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https://issues.apache.org/jira/browse/FLINK-5818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15876111#comment-15876111
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ASF GitHub Bot commented on FLINK-5818:
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Github user greghogan commented on the issue:
https://github.com/apache/flink/pull/3335
@WangTaoTheTonic there is no reason for Flink to support a feature which
already has proper implementations in a lower layer. Every configuration option
adds to users' cognitive load and increases the odds of misconfiguration and/or
security vulnerabilities. Apart from our discussion, as noted by @StephanEwen
if you wish to add this feature then it should be discussed first on the
mailing list.
> change checkpoint dir permission to 700 for security reason
> -----------------------------------------------------------
>
> Key: FLINK-5818
> URL: https://issues.apache.org/jira/browse/FLINK-5818
> Project: Flink
> Issue Type: Sub-task
> Components: Security, State Backends, Checkpointing
> Reporter: Tao Wang
>
> Now checkpoint directory is made w/o specified permission, so it is easy for
> another user to delete or read files under it, which will cause restore
> failure or information leak.
> It's better to lower it down to 700.
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