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Posted to hdfs-dev@hadoop.apache.org by "Justin Joseph (JIRA)" <ji...@apache.org> on 2011/09/21 16:37:09 UTC
[jira] [Created] (HDFS-2354) Generalize the HAServiceProtocol
interface
Generalize the HAServiceProtocol interface
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Key: HDFS-2354
URL: https://issues.apache.org/jira/browse/HDFS-2354
Project: Hadoop HDFS
Issue Type: Sub-task
Components: name-node
Reporter: Justin Joseph
Assignee: Justin Joseph
This JIRA intends to revisit the patches committed for HADOOP-7455 and HDFS-1974 & to provide more generic interfaces which allows alternative HA implementations to co-exist complying with HAServiceProtocol.
Some of the considerations are
1) Support life cycle methods (start*() and stop() APIs) in HAServiceProtocol
2) Support custom states in HAServiceProtocol
3) As per the patch submitted for HDFS-1974, Namenode implements HAService interface. This needs to be reconsidered.
I will elaborate on these points, in the form of comments below.
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[jira] [Resolved] (HDFS-2354) Generalize the HAServiceProtocol
interface
Posted by "Aaron T. Myers (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-2354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aaron T. Myers resolved HDFS-2354.
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Resolution: Not A Problem
Sounds good to me. Thanks a lot for your input, Justin.
> Generalize the HAServiceProtocol interface
> ------------------------------------------
>
> Key: HDFS-2354
> URL: https://issues.apache.org/jira/browse/HDFS-2354
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ha, name-node
> Reporter: Justin Joseph
> Assignee: Justin Joseph
> Attachments: HAService_fw_Class_Diagram.JPG, HDFS-2354.1.patch, HDFS-2354.patch, Namenode HA using Backup Namenode as Hot Standby.pdf
>
>
> This JIRA intends to revisit the patches committed for HADOOP-7455 and HDFS-1974 & to provide more generic interfaces which allows alternative HA implementations to co-exist complying with HAServiceProtocol.
> Some of the considerations are
> 1) Support life cycle methods (start*() and stop() APIs) in HAServiceProtocol
> 2) Support custom states in HAServiceProtocol
> 3) As per the patch submitted for HDFS-1974, Namenode implements HAService interface. This needs to be reconsidered.
> I will elaborate on these points, in the form of comments below.
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