hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13651) Handle StoreFileScanner FileNotFoundException
Date Fri, 15 May 2015 19:25:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14546044#comment-14546044
] 

Hudson commented on HBASE-13651:
--------------------------------

FAILURE: Integrated in HBase-0.94-security #581 (See [https://builds.apache.org/job/HBase-0.94-security/581/])
HBASE-13651 Handle StoreFileScanner FileNotFoundExceptin (matteo.bertozzi: rev ca254ed51514d2f14fc1f751778fb82df423aab8)
* src/main/java/org/apache/hadoop/hbase/regionserver/StoreFileScanner.java
* src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
* src/test/java/org/apache/hadoop/hbase/regionserver/TestCorruptedRegionStoreFile.java
* src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
* src/main/java/org/apache/hadoop/hbase/regionserver/Store.java


> Handle StoreFileScanner FileNotFoundException
> ---------------------------------------------
>
>                 Key: HBASE-13651
>                 URL: https://issues.apache.org/jira/browse/HBASE-13651
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.27, 0.98.10.1
>            Reporter: Matteo Bertozzi
>            Assignee: Matteo Bertozzi
>            Priority: Minor
>             Fix For: 2.0.0, 0.94.28, 0.98.13, 1.2.0
>
>         Attachments: HBASE-13651-0.94-draft.patch, HBASE-13651-draft.patch, HBASE-13651-v0-0.94.patch,
HBASE-13651-v0-0.98.patch, HBASE-13651-v0-branch-1.patch, HBASE-13651-v0.patch
>
>
> Example:
>  * Machine-1 is serving Region-X and start compaction
>  * Machine-1 goes in GC pause
>  * Region-X gets reassigned to Machine-2
>  * Machine-1 exit from the GC pause
>  * Machine-1 (re)moves the compacted files
>  * Machine-1 get the lease expired and shutdown
> Machine-2 has now tons of FileNotFoundException on scan. If we reassign the region everything
is ok, because we pickup the files compacted by Machine-1.
> This problem doesn't happen in the new code 1.0+  (i think but I haven't checked, it
may be 1.1) where we write on the WAL the compaction event before (re)moving the files.
> A workaround is handling FileNotFoundException and refresh the store files, or shutdown
the region and reassign. the first one is easy in 1.0+ the second one requires more work because
at the moment we don't have the code to notify the master that the RS is closing the region,
alternatively we can shutdown the entire RS (it is not a good solution but the case is rare
enough)



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message