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https://issues.apache.org/jira/browse/HDFS-14812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16921481#comment-16921481
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Mohammad Arshad commented on HDFS-14812:
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{quote}
I think it was there but was removed post this comment :
{quote}
Hi [~ayushtkn], it was neither added not removed any time during HDFS-13443
implementation.
HDFS-13443 is updating mount table cache, it is not updating any other cache(it
is not updating RouterState cache also).
Running routers list is fetched from RouterState cache. If RouterState cache
gives stale information, we may NOT send mount table cache update request to
some routers OR send request to wrong routers.
RouterState can give stale information when any new router is added just before
add/update/delete mount table entry request or router state is changed just
before these operations.
So I think it is reasonable to update RouterState cache before getting running
router information.
> RBF: MountTableRefresherService should load cache when refresh
> --------------------------------------------------------------
>
> Key: HDFS-14812
> URL: https://issues.apache.org/jira/browse/HDFS-14812
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: xuzq
> Assignee: xuzq
> Priority: Major
> Attachments: HDFS-14812-trunk-001.patch, HDFS-14812-trunk-002.patch
>
>
> MountTableRefresherService should load routerStore when refresh mount table.
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