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https://issues.apache.org/jira/browse/HDFS-10753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15417783#comment-15417783
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Nemo Chen commented on HDFS-10753:
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Hi, I made the HDFS-10753, HDFS-10749 superceded by HDFS-10752.
For others(mapreduce, yarn) i will create a jira issue which supercedes every
related issues.
Please let me know if you have problems.
> Method invocation in log can be replaced by variable because the variable's
> toString method contains more info
> --------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10753
> URL: https://issues.apache.org/jira/browse/HDFS-10753
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.7.2
> Reporter: Nemo Chen
> Labels: easyfix, easytest
>
> Similar to the fix in HADOOP-6419, in file:
> hadoop-rel-release-2.7.2/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/CorruptReplicasMap.java
> in line 76, the blk.getBlockName() method invocation is invoked on variable
> blk. "blk" is the class instance of Block.
> {code}
> void addToCorruptReplicasMap(Block blk, DatanodeDescriptor dn,
> String reason, Reason reasonCode) {
> ...
> NameNode.blockStateChangeLog.info(
> "BLOCK NameSystem.addToCorruptReplicasMap: {} added as corrupt on "
> + "{} by {} {}", blk.getBlockName(), dn, Server.getRemoteIp(),
> reasonText);
> {code}
> In file:
> hadoop-rel-release-2.7.2/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/Block.java
> {code}
> @Override
> public String toString() {
> return getBlockName() + "_" + getGenerationStamp();
> }
> {code}
> The toString() method contain not only getBlockName() but also
> getGenerationStamp which may be helpful for debugging purpose. Therefore
> blk.getBlockName() can be replaced by blk
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