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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1555) Add utility to log the serializers of composite types
Date Wed, 18 Feb 2015 12:30:12 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14325820#comment-14325820

ASF GitHub Bot commented on FLINK-1555:

GitHub user rmetzger opened a pull request:


    [FLINK-1555] Add serializer hierarchy debug util


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/rmetzger/flink flink1555

Alternatively you can review and apply these changes as the patch at:


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #415
commit 9e640e520c3120bea32798daf42ee64b10dd8655
Author: Robert Metzger <rmetzger@apache.org>
Date:   2015-02-18T10:39:24Z

    [FLINK-1555] Add serializer hierarchy debug util


> Add utility to log the serializers of composite types
> -----------------------------------------------------
>                 Key: FLINK-1555
>                 URL: https://issues.apache.org/jira/browse/FLINK-1555
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Robert Metzger
>            Priority: Minor
> Users affected by poor performance might want to understand how Flink is serializing
their data.
> Therefore, it would be cool to have a tool utility which logs the serializers like this:
> {{SerializerUtils.getSerializers(TypeInformation<POJO> t);}}
> to get 
> {code}
> PojoSerializer
>     TupleSerializer
>       IntSer
>       DateSer
>       GenericTypeSer(java.sql.Date)
>     PojoSerializer
>       GenericTypeSer(HashMap)
> {code}

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