Add user group cache for Fuse SystemUserGroupAuthPolicy#17726
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humengyu2012 wants to merge 1 commit intoAlluxio:master-2.xfrom
Open
Add user group cache for Fuse SystemUserGroupAuthPolicy#17726humengyu2012 wants to merge 1 commit intoAlluxio:master-2.xfrom
humengyu2012 wants to merge 1 commit intoAlluxio:master-2.xfrom
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Member
| Thanks for the work! |
Contributor
| Seems like this could be applied to 3.x? @LuQQiu |
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What changes are proposed in this pull request?
Add user group cache for Fuse SystemUserGroupAuthPolicy.
Why are the changes needed?
We have a directory with an owner named "hive". This directory contains 1000 files. When our local fuse does not have a user named "hive", it will invoke the "id -u" command 1000 times. Listing this directory would take 8 seconds. After adding caching, this time can be reduced to less than 0.5 seconds.
List in hdfs:
List in fuse:
And log in fuse:
Does this PR introduce any user facing changes?
Please list the user-facing changes introduced by your change, including