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https://issues.apache.org/jira/browse/ATLAS-3381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sarath Subramanian resolved ATLAS-3381.
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Resolution: Fixed
> Atlas Patch Handler: Patch Handlers Not Committing Changes
> ----------------------------------------------------------
>
> Key: ATLAS-3381
> URL: https://issues.apache.org/jira/browse/ATLAS-3381
> Project: Atlas
> Issue Type: Bug
> Components: atlas-core
> Affects Versions: 2.0.0, trunk, 3.0.0
> Reporter: Ashutosh Mestry
> Assignee: Ashutosh Mestry
> Priority: Major
> Fix For: 2.1.0, 3.0.0
>
> Attachments:
> ATLAS-3381-Addressed-ConcurrentPatchProcessor-not-ca.patch,
> ATLAS-3381-ClassificationTextPatch.-Improved-conditi.patch
>
>
> ***Background*
> Atlas patch handler is a framework that applies changes made to the structure
> of the data. Latest update to the _ConcurrentPatchProcessor_ is missing the
> commit statement. This causes changes not to get applied.
> *Solution*
> Since _ConcurrentPatchHandler_ uses the _PC_ framework, calling the
> _ConcurrentPatchProcessor_.doCommit after
> _individualItemProcessor.processVertexItem_ will address the problem.
> *Impact*
> The _commit_ is finally called when the data is exhausted, only that until
> then the data is held in memory. This may be OK for really small data but
> does not work for medium to large size data. The result is out of memory
> exception, since _JanusGraph_ holds all these changes in memory waiting for
> commit to be called.
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