[ckan-dev] SSL SYSCALL Error

Wed Sep 19 18:50:53 UTC 2018

So i set the following values in my postgresql.conf file and it didnt work
when i forced a disconnect. I was still getting the SSL SysCall error after
5 minutes.

tcp_keepalives_idle=300
tcp_keepalives_interval=30
tcp_keepalives_count=60

My postgres server is hosted on Azure.

On Wed, Sep 19, 2018 at 9:44 AM Biz Tweets <optweets at gmail.com> wrote:

> Where and what settings did you set for postgres keep alive?
>
> I found this reference but I want to just confirm since you got it working.
>
>
> https://stackoverflow.com/questions/6592137/sqlalchemy-fails-to-connect-to-db-after-server-is-idle-for-a-few-hours
>
> On Tue, Sep 18, 2018 at 4:51 PM Karen Turner <karen at catalyst.net.nz>
> wrote:
>
>> Hi
>>
>> I've had this issue when the firewall between ckan and Postgres would
>> drop inactive connections.  Looks like the way SQL Alchemy is used
>> doesn't retry.
>>
>> The work around I used was to change the Postgres configuration to use
>> keep alives.
>>
>> Karen
>>
>> On 19/09/18 02:44, Ross Jones wrote:
>> > I think it's probably https://github.com/ckan/ckan/issues/3415
>> >
>> > If you search the mailing list I think this has come up before. I work
>> > around it with pgbouncer but I think there was a thread with an
>> > alternative solution.
>> >
>> > Ross
>> >
>> >
>> >
>> >
>> > On Tue, Sep 18, 2018, at 3:22 PM, Biz Tweets wrote:
>> >> Hey there,
>> >>
>> >> We are hosting our ckan build on Azure. The Postgres DB Is running
>> >> on Azure Database for PostgreSQL. Sometimes it seems that the
>> >> connection breaks and once it does the following error will hang below
>> >> in Apache2 error logs and the site will not reconnect.
>> >>
>> >> Has anyone come accross this error and or have a known way for ckan to
>> >> reconnect if this error arises due to a postgres break?
>> >>
>> >> Usually all i need to run to fix this error will be an apache2 restart
>> >>
>> >> OperationalError: (OperationalError) SSL SYSCALL error: EOF detected
>> >> 'SELECT system_info.id <http://system_info.id> AS system_info_id,
>> >> system_info.key AS system_info_key, system_info.value AS
>> >> system_info_value, system_info.state AS system_info_state,
>> >> system_info.revision_id AS system_info_revision_id \nFROM system_info
>> >> \nWHERE system_info.key = %(key_1)s \n LIMIT %(param_1)s' {'param_1':
>> >> 1, 'key_1': 'ckan.config_update'}
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>> >
>> >
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