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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17095) The ClientSimpleScanner keeps retrying if the hfile is corrupt or cannot found
Date Tue, 15 Nov 2016 17:09:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17095?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15667679#comment-15667679
] 

Ted Yu commented on HBASE-17095:
--------------------------------

{code}
69	    } catch (Exception e) {
70	      LOG.warn("fail to shut down the cluster", e);
{code}
Why is the above needed ?

> 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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