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From "Maxim Khutornenko (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AURORA-1533) Transient connection errors can leave client in irrecoverable state
Date Mon, 02 Nov 2015 18:52:27 GMT

     [ https://issues.apache.org/jira/browse/AURORA-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Maxim Khutornenko updated AURORA-1533:
--------------------------------------
    Assignee: Stephan Erb

> Transient connection errors can leave client in irrecoverable state
> -------------------------------------------------------------------
>
>                 Key: AURORA-1533
>                 URL: https://issues.apache.org/jira/browse/AURORA-1533
>             Project: Aurora
>          Issue Type: Bug
>            Reporter: Stephan Erb
>            Assignee: Stephan Erb
>            Priority: Minor
>
> During a cluster update, some of our schedulers returned an unknown error to connecting
clients ([relevant code|https://github.com/apache/aurora/blob/b712d577364f6b1613b54ba696bac4ddc255ae58/src/main/python/apache/aurora/client/api/scheduler_client.py#L268]).
 Long running clients failed to recover from these errors as the code assumed the connection
was already established. Subsequent scheduling calls thus failed with the following exception:
> {code}
> File  "venv/local/lib/python2.7/site-packages/apache/aurora/client/api/__init__.py" 
in query_no_configs
>   140.       raise self.ThriftInternalError(e.args[0])
> Exception Type: ThriftInternalError
> Exception Value: Error during thrift call getTasksWithoutConfigs to 
> testcluster: 'NoneType' object has no attribute 'getTasksWithoutConfigs'
> {code}
> Background: We are using the python client to dispatch calls to Aurora from within a
long-running web service. The connection is kept open as long as the web service is running.




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