Sorry, I was shooting from the hip there. You may want to examine the dba_kgllock view. The following bit of SQL was taken from article 169139.1 on MetaLink, and may be useful in pinning down the problem. select /*+ ordered */ w1.sid waiting_session, h1.sid holding_session, w.kgllktype lock_or_pin, w.kgllkhdl address, decode(h.kgllkmod, 0, 'None', 1, 'Null', 2, 'Share', 3, 'Exclusive', 'Unknown') mode_held, decode(w.kgllkreq, 0, 'None', 1, 'Null', 2, 'Share', 3, 'Exclusive', 'Unknown') mode_requested from dba_kgllock w, dba_kgllock h, v$session w1, v$session h1 where ( ( (h.kgllkmod != 0) and (h.kgllkmod != 1) and ((h.kgllkreq = 0) or (h.kgllkreq = 1)) ) and ( ( (w.kgllkmod = 0) or (w.kgllkmod= 1) ) and ( ( w.kgllkreq != 0) and (w.kgllkreq != 1) ) ) ) and w.kgllktype = h.kgllktype and w.kgllkhdl = h.kgllkhdl and w.kgllkuse = w1.saddr and h.kgllkuse = h1.saddr / On 7/6/05, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote: > > Jared > Thanks for quick reply. I had no record in both blockers and Waiters > view. I had killed the session appeared in DBa_jobs_running and even killed > the snp_process and now I am not getting any snp process started even the > Job_queue_process are 8. > ANy suggestions. Lock are still same for all sid appeared in > Dba_jobs_runing and appeared in v$session_wait > Thanks > Sanjay > > *Jared Still <jkstill@xxxxxxxxx>* wrote: > > Have you examined dba_blockers/dba_waiters to see which session is causing > the contention? > > Maybe it needs to be killed? > > We have a similar issue at times with a misbehaving app. The processes on > the app server > dies, leaving a lock on a table. > > TCP being what it is, the database never knows that the client process has > died, and we > ( meaning me) must go kill the process. > > Yes, I have a potential work-around for that, still waiting for user > testing. > > Jared > > > On 7/6/05, Sanjay Mishra <smishra_97@xxxxxxxxx> wrote: > > > > I have several of these shown in the v$session_wait. Any idea as what > > need to be done. SOme of the them are linked to mine Job QUeue process. So > > all 7 Job processa re hanged and each have is showing this lock > > TIA > > Sanjay > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com > > > > > > -- > Jared Still > Certifiable Oracle DBA and Part Time Perl Evangelist > > __________________________________________________ > Do You Yahoo!? > Tired of spam? Yahoo! Mail has the best spam protection around > http://mail.yahoo.com > -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist