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https://issues.apache.org/jira/browse/HADOOP-14660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16088874#comment-16088874
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Hadoop QA commented on HADOOP-14660:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 4s{color}
| {color:red} HADOOP-14660 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HADOOP-14660 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12877462/HADOOP-14660-006.patch
|
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/12792/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> wasb: improve throughput by 34% when account limit exceeded
> -----------------------------------------------------------
>
> Key: HADOOP-14660
> URL: https://issues.apache.org/jira/browse/HADOOP-14660
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/azure
> Reporter: Thomas
> Assignee: Thomas
> Attachments: HADOOP-14660-001.patch, HADOOP-14660-002.patch,
> HADOOP-14660-003.patch, HADOOP-14660-004.patch, HADOOP-14660-005.patch,
> HADOOP-14660-006.patch
>
>
> Big data workloads frequently exceed the Azure Storage max ingress and egress
> limits
> (https://docs.microsoft.com/en-us/azure/azure-subscription-service-limits).
> For example, the max ingress limit for a GRS account in the United States is
> currently 10 Gbps. When the limit is exceeded, the Azure Storage service
> fails a percentage of incoming requests, and this causes the client to
> initiate the retry policy. The retry policy delays requests by sleeping, but
> the sleep duration is independent of the client throughput and account limit.
> This results in low throughput, due to the high number of failed requests
> and thrashing causes by the retry policy.
> To fix this, we introduce a client-side throttle which minimizes failed
> requests and maximizes throughput. Tests have shown that this improves
> throughtput by ~34% when the storage account max ingress and/or egress limits
> are exceeded.
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