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https://issues.apache.org/jira/browse/HDFS-11846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16026586#comment-16026586
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Anu Engineer commented on HDFS-11846:
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[~xyao] thanks for committing this and [~cheersyang] Thanks for fixing this
issue. A minor question, It looks like we have brought in a *Nullable*
annotation from *avro* , should we do that ?
{{import org.apache.avro.reflect.Nullable}}
If this is not intentional, I will file a jira to clean up this dependency
later. I am +1 on this commit.
> Ozone: Fix Http connection leaks in ozone clients
> -------------------------------------------------
>
> Key: HDFS-11846
> URL: https://issues.apache.org/jira/browse/HDFS-11846
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Fix For: HDFS-7240
>
> Attachments: HDFS-11846-HDFS-7240.001.patch,
> HDFS-11846-HDFS-7240.002.patch
>
>
> There are several problems
> # Http clients in {{OzoneVolume}}, {{OzoneBucket}} and {{OzoneClient}} are
> created per request, per [Reuse of HttpClient
> instance|http://hc.apache.org/httpclient-3.x/performance.html#Reuse_of_HttpClient_instance]
> doc, proposed to reuse the http client instance to reduce the over head.
> # Some resources in these classes were not properly cleaned up. E.g the http
> connection, HttpGet/HttpPost requests.
>
> This jira's purpose is to fix these issues and investigate how we can improve
> the client.
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