You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hbase.apache.org by "Lars Hofhansl (Updated) (JIRA)" <ji...@apache.org> on 2012/02/28 07:51:48 UTC
[jira] [Updated] (HBASE-4324) Single unassigned directory is very
slow when there are many unassigned nodes
[ https://issues.apache.org/jira/browse/HBASE-4324?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lars Hofhansl updated HBASE-4324:
---------------------------------
Fix Version/s: (was: 0.92.2)
(was: 0.94.0)
0.96.0
Is this still an issue? Moving out of 0.94 for now.
> Single unassigned directory is very slow when there are many unassigned nodes
> -----------------------------------------------------------------------------
>
> Key: HBASE-4324
> URL: https://issues.apache.org/jira/browse/HBASE-4324
> Project: HBase
> Issue Type: Bug
> Components: zookeeper
> Affects Versions: 0.90.4
> Reporter: Todd Lipcon
> Fix For: 0.96.0
>
>
> Because we use a single znode for /unassigned, and we re-list it every time its contents change, assignment speed per region is O(number of unassigned regions) rather than O(1). Every time something changes about one unassigned region, the master has to re-list the entire contents of the directory inside of AssignmentManager.nodeChildrenChanged().
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira