Statement timeout + replica imbalance #122
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levkk
commented
Aug 13, 2022
| @@ -499,7 +499,7 @@ where | |||
| // The query router determines where the query is going to go, | |||
| // e.g. primary, replica, which shard. | |||
| let mut query_router = QueryRouter::new(); | |||
| let mut round_robin = 0; | |||
| let mut round_robin = rand::random(); | |||
jmeagher
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to jmeagher/pgcat
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this pull request
Feb 17, 2023
* Prevent clients from sticking to old pools after config update (postgresml#113) * Re-acquire pool at the beginning of Protocol loop * Fix query router + add tests for recycling behavior * create a prometheus exporter on a standard http port (postgresml#107) * create a hyper server and add option to enable it in config * move prometheus stuff to its own file; update format * create metric type and help lookup table * finish the metric help type map * switch to a boolean and a standard port * dont emit unimplemented metrics * fail if curl returns a non 200 * resolve conflicts * move log out of config.show and into main * terminating new line * upgrade curl * include unimplemented stats * Validates pgcat is closed after shutdown python tests (postgresml#116) * Validates pgcat is closed after shutdown python tests * Fix pgrep logic * Moves sigterm step to after cleanup to decouple * Replace subprocess with os.system for running pgcat * fix docker compose port allocation for local dev (postgresml#117) change docker compose port to right prometheus port * Update CONTRIBUTING.md * Health check delay (postgresml#118) * initial commit of server check delay implementation * fmt * spelling * Update name to last_healthcheck and some comments * Moved server tested stat to after require_healthcheck check * Make health check delay configurable * Rename to last_activity * Fix typo * Add debug log for healthcheck * Add address to debug log * Speed up CI a bit (postgresml#119) * Sleep for 1s * use premade image * quicker * revert shutdown timeout * Fix debug log (postgresml#120) * Make prometheus port configurable (postgresml#121) * Make prometheus port configurable * Update circleci config * Statement timeout + replica imbalance fix (postgresml#122) * Statement timeout * send error message too * Correct error messages * Fix replica inbalance * disable stmt timeout by default * Redundant mark_bad * revert healthcheck delay * tests * set it to 0 * reload config again * pgcat toml Co-authored-by: Nicholas Dujay <3258756+dat2@users.noreply.github.com> Co-authored-by: zainkabani <77307340+zainkabani@users.noreply.github.com> Co-authored-by: Lev Kokotov <levkk@users.noreply.github.com> Co-authored-by: Pradeep Chhetri <30620077+chhetripradeep@users.noreply.github.com>
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Add a
statement_timeoutthat protects against servers that were not health checked and also sets a reasonable maximum query duration at the pooler.Fix replica load balancing imbalance in the case when a client connects to only issue one query.