Problem with Oracle Processes - ora_cjq0_<SID> and ora_qmnc_<SID>

Hello,

We are having problem with few Oracle Processes which are failing by themselves and also cosuming high CPU load. Few of the Processes are :

ora_cjq0_<SID>

ora_qmnc_<SID>

I did not find any relevant SAP Note about the above two Processes.

Could you please throw some light on the above two processes? Will they stop being acitve once their work is done?

Thanks,

Subbu