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Posted to hdfs-issues@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2018/05/10 22:38:00 UTC
[jira] [Updated] (HDFS-13272) DataNodeHttpServer to have
configurable HttpServer2 threads
[ https://issues.apache.org/jira/browse/HDFS-13272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Douglas updated HDFS-13272:
---------------------------------
Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.9.2
Status: Resolved (was: Patch Available)
> DataNodeHttpServer to have configurable HttpServer2 threads
> -----------------------------------------------------------
>
> Key: HDFS-13272
> URL: https://issues.apache.org/jira/browse/HDFS-13272
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Fix For: 2.9.2
>
> Attachments: HDFS-13272-branch-2.000.patch, HDFS-13272-branch-2.001.patch, testout-HDFS-13272.001, testout-branch-2
>
>
> In HDFS-7279, the Jetty server on the DataNode was hard-coded to use 10 threads. In addition to the possibility of this being too few threads, it is much higher than necessary in resource constrained environments such as MiniDFSCluster. To avoid compatibility issues, rather than using {{HttpServer2#HTTP_MAX_THREADS}} directly, we can introduce a new configuration for the DataNode's thread pool size.
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