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https://issues.apache.org/jira/browse/HBASE-15378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15175481#comment-15175481
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Phil Yang commented on HBASE-15378:
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{quote}
so we dont say hasMoreResults as true?
{quote}
If I am not wrong, hasMoreResultsInRegion means "we have read something and a
non-time limit reached", heartbeat means "no matter how much data we have read,
a time limit reached". So I think time limit has a higher priority and if the
message is a heartbeat message, we don't care if it "hasMoreResultsInRegion" ?
> Scanner can not handle a heartbeat message with no results
> ----------------------------------------------------------
>
> Key: HBASE-15378
> URL: https://issues.apache.org/jira/browse/HBASE-15378
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Phil Yang
> Assignee: Phil Yang
> Priority: Critical
> Attachments: HBASE-15378-v1.txt, HBASE-15378-v2.txt
>
>
> When a RS scanner get a TIME_LIMIT_REACHED_MID_ROW state, they will stop
> scanning and send back what it has read to client and mark the message as a
> heartbeat message. If there is no cell has been read, it will be an empty
> response.
> However, ClientScanner only handles the situation that the client gets an
> empty heartbeat and its cache is not empty. If the cache is empty too, it
> will be regarded as end-of-region and open a new scanner for next region.
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