Author: cmccabe
Date: Sat Mar 15 07:52:19 2014
New Revision: 1577798
URL: http://svn.apache.org/r1577798
Log:
HDFS-6106. Reduce default for dfs.namenode.path.based.cache.refresh.interval.ms
(cmccabe)
Modified:
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
Modified: hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1577798&r1=1577797&r2=1577798&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Sat Mar 15
07:52:19 2014
@@ -406,6 +406,9 @@ Release 2.4.0 - UNRELEASED
HDFS-6084. Namenode UI - "Hadoop" logo link shouldn't go to hadoop
homepage. (Travis Thompson via wheat9)
+ HDFS-6106. Reduce default for
+ dfs.namenode.path.based.cache.refresh.interval.ms (cmccabe)
+
OPTIMIZATIONS
HDFS-5790. LeaseManager.findPath is very slow when many leases need
recovery
Modified:
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java?rev=1577798&r1=1577797&r2=1577798&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
(original)
+++
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
Sat Mar 15 07:52:19 2014
@@ -242,7 +242,7 @@ public class DFSConfigKeys extends Commo
public static final int
DFS_NAMENODE_LIST_CACHE_DIRECTIVES_NUM_RESPONSES_DEFAULT = 100;
public static final String
DFS_NAMENODE_PATH_BASED_CACHE_REFRESH_INTERVAL_MS =
"dfs.namenode.path.based.cache.refresh.interval.ms";
- public static final long
DFS_NAMENODE_PATH_BASED_CACHE_REFRESH_INTERVAL_MS_DEFAULT = 300000L;
+ public static final long
DFS_NAMENODE_PATH_BASED_CACHE_REFRESH_INTERVAL_MS_DEFAULT = 30000L;
// Whether to enable datanode's stale state detection and usage for reads
public static final String DFS_NAMENODE_AVOID_STALE_DATANODE_FOR_READ_KEY =
"dfs.namenode.avoid.read.stale.datanode";
@@ -370,7 +370,7 @@ public class DFSConfigKeys extends Commo
public static final String DFS_HEARTBEAT_INTERVAL_KEY =
"dfs.heartbeat.interval";
public static final long DFS_HEARTBEAT_INTERVAL_DEFAULT = 3;
public static final String DFS_NAMENODE_PATH_BASED_CACHE_RETRY_INTERVAL_MS
= "dfs.namenode.path.based.cache.retry.interval.ms";
- public static final long
DFS_NAMENODE_PATH_BASED_CACHE_RETRY_INTERVAL_MS_DEFAULT = 60000L;
+ public static final long
DFS_NAMENODE_PATH_BASED_CACHE_RETRY_INTERVAL_MS_DEFAULT = 30000L;
public static final String DFS_NAMENODE_DECOMMISSION_INTERVAL_KEY =
"dfs.namenode.decommission.interval";
public static final int DFS_NAMENODE_DECOMMISSION_INTERVAL_DEFAULT = 30;
public static final String DFS_NAMENODE_DECOMMISSION_NODES_PER_INTERVAL_KEY
= "dfs.namenode.decommission.nodes.per.interval";
Modified:
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
URL:
http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml?rev=1577798&r1=1577797&r2=1577798&view=diff
==============================================================================
---
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
(original)
+++
hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
Sat Mar 15 07:52:19 2014
@@ -1662,19 +1662,19 @@
<property>
<name>dfs.namenode.path.based.cache.refresh.interval.ms</name>
- <value>300000</value>
+ <value>30000</value>
<description>
The amount of milliseconds between subsequent path cache rescans. Path
cache rescans are when we calculate which blocks should be cached, and on
what datanodes.
- By default, this parameter is set to 300000, which is five minutes.
+ By default, this parameter is set to 30 seconds.
</description>
</property>
<property>
<name>dfs.namenode.path.based.cache.retry.interval.ms</name>
- <value>60000</value>
+ <value>30000</value>
<description>
When the NameNode needs to uncache something that is cached, or cache
something that is not cached, it must direct the DataNodes to do so by
