RE: Oracle 817 freezing

Is there a large transaction rolling back?  

Try this query:  

select s.username, s.sid, t.addr, t.status, t.used_ublk, decode(bitand(t.flag,128),0,'NO','YES') rolling_back from v$session s, v$transaction t where s.taddr=t.addr;

From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Richard J. Goulet  

    3: Database will not shutdown immediate even after half an hour of waiting. Must use shutdown abort.

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