Concurrency - library cache: mutex X
MR139Jul 3 2012 — edited Jul 25 2012We have Oracle 11gR2 (11.2.0.1) RAC (2-Node) database on HP-UX 11.31
We are having Active Sessions Waiting: Concurrency --> library cache: mutex X
All the connections are evenly distributed to both the nodes but we see more load on node-1 (95% CPU). node-1 is less than 50% CPU.
And in node-1 the CPU is high because of Concurrency --> library cache: mutex X wait. and there is no blocking sessions on the database. Dose anyone had similar issue?