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[jira] [Created] (ATLAS-2652) Data Migration: Export: Type Definition Fails to Export in HA Mode


Ashutosh Mestry created ATLAS-2652:
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             Summary: 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
             Fix For: 0.8.2


*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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