Nice script Jared! Now the question is, how should these orphan processes be dealt? ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jared Still Sent: Friday, June 01, 2007 4:12 PM To: tanmoydc@xxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Finding orphan sessions On 5/22/07, Tanmoy <tanmoydc@xxxxxxxxx> wrote: Hi, We have a requirement where we need to find the Orphan session in DB. Well, it happened some time back when one of our job get killed after reaching its max time, but it's thread processes were running, so we need a monitoring sql to check such process who does not have any parent. Possible ? When joining v$session to v$process the v$process.spid column should have a value (node process ID). If this is null, that is generally an orphaned session. Always has been in my experience anyway. Jared col username heading 'USERNAME' format a10 col sessions heading 'SESSIONS' col sid heading 'SID' format 999 col status heading 'STATUS' format a10 col machine format a10 head 'MACHINE' col client_program format a20 head 'CLIENT PROGRAM' col server_program format a20 head 'SERVER PROGRAM' col spid format a5 head 'SRVR|PID' col serial# format 99999 head 'SERIAL#' col client_process format 999999 head 'CLIENT|PID' col osuser format a7 col logon_time format a17 head 'LOGON TIME' col idle_time format a11 head 'IDLE TIME' col ppid format 999 head 'PID' set recsep off term on pause off verify off echo off set line 200 set trimspool on clear break break on username skip 1 select s.username, s.sid, s.serial#, p.pid ppid, s.status, s.machine, s.osuser, substr(s.program,1,20) client_program, s.process client_process, substr(p.program,1,20) server_program, p.spid spid, to_char(logon_time, 'mm/dd/yy hh24:mi:ss') logon_time, -- idle time -- days added to hours --( trunc(LAST_CALL_ET/86400) * 24 ) || ':' || -- days separately substr('0'||trunc(LAST_CALL_ET/86400),-2,2) || ':' || -- hours substr('0'||trunc(mod(LAST_CALL_ET,86400)/3600),-2,2) || ':' || -- minutes substr('0'||trunc(mod(mod(LAST_CALL_ET,86400),3600)/60),-2,2) || ':' || --seconds substr('0'||mod(mod(mod(LAST_CALL_ET,86400),3600),60),-2,2) idle_time from v$session s, v$process p where s.username is not null -- use outer join to show sniped sessions in -- v$session that don't have an OS process and p.addr(+) = s.paddr -- uncomment to see only your own session --and userenv('SESSIONID') = s.audsid order by username, sid /