hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2757) Cannot read a local block that's being written to when using the local read short circuit
Date Sun, 09 Sep 2012 06:46:09 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eli Collins updated HDFS-2757:
------------------------------

    Attachment: hdfs-2757-b1.txt

Uploading the branch-1 version (same change).
                
> Cannot read a local block that's being written to when using the local read short circuit
> -----------------------------------------------------------------------------------------
>
>                 Key: HDFS-2757
>                 URL: https://issues.apache.org/jira/browse/HDFS-2757
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 1.2.0, 2.0.2-alpha
>
>         Attachments: hdfs-2757-b1.txt, HDFS-2757-branch-1.patch, HDFS-2757-branch-1-v2.patch,
HDFS-2757-trunk.patch, hdfs-2757.txt
>
>
> When testing the tail'ing of a local file with the read short circuit on, I get:
> {noformat}
> 2012-01-06 00:17:31,598 WARN org.apache.hadoop.hdfs.DFSClient: BlockReaderLocal requested
with incorrect offset:  Offset 0 and length 8230400 don't match block blk_-2842916025951313698_454072
( blockLen 124 )
> 2012-01-06 00:17:31,598 WARN org.apache.hadoop.hdfs.DFSClient: BlockReaderLocal: Removing
blk_-2842916025951313698_454072 from cache because local file /export4/jdcryans/dfs/data/blocksBeingWritten/blk_-2842916025951313698
could not be opened.
> 2012-01-06 00:17:31,599 INFO org.apache.hadoop.hdfs.DFSClient: Failed to read block blk_-2842916025951313698_454072
on local machine java.io.IOException:  Offset 0 and length 8230400 don't match block blk_-2842916025951313698_454072
( blockLen 124 )
> 2012-01-06 00:17:31,599 INFO org.apache.hadoop.hdfs.DFSClient: Try reading via the datanode
on /10.4.13.38:51010
> java.io.EOFException: hdfs://sv4r11s38:9100/hbase-1/.logs/sv4r13s38,62023,1325808100311/sv4r13s38%2C62023%2C1325808100311.1325808100818,
entryStart=7190409, pos=8230400, end=8230400, edit=5
> {noformat}

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message