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From "Julien Vaudour (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14219) RumenToSLS: parsing problem with crashed attempts
Date Fri, 24 Mar 2017 11:54:41 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14219?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Julien Vaudour updated HADOOP-14219:
------------------------------------
    Status: Patch Available  (was: Open)

> RumenToSLS: parsing problem with crashed attempts
> -------------------------------------------------
>
>                 Key: HADOOP-14219
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14219
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 2.6.0
>            Reporter: Julien Vaudour
>            Priority: Minor
>         Attachments: HADOOP-14219.patch
>
>
> In case of crashed task attempts, we may have in rumen logs task attempts with null hostName
and finishTime defined to -1
> for example
> {code}
>        {
>           "resourceUsageMetrics": {
>             "heapUsage": 0,
>             "physicalMemoryUsage": 0,
>             "virtualMemoryUsage": 0,
>             "cumulativeCpuUsage": 0
>           },
>           "vmemKbytes": [],
>           "physMemKbytes": [],
>           "cpuUsages": [],
>           "clockSplits": [],
>           "location": null,
>           "sortFinished": -1,
>           "shuffleFinished": -1,
>           "spilledRecords": -1,
>           "reduceOutputRecords": -1,
>           "reduceShuffleBytes": -1,
>           "fileBytesRead": -1,
>           "hdfsBytesWritten": -1,
>           "hdfsBytesRead": -1,
>           "hostName": null,
>           "finishTime": -1,
>           "startTime": 1489619193378,
>           "result": null,
>           "attemptID": "attempt_1488896259152_410442_r_000015_1",
>           "fileBytesWritten": -1,
>           "mapInputRecords": -1,
>           "mapInputBytes": -1,
>           "mapOutputBytes": -1,
>           "mapOutputRecords": -1,
>           "combineInputRecords": -1,
>           "reduceInputGroups": -1,
>           "reduceInputRecords": -1
>         }
> {code}
> Jackson parser will automatically consider -1 as a java.lang.Integer. However RumenToSLSConverter
make the assumption than jackson has deserialize all timstamp as instance of java.lang.Long,
resulting in a ClassCastException.
> RumenToSLSConverter also make the assumption that hostName is not null, so we can also
have a NullPointerException.



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