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https://issues.apache.org/jira/browse/HDFS-16504?focusedWorklogId=740639&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-740639
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ASF GitHub Bot logged work on HDFS-16504:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Mar/22 03:02
Start Date: 14/Mar/22 03:02
Worklog Time Spent: 10m
Work Description: Neilxzn opened a new pull request #4068:
URL: https://github.com/apache/hadoop/pull/4068
…eckOperation when NN process getBlocks
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### Description of PR
https://issues.apache.org/jira/browse/HDFS-16504
### How was this patch tested?
no new test
### For code changes:
add new config `dfs.namenode.get-blocks.check.operation`. Whether enable
checkOperation when Namenode process getBlocks. It is enabled (true) by
default.
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Issue Time Tracking
-------------------
Worklog Id: (was: 740639)
Remaining Estimate: 0h
Time Spent: 10m
> add `dfs.namenode.get-blocks.check.operation` to enable or disable
> checkOperation when NNs process getBlocks
> ------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16504
> URL: https://issues.apache.org/jira/browse/HDFS-16504
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer & mover, namanode
> Affects Versions: 3.4.0
> Reporter: Max Xie
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> HDFS-13183 add a nice feature that Standby NameNode can process getBlocks
> request to reduce Active load. Namenode must set `dfs.ha.allow.stale.reads
> = true` to enable this feature. However, if we set `dfs.ha.allow.stale.reads
> = true`, Standby Namenode will be able to process all read requests, which
> may lead to yarn jobs fail because Standby Namenode is stale .
> Maybe we should add a config `dfs.namenode.get-blocks.check.operation=false`
> for namenode to disable check operation when namenode process getBlocks
> request.
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