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Posted to dev@ignite.apache.org by "Andrey Kuznetsov (JIRA)" <ji...@apache.org> on 2017/08/11 06:32:00 UTC

[jira] [Created] (IGNITE-6043) Fix GridCacheSemaphoreImpl methods semantics

Andrey Kuznetsov created IGNITE-6043:
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             Summary: Fix GridCacheSemaphoreImpl methods semantics
                 Key: IGNITE-6043
                 URL: https://issues.apache.org/jira/browse/IGNITE-6043
             Project: Ignite
          Issue Type: Bug
          Components: data structures
    Affects Versions: 2.1
            Reporter: Andrey Kuznetsov
            Priority: Critical


Current semaphore implementation, {{GridCacheSemaphoreImpl}}, has inverted method semantics: {{acquire()}} releases the permit and {{release()}} acquires it. Also, debug-level method {{availablePermits()}} returns permits acquired so far. This confusing behaviour should be fixed.

Also, it's worth noting in IgniteSemaphore's javadoc it's unbounded nature, as opposed to {{java.util.concurrent.Semaphore}}.



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