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https://issues.apache.org/jira/browse/PHOENIX-4893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16607377#comment-16607377
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Thomas D'Silva commented on PHOENIX-4893:
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We call ViewFinder.findRelatedViews() when adding a column to a base table to
validate that if the same column exists in a child view the types etc are the
same. This code can be moved client side.
When we drop a base table we no longer drop child all the child views (whenever
a child view is resolved we resolve the parent and if its doesn't exist we
throw a TableNotFoundException).
When we create a table we need to check if there are any orphaned child views
and drop them, so we call ViewFinder.findRelatedViews().
ViewFinder.findRelatedViews() will also be called to clean up child views of a
parent table that has been dropped (as part of PHOENIX-4764).
> Phoenix scans SYSCAT region from RegionServerCoprocessor
> --------------------------------------------------------
>
> Key: PHOENIX-4893
> URL: https://issues.apache.org/jira/browse/PHOENIX-4893
> Project: Phoenix
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Priority: Major
>
> In a stack trace I see that phoenix.coprocessor.ViewFinder.findRelatedViews()
> scans SYSCAT. With splittable SYSCAT which now involves regions from other
> servers.
> We should really push this to the client now.
> Related to HBASE-21166
> [~tdsilva]
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