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https://issues.apache.org/jira/browse/HDFS-14150?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16729449#comment-16729449
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Yiqun Lin commented on HDFS-14150:
----------------------------------
I prefer to do this in admin server side. For client side, we will do the
additional rpc call of clearing the quota. Can can refactor the
{{synchronizeQuota}} function and reuse that in {{removeMountTableEntry}} and
{{updateMountTableEntry}}, like following (add the additional check of the
Router Quota):
{code:java}
private void synchronizeQuota(String path, long nsQuota, long ssQuota)
throws IOException {
if (router.isQuotaEnabled() &&
(nsQuota != HdfsConstants.QUOTA_DONT_SET
|| ssQuota != HdfsConstants.QUOTA_DONT_SET)) {
HdfsFileStatus ret = this.router.getRpcServer().getFileInfo(path);
if (ret != null) {
this.router.getRpcServer().getQuotaModule().setQuota(path, nsQuota,
ssQuota, null);
}
}
}
{code}
> RBF: Quotas of the sub-cluster should be removed when removing the mount point
> ------------------------------------------------------------------------------
>
> Key: HDFS-14150
> URL: https://issues.apache.org/jira/browse/HDFS-14150
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Takanobu Asanuma
> Assignee: Takanobu Asanuma
> Priority: Major
> Labels: RBF
> Attachments: HDFS-14150.1.patch
>
>
> From HDFS-14143
> {noformat}
> $ hdfs dfsrouteradmin -add /ns1_data ns1 /data
> $ hdfs dfsrouteradmin -setQuota /ns1_data -nsQuota 10 -ssQuota 10
> $ hdfs dfsrouteradmin -ls /ns1_data
> Source Destinations Owner
> Group Mode Quota/Usage
> /ns1_data ns1->/data tasanuma
> users rwxr-xr-x [NsQuota: 10/1, SsQuota:
> 10 B/0 B]
> $ hdfs dfsrouteradmin -rm /ns1_data
> $ hdfs dfsrouteradmin -add /ns1_data ns1 /data
> $ hdfs dfsrouteradmin -ls /ns1_data
> Source Destinations Owner
> Group Mode Quota/Usage
> /ns1_data ns1->/data tasanuma
> users rwxr-xr-x [NsQuota: -/-, SsQuota:
> -/-]
> $ hadoop fs -put file1 /ns1_data/file1
> put: The DiskSpace quota of /data is exceeded: quota = 10 B = 10 B but
> diskspace consumed = 402653184 B = 384 MB
> {noformat}
> This is because the quotas of the subclusters still remain after "hdfs
> dfsrouteradmin -rm". And "hdfs dfsrouteradmin -add" doesn't reflect the
> existing quotas.
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