Nemo Chen created HDFS-10753:
--------------------------------
Summary: 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
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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