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https://issues.apache.org/jira/browse/HDFS-15619?focusedWorklogId=531718&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-531718
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ASF GitHub Bot logged work on HDFS-15619:
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Author: ASF GitHub Bot
Created on: 06/Jan/21 06:42
Start Date: 06/Jan/21 06:42
Worklog Time Spent: 10m
Work Description: nilotpalnandi opened a new pull request #2595:
URL: https://github.com/apache/hadoop/pull/2595
https://issues.apache.org/jira/browse/HDFS-15619
Metrics for -
1. Number of snapshot GC runs
2. Number of empty snapshot GC runs
3. Number of successful snapshot GC runs
4. Number of total snapshot delete operations
5. Number of out-of-order snapshot delete operations
6. Number of in-order snapshot delete operations
7. Number of ACTIVE snapshots
8. Number of DELETED snapshots
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Issue Time Tracking
-------------------
Worklog Id: (was: 531718)
Remaining Estimate: 0h
Time Spent: 10m
> Metric for ordered snapshot deletion GC thread
> ----------------------------------------------
>
> Key: HDFS-15619
> URL: https://issues.apache.org/jira/browse/HDFS-15619
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Nilotpal Nandi
> Assignee: Nilotpal Nandi
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Following info should be captured and shown in JMX for garbage collection
> thread of ordered snapshot deletion
> * metric for all pending snapshots to be GCed
> * Number of times GC thread ran
> * Number of Snapshots already GCed
> * Average time taken by each GC run
> * Thread running Status
> * metric for failed deletion of GC thread
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