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Posted to user@ignite.apache.org by Jorg Janke <jo...@accorto.com> on 2019/04/23 19:58:39 UTC

How to shut down Ignite properly

We try to shut down Ignite properly via:

    m_ignite.close(); // Ignite.close()
    m_ignite.executorService().shutdown();
    Ignition.stop(true);

but still get:

WARN: Ignite node stopped in the middle of checkpoint. Will restore memory
state and finish checkpoint on node start.

What is the recommended way to stop/shut down an (embedded) ignite instance?

Thanks!
Jorg

Jorg Janke - www.accorto.com - (650) 227-3271

Re: How to shut down Ignite properly

Posted by Jorg Janke <jo...@accorto.com>.

Thanks Dmitriy,

That did the trick. The only warning left is

WAL segment tail reached.

which based on your answer to a different post should be INFO not WARN.

Cheers,
Jorg

Jorg Janke - www.accorto.com - (650) 227-3271


On Tue, Apr 23, 2019 at 2:54 PM Dmitriy Pavlov <dp...@apache.org> wrote:

> Hi,
>
> Just Ignition.stop(true);  should be enough to wait till checkpoint ends.
> So it could be just one call to this method without anything else.
>
> If you did a prior call to ignite.close() this is equal to
> Ignition.stop(false) and this cause Ignite node to stop without waiting for
> checkpoint to finish. In that case, further calls have no effect.
>
> In any case, this warning says that it may require a longer time to
> restore memory during start-up, but not something that is dangerous for
> data.
>
> Sincerely,
> Dmitriy Pavlov
>
> вт, 23 апр. 2019 г. в 22:58, Jorg Janke <jo...@accorto.com>:
>
>> We try to shut down Ignite properly via:
>>
>>     m_ignite.close(); // Ignite.close()
>>     m_ignite.executorService().shutdown();
>>     Ignition.stop(true);
>>
>> but still get:
>>
>> WARN: Ignite node stopped in the middle of checkpoint. Will restore
>> memory state and finish checkpoint on node start.
>>
>> What is the recommended way to stop/shut down an (embedded) ignite
>> instance?
>>
>> Thanks!
>> Jorg
>>
>> Jorg Janke - www.accorto.com - (650) 227-3271
>>
>

Re: How to shut down Ignite properly

Posted by Dmitriy Pavlov <dp...@apache.org>.

Hi,

Just Ignition.stop(true);  should be enough to wait till checkpoint ends.
So it could be just one call to this method without anything else.

If you did a prior call to ignite.close() this is equal to
Ignition.stop(false) and this cause Ignite node to stop without waiting for
checkpoint to finish. In that case, further calls have no effect.

In any case, this warning says that it may require a longer time to restore
memory during start-up, but not something that is dangerous for data.

Sincerely,
Dmitriy Pavlov

вт, 23 апр. 2019 г. в 22:58, Jorg Janke <jo...@accorto.com>:

> We try to shut down Ignite properly via:
>
>     m_ignite.close(); // Ignite.close()
>     m_ignite.executorService().shutdown();
>     Ignition.stop(true);
>
> but still get:
>
> WARN: Ignite node stopped in the middle of checkpoint. Will restore memory
> state and finish checkpoint on node start.
>
> What is the recommended way to stop/shut down an (embedded) ignite
> instance?
>
> Thanks!
> Jorg
>
> Jorg Janke - www.accorto.com - (650) 227-3271
>