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Bug
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Resolution: Unresolved
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Major
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None
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None
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None
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2017 Week 49-50, 2017 Week 51-52, 2018 Week 01-02, 2018 Week 03-04, 2018 Week 05-06
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NEW
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NEW
Any operation in business-central, eg. trying to access the Authoring -> Project Authoring or Administration option takes minutes to finish. When temporarily changing the location -Dorg.uberfire.nio.git.dir=/opt/data/jbpm-wb-git to local file system location other than gluster volume the response times were normal.
The gluster log shows in a 70 second period that 175971 LOOKUPs are being done for files which don't exist:
[root ~]# grep LOOKUP /var/log/glusterfs/bricks/jbpm-data.log | cut -f 2 -d P | cut -f 2 -d ' ' | grep -v scheduled | sort | uniq -c 23844 /jbpm-wb-git/.niogit/my-poc.git/master 23833 /jbpm-wb-git/.niogit/my-poc.git/refs/heads/master 23844 /jbpm-wb-git/.niogit/my-poc.git/refs/master 23840 /jbpm-wb-git/.niogit/my-poc.git/refs/tags/master 6312 /jbpm-wb-git/.niogit/my-poc.git/shallow 360 /jbpm-wb-git/.niogit/system.git/locks 16770 /jbpm-wb-git/.niogit/system.git/master 348 /jbpm-wb-git/.niogit/system.git/refs/da68722-uf-user 360 /jbpm-wb-git/.niogit/system.git/refs/heads/locks 16791 /jbpm-wb-git/.niogit/system.git/refs/heads/master 360 /jbpm-wb-git/.niogit/system.git/refs/locks 16773 /jbpm-wb-git/.niogit/system.git/refs/master 360 /jbpm-wb-git/.niogit/system.git/refs/remotes 360 /jbpm-wb-git/.niogit/system.git/refs/tags/locks 16776 /jbpm-wb-git/.niogit/system.git/refs/tags/master 4336 /jbpm-wb-git/.niogit/system.git/shallow [root ~]# grep LOOKUP /var/log/glusterfs/bricks/jbpm-data.log | cut -f 2 -d P | cut -f 2 -d ' ' | grep -v scheduled | sort | wc -l 175971
From the Gluster side, the recommended approach to address this is to enable "negative lookup caching" to prevent recurring access to files that do not exist to go through the whole filesystem.
The aim of this ticket is to investigate if anything can be done from the uberfire / JGit side to prevent such a huge number of lookups to happen.
- clones
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- Closed
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