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Posted to issues@hive.apache.org by "guangbao zhao (Jira)" <ji...@apache.org> on 2021/08/24 11:34:00 UTC
[jira] [Work started] (HIVE-25474) concurrency add jars cause
hiveserver2 sys cpu to high
[ https://issues.apache.org/jira/browse/HIVE-25474?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HIVE-25474 started by guangbao zhao.
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> concurrency add jars cause hiveserver2 sys cpu to high
> ------------------------------------------------------
>
> Key: HIVE-25474
> URL: https://issues.apache.org/jira/browse/HIVE-25474
> Project: Hive
> Issue Type: Improvement
> Components: Hive, HiveServer2
> Affects Versions: 3.1.2
> Reporter: guangbao zhao
> Assignee: guangbao zhao
> Priority: Major
> Fix For: 3.1.2
>
> Attachments: HIVE-25474.patch
>
>
> In the Linux environment, when there are multiple concurrent add jars through HiveCli or JDBC, the system cpu will increase. The currently used FileUtil.chmod(dest, "ugo+rx", true); method is used for file authorization, However, in jdk7+, can use Files.setPosixFilePermissions(path, perms); for file authorization. The performance is seventy to eighty times that of the above. Why not apply this method?
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