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From kishore g <g.kish...@gmail.com>
Subject Re: Old sessions and current sessions not matching on restart
Date Tue, 06 Jan 2015 03:02:34 GMT
What code do you have in your shutdown hook. Are you disconnecting
gracefully from the cluster and waiting until the liveinstance znode
disappears.

thanks,
Kishore G

On Mon, Jan 5, 2015 at 4:11 PM, Varun Sharma <varun@pinterest.com> wrote:

> But then the nodes would restart and not have the assigned partitions
> since the controller would not write out the messages to open partitions
> which should have been on the restarting node ?
>
> On Mon, Jan 5, 2015 at 4:08 PM, kishore g <g.kishore@gmail.com> wrote:
>
>> Try pausing the cluster controller before restarting and unpause after re
>> start.
>>  On Jan 5, 2015 3:41 PM, "Varun Sharma" <varun@pinterest.com> wrote:
>>
>>> Hi,
>>>
>>> When I do a cluster wide restart, I see the following errors being
>>> logged:
>>>
>>>  2015-01-05 22:08:27,526 [main] (ParticipantManagerHelper.java:234)
>>> INFO  *Carrying over old session: 149a14ada0d0323*, resource:
>>> $terrapin$data$meta_board_join$1415863274925 to current session:
>>> *149a14ada0d0324*
>>>
>>> This is then followed by a large number of errors:
>>>
>>> 2015-01-05 22:08:30,321 [main] (HelixTaskExecutor.java:559) WARN
>>> SessionId does NOT match. *expected sessionId: 149a14ada0d0324*,
>>> tgtSessionId in message: *149a14ada0d0323*, messageId:
>>> da2ce3df-b797-4a27-9916-862c27af290a
>>>
>>>
>>> Does this signify a problem - it happens everytime I do restart ?
>>>
>>>
>>> Thanks
>>>
>>> Varun
>>>
>>
>

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