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http://jira.amdatu.org/jira/browse/AMDATUCASSANDRA-51?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivo Ladage - van Doorn resolved AMDATUCASSANDRA-51.
---------------------------------------------------
Assignee: Angelo van der Sijpt (was: Ivo Ladage - van Doorn)
Resolution: Fixed
Ok, thx for this valuable review. Changes:
-1- The map key is now guaranteed unique by using URL encoding and space
separator
-2- The property map does not allow anymore values to be set other then String
and byte[]
-3- The getUser(String key, String value) now evaluates the properties instead
of the credentials for returning the proper
useradmincache/service/CachedDictionary.java
-4- Enhanced the unit test for all of the above and added an additional test
for testing usernames with non-alphanumeric characters
Please retest and review once again
> Major performance decrease when adding/removing users
> -----------------------------------------------------
>
> Key: AMDATUCASSANDRA-51
> URL: http://jira.amdatu.org/jira/browse/AMDATUCASSANDRA-51
> Project: Amdatu Cassandra
> Issue Type: Bug
> Components: Storage implementations
> Affects Versions: 0.1.1
> Reporter: Ivo Ladage - van Doorn
> Assignee: Angelo van der Sijpt
> 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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