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From "Vladimir Ozerov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-2671) Node cannot join topology when cache lock is held.
Date Thu, 28 Apr 2016 07:47:13 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-2671?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Ozerov updated IGNITE-2671:
------------------------------------
    Fix Version/s:     (was: 1.6)
                   1.7

> Node cannot join topology when cache lock is held.
> --------------------------------------------------
>
>                 Key: IGNITE-2671
>                 URL: https://issues.apache.org/jira/browse/IGNITE-2671
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.5.0.final
>            Reporter: Vladimir Ozerov
>            Priority: Critical
>              Labels: community
>             Fix For: 1.7
>
>
> The problem is originally reported by Mario: http://apache-ignite-users.70518.x6.nabble.com/Semaphore-blocking-on-tryAcquire-while-holding-a-cache-lock-td3031.html
> *Description*
> When a lock is held on a cache key, another node cannot join topology. It hangs somewhere
on partition exchange future.
> *Steps to reproduce*
> Run the following code and observe that ">>> STARTED 2" is never printed because
we cannot leave Ignition.start() method.
> {code}
> public static void main(String[] args) {
>     // Start the first node.
>     Ignite ignite = Ignition.start(new IgniteConfiguration().setGridName("1"));
>     System.out.println(">>> STARTED 1");
>     // Create cache and obtain a lock on it.
>     CacheConfiguration<String, String> ccfg =
>         new CacheConfiguration<String, String>().setAtomicityMode(CacheAtomicityMode.TRANSACTIONAL);
>     ignite.getOrCreateCache(ccfg).lock("key").lock();
>     System.out.println(">>> LOCKED");
>     Ignition.start(new IgniteConfiguration().setGridName("2"));
>     System.out.println(">>> STARTED 2");
> }
> {code}



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