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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HDFS-13212) RBF: Fix router location cache issue
Date Wed, 07 Mar 2018 17:24:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-13212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16389833#comment-16389833
] 

Íñigo Goiri commented on HDFS-13212:
------------------------------------

Thanks [~wuweiwei] for the detailed explanation, that makes sense.
In the unit test, we may want to add an assert to check that we get the default location for:
{code}
// Add the default location to location cache
mountTable.getDestinationForPath("/testlocationcache");
{code}
Other than that, in  [^HDFS-13212-005.patch], there are a couple check style issues with the
line length.
Then {TestRouterQuota} is failing now, it actually might be related; do you mind checking?


> RBF: Fix router location cache issue
> ------------------------------------
>
>                 Key: HDFS-13212
>                 URL: https://issues.apache.org/jira/browse/HDFS-13212
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: federation, hdfs
>            Reporter: Weiwei Wu
>            Priority: Major
>         Attachments: HDFS-13212-001.patch, HDFS-13212-002.patch, HDFS-13212-003.patch,
HDFS-13212-004.patch, HDFS-13212-005.patch
>
>
> The MountTableResolver refreshEntries function have a bug when add a new mount table
entry which already have location cache. The old location cache will never be invalid until
this mount point change again.
> Need to invalid the location cache when add the mount table entries.



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