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From s..@apache.org
Subject svn commit: r916531 - in /hadoop/common/branches/branch-0.20: CHANGES.txt src/core/org/apache/hadoop/ipc/Server.java
Date Fri, 26 Feb 2010 01:46:19 GMT
Author: shv
Date: Fri Feb 26 01:46:19 2010
New Revision: 916531

URL: http://svn.apache.org/viewvc?rev=916531&view=rev
Log:
HADOOP-1849. Merge -r 916528:916529 from trunk to branch-0.20.

Modified:
    hadoop/common/branches/branch-0.20/CHANGES.txt
    hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/ipc/Server.java

Modified: hadoop/common/branches/branch-0.20/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20/CHANGES.txt?rev=916531&r1=916530&r2=916531&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20/CHANGES.txt (original)
+++ hadoop/common/branches/branch-0.20/CHANGES.txt Fri Feb 26 01:46:19 2010
@@ -126,6 +126,9 @@
     HADOOP-5612. Some c++ scripts are not chmodded before ant execution.
     (Todd Lipcon via tomwhite)
 
+    HADOOP-1849. Add undocumented configuration parameter for per handler 
+    call queue size in IPC Server. (shv)
+
 Release 0.20.1 - 2009-09-01
 
   INCOMPATIBLE CHANGES

Modified: hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/ipc/Server.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/ipc/Server.java?rev=916531&r1=916530&r2=916531&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/ipc/Server.java (original)
+++ hadoop/common/branches/branch-0.20/src/core/org/apache/hadoop/ipc/Server.java Fri Feb
26 01:46:19 2010
@@ -88,7 +88,9 @@
   /**
    * How many calls/handler are allowed in the queue.
    */
-  private static final int MAX_QUEUE_SIZE_PER_HANDLER = 100;
+  private static final int IPC_SERVER_HANDLER_QUEUE_SIZE_DEFAULT = 100;
+  private static final String  IPC_SERVER_HANDLER_QUEUE_SIZE_KEY = 
+                                            "ipc.server.handler.queue.size";
   
   public static final Log LOG = LogFactory.getLog(Server.class);
 
@@ -1016,7 +1018,9 @@
     this.paramClass = paramClass;
     this.handlerCount = handlerCount;
     this.socketSendBufferSize = 0;
-    this.maxQueueSize = handlerCount * MAX_QUEUE_SIZE_PER_HANDLER;
+    this.maxQueueSize = handlerCount * conf.getInt(
+                                IPC_SERVER_HANDLER_QUEUE_SIZE_KEY,
+                                IPC_SERVER_HANDLER_QUEUE_SIZE_DEFAULT);
     this.callQueue  = new LinkedBlockingQueue<Call>(maxQueueSize); 
     this.maxIdleTime = 2*conf.getInt("ipc.client.connection.maxidletime", 1000);
     this.maxConnectionsToNuke = conf.getInt("ipc.client.kill.max", 10);



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