[jira] [Commented] (FLINK-7220) Update RocksDB dependency to 5.5.1

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-7220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16091697#comment-16091697 ] 

ASF GitHub Bot commented on FLINK-7220:
---------------------------------------

GitHub user StefanRRichter opened a pull request:

    https://github.com/apache/flink/pull/4360

    [FLINK-7220] [checkpoints] Update RocksDB dependency to 5.5.1

    This PR updates the RocksDB dependency to 5.5.1. Further changes:
    
    - the more performant merge operator is used via `setMergeOperatorName("stringappendtest")`.
    - the option `.setDisableDataSync(...)` was removed from RocksDB. Usage is also removed from Flink.

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

    $ git pull https://github.com/StefanRRichter/flink rocksUpdate

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

    https://github.com/apache/flink/pull/4360.patch

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

    This closes #4360
    
----
commit 5071d6da08af84dc7a160ceba7063df7828ee6f8
Author: Stefan Richter <s....@data-artisans.com>
Date:   2017-05-29T09:11:41Z

    WIP

----


> Update RocksDB dependency to 5.5.1
> ----------------------------------
>
>                 Key: FLINK-7220
>                 URL: https://issues.apache.org/jira/browse/FLINK-7220
>             Project: Flink
>          Issue Type: Improvement
>    Affects Versions: 1.4.0, 1.3.2
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
>
> The latest release of RocksDB (5.5.1) fixes the issues from previous versions (slow merge performance, segfaults) in connection with Flink and seems stable for us to use. We can move away from our custom FRocksDB build, back to the latest release.



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