Database Administration (MOSC)

MOSC Banner

Orphaned user-processes

edited Apr 16, 2013 5:51AM in Database Administration (MOSC) 5 commentsAnswered
Hello all

We have recently move one of our more critical databases from 10.2.0.5 on HP-UX to 11.2.0.2 on Win-x64. We have had a few incidents where user processes get orphaned and consume a full cpu-core. We can see that Oracle.exe consumes the cpu, but Oracle itself reports the consumption as non-db in OEM.

I can find the processes using this sql: select p.spid from V$process P where P.Addr not in (select S.Paddr from V$session S) and P.Program = 'ORACLE.EXE (SHAD)'

I can then kill the threads in Process Explorer (Sysinternals).

The behaviour looks like a bug to me. Any thoughts on how to find the root cause? Any known bugs that could explain it?

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center