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Posted to hdfs-dev@hadoop.apache.org by "Akira Ajisaka (Jira)" <ji...@apache.org> on 2021/11/02 02:07:00 UTC
[jira] [Resolved] (HDFS-14240) blockReport test in
NNThroughputBenchmark throws ArrayIndexOutOfBoundsException
[ https://issues.apache.org/jira/browse/HDFS-14240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Akira Ajisaka resolved HDFS-14240.
----------------------------------
Assignee: (was: Ranith Sardar)
Resolution: Duplicate
Closing as duplicate.
> blockReport test in NNThroughputBenchmark throws ArrayIndexOutOfBoundsException
> -------------------------------------------------------------------------------
>
> Key: HDFS-14240
> URL: https://issues.apache.org/jira/browse/HDFS-14240
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Shen Yinjie
> Priority: Major
> Attachments: screenshot-1.png
>
>
> _emphasized text_When I run a blockReport test with NNThroughputBenchmark, BlockReportStats.addBlocks() throws ArrayIndexOutOfBoundsException.
> digging the code:
> {code:java}
> for(DatanodeInfo dnInfo : loc.getLocations())
> { int dnIdx = dnInfo.getXferPort() - 1; datanodes[dnIdx].addBlock(loc.getBlock().getLocalBlock());{code}
>
> problem is here:array datanodes's length is determined by args as "-datanodes" or "-threads" ，but dnIdx = dnInfo.getXferPort() is a random port.
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