Author: umamahesh
Date: Mon Mar 19 20:12:32 2012
New Revision: 1302633
URL: http://svn.apache.org/viewvc?rev=1302633&view=rev
Log:
Merge HDFS-3091. Update the usage limitations of ReplaceDatanodeOnFailure
policy in the config description for the smaller clusters. Contributed by
Nicholas.
Modified:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/native/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/datanode/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/secondary/
(props changed)
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/hdfs/
(props changed)
Propchange: hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/
------------------------------------------------------------------------------
Merged /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs:r1302624
Modified:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1302633&r1=1302632&r2=1302633&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
Mon Mar 19 20:12:32 2012
@@ -145,6 +145,9 @@ Release 0.23.3 - UNRELEASED
HDFS-3111. Missing license headers in trunk. (umamahesh)
+ HDFS-3091. Update the usage limitations of ReplaceDatanodeOnFailure policy
in
+ the config description for the smaller clusters. (szetszwo via umamahesh)
+
OPTIMIZATIONS
HDFS-2477. Optimize computing the diff between a block report and the
namenode state. (Tomasz Nykiel via hairong)
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java:r1302624
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/native/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/native:r1302624
Modified:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
URL:
http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml?rev=1302633&r1=1302632&r2=1302633&view=diff
==============================================================================
---
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
(original)
+++
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
Mon Mar 19 20:12:32 2012
@@ -371,6 +371,12 @@
This is a site-wide property to enable/disable the feature.
+ When the cluster size is extremely small, e.g. 3 nodes or less, cluster
+ administrators may want to set the policy to NEVER in the default
+ configuration file or disable this feature. Otherwise, users may
+ experience an unusually high rate of pipeline failures since it is
+ impossible to find new datanodes for replacement.
+
See also dfs.client.block.write.replace-datanode-on-failure.policy
</description>
</property>
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/datanode/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/datanode:r1302624
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs:r1302624
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/secondary/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/secondary:r1302624
Propchange:
hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/hdfs/
------------------------------------------------------------------------------
Merged
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/hdfs:r1302624
