Re: [HACKERS] logical rep worker for table sync can start and stopvery frequently unexpectedly

On Wed, Apr 12, 2017 at 2:40 AM, Masahiko Sawada <sawada.mshk@gmail.com> wrote:
> On Wed, Apr 12, 2017 at 2:05 AM, Fujii Masao <masao.fujii@gmail.com> wrote:
>> Hi,
>>
>> I observed $subject when I ran the following steps.
>>
>> 1. start the publisher server
>> 2. start the subscriber server
>> 3. create table with primary key and publication for it
>> 4. insert several records into the table
>> 5. create table with primary key and subscription
>> 6. wait for table sync to finish
>> 7. drop the subscription and recreate the subscription
>>
>> Then the launcher starts the worker, and the worker starts
>> another worker for table sync. But that worker for table sync
>> exits immediately because of primary key violation.
>> Then the worker tries to start new worker for table sync immediately
>> and it also exits immediately because of primary key violation.
>> This sequence repeats very fast...
>>
>> Attached is the script that I used to reproduce the issue.
>>
>
> I encountered the same situation[1] and am proposing to put interval
> of launching table sync worker after failed to attempt.
>
> [1] https://www.postgresql.org/message-id/CAD21AoDCnyRJDUY%3DESVVe68AukvOP2dFomTeBFpAd1TiFbjsGg%40mail.gmail.com

Okay, let's discuss this in that thread. Thanks!

Regards,

-- 
Fujii Masao