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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HBASE-17095) The ClientSimpleScanner keeps retrying if the hfile is corrupt or cannot found
Date Thu, 17 Nov 2016 06:31:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15672921#comment-15672921
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Anoop Sam John edited comment on HBASE-17095 at 11/17/16 6:30 AM:
------------------------------------------------------------------

So we throw back CorruptedHFileException or FNFE back to client now so that we dont end up
throwing ScannerResetException.  It will be better if u can create a new HBase specific exception,
extending DNRIOE for the HFile not found case.  Being more generic and checking all possible
cases, am ok we can do in another issue
Else +1


was (Author: anoop.hbase):
So we throw back CorruptedHFileException or FNFE back to client now so that we dont end up
throwing ScannerResetException.  It will be better if u can create a new HBase specific exception,
extending DNRIOE for the HFile not found case.
Else +1

> The ClientSimpleScanner keeps retrying if the hfile is corrupt or cannot found
> ------------------------------------------------------------------------------
>
>                 Key: HBASE-17095
>                 URL: https://issues.apache.org/jira/browse/HBASE-17095
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, scan
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HBASE-17095.patch, TestScannerWithCorruptHFile.java
>
>
> In {{RsRPCServices.scan}}, most of IOE are thrown as a {{ScannerResetException}}, even
when the hfile is corrupt or it cannot be found. The {{ClientScannr.loadCache}} will keep
retrying when the exception is {{ScannerResetException}}. We could throw CorruptHFileException
and FileNotFoundException directly from server and don't retry the scan in the client.



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