findbugs : fix "Inconsistent Synchronization" warnings in hdfs
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Key: HADOOP-5854
URL: https://issues.apache.org/jira/browse/HADOOP-5854
Project: Hadoop Core
Issue Type: Improvement
Components: dfs
Reporter: Raghu Angadi
Assignee: Raghu Angadi
This jira fixes the following findbugs warnings :
* Inconsistent synchronization of
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.closed; locked 75% of time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.persistBlocks; locked 66% of
time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.common.UpgradeManager.currentUpgrades; locked 61%
of time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.common.UpgradeManager.upgradeState; locked 75% of
time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.namenode.FSDirectory.ready; locked 50% of time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.datanode.DataBlockScanner.verificationLog; locked
45% of time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.safeMode; locked 48% of time
* Inconsistent synchronization of
org.apache.hadoop.hdfs.server.namenode.FSNamesystem$SafeModeInfo.extension;
locked 80% of time
* Inconsistent synchronization of
org.apache.hadoop.io.SequenceFile$Reader.sync; locked 85% of time
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