Re: [HACKERS] intermittent failures in Cygwin from select_paralleltests - Mailing list pgsql-hackers

From Andrew Dunstan
Subject Re: [HACKERS] intermittent failures in Cygwin from select_paralleltests
Date
Msg-id 1ec8438d-116c-00fa-ca04-4ffbd7efbae1@2ndQuadrant.com
Whole thread Raw
In response to Re: [HACKERS] intermittent failures in Cygwin from select_paralleltests  (Andrew Dunstan <andrew.dunstan@2ndquadrant.com>)
Responses Re: [HACKERS] intermittent failures in Cygwin from select_parallel tests
List pgsql-hackers

On 06/23/2017 07:47 AM, Andrew Dunstan wrote:
>
> On 06/23/2017 12:11 AM, Tom Lane wrote:
>> Andrew Dunstan <andrew.dunstan@2ndquadrant.com> writes:
>>> On 06/22/2017 10:24 AM, Tom Lane wrote:
>>>> That earlier request is still valid.  Also, if you can reproduce the
>>>> symptom that lorikeet just showed and get a stack trace from the
>>>> (hypothetical) postmaster core dump, that would be hugely valuable.
>>> See attached log and stacktrace
>> The stacktrace seems to be from the parallel-query-leader backend.
>> Was there another core file?
>>
>> The lack of any indication in the postmaster log that the postmaster saw
>> the parallel worker's crash sure looks the same as lorikeet's failure.
>> But if the postmaster didn't dump core, then we're still at a loss as to
>> why it didn't respond.
>>
>>             
>
>
> Rerunning with some different settings to see if I can get separate cores.
>


Numerous attempts to get core dumps following methods suggested in
Google searches have failed. The latest one is just hanging.

cheers

andrew


-- 
Andrew Dunstan                https://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services




pgsql-hackers by date:

Previous
From: Joel Jacobson
Date:
Subject: [HACKERS] \set AUTOROLLBACK ON
Next
From: Joel Jacobson
Date:
Subject: Re: [HACKERS] Optional message to user when terminating/cancelling backend