[ 
https://issues.apache.org/jira/browse/IGNITE-3312?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ivan Veselovsky updated IGNITE-3312:
------------------------------------
    Description: 
HadoopMapReduceEmbeddedSelfTest.testMultiReducerWholeMapReduceExecution fails 
with ~20% probability . 
Failure cause is either the 1st or 2nd marked line in the following code 
(org.apache.ignite.internal.processors.igfs.IgfsMetaManager#create) :
{code}
                            // Check: can we overwrite it?
                            if (!overwrite)
                                throw new 
IgfsPathAlreadyExistsException("Failed to create a file: " + path); // ***** #1

                            // Check if file already opened for write.
                            if (oldInfo.lockId() != null)
                                throw new IgfsException("File is already opened 
for write: " + path); // ***** #2
{code}

Diagnostic shows that the same file really attempted to be created several 
times on one thread.

Situation #2 reproducible with the following stack when IGFS is used as a 
secondary fs:
{code}
Hadoop-task-efea2ae1-09cb-4c49-9465-dcbbedee1835_1-REDUCE-2-0-#679%hadoop.HadoopMapReduceEmbeddedSelfTest2%@20675,
 prio=5, in group 'ignite', status: 'RUNNING'
          at 
org.apache.ignite.internal.processors.igfs.IgfsMetaManager.create(IgfsMetaManager.java:2857)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1051)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1019)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.safeOp(IgfsImpl.java:1823)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.create0(IgfsImpl.java:1019)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.create(IgfsImpl.java:990)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:359)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:357)
          at 
org.apache.ignite.igfs.IgfsUserContext.doAs(IgfsUserContext.java:49)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc.create(HadoopIgfsInProc.java:357)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:258)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:255)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.withReconnectHandling(HadoopIgfsWrapper.java:310)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.create(HadoopIgfsWrapper.java:255)
          at 
org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem.create(IgniteHadoopFileSystem.java:632)
          at 
org.apache.ignite.hadoop.fs.IgniteHadoopIgfsSecondaryFileSystem.create(IgniteHadoopIgfsSecondaryFileSystem.java:406)
          at 
org.apache.ignite.internal.processors.igfs.IgfsSecondaryFileSystemCreateContext.create(IgfsSecondaryFileSystemCreateContext.java:87)
          at 
org.apache.ignite.internal.processors.igfs.IgfsMetaManager.create(IgfsMetaManager.java:2922)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1051)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1019)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.safeOp(IgfsImpl.java:1823)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.create0(IgfsImpl.java:1019)
          at 
org.apache.ignite.internal.processors.igfs.IgfsImpl.create(IgfsImpl.java:990)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:359)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:357)
          at 
org.apache.ignite.igfs.IgfsUserContext.doAs(IgfsUserContext.java:54)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc.create(HadoopIgfsInProc.java:357)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:258)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:255)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.withReconnectHandling(HadoopIgfsWrapper.java:310)
          at 
org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.create(HadoopIgfsWrapper.java:255)
          at 
org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem.create(IgniteHadoopFileSystem.java:632)
          at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:906)
          at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:799)
          at 
org.apache.hadoop.mapred.TextOutputFormat.getRecordWriter(TextOutputFormat.java:123)
          at 
org.apache.ignite.internal.processors.hadoop.v1.HadoopV1OutputCollector.<init>(HadoopV1OutputCollector.java:68)
          at 
org.apache.ignite.internal.processors.hadoop.v1.HadoopV1Task$1.<init>(HadoopV1Task.java:73)
          at 
org.apache.ignite.internal.processors.hadoop.v1.HadoopV1Task.collector(HadoopV1Task.java:72)
          at 
org.apache.ignite.internal.processors.hadoop.v1.HadoopV1ReduceTask.run(HadoopV1ReduceTask.java:65)
          at 
org.apache.ignite.internal.processors.hadoop.v2.HadoopV2TaskContext.run(HadoopV2TaskContext.java:249)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.runTask(HadoopRunnableTask.java:201)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call0(HadoopRunnableTask.java:144)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask$1.call(HadoopRunnableTask.java:116)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask$1.call(HadoopRunnableTask.java:114)
          at 
org.apache.ignite.internal.processors.hadoop.v2.HadoopV2TaskContext.runAsJobOwner(HadoopV2TaskContext.java:544)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call(HadoopRunnableTask.java:114)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call(HadoopRunnableTask.java:46)
          at 
org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopExecutorService$2.body(HadoopExecutorService.java:186)
          at 
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
          at java.lang.Thread.run(Thread.java:745)

{code}

  was:
HadoopMapReduceEmbeddedSelfTest.testMultiReducerWholeMapReduceExecution fails 
with ~20% probability . 
Failure cause is either the 1st or 2nd marked line in the following code 
(org.apache.ignite.internal.processors.igfs.IgfsMetaManager#create) :
{code}
                            // Check: can we overwrite it?
                            if (!overwrite)
                                throw new 
IgfsPathAlreadyExistsException("Failed to create a file: " + path); // ***** #1

                            // Check if file already opened for write.
                            if (oldInfo.lockId() != null)
                                throw new IgfsException("File is already opened 
for write: " + path); // ***** #2
{code}

Diagnostic shows that the same file really attempted to be created several 
times on one thread.


