Yongjun Zhang created HDFS-10396:
------------------------------------
Summary: Using -diff option with DistCp may get "Comparison method
violates its general contract" exception
Key: HDFS-10396
URL: https://issues.apache.org/jira/browse/HDFS-10396
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Yongjun Zhang
Assignee: Yongjun Zhang
Using -diff option get the following exception due to a bug in the comparison
operator:
{code}
16/04/21 14:34:18 WARN tools.DistCp: Failed to use snapshot diff for distcp
java.lang.IllegalArgumentException: Comparison method violates its general
contract!
at java.util.TimSort.mergeHi(TimSort.java:868)
at java.util.TimSort.mergeAt(TimSort.java:485)
at java.util.TimSort.mergeForceCollapse(TimSort.java:426)
at java.util.TimSort.sort(TimSort.java:223)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:659)
at org.apache.hadoop.tools.DistCpSync.moveToTarget(DistCpSync.java:293)
at org.apache.hadoop.tools.DistCpSync.syncDiff(DistCpSync.java:261)
at org.apache.hadoop.tools.DistCpSync.sync(DistCpSync.java:131)
at org.apache.hadoop.tools.DistCp.execute(DistCp.java:163)
at org.apache.hadoop.tools.DistCp.run(DistCp.java:122)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at org.apache.hadoop.tools.DistCp.main(DistCp.java:432)
16/04/21 14:34:18 ERROR tools.DistCp: Exception encountered
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
