Author: arp
Date: Tue Jul 29 02:55:27 2014
New Revision: 1614242
URL: http://svn.apache.org/r1614242
Log:
HADOOP-8069. Enable TCP_NODELAY by default for IPC. (Contributed by Todd Lipcon)
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
Modified: hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt?rev=1614242&r1=1614241&r2=1614242&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
(original)
+++ hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt Tue Jul
29 02:55:27 2014
@@ -460,6 +460,9 @@ Release 2.6.0 - UNRELEASED
HADOOP-10882. Move DirectBufferPool into common util. (todd)
+ HADOOP-8069. Enable TCP_NODELAY by default for IPC. (Todd Lipcon via
+ Arpit Agarwal)
+
OPTIMIZATIONS
BUG FIXES
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java?rev=1614242&r1=1614241&r2=1614242&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
(original)
+++
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/CommonConfigurationKeysPublic.java
Tue Jul 29 02:55:27 2014
@@ -207,7 +207,7 @@ public class CommonConfigurationKeysPubl
public static final String IPC_CLIENT_TCPNODELAY_KEY =
"ipc.client.tcpnodelay";
/** Defalt value for IPC_CLIENT_TCPNODELAY_KEY */
- public static final boolean IPC_CLIENT_TCPNODELAY_DEFAULT = false;
+ public static final boolean IPC_CLIENT_TCPNODELAY_DEFAULT = true;
/** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
public static final String IPC_SERVER_LISTEN_QUEUE_SIZE_KEY =
"ipc.server.listen.queue.size";
@@ -226,7 +226,7 @@ public class CommonConfigurationKeysPubl
public static final String IPC_SERVER_TCPNODELAY_KEY =
"ipc.server.tcpnodelay";
/** Default value for IPC_SERVER_TCPNODELAY_KEY */
- public static final boolean IPC_SERVER_TCPNODELAY_DEFAULT = false;
+ public static final boolean IPC_SERVER_TCPNODELAY_DEFAULT = true;
/** See <a href="{@docRoot}/../core-default.html">core-default.xml</a> */
public static final String HADOOP_RPC_SOCKET_FACTORY_CLASS_DEFAULT_KEY =
Modified:
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml?rev=1614242&r1=1614241&r2=1614242&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
(original)
+++
hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
Tue Jul 29 02:55:27 2014
@@ -807,25 +807,6 @@ for ldap providers in the same way as ab
</description>
</property>
-<property>
- <name>ipc.server.tcpnodelay</name>
- <value>false</value>
- <description>Turn on/off Nagle's algorithm for the TCP socket connection on
- the server. Setting to true disables the algorithm and may decrease latency
- with a cost of more/smaller packets.
- </description>
-</property>
-
-<property>
- <name>ipc.client.tcpnodelay</name>
- <value>false</value>
- <description>Turn on/off Nagle's algorithm for the TCP socket connection on
- the client. Setting to true disables the algorithm and may decrease latency
- with a cost of more/smaller packets.
- </description>
-</property>
-
-
<!-- Proxy Configuration -->
<property>
