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https://issues.apache.org/jira/browse/HDFS-15510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17176129#comment-17176129
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Hemanth Boyina edited comment on HDFS-15510 at 8/12/20, 8:04 AM:
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{quote}The issue here seems to be that the general one is not accounted
correctly, we would need to fix that.
{quote}
for an example : if we set namespace quota as 10 on mount entry with 2
destinations , for the both destinations we set quota as 10 each and in mount
table store for the mount entry we set namespace quota as 10 which is not
correct
Periodic Invoke gets quota usage from the destinations name service and gets
Quota set value from mount table store
was (Author: hemanthboyina):
{quote}The issue here seems to be that the general one is not accounted
correctly, we would need to fix that.
{quote}
for an example : if we set namespace quota as 10 on mount entry with 2
destinations , for the both destinations we set quota as 10 each and in mount
table store for the mount entry we set namespace quota as 10 which is not
correct
> RBF: Quota and Content Summary was not correct in Multiple Destinations
> -----------------------------------------------------------------------
>
> Key: HDFS-15510
> URL: https://issues.apache.org/jira/browse/HDFS-15510
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Hemanth Boyina
> Assignee: Hemanth Boyina
> Priority: Critical
>
> steps :
> *) create a mount entry with multiple destinations ( for suppose 2)
> *) Set NS quota as 10 for mount entry by dfsrouteradmin command, Content
> Summary on the Mount Entry shows NS quota as 20
> *) Create 10 files through router, on creating 11th file , NS Quota Exceeded
> Exception is coming
> though the Content Summary showing the NS quota as 20 , we are not able to
> create 20 files
>
> the problem here is router stores the mount entry's NS quota as 10 , but
> invokes NS quota on both the name services by set NS quota as 10 , so content
> summary on mount entry aggregates the content summary of both the name
> services by making NS quota as 20
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