RE: Defunct processes in 10g(mmon and qmnc)
- From: "Jesse, Rich" <Rich.Jesse@xxxxxx>
- To: "ORACLE-L" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 27 Apr 2006 11:44:03 -0500
Yup. 10.1.0.4 on Solaris 9. The defuncts death spiraled until we ran
out of OS process slots and I had to bounce the instance. All 10000+
processes that I saw were from MMON. And this was on a production box.
From the SR: "Development indicates that the MMON messages occur when
manageability features like automatic snapshots stop if one executes
'alter system enable restricted session' and then 'alter system disable
restricted session'."
I had not touched any of the ADDM stuff in this database, so I'm not
exactly buying the answer, but YMMV.
GL!
Rich
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Sriram Kumar
Sent: Thursday, April 27, 2006 9:25 AM
To: ORACLE-L
Subject: Defunct processes in 10g(mmon and qmnc)
Hello Gurus,
Environment: 10.1.0.4
OS : Solaris 9 (Sunfire V440)
Was casually checking process listing of oracle id and found a
lot (about 70-80 processes) of <defunct> processes and most of these
processes have thier PPID as qmnc' s (queue monitor) or mmon's (mem mon)
process id. being a test box I had killed qmnc and mmon and these
processes disappeared.
I am closely monitoring the systems for these symptoms again and
plan to raise a SR with metablink. Have any one of you seen this before?
Best Regards
Sriram Kumar
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