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https://issues.apache.org/jira/browse/HDFS-13746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16581343#comment-16581343
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Daniel Templeton commented on HDFS-13746:
-----------------------------------------
Thanks, [~smeng], the patch looks great. One question:
{code}Math.toIntExact(groupRefreshTimeoutSec) * 1000 * 30{code}
Should that be
{code}Math.toIntExact(groupRefreshTimeoutSec * 1000) * 30{code}
or maybe even
{code}Math.toIntExact(groupRefreshTimeoutSec * 1000 * 30}
?
If you're going to proactively check for int overflows, it seems like you'd
want to do it for the final product rather than a factor. Thoughts?
> Still occasional "Should be different group" failure in
> TestRefreshUserMappings#testGroupMappingRefresh
> -------------------------------------------------------------------------------------------------------
>
> Key: HDFS-13746
> URL: https://issues.apache.org/jira/browse/HDFS-13746
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Siyao Meng
> Assignee: Siyao Meng
> Priority: Major
> Attachments: HDFS-13746.001.patch, HDFS-13746.002.patch,
> HDFS-13746.003.patch, HDFS-13746.004.patch, HDFS-13746.005.patch
>
>
> In https://issues.apache.org/jira/browse/HDFS-13723, increasing the amount of
> time in sleep() helps but the problem still appears, which is annoying.
>
> Solution:
> Use a loop to allow the test case to fail maxTrials times before declaring
> failure. Wait 50 ms between each retry.
>
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