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Date: Tue, 3 Nov 2009 20:02:32 +0000 (UTC)
From: "Jean-Daniel Cryans (JIRA)" <jira@apache.org>
To: hbase-dev@hadoop.apache.org
Subject: [jira] Commented: (HBASE-1920) Client with cached region location
 pointing at dead server does not recover
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    [ https://issues.apache.org/jira/browse/HBASE-1920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12773154#action_12773154 ] 

Jean-Daniel Cryans commented on HBASE-1920:
-------------------------------------------

I was able to manufacture the problem by using the shell to scan, kill the RS, then scan again. I'll try to see what's the exact trace.

> Client with cached region location pointing at dead server does not recover
> ---------------------------------------------------------------------------
>
>                 Key: HBASE-1920
>                 URL: https://issues.apache.org/jira/browse/HBASE-1920
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.1
>            Reporter: Jonathan Gray
>            Priority: Critical
>             Fix For: 0.20.2, 0.21.0
>
>
> Testing in HBASE-1908 uncovered an issue where I had a client that had cached a region location.  I killed that regionserver, waited for recovery/reassignment, and then tried to scan the table again from the same client w/o restarting it.
> A client normally gets a NotServingRegionException when a region is reassigned, but since this server is dead the client just got Connection Refused type exceptions.  These didn't seem to trigger the client to ask META for a new region location.

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