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Posted to issues@spark.apache.org by "Nicholas Chammas (JIRA)" <ji...@apache.org> on 2014/09/04 06:56:51 UTC

[jira] [Updated] (SPARK-3398) Have spark-ec2 intelligently wait for specific cluster states

     [ https://issues.apache.org/jira/browse/SPARK-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nicholas Chammas updated SPARK-3398:
------------------------------------
    Description: 
{{spark-ec2}} currently has retry logic for when it tries to install stuff on a cluster and for when it tries to destroy security groups. 

It would be better to have some logic that allows {{spark-ec2}} to explicitly wait for when all the nodes in a cluster it is working on have reached a specific state.

Examples:
* Wait for all nodes to be up
* Wait for all nodes to be up and accepting SSH connections (then start installing stuff)
* Wait for all nodes to be down
* Wait for all nodes to be terminated (then delete the security groups)

Having a function in the {{spark_ec2.py}} script that blocks until the desired cluster state is reached would reduce the need for various retry logic. It would probably also eliminate the need for the {{--wait}} parameter.

  was:
{{spark-ec2}} currently has retry logic for when it tries to install stuff on a cluster and for when it tries to destroy security groups. 

It would be better to have some logic that allows {{spark-ec2}} to explicitly wait for when all the nodes in a cluster it is working on have reached a specific state.

Examples:
* Wait for all nodes to be up
* Wait for all nodes to be up and accepting SSH connections (then start installing stuff)
* Wait for all nodes to be down
* Wait for all nodes to be terminated (then delete the security groups)

Having a function that blocks until the desired cluster state is reached would reduce the need for various retry logic and probably also eliminate the need for the {{--wait}} parameter.


> Have spark-ec2 intelligently wait for specific cluster states
> -------------------------------------------------------------
>
>                 Key: SPARK-3398
>                 URL: https://issues.apache.org/jira/browse/SPARK-3398
>             Project: Spark
>          Issue Type: Improvement
>          Components: EC2
>            Reporter: Nicholas Chammas
>            Priority: Minor
>
> {{spark-ec2}} currently has retry logic for when it tries to install stuff on a cluster and for when it tries to destroy security groups. 
> It would be better to have some logic that allows {{spark-ec2}} to explicitly wait for when all the nodes in a cluster it is working on have reached a specific state.
> Examples:
> * Wait for all nodes to be up
> * Wait for all nodes to be up and accepting SSH connections (then start installing stuff)
> * Wait for all nodes to be down
> * Wait for all nodes to be terminated (then delete the security groups)
> Having a function in the {{spark_ec2.py}} script that blocks until the desired cluster state is reached would reduce the need for various retry logic. It would probably also eliminate the need for the {{--wait}} parameter.



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