You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2014/07/16 23:49:05 UTC
[jira] [Resolved] (HBASE-1296) Bulk upload can overwhelm a datanode
filling its disk because HDFS deletes lag
[ https://issues.apache.org/jira/browse/HBASE-1296?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Purtell resolved HBASE-1296.
-----------------------------------
Resolution: Cannot Reproduce
Reopen or file new issue if still a factor with modern Hadoop and HBase versions
> Bulk upload can overwhelm a datanode filling its disk because HDFS deletes lag
> ------------------------------------------------------------------------------
>
> Key: HBASE-1296
> URL: https://issues.apache.org/jira/browse/HBASE-1296
> Project: HBase
> Issue Type: Bug
> Reporter: stack
>
> From a private mail with Jérôme Thièvre:
> "Two times I got the same kind of problems described by schubert zhang in the thread *HDFS unbalance issue. (HBase over HDFS). *The first time, I found one of my regionserver with a full disk, whereas the others were at 10% of their capacity. I saw a lot of move file command at hadoop level from the full regionserver to others, but after check on the hdfs, I can see that hadoop copies the file but fails to delete it. As the regionserver disk was full, it didn't work anymore, even after hadoop and hbase restart. I had to delete all the data.
> "The second time this problem occurs I stopped the row insertion process before the disk was full. After hadoop and hbase restart, hadoop has deleted the files and the system was operational.
> It seems that in some cases where the system is heavily loaded with continuous writes and compactions, hadoop can't remove files."
--
This message was sent by Atlassian JIRA
(v6.2#6252)