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https://issues.apache.org/jira/browse/HBASE-21860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16763835#comment-16763835
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stack commented on HBASE-21860:
-------------------------------
+1 from me. Should go back to branch-2.0 right [~wchevreuil]?
> WALFactory should switch to default provider if multiwal provider is defined
> for meta wal (Per suggestions on HBASE-21843)
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-21860
> URL: https://issues.apache.org/jira/browse/HBASE-21860
> Project: HBase
> Issue Type: Task
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Major
> Attachments: HBASE-21860.master.001.patch
>
>
> Following discussions on HBASE-21843, one of the suggestion was to make wal
> provider for meta wal switch to default provider if multi wal is defined as
> the target provider. Quoting [~busbey]:
> {quote}
> I don't think it's a good idea to revert HBASE-20856. the principles of that
> issue are still sound.
> We already have logic somewhere for the AsyncDFS based WAL that falls back to
> the default if something goes wrong with the needed HDFS hooks. Can we do
> something similar for the region grouping provider and make the check
> something like "did you ask for a provider for meta"?
> {quote}
> Am uploading a patch that switches to default whenever WALFactory finds
> multiwal provider is defined for meta wal (either explicitly by defining
> "hbase.wal.meta_provider", or indirectly, by loading what is in
> "hbase.wal.provider")
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