[ https://issues.apache.org/jira/browse/ATLAS-2460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashutosh Mestry updated ATLAS-2460: ----------------------------------- Attachment: ATLAS-2460-GraphSON-Migration-6.patch > Data Migration: Moving Data from Earlier Versions of Atlas to Most Recent > ------------------------------------------------------------------------- > > Key: ATLAS-2460 > URL: https://issues.apache.org/jira/browse/ATLAS-2460 > Project: Atlas > Issue Type: Improvement > Components: atlas-core > Affects Versions: trunk > Reporter: Ashutosh Mestry > Assignee: Ashutosh Mestry > Priority: Major > Attachments: ATLAS-2460-GraphSON-Migration-6.patch, > ATLAS-2460-HA-Mode-fix.patch > > > *Background* > The most recent version of Atlas uses _JanusGraph_ as database. Earlier > versions used to use _Titan v0.5.4_. The formats used for storing data have > changed. > The current version of Atlas also implement features within Atlas entities. > This makes the storages structures differ. > A data migration approach thus becomes necessary to address the format > incompatibilities. > *Approach* > Earlier version of Atlas could use _Export_ process to extract data out of > the _Titan_ database. This ZIP file would then be moved to a cluster with > newer version of Atlas installed. An _Import_ process on the new cluster > would update the new cluster with data migrated to the new format. > It should be possible for _Data Migration_ to be initiated from Ambari, so > that it becomes part of the Ambari's upgrade process. > It should also be possible to see the status of the migration as it > progresses. During the process, no hook messages should be processed or any > notifications sent out. -- This message was sent by Atlassian JIRA (v7.6.3#76005)