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https://issues.apache.org/jira/browse/FLINK-4485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15495940#comment-15495940
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ASF GitHub Bot commented on FLINK-4485:
---------------------------------------

Github user mxm commented on the issue:

    https://github.com/apache/flink/pull/2499
  
    @StephanEwen Yes, it is simple. I just pushed a commit. This now releases 
all temp files after job completion.


> Finished jobs in yarn session fill /tmp filesystem
> --------------------------------------------------
>
>                 Key: FLINK-4485
>                 URL: https://issues.apache.org/jira/browse/FLINK-4485
>             Project: Flink
>          Issue Type: Bug
>          Components: JobManager
>    Affects Versions: 1.1.0
>            Reporter: Niels Basjes
>            Assignee: Maximilian Michels
>            Priority: Blocker
>
> On a Yarn cluster I start a yarn-session with a few containers and task slots.
> Then I fire a 'large' number of Flink batch jobs in sequence against this 
> yarn session. It is the exact same job (java code) yet it gets different 
> parameters.
> In this scenario it is exporting HBase tables to files in HDFS and the 
> parameters are about which data from which tables and the name of the target 
> directory.
> After running several dozen jobs the jobs submission started to fail and we 
> investigated.
> We found that the cause was that on the Yarn node which was hosting the 
> jobmanager the /tmp file system was full (4GB was 100% full).
> How ever the output of {{du -hcs /tmp}} showed only 200MB in use.
> We found that a very large file (we guess it is the jar of the job) was put 
> in /tmp , used, deleted yet the file handle was not closed by the jobmanager.
> As soon as we killed the jobmanager the disk space was freed.
> The summary of the impact of this is that a yarn-session that receives enough 
> jobs brings down the Yarn node for all users.
> See parts of the output we got from {{lsof}} below.
> {code}
> COMMAND     PID      USER   FD      TYPE             DEVICE      SIZE       
> NODE NAME
> java      15034   nbasjes  550r      REG             253,17  66219695        
> 245 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000003 
> (deleted)
> java      15034   nbasjes  551r      REG             253,17  66219695        
> 252 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000007 
> (deleted)
> java      15034   nbasjes  552r      REG             253,17  66219695        
> 267 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000012 
> (deleted)
> java      15034   nbasjes  553r      REG             253,17  66219695        
> 250 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000005 
> (deleted)
> java      15034   nbasjes  554r      REG             253,17  66219695        
> 288 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000018 
> (deleted)
> java      15034   nbasjes  555r      REG             253,17  66219695        
> 298 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000025 
> (deleted)
> java      15034   nbasjes  557r      REG             253,17  66219695        
> 254 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000008 
> (deleted)
> java      15034   nbasjes  558r      REG             253,17  66219695        
> 292 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000019 
> (deleted)
> java      15034   nbasjes  559r      REG             253,17  66219695        
> 275 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000013 
> (deleted)
> java      15034   nbasjes  560r      REG             253,17  66219695        
> 159 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000002 
> (deleted)
> java      15034   nbasjes  562r      REG             253,17  66219695        
> 238 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000001 
> (deleted)
> java      15034   nbasjes  568r      REG             253,17  66219695        
> 246 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000004 
> (deleted)
> java      15034   nbasjes  569r      REG             253,17  66219695        
> 255 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000009 
> (deleted)
> java      15034   nbasjes  571r      REG             253,17  66219695        
> 299 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000026 
> (deleted)
> java      15034   nbasjes  572r      REG             253,17  66219695        
> 293 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000020 
> (deleted)
> java      15034   nbasjes  574r      REG             253,17  66219695        
> 256 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000010 
> (deleted)
> java      15034   nbasjes  575r      REG             253,17  66219695        
> 302 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000029 
> (deleted)
> java      15034   nbasjes  576r      REG             253,17  66219695        
> 294 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000021 
> (deleted)
> java      15034   nbasjes  577r      REG             253,17  66219695        
> 262 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000011 
> (deleted)
> java      15034   nbasjes  578r      REG             253,17  66219695        
> 251 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000006 
> (deleted)
> java      15034   nbasjes  580r      REG             253,17  66219695        
> 295 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000022 
> (deleted)
> java      15034   nbasjes  581r      REG             253,17  66219695        
> 300 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000027 
> (deleted)
> java      15034   nbasjes  582r      REG             253,17  66219695        
> 188 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/cache/blob_e318d1698aa6e7dc91e5f4a9f8ba29781aebd8c4
>  (deleted)
> java      15034   nbasjes  585r      REG             253,17  66219695        
> 279 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000014 
> (deleted)
> java      15034   nbasjes  586r      REG             253,17  66219695        
> 296 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000023 
> (deleted)
> java      15034   nbasjes  588r      REG             253,17  66219695        
> 301 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000028 
> (deleted)
> java      15034   nbasjes  589r      REG             253,17  66219695        
> 297 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000024 
> (deleted)
> java      15034   nbasjes  598r      REG             253,17  66219695        
> 280 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000015 
> (deleted)
> java      15034   nbasjes  601r      REG             253,17  66219695        
> 289 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000016 
> (deleted)
> java      15034   nbasjes  604r      REG             253,17  66219695        
> 284 
> /tmp/blobStore-fbe9c4cf-1f85-48cb-aad9-180e8d4ec7ce/incoming/temp-00000017 
> (deleted)
> {code}



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