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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2006/06/29 08:28:29 UTC
[jira] Created: (HADOOP-332) Implement remote replication of dfs
namespace images and transaction logs
Implement remote replication of dfs namespace images and transaction logs
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Key: HADOOP-332
URL: http://issues.apache.org/jira/browse/HADOOP-332
Project: Hadoop
Type: Improvement
Components: dfs
Versions: 0.4.0
Reporter: Owen O'Malley
Assigned to: Owen O'Malley
Fix For: 0.5.0
The namespace information (image and transaction logs) needs to be replicated on hosts other than the namenode to prevent data loss if a namenode crashes. In the short term we will add a new protocol to the datanodes to receive and store the namespace information.
In the long term, it would be nice to have read-only namenodes that could receive the information and serve it up for users that want to read data, but do not need to write to the namespace.
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[jira] Resolved: (HADOOP-332) Implement remote replication of dfs
namespace images and transaction logs
Posted by "Sameer Paranjpye (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HADOOP-332?page=all ]
Sameer Paranjpye resolved HADOOP-332.
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Resolution: Duplicate
Duplicate of HADOOP-90
> Implement remote replication of dfs namespace images and transaction logs
> -------------------------------------------------------------------------
>
> Key: HADOOP-332
> URL: http://issues.apache.org/jira/browse/HADOOP-332
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.4.0
> Reporter: Owen O'Malley
> Assigned To: Konstantin Shvachko
>
> The namespace information (image and transaction logs) needs to be replicated on hosts other than the namenode to prevent data loss if a namenode crashes. In the short term we will add a new protocol to the datanodes to receive and store the namespace information.
> In the long term, it would be nice to have read-only namenodes that could receive the information and serve it up for users that want to read data, but do not need to write to the namespace.
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[jira] Assigned: (HADOOP-332) Implement remote replication of dfs
namespace images and transaction logs
Posted by "Owen O'Malley (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HADOOP-332?page=all ]
Owen O'Malley reassigned HADOOP-332:
------------------------------------
Assignee: Konstantin Shvachko (was: Owen O'Malley)
> Implement remote replication of dfs namespace images and transaction logs
> -------------------------------------------------------------------------
>
> Key: HADOOP-332
> URL: http://issues.apache.org/jira/browse/HADOOP-332
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.4.0
> Reporter: Owen O'Malley
> Assigned To: Konstantin Shvachko
> Fix For: 0.5.0
>
>
> The namespace information (image and transaction logs) needs to be replicated on hosts other than the namenode to prevent data loss if a namenode crashes. In the short term we will add a new protocol to the datanodes to receive and store the namespace information.
> In the long term, it would be nice to have read-only namenodes that could receive the information and serve it up for users that want to read data, but do not need to write to the namespace.
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[jira] Commented: (HADOOP-332) Implement remote replication of dfs
namespace images and transaction logs
Posted by "Milind Bhandarkar (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HADOOP-332?page=comments#action_12451455 ]
Milind Bhandarkar commented on HADOOP-332:
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should this issue be closed now that we have a patch committed for HADOOP-90 ?
> Implement remote replication of dfs namespace images and transaction logs
> -------------------------------------------------------------------------
>
> Key: HADOOP-332
> URL: http://issues.apache.org/jira/browse/HADOOP-332
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.4.0
> Reporter: Owen O'Malley
> Assigned To: Konstantin Shvachko
>
> The namespace information (image and transaction logs) needs to be replicated on hosts other than the namenode to prevent data loss if a namenode crashes. In the short term we will add a new protocol to the datanodes to receive and store the namespace information.
> In the long term, it would be nice to have read-only namenodes that could receive the information and serve it up for users that want to read data, but do not need to write to the namespace.
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