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Posted to hdfs-dev@hadoop.apache.org by "Eli Collins (JIRA)" <ji...@apache.org> on 2011/07/22 09:24:58 UTC
[jira] [Created] (HDFS-2185) HA: ZK-based FailoverController
HA: ZK-based FailoverController
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Key: HDFS-2185
URL: https://issues.apache.org/jira/browse/HDFS-2185
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Eli Collins
Assignee: Eli Collins
This jira is for a ZK-based FailoverController daemon. The FailoverController is a separate daemon from the NN that does the following:
* Initiates leader election (via ZK) when necessary
* Performs health monitoring (aka failure detection)
* Performs fail-over (standby to active and active to standby transitions)
* Heartbeats to ensure the liveness
It should have the same/similar interface as the Linux HA RM to aid pluggability.
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[jira] [Resolved] (HDFS-2185) HA: HDFS portion of ZK-based
FailoverController
Posted by "Todd Lipcon (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-2185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon resolved HDFS-2185.
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Resolution: Fixed
Fix Version/s: Auto failover (HDFS-3042)
Hadoop Flags: Reviewed
Committed to auto-failover branch (HDFS-3042). Please feel free to continue commenting on the design -- either here, or if you prefer, we can move the discussion to the umbrella task HDFS-3042. Apologies for having uploaded the document to this subtask instead of the supertask.
> HA: HDFS portion of ZK-based FailoverController
> -----------------------------------------------
>
> Key: HDFS-2185
> URL: https://issues.apache.org/jira/browse/HDFS-2185
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: auto-failover, ha
> Affects Versions: 0.24.0, 0.23.3
> Reporter: Eli Collins
> Assignee: Todd Lipcon
> Fix For: Auto failover (HDFS-3042)
>
> Attachments: Failover_Controller.jpg, hdfs-2185.txt, hdfs-2185.txt, hdfs-2185.txt, hdfs-2185.txt, hdfs-2185.txt, zkfc-design.pdf, zkfc-design.pdf, zkfc-design.pdf, zkfc-design.tex
>
>
> This jira is for a ZK-based FailoverController daemon. The FailoverController is a separate daemon from the NN that does the following:
> * Initiates leader election (via ZK) when necessary
> * Performs health monitoring (aka failure detection)
> * Performs fail-over (standby to active and active to standby transitions)
> * Heartbeats to ensure the liveness
> It should have the same/similar interface as the Linux HA RM to aid pluggability.
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