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