[pgpool-general: 6160] Re: invalid value for parameter "client_encoding": "ISO_8859_8"

Mariel Cherkassky mariel.cherkassky at gmail.com
Wed Jul 11 23:19:43 JST 2018

I realized that it happens immediatly when I reload my cluster settings via
pg_ctl reload. Immediatly raised the curremt message for every database in
my cluster :
2018-07-11 17:17:56 IDTjiradbuserjiradbERROR:  invalid value for parameter
"client_encoding": "ISO_8859_8"
2018-07-11 17:17:56 IDTjiradbuserjiradbDETAIL:  Cannot change
"client_encoding" now.

What can I check in my postgresql.conf ?

2018-07-04 12:01 GMT+03:00 Mariel Cherkassky <mariel.cherkassky at gmail.com>:

> It happens to all the sessions I have to all the databases. In other
> words, different apps are connected to different databases but I still keep
> getting those errors. I queried pg_shadow and I didnt see that a specific
> user has a different client_encoding configured. Moreover, the
> client_encoding is set to default in postgresql.conf.
> What else can I check ? I'm trying to check the if the problem is in the
> pool as tatsuo suggested but is there anything else that I can check ?
> 2018-07-01 18:33 GMT+03:00 Tom Lane <tgl at sss.pgh.pa.us>:
>> Mariel Cherkassky <mariel.cherkassky at gmail.com> writes:
>> > My postgresql env consist of 3 nodes(9.6 version) and 2 pgpool`s that
>> acts
>> > as a load balancer. I'm using postgresql as a database for the next
>> apps :
>> > bitbucket,jira and crowd. However, I'm getting alot of errors in the
>> pgpool
>> > log about the client_encoding for every connection that comes from one
>> of
>> > those application :
>> > invalid value for parameter "client_encoding": "ISO_8859_8"
>> > Cannot change "client_encoding" now.
>> [ digs around ... ] The "Cannot change" bit seems to indicate that this
>> error is coming from check_client_encoding(), and it's failing because
>> it cannot change client_encoding for an existing session outside a
>> transaction.  The comment about it is:
>>      * ... This would only happen if someone tries to change
>>      * client_encoding in postgresql.conf and then SIGHUP existing
>> sessions.
>>      * It seems like a bad idea for client_encoding to change that way
>> anyhow,
>>      * so we don't go out of our way to support it.
>> I'm not very sure how you'd get into a state where this was affecting
>> new sessions as well as pre-existing ones, or why it would affect only
>> some sessions.  Maybe the latter could be explained if all but this one
>> app explicitly set client_encoding for themselves.
>> Anyway, I think it's impossible for the client app to trigger this
>> by itself.  There must be some server-side source of this value,
>> if not postgresql.conf then maybe ALTER DATABASE/ROLE SET?
>>                         regards, tom lane
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