You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-dev@hadoop.apache.org by "Meng Xu (JIRA)" <ji...@apache.org> on 2008/06/19 09:55:45 UTC
[jira] Created: (HADOOP-3596) Namenode cluster(multi namenode
working in active-active mode) to keep high availability and expansivity
Namenode cluster(multi namenode working in active-active mode) to keep high availability and expansivity
--------------------------------------------------------------------------------------------------------
Key: HADOOP-3596
URL: https://issues.apache.org/jira/browse/HADOOP-3596
Project: Hadoop Core
Issue Type: New Feature
Components: dfs
Environment: Hadoop cluster on more than thousands of nodes, most of all, the number of files is mass.
Reporter: Meng Xu
If we use the DFS to store a great quantity of files which is very small, i.e. the namenode is under high pressure of indexing files, should we consider to introduce other namenodes working concurrently for availability and scalability?
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Commented: (HADOOP-3596) Namenode cluster(multi namenode
working in active-active mode) to keep high availability and expansivity
Posted by "Qi Ji (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-3596?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12611916#action_12611916 ]
Qi Ji commented on HADOOP-3596:
-------------------------------
Yeah, when the file number approximates 100 million the overall performance is greatly affected by name node performance. We are going to work this out by a patch about cooperative multi namenodes soon.
> Namenode cluster(multi namenode working in active-active mode) to keep high availability and expansivity
> --------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-3596
> URL: https://issues.apache.org/jira/browse/HADOOP-3596
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Environment: Hadoop cluster on more than thousands of nodes, most of all, the number of files is mass.
> Reporter: Meng Xu
> Original Estimate: 672h
> Remaining Estimate: 672h
>
> If we use the DFS to store a great quantity of files which is very small, i.e. the namenode is under high pressure of indexing files, should we consider to introduce other namenodes working concurrently for availability and scalability?
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.