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https://issues.apache.org/jira/browse/IGNITE-3922?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ivan Veselovsky updated IGNITE-3922:
------------------------------------
    Summary: IGFS: test 
org.apache.ignite.internal.processors.igfs.IgfsTaskSelfTest hangs on WiFi 
network  (was: IGFS: test 
org.apache.ignite.internal.processors.igfs.IgfsTaskSelfTest hangs on WiFi 
newtwork)

> IGFS: test org.apache.ignite.internal.processors.igfs.IgfsTaskSelfTest hangs 
> on WiFi network
> --------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-3922
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3922
>             Project: Ignite
>          Issue Type: Bug
>          Components: IGFS
>    Affects Versions: 1.7
>            Reporter: Ivan Veselovsky
>            Assignee: Ivan Veselovsky
>             Fix For: 1.8
>
>
> The following 2 tests frequently hang:
> org.apache.ignite.internal.processors.igfs.IgfsTaskSelfTest#testTask
> org.apache.ignite.internal.processors.igfs.IgfsTaskSelfTest#testTaskAsync
> Also that happens on public TC.
> Thread dump does not show any specific reasoon of stuck, but it frequently 
> contauns sttack like this:
> Thread [name="test-runner-#298%igfs.IgfsTaskSelfTest%", id=364, 
> state=RUNNABLE, blockCnt=14, waitCnt=25]
>         at java.net.Inet6AddressImpl.getHostByAddr(Native Method)
>         at java.net.InetAddress$1.getHostByAddr(InetAddress.java:905)
>         at java.net.InetAddress.getHostFromNameService(InetAddress.java:590)
>         at java.net.InetAddress.getHostName(InetAddress.java:532)
>         at java.net.InetAddress.getHostName(InetAddress.java:504)
>         at 
> o.a.i.i.processors.igfs.IgfsBlockLocationImpl.convertFromNodes(IgfsBlockLocationImpl.java:304)
>         at 
> o.a.i.i.processors.igfs.IgfsBlockLocationImpl.<init>(IgfsBlockLocationImpl.java:101)
>         at 
> o.a.i.i.processors.igfs.IgfsDataManager.splitBlocks(IgfsDataManager.java:895)
>         at 
> o.a.i.i.processors.igfs.IgfsDataManager.affinity0(IgfsDataManager.java:862)
>         at 
> o.a.i.i.processors.igfs.IgfsDataManager.affinity(IgfsDataManager.java:738)
>         at o.a.i.i.processors.igfs.IgfsImpl$18.call(IgfsImpl.java:1216)
>         at o.a.i.i.processors.igfs.IgfsImpl$18.call(IgfsImpl.java:1191)
>         at o.a.i.i.processors.igfs.IgfsImpl.safeOp(IgfsImpl.java:1679)
>         at o.a.i.i.processors.igfs.IgfsImpl.affinity(IgfsImpl.java:1191)
>         at o.a.i.igfs.mapreduce.IgfsTask.map(IgfsTask.java:116)
>         at o.a.i.igfs.mapreduce.IgfsTask.map(IgfsTask.java:85)
>         at 
> o.a.i.i.processors.task.GridTaskWorker$2.call(GridTaskWorker.java:519)
>         at 
> o.a.i.i.processors.task.GridTaskWorker$2.call(GridTaskWorker.java:517)
>         at o.a.i.i.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6509)
>         at 
> o.a.i.i.processors.task.GridTaskWorker.body(GridTaskWorker.java:516)
>         at o.a.i.i.util.worker.GridWorker.run(GridWorker.java:110)
>         at 
> o.a.i.i.processors.task.GridTaskProcessor.startTask(GridTaskProcessor.java:678)
>         at 
> o.a.i.i.processors.task.GridTaskProcessor.execute(GridTaskProcessor.java:403)
>         at 
> o.a.i.i.processors.task.GridTaskProcessor.execute(GridTaskProcessor.java:385)
>         at o.a.i.i.processors.igfs.IgfsImpl.executeAsync(IgfsImpl.java:1446)
>         at o.a.i.i.processors.igfs.IgfsImpl.executeAsync(IgfsImpl.java:1427)
>         at o.a.i.i.processors.igfs.IgfsImpl.execute(IgfsImpl.java:1375)
>         at 
> o.a.i.i.processors.igfs.IgfsTaskSelfTest.testTask(IgfsTaskSelfTest.java:171)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:606)
>         at junit.framework.TestCase.runTest(TestCase.java:176)
>         at 
> o.a.i.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:1760)
>         at 
> o.a.i.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:118)
>         at 
> o.a.i.testframework.junits.GridAbstractTest$4.run(GridAbstractTest.java:1698)
>         at java.lang.Thread.run(Thread.java:745)
> measurements of method 
> org.apache.ignite.internal.processors.igfs.IgfsBlockLocationImpl#convertFromNodes
>  ,
> duration show the following:
> : 
> ...
> convertFromNodes Took: 39 ms
> convertFromNodes Took: 34 ms
> convertFromNodes Took: 40 ms
> convertFromNodes Took: 32 ms
> convertFromNodes Took: 39 ms
> convertFromNodes Took: 32 ms
> convertFromNodes Took: 32 ms
> convertFromNodes Took: 37 ms
> convertFromNodes Took: 31 ms
> convertFromNodes Took: 31 ms
> convertFromNodes Took: 5067 ms
> convertFromNodes Took: 33 ms
> convertFromNodes Took: 31 ms
> convertFromNodes Took: 137 ms
> convertFromNodes Took: 33 ms
> convertFromNodes Took: 30 ms
> convertFromNodes Took: 41 ms
> convertFromNodes Took: 35 ms
> convertFromNodes Took: 136 ms
> convertFromNodes Took: 71 ms
> convertFromNodes Took: 5037 ms
> convertFromNodes Took: 15056 ms
> convertFromNodes Took: 37 ms
> That is, addresses calculation sometimes takes as long as 15 seconds.
> Simple caching of the addresses proven to fix the issue.



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