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From Ted Yu <yuzhih...@gmail.com>
Subject Re: IllegalArgumentException: Connection is null or closed when calling HConnection.getTable()
Date Mon, 19 Jan 2015 21:37:55 GMT
Which 0.98 release did you upgrade to ?

Can you pastebin the whole stack trace ?


> On Jan 19, 2015, at 1:25 PM, Calvin Lei <ckplei@gmail.com> wrote:
> Dear all,
>   I recently upgrade to HBase 0.0.98 and I have started seeing the error
> "Connection is null or closed" when calling HConnection.getTable().
>   As recommended by the documentation, I create a HConnection using
> HConnectionManager.createConnection(config) and at app start and close the
> connection at app shut down. Looks like the state of the cluster has
> changed during the lifetime of the app and the HConnection closes out all
> connections.
>    Do i have to check isClosed() before I call getTable()?

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