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https://issues.apache.org/jira/browse/HDFS-16257?focusedWorklogId=661001&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-661001
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ASF GitHub Bot logged work on HDFS-16257:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Oct/21 15:30
Start Date: 06/Oct/21 15:30
Worklog Time Spent: 10m
Work Description: symious commented on pull request #3524:
URL: https://github.com/apache/hadoop/pull/3524#issuecomment-936503908
@ayushtkn Thanks for the review.
Trunk uses guava from
org.apache.hadoop.thirdparty.hadoop-shaded-guava:1.1.1, the guava cache in it
should have fixed the bug.
Tested with the above dependency, the overhead is eliminated.
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Issue Time Tracking
-------------------
Worklog Id: (was: 661001)
Time Spent: 50m (was: 40m)
> [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver
> -----------------------------------------------------------------------
>
> Key: HDFS-16257
> URL: https://issues.apache.org/jira/browse/HDFS-16257
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.10.1
> Reporter: Janus Chow
> Assignee: Janus Chow
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the
> performance of cache, which was mentioned in HDFS-13821.
> Since upgrading guava version seems affecting too much, this ticket is to add
> a configuration setting when initializing cache to walk around this issue.
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