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https://issues.apache.org/jira/browse/IGNITE-5196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16040319#comment-16040319
 ] 

Semen Boikov edited comment on IGNITE-5196 at 6/7/17 6:52 AM:
--------------------------------------------------------------

Please always merge from master before sending for review. 
And your test fails, please fix:
{noformat}
09:49:53,590][ERROR][main][root] Test failed.
org.apache.ignite.cache.CacheExistsException: Failed to start cache (a cache 
with the same name is already started): cache0
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheChangeRequest(GridCacheProcessor.java:3647)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.dynamicStartCache(GridCacheProcessor.java:2480)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.dynamicStartCache(GridCacheProcessor.java:2419)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.createFromTemplate(GridCacheProcessor.java:2280)
        at 
org.apache.ignite.internal.IgniteKernal.createCache(IgniteKernal.java:2780)
        at 
org.apache.ignite.internal.ClusterGroupSelfTest$3.run(ClusterGroupSelfTest.java:331)
        at 
org.apache.ignite.testframework.GridTestUtils$9.call(GridTestUtils.java:1208)
        at 
org.apache.ignite.testframework.GridTestThread.run(GridTestThread.java:86)
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache12
                ... 8 more
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache8
                ... 8 more
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache4
                ... 8 more
{noformat}



was (Author: sboikov):
Test fails:
{noformat}
09:49:53,590][ERROR][main][root] Test failed.
org.apache.ignite.cache.CacheExistsException: Failed to start cache (a cache 
with the same name is already started): cache0
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.prepareCacheChangeRequest(GridCacheProcessor.java:3647)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.dynamicStartCache(GridCacheProcessor.java:2480)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.dynamicStartCache(GridCacheProcessor.java:2419)
        at 
org.apache.ignite.internal.processors.cache.GridCacheProcessor.createFromTemplate(GridCacheProcessor.java:2280)
        at 
org.apache.ignite.internal.IgniteKernal.createCache(IgniteKernal.java:2780)
        at 
org.apache.ignite.internal.ClusterGroupSelfTest$3.run(ClusterGroupSelfTest.java:331)
        at 
org.apache.ignite.testframework.GridTestUtils$9.call(GridTestUtils.java:1208)
        at 
org.apache.ignite.testframework.GridTestThread.run(GridTestThread.java:86)
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache12
                ... 8 more
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache8
                ... 8 more
        Suppressed: org.apache.ignite.cache.CacheExistsException: Failed to 
start cache (a cache with the same name is already started): cache4
                ... 8 more
{noformat}


> Concurrent modification in .GridDiscoveryManager.nodeCaches
> -----------------------------------------------------------
>
>                 Key: IGNITE-5196
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5196
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Yakov Zhdanov
>            Assignee: Igor Seliverstov
>             Fix For: 2.1
>
>
> {noformat}
> ./grid149.tar.gz:org.apache.ignite.IgniteCheckedException: null
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.util.IgniteUtils.cast(IgniteUtils.java:7281) 
> ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.GridRestProcessor$2.body(GridRestProcessor.java:171)
>  [ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110) 
> [ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>  [na:1.8.0_121]
> ./grid149.tar.gz:       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>  [na:1.8.0_121]
> ./grid149.tar.gz:       at java.lang.Thread.run(Thread.java:745) 
> [na:1.8.0_121]
> ./grid149.tar.gz:Caused by: java.util.ConcurrentModificationException: null
> ./grid149.tar.gz:       at 
> java.util.HashMap$HashIterator.nextNode(HashMap.java:1437) ~[na:1.8.0_121]
> ./grid149.tar.gz:       at 
> java.util.HashMap$EntryIterator.next(HashMap.java:1471) ~[na:1.8.0_121]
> ./grid149.tar.gz:       at 
> java.util.HashMap$EntryIterator.next(HashMap.java:1469) ~[na:1.8.0_121]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager.nodeCaches(GridDiscoveryManager.java:1733)
>  ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.handlers.top.GridTopologyCommandHandler.createNodeBean(GridTopologyCommandHandler.java:219)
>  ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHO
> T]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.handlers.top.GridTopologyCommandHandler.handleAsync(GridTopologyCommandHandler.java:109)
>  ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.GridRestProcessor.handleRequest(GridRestProcessor.java:265)
>  ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.GridRestProcessor.access$100(GridRestProcessor.java:88)
>  ~[ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       at 
> org.apache.ignite.internal.processors.rest.GridRestProcessor$2.body(GridRestProcessor.java:154)
>  [ignite-core-1.10.3.ea6.jar:2.0.0-SNAPSHOT]
> ./grid149.tar.gz:       ... 4 common frames omitted
> {noformat}



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