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https://issues.apache.org/jira/browse/HIVE-21740?focusedWorklogId=251656&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-251656
]
ASF GitHub Bot logged work on HIVE-21740:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 31/May/19 09:33
Start Date: 31/May/19 09:33
Worklog Time Spent: 10m
Work Description: pvary commented on pull request #633: HIVE-21740:
Collect LLAP execution latency metrics
URL: https://github.com/apache/hive/pull/633#discussion_r289320836
##########
File path:
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java
##########
@@ -3154,4 +3160,22 @@ public void taskInfoUpdated(TezTaskAttemptID attemptId,
boolean isGuaranteed) {
+ attemptId + ", " + newState);
sendUpdateMessageAsync(ti, newState);
}
+
+ private void updateMetrics(TaskAttemptImpl taskAttempt) {
+ // Only do it for successful map tasks
+ if (!TaskAttemptState.SUCCEEDED.equals(taskAttempt.getState()) ||
!isMapTask(taskAttempt)) {
+ return;
+ }
+ // Check if this task was already assigned to a node
+ NodeInfo nodeInfo = knownTasks.get(taskAttempt).assignedNode;
+ if (nodeInfo == null) {
+ return;
+ }
+
+ metrics.addTaskLatency(nodeInfo.shortStringBase,
taskAttempt.getFinishTime() - taskAttempt.getLaunchTime());
+ }
+
+ private boolean isMapTask(TaskAttemptImpl taskAttempt) {
Review comment:
I am not yet entirely familiar with this part of the code.
I thought that the vertex can tell us more but getVertex is package private
method for TaskAttemptImp, and getting the Vertex from would need something
like this (found in getTransitiveVertexOutputs):
DagInfo info = getContext().getCurrentDagInfo();
if (!(info instanceof DAG)) {
LOG.warn("DAG info is not a DAG");
return;
}
DAG dag = (DAG) info;
Vertex vertex = dag.getVertex(taskAttempt.getVertexID());
------------------
I found casting DagInfo to DAG more shady than relying on counters, but feel
free to disagree.
Also open to any suggestions where should I dig around more to find a better
solution!
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Issue Time Tracking
-------------------
Worklog Id: (was: 251656)
Time Spent: 5.5h (was: 5h 20m)
> Collect LLAP execution latency metrics
> --------------------------------------
>
> Key: HIVE-21740
> URL: https://issues.apache.org/jira/browse/HIVE-21740
> Project: Hive
> Issue Type: New Feature
> Reporter: Peter Vary
> Assignee: Peter Vary
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-21740.2.patch, HIVE-21740.3.patch,
> HIVE-21740.4.patch, HIVE-21740.5.patch, HIVE-21740.patch
>
> Time Spent: 5.5h
> Remaining Estimate: 0h
>
> Collect metrics for LLAP task execution times
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