GitHub user WangTaoTheTonic opened a pull request:
https://github.com/apache/flink/pull/3335
[FLINK-5818][Security]change checkpoint dir permission to 700
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.
- [x] Tests & Build
- Functionality added by the pull request is covered by tests

You can merge this pull request into a Git repository by running:
$ git pull https://github.com/WangTaoTheTonic/flink FLINK-5818
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3335.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #3335
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commit 02eef87dc2bfaa6737efad023916898719d34fe2
Author: WangTaoTheTonic <[email protected]>
Date: 2017-02-16T11:24:43Z
change checkpoint dir permission to 700
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