[jira] [Created] (SPARK-1574) ec2/spark_ec2.py should provide option to control number of attempts for ssh operations

["Art Peel (JIRA)" <ji...@apache.org>]

Art Peel created SPARK-1574:
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             Summary: ec2/spark_ec2.py should provide option to control number of attempts for ssh operations
                 Key: SPARK-1574
                 URL: https://issues.apache.org/jira/browse/SPARK-1574
             Project: Spark
          Issue Type: Improvement
          Components: EC2
    Affects Versions: 0.9.0
            Reporter: Art Peel
            Priority: Minor


EC instances are sometimes slow to start up.  When this happens, generating the cluster ssh key or sending the generated cluster key to the slaves can fail due to an ssh timeout.

The script currently hard-codes the number of tries for ssh operations as 2.

For more flexibility, it should be possible to specify the number of tries with a command-line option, --num-ssh-tries, that defaults to 2 to keep the current behavior if not provided.





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