections;
+import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Random;
+import java.util.Set;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.LinkedBlockingQueue;
@@ -98,6 +100,42 @@ import org.apache.hadoop.util.StringUtil
public abstract class Server {
private final boolean authorize;
private boolean isSecurityEnabled;
+ private ExceptionsHandler exceptionsHandler = new ExceptionsHandler();
+
+ public void addTerseExceptions(Class<?>... exceptionClass) {
+ exceptionsHandler.addTerseExceptions(exceptionClass);
+ }
+
+ /**
+ * ExceptionsHandler manages Exception groups for special handling
+ * e.g., terse exception group for concise logging messages
+ */
+ static class ExceptionsHandler {
+ private volatile Set<String> terseExceptions = new HashSet<String>();
+
+ /**
+ * Add exception class so server won't log its stack trace.
+ * Modifying the terseException through this method is thread safe.
+ *
+ * @param exceptionClass exception classes
+ */
+ void addTerseExceptions(Class<?>... exceptionClass) {
+
+ // Make a copy of terseException for performing modification
+ final HashSet<String> newSet = new HashSet<String>(terseExceptions);
+
+ // Add all class names into the HashSet
+ for (Class<?> name : exceptionClass) {
+ newSet.add(name.toString());
+ }
+ // Replace terseException set
+ terseExceptions = Collections.unmodifiableSet(newSet);
+ }
+
+ boolean isTerse(Class<?> t) {
+ return terseExceptions.contains(t.toString());
+ }
+ }
/**
* The first four bytes of Hadoop RPC connections
@@ -1544,6 +1582,10 @@ public abstract class Server {
// on the server side, as opposed to just a normal exceptional
// result.
LOG.warn(logMsg, e);
+ } else if (exceptionsHandler.isTerse(e.getClass())) {
+ // Don't log the whole stack trace of these exceptions.
+ // Way too noisy!
+ LOG.info(logMsg);
} else {
LOG.info(logMsg, e);
}
Modified:
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java?rev=1454534&r1=1454533&r2=1454534&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestServer.java
Fri Mar 8 20:36:24 2013
@@ -20,6 +20,7 @@ package org.apache.hadoop.ipc;
import static org.junit.Assert.*;
+import java.io.IOException;
import java.net.BindException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
@@ -115,4 +116,15 @@ public class TestServer {
socket.close();
}
}
+
+ @Test
+ public void testExceptionsHandler() throws IOException {
+ Server.ExceptionsHandler handler = new Server.ExceptionsHandler();
+ handler.addTerseExceptions(IOException.class);
+ handler.addTerseExceptions(RpcServerException.class);
+
+ assertTrue(handler.isTerse(IOException.class));
+ assertTrue(handler.isTerse(RpcServerException.class));
+ assertFalse(handler.isTerse(RpcClientException.class));
+ }
}
