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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-2104) Loss of data in GraphDB when upgrading Falcon from 0.9 to 0.10.
Date Tue, 02 Aug 2016 09:50:20 GMT

    [ https://issues.apache.org/jira/browse/FALCON-2104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15403691#comment-15403691

ASF GitHub Bot commented on FALCON-2104:

GitHub user bvellanki opened a pull request:


    FALCON-2104 Loss of data in GraphDB when upgrading Falcon 0.9 to 0.10


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

    $ git pull https://github.com/bvellanki/falcon FALCON-2104

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 #253
commit d27363744d373cdf171afdff16eb92216c37c314
Author: bvellanki <bvellanki@hortonworks.com>
Date:   2016-08-02T09:45:49Z

    FALCON-2104 Loss of data in GraphDB when upgrading Falcon from 0.9 to 0.10


> Loss of data in GraphDB when upgrading Falcon from 0.9 to 0.10. 
> ----------------------------------------------------------------
>                 Key: FALCON-2104
>                 URL: https://issues.apache.org/jira/browse/FALCON-2104
>             Project: Falcon
>          Issue Type: Bug
>    Affects Versions: 0.10
>            Reporter: Balu Vellanki
>            Assignee: Venkat Ranganathan
>            Priority: Critical
>             Fix For: trunk, 0.10
>         Attachments: FALCON-2104.patch-v0.10, FALCON-2104.patch-v0.9
>   Original Estimate: 48h
>  Remaining Estimate: 48h
> FALCON-1333 (Instance Search feature) requires Falcon to use titan-berkeleyje version
0.5.4 to support indexing. Up until version 0.9 - Falcon used   titan-berkeleyje-jre6 version
0.4.2.  GraphDB created by version 0.4.2 cannot be read by version 0.5.4. When attempting
an upgrade, I realized that entity and instance lineage data created in 0.9 version could
not be read by Falcon in 0.10 version. 
> The only solution seems to provide a tool to do the following
> - Use 0.4.2 version of titan-berkeleyje-jre6 to read the berkeleyDB based graphDB and
create a JSON file with all data.
> - shutdown falcon-0.9, upgrade Falcon.
> - use 0.5.4 version of titan-berkeleyje to read JSON file and repopulate berkeleyDB based
> - restart falcon-0.10
> I will work on the tool, and update release-notes, upgrade instructions accordingly.

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