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https://issues.apache.org/jira/browse/HIVE-21832?focusedWorklogId=256022&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-256022
]
ASF GitHub Bot logged work on HIVE-21832:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jun/19 16:16
Start Date: 07/Jun/19 16:16
Worklog Time Spent: 10m
Work Description: pvary commented on pull request #665: HIVE-21832: New
metrics to get the average queue/serving/response time
URL: https://github.com/apache/hive/pull/665#discussion_r291661699
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/metrics/LlapDaemonExecutorMetrics.java
##########
@@ -195,14 +202,22 @@ private LlapDaemonExecutorMetrics(String displayName,
JvmMetrics jm, String sess
this.executorThreadUserTime[i] = registry.newGauge(miu, 0L);
this.executorNames.put(ContainerRunnerImpl.THREAD_NAME_FORMAT_PREFIX +
i, i);
}
+ if (simpleAverageWindowDataSize > 0) {
+ this.queueTime = new
SynchronizedDescriptiveStatistics(simpleAverageWindowDataSize);
Review comment:
The 2 new averages are updated in InternalCompletionListener.onSuccess
callback which is running in a separate thread specifically to make sure that
the other tasks are not rejected because of this:
` // Callback on a separate thread so that when a task completes, the
thread in the main queue
// is actually available for execution and will not potentially result
in a RejectedExecution
`
There is only one more place when these stats are accessed - Metrics
collection, which should not cause problem either.
Am I right when I think that this means that this will not cause issue for
us until it is not used elsewhere?
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Issue Time Tracking
-------------------
Worklog Id: (was: 256022)
Time Spent: 40m (was: 0.5h)
> New metrics to get the average queue/serving/response time
> ----------------------------------------------------------
>
> Key: HIVE-21832
> URL: https://issues.apache.org/jira/browse/HIVE-21832
> Project: Hive
> Issue Type: Sub-task
> Components: llap
> Reporter: Peter Vary
> Assignee: Peter Vary
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-21832.2.patch, HIVE-21832.patch
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Simple
> [DescriptiveStatistics|https://commons.apache.org/proper/commons-math/javadocs/api-3.6/src-html/org/apache/commons/math3/stat/descriptive/DescriptiveStatistics.html#line.60]
> with window size would do here. Time is not important in this case.
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