[infinispan-issues] [JBoss JIRA] Created: (ISPN-1244) Cache loses data when another CacheManager joins a cluster

[Alex Heneveld (JIRA)]

Cache loses data when another CacheManager joins a cluster
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                 Key: ISPN-1244
                 URL: https://issues.jboss.org/browse/ISPN-1244
             Project: Infinispan
          Issue Type: Bug
          Components: Distributed Cache
    Affects Versions: 5.0.0.CR7
         Environment: single machine (Mac is my case)
            Reporter: Alex Heneveld
            Assignee: Manik Surtani


I have a test (below) which creates a CacheManager and Cache, sets a value, waits a bit, creates another CacheManager and Cache, then tries to get the value from the first cache.  Only it gets null instead -- from both caches!

Am new to Infinispan but discussed with Sanne who recommended to file as a bug.

Originally discussed in community forum [here|http://community.jboss.org/message/615497].

{code}
    public void bug() throws InterruptedException {
        EmbeddedCacheManager cm1 = newCM();
        Cache c1 = cm1.getCache("x");
        c1.put("key", "value");
        Thread.sleep(3000);
        EmbeddedCacheManager cm2 = newCM();
        System.out.println(c1.get("key"));  //always says "value"
        Cache c2 = cm2.getCache("x");
        System.out.println(c1.get("key"));  //says null sometimes
        assert c1.get("key") != null : "value at cache 1 was lost";        
        cm1.stop();
        cm2.stop();
    }

    public EmbeddedCacheManager newCM() {
        GlobalConfiguration gc = GlobalConfiguration.getClusteredDefault();
        Configuration cfg = new Configuration().fluent()
            .mode(Configuration.CacheMode.DIST_SYNC)
            .hash().numOwners(1)
            .clustering().l1().disable()
            .build();
        return new DefaultCacheManager(gc, cfg);
    }        
{code}

(BTW changing to REPL_SYNC, or numOwners(2), it works fine.)


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