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https://issues.apache.org/jira/browse/SAMZA-1583?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shanthoosh Venkataraman updated SAMZA-1583:
-------------------------------------------
    Description: 
Leader reads the processorId's of zookeeper ephemeral nodes through the 
following two operations to generate JobModel:

A. ephemeralZkNodes = Get the list of ephemeral zookeeper nodes.

B. For each zkNode in ephemeralZkNodes:
           fetch data of the zkNode.

The zkNodes returned by the operation A, may no longer be available when fetch 
data remote call was made. This will cause zkClient to throw 
ZkNoNodeExistsException. This exception is unhandled currently, there by 
failing the leader.

  was:
Reading the processorId's of zookeeper ephemeral nodes is accomplished by the 
following two operations:

A. ephemeralZkNodes = Get the list of ephemeral zookeeper nodes.

B. For each zkNode in ephemeralZkNodes:
           fetch data of the zkNode.

The zkNodes returned by the operation A, may no longer be available when fetch 
data remote call was made. This will cause zkClient to throw 
ZkNoNodeExistsException. This exception is unhandled currently, there by 
failing the leader.


> Reading ephemeral node data throws ZkNoNodeExistsException.
> -----------------------------------------------------------
>
>                 Key: SAMZA-1583
>                 URL: https://issues.apache.org/jira/browse/SAMZA-1583
>             Project: Samza
>          Issue Type: Bug
>            Reporter: Shanthoosh Venkataraman
>            Assignee: Shanthoosh Venkataraman
>            Priority: Major
>
> Leader reads the processorId's of zookeeper ephemeral nodes through the 
> following two operations to generate JobModel:
> A. ephemeralZkNodes = Get the list of ephemeral zookeeper nodes.
> B. For each zkNode in ephemeralZkNodes:
>            fetch data of the zkNode.
> The zkNodes returned by the operation A, may no longer be available when 
> fetch data remote call was made. This will cause zkClient to throw 
> ZkNoNodeExistsException. This exception is unhandled currently, there by 
> failing the leader.



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