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From Jim Apple <jbap...@cloudera.com>
Subject Re: Safe Restart for Impala Deamon
Date Wed, 19 Apr 2017 21:40:18 GMT
This is a very large task. I think getting consensus on the design and
implementation will be very hard for someone new to the codebase and
community. I encourage you to pick up other tickets marked "newbie" first
and get to know your way around.

On Tue, Apr 18, 2017 at 6:50 PM, yu feng <olaptestyu@gmail.com> wrote:

> 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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