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https://issues.apache.org/jira/browse/HDFS-16638?focusedWorklogId=787397&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-787397
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ASF GitHub Bot logged work on HDFS-16638:
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Author: ASF GitHub Bot
Created on: 03/Jul/22 11:26
Start Date: 03/Jul/22 11:26
Worklog Time Spent: 10m
Work Description: ayushtkn commented on PR #4480:
URL: https://github.com/apache/hadoop/pull/4480#issuecomment-1173063972
Well I didn't expect it to be that better as the above result shows, but I
don't think concat will be having a Zero overhead anyway, if the code path is
critical and something called at very high frequency, even small improvements
can help.
I am ok with this change, but if others feels it isn't good enough to get it
in or would have negligible impact. I am fine avoiding it as well, not
something that critical....
Issue Time Tracking
-------------------
Worklog Id: (was: 787397)
Time Spent: 2h (was: 1h 50m)
> Add isDebugEnabled check for debug blockLogs in BlockManager
> ------------------------------------------------------------
>
> Key: HDFS-16638
> URL: https://issues.apache.org/jira/browse/HDFS-16638
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: dzcxzl
> Priority: Trivial
> Labels: pull-request-available
> Time Spent: 2h
> Remaining Estimate: 0h
>
> There are lots of concatenating Strings using blockLog.debug in BlockManager.
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