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https://issues.apache.org/jira/browse/HDFS-11229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15736493#comment-15736493
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Wei-Chiu Chuang commented on HDFS-11229:
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The failed test looks unrelated and can't be reproduced locally. I will file a
jira though.
> HDFS-11056 failed to close meta file
> ------------------------------------
>
> Key: HDFS-11229
> URL: https://issues.apache.org/jira/browse/HDFS-11229
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.7.4, 3.0.0-alpha2
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Blocker
> Attachments: HDFS-11229.001.patch
>
>
> The following code failed to close the file after it is read.
> {code:title=FsVolumeImpl#loadLastPartialChunkChecksum}
> RandomAccessFile raf = new RandomAccessFile(metaFile, "r");
> raf.seek(offsetInChecksum);
> raf.read(lastChecksum, 0, checksumSize);
> return lastChecksum;
> {code}
> This must be fixed because every append operation uses this piece of code.
> Without an explicit close, open files can reach system limit before
> RandomAccessFile objects are garbage collected.
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