> [Test] 
> HadoopMapReduceEmbeddedSelfTest.testMultiReducerWholeMapReduceExecution 
> flakily fails.
> ---------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-3312
>                 URL: https://issues.apache.org/jira/browse/IGNITE-3312
>             Project: Ignite
>          Issue Type: Bug
>          Components: IGFS
>            Reporter: Ivan Veselovsky
>            Assignee: Ivan Veselovsky
>              Labels: test
>
> HadoopMapReduceEmbeddedSelfTest.testMultiReducerWholeMapReduceExecution fails 
> with ~20% probability . 
> Failure cause is either the 1st or 2nd marked line in the following code 
> (org.apache.ignite.internal.processors.igfs.IgfsMetaManager#create) :
> {code}
>                             // Check: can we overwrite it?
>                             if (!overwrite)
>                                 throw new 
> IgfsPathAlreadyExistsException("Failed to create a file: " + path); // ***** 
> #1
>                             // Check if file already opened for write.
>                             if (oldInfo.lockId() != null)
>                                 throw new IgfsException("File is already 
> opened for write: " + path); // ***** #2
> {code}
> Diagnostic shows that the same file really attempted to be created several 
> times on one thread.
> Situation #2 reproducible with the following stack when IGFS is used as a 
> secondary fs:
> {code}
> Hadoop-task-efea2ae1-09cb-4c49-9465-dcbbedee1835_1-REDUCE-2-0-#679%hadoop.HadoopMapReduceEmbeddedSelfTest2%@20675,
>  prio=5, in group 'ignite', status: 'RUNNING'
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsMetaManager.create(IgfsMetaManager.java:2857)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1051)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1019)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.safeOp(IgfsImpl.java:1823)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.create0(IgfsImpl.java:1019)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.create(IgfsImpl.java:990)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:359)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:357)
>           at 
> org.apache.ignite.igfs.IgfsUserContext.doAs(IgfsUserContext.java:49)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc.create(HadoopIgfsInProc.java:357)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:258)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:255)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.withReconnectHandling(HadoopIgfsWrapper.java:310)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.create(HadoopIgfsWrapper.java:255)
>           at 
> org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem.create(IgniteHadoopFileSystem.java:632)
>           at 
> org.apache.ignite.hadoop.fs.IgniteHadoopIgfsSecondaryFileSystem.create(IgniteHadoopIgfsSecondaryFileSystem.java:406)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsSecondaryFileSystemCreateContext.create(IgfsSecondaryFileSystemCreateContext.java:87)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsMetaManager.create(IgfsMetaManager.java:2922)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1051)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl$15.call(IgfsImpl.java:1019)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.safeOp(IgfsImpl.java:1823)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.create0(IgfsImpl.java:1019)
>           at 
> org.apache.ignite.internal.processors.igfs.IgfsImpl.create(IgfsImpl.java:990)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:359)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc$15.apply(HadoopIgfsInProc.java:357)
>           at 
> org.apache.ignite.igfs.IgfsUserContext.doAs(IgfsUserContext.java:54)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsInProc.create(HadoopIgfsInProc.java:357)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:258)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper$15.apply(HadoopIgfsWrapper.java:255)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.withReconnectHandling(HadoopIgfsWrapper.java:310)
>           at 
> org.apache.ignite.internal.processors.hadoop.igfs.HadoopIgfsWrapper.create(HadoopIgfsWrapper.java:255)
>           at 
> org.apache.ignite.hadoop.fs.v1.IgniteHadoopFileSystem.create(IgniteHadoopFileSystem.java:632)
>           at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:906)
>           at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:799)
>           at 
> org.apache.hadoop.mapred.TextOutputFormat.getRecordWriter(TextOutputFormat.java:123)
>           at 
> org.apache.ignite.internal.processors.hadoop.v1.HadoopV1OutputCollector.<init>(HadoopV1OutputCollector.java:68)
>           at 
> org.apache.ignite.internal.processors.hadoop.v1.HadoopV1Task$1.<init>(HadoopV1Task.java:73)
>           at 
> org.apache.ignite.internal.processors.hadoop.v1.HadoopV1Task.collector(HadoopV1Task.java:72)
>           at 
> org.apache.ignite.internal.processors.hadoop.v1.HadoopV1ReduceTask.run(HadoopV1ReduceTask.java:65)
>           at 
> org.apache.ignite.internal.processors.hadoop.v2.HadoopV2TaskContext.run(HadoopV2TaskContext.java:249)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.runTask(HadoopRunnableTask.java:201)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call0(HadoopRunnableTask.java:144)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask$1.call(HadoopRunnableTask.java:116)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask$1.call(HadoopRunnableTask.java:114)
>           at 
> org.apache.ignite.internal.processors.hadoop.v2.HadoopV2TaskContext.runAsJobOwner(HadoopV2TaskContext.java:544)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call(HadoopRunnableTask.java:114)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopRunnableTask.call(HadoopRunnableTask.java:46)
>           at 
> org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopExecutorService$2.body(HadoopExecutorService.java:186)
>           at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>           at java.lang.Thread.run(Thread.java:745)
> {code}



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