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http://jira.amdatu.org/jira/browse/AMDATU-312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivo Ladage - van Doorn updated AMDATU-312:
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Fix Version/s: 0.2.0
(was: 0.1.1)
> Major performance decrease when adding/removing users
> -----------------------------------------------------
>
> Key: AMDATU-312
> URL: http://jira.amdatu.org/jira/browse/AMDATU-312
> Project: Amdatu
> Issue Type: Bug
> Components: Amdatu Cassandra
> Affects Versions: 0.1.1
> Reporter: Ivo Ladage - van Doorn
> Assignee: Ivo Ladage - van Doorn
> Fix For: 0.2.0
>
>
> If you run the JMeter plans in this order, you will find that when you run
> the last plan there is a significant performance slowdown in Cassandra:
> - Amdatu Get Users - 0.1.0.jmx
> - Amdatu UserAdmin - 0.1.0.jmx for some time (i.e. 2 minutes)
> - Amdatu Get Users - 0.1.0.jmx
> Note that at this time there will only be a few users available in UserAdmin,
> still Cassandra queries on the CF Role take a very very long time. Using
> YourKit it seems that all rowkeys of previous users still exist as it is very
> busy with;
> com.google.common.base.Preconditions.checkState(boolean)
> com.google.common.collect.AbstractIterator.hasNext()
> invoked 532000 times from
> org.apache.cassandra.thrift.CassandraServer.get_range_slices(ColumnParent,
> SlicePredicate, KeyRange, ConsistencyLevel)
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