Re: Issue with refreshing materialized view from another system

Mike,

1. You're using mysql_fdw to connect?

2. What happens when you just run the raw SELECT statement (redirecting
stdout to /dev/null, since we only need timings and error messages) from
psql?

On Thu, Feb 26, 2026 at 6:37 PM Michael Nolan <htfoot(at)gmail(dot)com> wrote:

> My understanding is that the mysql server is at a Linode facility in PA,
> the current production postgres server is in Asheville NC, and the intended
> new server is a Azure server in the eastern US, not sure exactly where.
>
> The two small matviews refresh, the two bigger ones fail, so it seems
> size-related, which is why I was wondering if the settings might make a
> difference because this server isn't fully production-scale yet. But
> weve transferred 175 GB files to it in about 6 hours so I think the net
> connection itself is probably not the issue.
>
> Mike Nolan
>
> On Thu, Feb 26, 2026 at 4:11 PM Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
> wrote:
>
>> On 2/26/26 1:59 PM, Michael Nolan wrote:
>> > We have a connection from a PostgreSQL server to a MySQL server which
>> is
>> > used to update a materialized view on the PostgreSQL server from tables
>> > on the MySQL server (running CIVI-CRM, which may not be relevant.)
>> >
>> > We are trying to move the PostgreSQL server to a new cloud server.
>> >
>> > On the current production system, all the materialized views work, but
>> > the biggest of them can take about an hour.
>> >
>> > On the new system, the smallest of the materialized views works, but
>> the
>> > larger ones all seem to time out.
>>
>> "... move the PostgreSQL server to a new cloud server", where is that
>> relative to the MySQL server compared to old Postgres server?
>>
>> >
>> > Could this be some kind of setting on PostgreSQL, like a memory or
>> > buffer issue?
>> >
>> > Mike Nolan
>> > htfoot(at)gmail(dot)com <mailto:htfoot(at)gmail(dot)com>
>>
>>
>> --
>> Adrian Klaver
>> adrian(dot)klaver(at)aklaver(dot)com
>>
>

--
Death to <Redacted>, and butter sauce.
Don't boil me, I'm still alive.
<Redacted> lobster!