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https://issues.apache.org/jira/browse/HDDS-4331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17213858#comment-17213858
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mingchao zhao edited comment on HDDS-4331 at 10/14/20, 12:13 PM:
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A bucket quota should not be greater than its Volume quota. Let's look at an
example. If we have a 10MB Volume and create five buckets under that Volume
with a quota of 5MB, the total quota is 25MB. In this case, the bucket creation
will always succeed, and we check the quota for bucket and volume when the data
is actually written. Each write needs to check whether the current bucket is
exceeding the limit and the current total volume usage is exceeding the limit.
Bucket quota may not be exceeded when writing data, but volume quota may be.
Therefore, volume quota still needs to be checked.
This optimization is unnecessary, close this.
was (Author: micahzhao):
A bucket quota should not be greater than its Volume quota. Let's look at an
example. If we have a 10MB Volume and create five buckets under that Volume
with a quota of 5MB, the total quota is 25MB. In this case, the bucket creation
will always succeed, and we check the quota for bucket and volume when the data
is actually written. Each write needs to check whether the current bucket is
exceeding the limit and the current total volume usage is exceeding the limit.
Bucket quota may not be exceeded when writing data, but volume quota may be.
Therefore, volume quota still needs to be checked.
> Space Quota: bucket quota not exceeded, volume needn’t check.
> -------------------------------------------------------------
>
> Key: HDDS-4331
> URL: https://issues.apache.org/jira/browse/HDDS-4331
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: mingchao zhao
> Assignee: mingchao zhao
> Priority: Minor
>
> The quota check has an optimization point. If bucket sets quota and quota is
> not exceeded, then the volume's quota needn't checked and is definitely not
> exceeded.
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