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From "James E. King III (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (THRIFT-3737) Improve TSocket isOpen() implementation to give more accurate connection status.
Date Fri, 01 Feb 2019 03:58:00 GMT

     [ https://issues.apache.org/jira/browse/THRIFT-3737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James E. King III closed THRIFT-3737.
-------------------------------------
    Resolution: Invalid
      Assignee: James E. King III

> Improve TSocket isOpen() implementation to give more accurate connection status.
> --------------------------------------------------------------------------------
>
>                 Key: THRIFT-3737
>                 URL: https://issues.apache.org/jira/browse/THRIFT-3737
>             Project: Thrift
>          Issue Type: Bug
>          Components: Python - Library
>            Reporter: Cherrot Luo
>            Assignee: James E. King III
>            Priority: Major
>              Labels: patch
>   Original Estimate: 0h
>  Remaining Estimate: 0h
>
> h2. Description
> Typically isOpen() of TSocket.py in python lib would *ALWAYS* return true, even if the
underlying TCP connection has been closed or reset by the peer, unless you manually invoke
its close() method.
> This is because the isOpen method takes a simple but kind of "irresponsible" way to judge
connection status:
> {code:title=TSocket.py}
> def isOpen(self):
>     return self.handle is not None
> {code}
> This may affect the downstream lib/tools' implementation to offer a *reliable* transport
instance. 
> For example, in [happybase|https://github.com/wbolster/happybase] (a developer-friendly
Python library to interact with Apache HBase), it use isOpen() to judge whether it neccessary
to reopen the connection in its [connection|https://github.com/wbolster/happybase/blob/9cbd718c10a3089f234f1eac1236b631e1f8e7cd/happybase/connection.py#L164]
and connection pool.
> h2. Fix
> I've sent a github [Pull Request|https://github.com/apache/thrift/pull/945]



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