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https://issues.apache.org/jira/browse/FLINK-4485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Maximilian Michels reassigned FLINK-4485:
-----------------------------------------
Assignee: Maximilian Michels
> 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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