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https://issues.apache.org/jira/browse/HBASE-20683?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16503348#comment-16503348
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Chia-Ping Tsai commented on HBASE-20683:
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{quote}Do you think it is not a good idea to return the number of incompatible
column families?
{quote}
Returning the number of incompatible column families makes sense to me. I
didn't review the patch by the IDE so I misunderstand the purpose of the patch.
(I assumed the patch is used to the enhance or fix the tool...)
{quote}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.
{quote}
+1 on your idea and patch.
> 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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