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https://issues.apache.org/jira/browse/HDFS-16118?focusedWorklogId=620306&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620306
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ASF GitHub Bot logged work on HDFS-16118:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Jul/21 02:05
Start Date: 08/Jul/21 02:05
Worklog Time Spent: 10m
Work Description: jianghuazhu commented on pull request #3186:
URL: https://github.com/apache/hadoop/pull/3186#issuecomment-876061665
Some unit tests failed and have nothing to do with this function.
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Issue Time Tracking
-------------------
Worklog Id: (was: 620306)
Time Spent: 0.5h (was: 20m)
> Improve the number of handlers that initialize
> NameNodeRpcServer#clientRpcServer
> --------------------------------------------------------------------------------
>
> Key: HDFS-16118
> URL: https://issues.apache.org/jira/browse/HDFS-16118
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> When initializing NameNodeRpcServer, if the value of
> dfs.namenode.lifeline.handler.count is set to be less than 0 (such as -1, of
> course, this is rare), when determining the number of lifeline RPC handlers,
> it will be based on dfs.namenode.handler .count * lifelineHandlerRatio is
> determined.
> The code can be found:
> int lifelineHandlerCount = conf.getInt(
> DFS_NAMENODE_LIFELINE_HANDLER_COUNT_KEY, 0);
> if (lifelineHandlerCount <= 0) {
> float lifelineHandlerRatio = conf.getFloat(
> DFS_NAMENODE_LIFELINE_HANDLER_RATIO_KEY,
> DFS_NAMENODE_LIFELINE_HANDLER_RATIO_DEFAULT);
> lifelineHandlerCount = Math.max(
> (int)(handlerCount * lifelineHandlerRatio), 1);
> }
> When this happens, the handlerCount should be subtracted from the
> lifelineHandlerCount when in fact it doesn't.
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