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Posted to issues@hive.apache.org by "Sankar Hariappan (JIRA)" <ji...@apache.org> on 2018/05/12 17:07:00 UTC
[jira] [Work started] (HIVE-19499) Bootstrap REPL LOAD shall add
tasks to create checkpoints for tables/partitions.
[ https://issues.apache.org/jira/browse/HIVE-19499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HIVE-19499 started by Sankar Hariappan.
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> Bootstrap REPL LOAD shall add tasks to create checkpoints for tables/partitions.
> --------------------------------------------------------------------------------
>
> Key: HIVE-19499
> URL: https://issues.apache.org/jira/browse/HIVE-19499
> Project: Hive
> Issue Type: Sub-task
> Components: HiveServer2, repl
> Affects Versions: 3.0.0
> Reporter: Sankar Hariappan
> Assignee: Sankar Hariappan
> Priority: Major
> Labels: DR, replication
> Fix For: 3.1.0
>
>
> Currently. bootstrap REPL LOAD expect the target database to be empty or not exist to start bootstrap load.
> But, this adds overhead when there is a failure in between bootstrap load and there is no way to resume it from where it fails. So, it is needed to create checkpoints in table/partitions to skip the completely loaded objects.
> Use hash of the fully qualified path of the dump directory as a checkpoint identifier. This should be added to the table / partition properties in hive via a task, as the last task in the DAG for table / partition creation.
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