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https://issues.apache.org/jira/browse/HDFS-16331?focusedWorklogId=688039&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-688039
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ASF GitHub Bot logged work on HDFS-16331:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Nov/21 14:09
Start Date: 30/Nov/21 14:09
Worklog Time Spent: 10m
Work Description: tomscut commented on pull request #3676:
URL: https://github.com/apache/hadoop/pull/3676#issuecomment-982670912
> @tomscut Thanks for updating it. LGTM.
>
> I will merge this PR later this week if there are no other concerns from
other reviewers.
Thanks @tasanuma for your careful review and many suggestions.
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Issue Time Tracking
-------------------
Worklog Id: (was: 688039)
Time Spent: 4h 40m (was: 4.5h)
> Make dfs.blockreport.intervalMsec reconfigurable
> ------------------------------------------------
>
> Key: HDFS-16331
> URL: https://issues.apache.org/jira/browse/HDFS-16331
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2021-11-18-09-33-24-236.png,
> image-2021-11-18-09-35-35-400.png
>
> Time Spent: 4h 40m
> Remaining Estimate: 0h
>
> We have a cold data cluster, which stores as EC policy. There are 24 fast
> disks on each node and each disk is 7 TB.
> Recently, many nodes have more than 10 million blocks, and the interval of
> FBR is 6h as default. Frequent FBR caused great pressure on NN.
> !image-2021-11-18-09-35-35-400.png|width=334,height=229!
> !image-2021-11-18-09-33-24-236.png|width=566,height=159!
> We want to increase the interval of FBR, but have to rolling restart the DNs,
> this operation is very heavy. In this scenario, it is necessary to make
> _dfs.blockreport.intervalMsec_ reconfigurable.
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