pgv14, RHEL8, xfs , we suddenly see tens of sessions waiting on
"DataFileRead" and "extend", it last about 2 seconds(based on
pg_stat_activity query) , during the waiting time, "%sys" cpu increased to
80% , but from "iostat" , no high iops and io read/write latency increased
either.
many sess
On Wed, 2025-06-25 at 11:15 +0800, James Pang wrote:
> pgv14, RHEL8, xfs , we suddenly see tens of sessions waiting on
> "DataFileRead" and
> "extend", it last about 2 seconds(based on pg_stat_activity query) , during
> the
> waiting time, "%sys" cpu increased to 80% , but from "iostat" , no high
