ORAAGENT or ORAROOTAGENT High Resource (CPU, Memory etc) Usage
Last updated on JANUARY 30, 2018
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 and later
Information in this document applies to any platform.
11gR2 Grid Infrastructure oraagent.bin or orarootagent.bin process uses high CPU, memory and threads. If the cluster node is up and running for very long time, it could exhaust memory and swap space which could result in node eviction or other stability issue.
With OS "top" or other memory monitoring tool, we can see huge virtual memory is allocated and increasing over time:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7242 oracle 18 0 308g 953m 14m S 83.2 0.7 166:28.72 oraagent.bin
In above example, 308GB of virtual memory is allocated to the agent process while it's consuming 83.2% of CPU.
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