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Tag: max-connections
mysql fine tuning: open_tables, opened_tables
Question : I’m a novice to database administration and have been depending on forum suggestions and answers to help resolve […]
Pooler (pgbouncer) + MasterDB + Slaves
Question : During a spike, my connections go from 30 to over 140, as you can see below: I’m willing […]
How many users are supported on SQL Server 2012 Express?
Question : I would like to say that i have gone through some of the sql blog and MSDN BOL, […]
How can I find the source of postgresql per-connection memory leaks?
Question : I’m using postgresql 9.5.4 on amazon RDS with ~1300 persistent connections from rails 4.2 with “prepared_statements: false”. Over […]
What reason could cause AWS RDS connections to spike
Question : It’s my first time using RDS on AWS, I use a t2.medium instance running MySQL Aurora with default […]
What limits the number of connections?
Question : As per https://devcenter.heroku.com/articles/heroku-postgres-legacy-plans the connection limit is 500 As per https://wiki.postgresql.org/wiki/Tuning_Your_PostgreSQL_Server “Generally, PostgreSQL on good hardware can support […]
PostgreSQL Correlation Between “max_connections” and “numbackends”
Question : I’m trying to figure out why the field numbackends in pg_stat_database never goes above 16 (and often stays […]
MySQL max_connection value
Question : Questions I got a 12 GB machine with apache & myqsl, i have may apache max_client set to […]
MySQL stalls and strange threads/connections behavior is observed
Question : We have a MySQL instance which most of the time works just fine. From time to time, however, […]