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https://issues.apache.org/jira/browse/HADOOP-18920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17778025#comment-17778025
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ASF GitHub Bot commented on HADOOP-18920:
-----------------------------------------
xinglin commented on PR #6146:
URL: https://github.com/apache/hadoop/pull/6146#issuecomment-1773686584
These two unit tests seem to be failed consistently during the last three
builds. It is a bit concerning.
@haiyang1987 could you confirm they are already failing in trunk as well?
Run these two unit tests for 10 times in trunk without your change and see if
we can see failed executions for these two unit test.
hadoop.util.curator.TestSecureZKCuratorManager
hadoop.util.curator.TestZKCuratorManager
> RPC Metrics : Optimize logic for log slow RPCs
> ----------------------------------------------
>
> Key: HADOOP-18920
> URL: https://issues.apache.org/jira/browse/HADOOP-18920
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
>
> HADOOP-12325 implement a capability where "slow" RPCs are logged in NN log.
> Current processing logic is the "slow" RPCs are to be those whose processing
> time is outside 3 standard deviation.
> However, in practice it is found that many logs of slow rpc are currently
> output, and sometimes RPCs with a processing time of 1ms are also declared as
> slow, this is not in line with actual expectations.
> Therefore, consider optimize the logic conditions of slow RPC and add a
> `logSlowRPCThresholdMs` variable to judge whether the current RPCas slow so
> that the expected slow RPC log can be logger.
> for `logSlowRPCThresholdMs`, we can support dynamic refresh to facilitate
> adjustments based on the actual operating conditions of the hdfs cluster.
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