# Postgresql – Why are the queries in idle state

amazon-rdspostgresqlpostgresql-11postgresql-performance

I'm new to postgres , I've aws rds instance running postgresql with engine version 11.5.

All my queries are clientRead has the wait_event. Why do I have all my queries in idle status.Does this mean they are idle in transaction?

What are the steps should I take to fix this?

If I change to idle_in_transaction_session_timeout to 10 mins for example will it fix this?

select count(*),state FROM pg_stat_activity group by 2;
count | state
-------+--------
5 |
1 | active
451 | idle

Select pid, datname, usename, wait_event_type, wait_event, backend_type FROM pg_stat_activity where state='idle';
pid  | datname  |         usename          | wait_event_type | wait_event |  backend_type
-------+----------+--------------------------+-----------------+------------+----------------
14797 | xxxxx    | user                     | Client          | ClientRead | client backend

SELECT current_setting('idle_in_transaction_session_timeout');
current_setting
-----------------
1d
(1 row)


Sessions that are idle are not a problem. It simply means the backend is waiting for the client to send a SQL query.
Sessions that are idle in transaction would be a problem if they stayed in that state for too long. That's what the idle_in_transaction_session_timeout handles, not "idle" sessions.