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https://issues.apache.org/jira/browse/HIVE-25842?focusedWorklogId=710316&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-710316
]
ASF GitHub Bot logged work on HIVE-25842:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 18/Jan/22 08:18
Start Date: 18/Jan/22 08:18
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on a change in pull request #2916:
URL: https://github.com/apache/hive/pull/2916#discussion_r786503651
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Initiator.java
##########
@@ -331,6 +339,12 @@ private boolean
foundCurrentOrFailedCompactions(ShowCompactResponse compactions,
}
return false;
}
+
+ private void updateDeltaFilesMetrics(AcidDirectory directory, String dbName,
String tableName, String partName) {
Review comment:
i think, this method could be extracted to a common place to be used by
Cleaner and Initiator, like MetaStoreCompactorThread
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Issue Time Tracking
-------------------
Worklog Id: (was: 710316)
Time Spent: 1h 40m (was: 1.5h)
> Reimplement delta file metric collection
> ----------------------------------------
>
> Key: HIVE-25842
> URL: https://issues.apache.org/jira/browse/HIVE-25842
> Project: Hive
> Issue Type: Improvement
> Reporter: László Pintér
> Assignee: László Pintér
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> FUNCTIONALITY: Metrics are collected only when a Tez query runs a table
> (select * and select count( * ) don't update the metrics)
> Metrics aren't updated after compaction or cleaning after compaction, so
> users will probably see "issues" with compaction (like many active or
> obsolete or small deltas) that don't exist.
> RISK: Metrics are collected during queries – we tried to put a try-catch
> around each method in DeltaFilesMetricsReporter but of course this isn't
> foolproof. This is a HUGE performance and functionality liability. Tests
> caught some issues, but our tests aren't perfect.
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