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https://issues.apache.org/jira/browse/UIMA-3638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor updated UIMA-3638:
---------------------------------

    Description: In large UIMA deployments with multiple threads, some 
synchronization contention is detected in RsFullFeatNames and RsLang.  Replace 
with concurrentHashMap, and for RsFullFeatNames - discard the weakpointers to 
keys, which is not much of a hazard - because the tables are relatively small 
vs other memory uses.  (was: In large UIMA deployments with multiple threads, 
some synchronization contention is detected in RsFullFeatNames.  Replace with 
concurrentHashMap, and discard the weakpointers to keys, which is not much of a 
hazard - because the tables are relatively small vs other memory uses.)

> Remove potential sync bottleneck in RsFullFeatNames and RsLang
> --------------------------------------------------------------
>
>                 Key: UIMA-3638
>                 URL: https://issues.apache.org/jira/browse/UIMA-3638
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Core Java Framework
>    Affects Versions: 2.5.0SDK
>            Reporter: Marshall Schor
>            Priority: Minor
>             Fix For: 2.5.1SDK
>
>
> In large UIMA deployments with multiple threads, some synchronization 
> contention is detected in RsFullFeatNames and RsLang.  Replace with 
> concurrentHashMap, and for RsFullFeatNames - discard the weakpointers to 
> keys, which is not much of a hazard - because the tables are relatively small 
> vs other memory uses.



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