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https://issues.apache.org/jira/browse/HBASE-20683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16503336#comment-16503336
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Peter Somogyi commented on HBASE-20683:
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Yes, tool's behavior is not changed, works as before. Do you think it is not a
good idea to return the number of incompatible column families?
Currently we don't use the value just to check if it is zero or not, but later
on we could build a report of all the pre-upgrade validations where this number
could be useful.
> Incorrect return value for PreUpgradeValidator
> ----------------------------------------------
>
> Key: HBASE-20683
> URL: https://issues.apache.org/jira/browse/HBASE-20683
> Project: HBase
> Issue Type: Bug
> Affects Versions: 3.0.0, 2.1.0, 2.0.1
> Reporter: Peter Somogyi
> Assignee: Peter Somogyi
> Priority: Critical
> Attachments: HBASE-20683.master.001.patch,
> HBASE-20683.master.002.patch
>
>
> PreUpgradeValidator currently returns 1 when there is no incompatibilities.
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