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Posted to common-issues@hadoop.apache.org by "Steve Loughran (Jira)" <ji...@apache.org> on 2022/06/25 11:34:00 UTC
[jira] [Commented] (HADOOP-18313) AliyunOSS: AliyunOSSBlockOutputStream should not mark the temporary file for deletion
[ https://issues.apache.org/jira/browse/HADOOP-18313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17558756#comment-17558756 ]
Steve Loughran commented on HADOOP-18313:
-----------------------------------------
I agree. better to declare the temp dir under the \{env.LOCAL} directory points to the YARN dir which is cleaned up when a container is terminated. the good thing there is no matter how the process dies, the files are deleted
> AliyunOSS: AliyunOSSBlockOutputStream should not mark the temporary file for deletion
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-18313
> URL: https://issues.apache.org/jira/browse/HADOOP-18313
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs/oss
> Affects Versions: 2.10.2, 3.2.3, 3.3.3
> Reporter: wujinhu
> Assignee: wujinhu
> Priority: Major
>
> AliyunOSSBlockOutputStream buffers data in local directory before uploading to OSS. It uses LocalDirAllocator.createTmpFileForWrite which will create a temp file on this directory and invoke DeleteOnExitHook.add to add the path to a set and will be deleted on VM exit through a shutdown hook. However, the size of set will be growing if the VM does not exit.
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