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From "Madhan Neethiraj (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ATLAS-2652) Data Migration: Export: Type Definition Fails to Export in HA Mode
Date Wed, 16 May 2018 21:26:00 GMT

     [ https://issues.apache.org/jira/browse/ATLAS-2652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Madhan Neethiraj updated ATLAS-2652:
------------------------------------
    Fix Version/s:     (was: 0.8.2)
                       (was: trunk)
                   0.8.3
                   1.0.0

> Data Migration: Export: Type Definition Fails to Export in HA Mode
> ------------------------------------------------------------------
>
>                 Key: ATLAS-2652
>                 URL: https://issues.apache.org/jira/browse/ATLAS-2652
>             Project: Atlas
>          Issue Type: Bug
>          Components:  atlas-core
>    Affects Versions: 0.8.2
>            Reporter: Ashutosh Mestry
>            Assignee: Ashutosh Mestry
>            Priority: Major
>             Fix For: 1.0.0, 0.8.3
>
>         Attachments: ATLAS-2652-Export-in-HA-mode.patch
>
>
> *Pre-requisites*
> Setup a multi-node cluster such that high availability (HA) mode is enabled. This will
mean that Atlas server is present on more than 1 node.
> In _atlas-application.properties_, note that the _atlas.server.ha.enabled_ is set to
_true_.
> Add some data to Atlas repository, either via Import or by creating tables within Hive.
> *Steps to Reproduce*
>  * Stop Atlas via Ambari.
>  * Start the migration using _atlas_migration_export.py -d ~/atlas-data_
> Expected results: Both the JSON files generated should contain data.
> Actual results: _atlas-migration-typesdef.json_ does not contain data.
> The _atlas-migration-exporter.log_ shows a message _'AtlasTypeDefStoreInitializer.init():
deferring type loading until instance activation'_.
> *Root Cause*
> In HA mode, the Atlas type system is initialized only when the active node.
>  



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