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From yu feng <olaptes...@gmail.com>
Subject Re: Safe Restart for Impala Deamon
Date Wed, 19 Apr 2017 01:50:30 GMT
Hi, I am Newly join to Impala community, If no-one is actually working on
this task, maybe I can try to make some contribution about it.

2017-04-19 1:12 GMT+08:00 Henry Robinson <henry@cloudera.com>:

>
>
> On 18 April 2017 at 10:08, Antoni Ivanov <aivanov@vmware.com> wrote:
>
>> Hi,
>>
>> I think right now if you want to restart Impala Deamon - all queries on
>> this daemon executing on this node (either as fragments or coordinators)
>> fail. Right?
>> Is there a way (or do you plan) to have safe-restart option?
>>
>> It probably just needs to de-register from statestored (maybe it's safe)
>> also there's 'impala-server.ready' option which can be marked as false and
>> wait til all fragments/queries have finished (or times out) and then stops.
>>
>
> Right, that's basically what you need to do. See
> https://issues.apache.org/jira/browse/IMPALA-1760. I don't think anyone
> is actively working on it right now.
>
> Henry
>
>

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