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From "Rakesh R (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-8550) Erasure Coding: Fix FindBugs Multithreaded correctness Warning
Date Sat, 06 Jun 2015 04:46:00 GMT
Rakesh R created HDFS-8550:
------------------------------

             Summary: Erasure Coding: Fix FindBugs Multithreaded correctness Warning
                 Key: HDFS-8550
                 URL: https://issues.apache.org/jira/browse/HDFS-8550
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Rakesh R
            Assignee: Rakesh R


Findbug warning:- Inconsistent synchronization of org.apache.hadoop.hdfs.DFSOutputStream.streamer;
locked 89% of time
{code}
Bug type IS2_INCONSISTENT_SYNC (click for details) 
In class org.apache.hadoop.hdfs.DFSOutputStream
Field org.apache.hadoop.hdfs.DFSOutputStream.streamer
Synchronized 89% of the time
Unsynchronized access at DFSOutputStream.java:[line 146]
Unsynchronized access at DFSOutputStream.java:[line 859]
Unsynchronized access at DFSOutputStream.java:[line 627]
Unsynchronized access at DFSOutputStream.java:[line 630]
Unsynchronized access at DFSOutputStream.java:[line 640]
Unsynchronized access at DFSOutputStream.java:[line 342]
Unsynchronized access at DFSOutputStream.java:[line 744]
Unsynchronized access at DFSOutputStream.java:[line 903]
Synchronized access at DFSOutputStream.java:[line 737]
Synchronized access at DFSOutputStream.java:[line 913]
Synchronized access at DFSOutputStream.java:[line 726]
Synchronized access at DFSOutputStream.java:[line 756]
Synchronized access at DFSOutputStream.java:[line 762]
Synchronized access at DFSOutputStream.java:[line 757]
Synchronized access at DFSOutputStream.java:[line 758]
Synchronized access at DFSOutputStream.java:[line 762]
Synchronized access at DFSOutputStream.java:[line 483]
Synchronized access at DFSOutputStream.java:[line 486]
Synchronized access at DFSOutputStream.java:[line 717]
Synchronized access at DFSOutputStream.java:[line 719]
Synchronized access at DFSOutputStream.java:[line 722]
Synchronized access at DFSOutputStream.java:[line 408]
Synchronized access at DFSOutputStream.java:[line 408]
Synchronized access at DFSOutputStream.java:[line 423]
Synchronized access at DFSOutputStream.java:[line 426]
Synchronized access at DFSOutputStream.java:[line 411]
Synchronized access at DFSOutputStream.java:[line 452]
Synchronized access at DFSOutputStream.java:[line 452]
Synchronized access at DFSOutputStream.java:[line 439]
Synchronized access at DFSOutputStream.java:[line 439]
Synchronized access at DFSOutputStream.java:[line 439]
Synchronized access at DFSOutputStream.java:[line 670]
Synchronized access at DFSOutputStream.java:[line 580]
Synchronized access at DFSOutputStream.java:[line 574]
Synchronized access at DFSOutputStream.java:[line 592]
Synchronized access at DFSOutputStream.java:[line 583]
Synchronized access at DFSOutputStream.java:[line 581]
Synchronized access at DFSOutputStream.java:[line 621]
Synchronized access at DFSOutputStream.java:[line 609]
Synchronized access at DFSOutputStream.java:[line 621]
Synchronized access at DFSOutputStream.java:[line 597]
Synchronized access at DFSOutputStream.java:[line 612]
Synchronized access at DFSOutputStream.java:[line 597]
Synchronized access at DFSOutputStream.java:[line 588]
Synchronized access at DFSOutputStream.java:[line 624]
Synchronized access at DFSOutputStream.java:[line 612]
Synchronized access at DFSOutputStream.java:[line 588]
Synchronized access at DFSOutputStream.java:[line 632]
Synchronized access at DFSOutputStream.java:[line 632]
Synchronized access at DFSOutputStream.java:[line 616]
Synchronized access at DFSOutputStream.java:[line 633]
Synchronized access at DFSOutputStream.java:[line 657]
Synchronized access at DFSOutputStream.java:[line 658]
Synchronized access at DFSOutputStream.java:[line 695]
Synchronized access at DFSOutputStream.java:[line 698]
Synchronized access at DFSOutputStream.java:[line 784]
Synchronized access at DFSOutputStream.java:[line 795]
Synchronized access at DFSOutputStream.java:[line 801]
Synchronized access at DFSOutputStream.java:[line 155]
Synchronized access at DFSOutputStream.java:[line 158]
Synchronized access at DFSOutputStream.java:[line 433]
Synchronized access at DFSOutputStream.java:[line 886]
Synchronized access at DFSOutputStream.java:[line 463]
Synchronized access at DFSOutputStream.java:[line 469]
Synchronized access at DFSOutputStream.java:[line 463]
Synchronized access at DFSOutputStream.java:[line 470]
Synchronized access at DFSOutputStream.java:[line 465]
Synchronized access at DFSOutputStream.java:[line 749]
Synchronized access at DFSStripedOutputStream.java:[line 260]
Synchronized access at DFSStripedOutputStream.java:[line 325]
Synchronized access at DFSStripedOutputStream.java:[line 325]
Synchronized access at DFSStripedOutputStream.java:[line 335]
Synchronized access at DFSStripedOutputStream.java:[line 264]
Synchronized access at DFSStripedOutputStream.java:[line 511]
{code}



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