resmgr:I/O rate limit
The session is waiting for I/O bandwidth to be allocated to queue an I/O request.
Detailed Description​
Resource Manager is in operation and managing PDB I/O workload.
Oracle resource management allows the management of competing workloads within servers and databases. It is used to manage Pluggable Database (PDB) resource consumption within a Container Database (CDB). Control of resources within Maintenance Windows in Oracle is also controlled by the Resource Manager.
How to reduce this wait​
Review the resource manager configuration and throttling information to ensure appropriate resources are given to your database. To reduce this wait, raise the I/O limits for the PDB in question. Review MAX_IOPS
and MAX_MBPS
for your PDB_ID
You may see resmgr
waits appearing if you have enabled scheduled maintenance window.
Additional Links​
- Oracle Reference Manual - resmgr:I/O rate limit
- Oracle Administrator's Guide - Managing Resources with Oracle Database Resource Manager
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