19 days ago
I currently have about 12 services connecting to my database. After running smoothly for a while, I began getting “too many client connection” errors, so I installed PgBouncer. It fixed the overload issue, but now I’m seeing a new error:
error: select * from information_schema.tables where table_name = $1 and table_schema = current_schema() - query_wait_timeout
From what I’ve learned, this happens when too many concurrent clients are waiting for connections and PgBouncer exceeds its query_wait_timeout limit.
I was advised to update my pgbouncer.ini with these settings:
pool_mode = transaction
query_timeout = 60
query_wait_timeout = 60
server_idle_timeout = 30
However, I’m not sure where to find the pgbouncer.ini file in my Railway project.
Since I plan to scale to over 100 services in the future, I’d like to know how to structure my setup to prevent this issue now and as the project grows.
7 Replies
19 days ago
Hey there! We've found the following might help you get unblocked faster:
If you find the answer from one of these, please let us know by solving the thread!
19 days ago
PgBouncer
Lightweight connection pooler for PostgreSQL
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19 days ago
Hey, sorry for the delay. That template simply uses the bitnami/pgbouncer image under the hood. You're able to configure it via environment variables too: https://github.com/bitnami/containers/blob/main/bitnami/pgbouncer/README.md
The important ones that I see are:
PGBOUNCER_QUERY_WAIT_TIMEOUT=60
PGBOUNCER_POOL_MODE=transaction
PGBOUNCER_SERVER_IDLE_TIMEOUT=30
PGBOUNCER_QUERY_TIMEOUT=60
Setting those environment variables on the PgBouncer service should do the trick.
19 days ago
Alright thanks for the info.
I am going to add to the pgbouncer environment?
juventusjude
Alright thanks for the info. I am going to add to the pgbouncer environment?
18 days ago
Sure, let me know how it goes, and yeah you'll need to add to your PgBouncer service environment (hopefully that's a question and not a typo).
18 days ago
Yes. It worked. Thanks
Status changed to Solved samgordon • 18 days ago