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Home -> Community -> Mailing Lists -> Oracle-L -> RE: DB Freeze
Next time do sqlplus "/ as sysdba", then "oradebug setmypid", then
"oradebug dump systemstate 10" and then "oradebug tracefile_name" to find
out the name of the generated trace file. That is good enough for oracle.
If your platform is 64 bit HP-UX 11.0, then you need an OS patch. Included
is the note about it from the mighty and all-knowing oracle:
Article-ID: <Note:73835.1>
Circulation: PUBLISHED (EXTERNAL)
Folder: server.DBA.Admin
Topic: Alerts
Title: ALERT:HP-UX: ORA-7445 and Core Dump Generating Oracle
Stack
Trace
Document-Type: ALERT
Impact: MEDIUM
Skill-Level: NOVICE
Updated-Date: 03-MAY-2001 06:19:51
ORA-7445 and Core Dump Generating Oracle Stack Trace
Versions Affected
Platforms Affected
Description
Likelihood of Occurrence
Possible Symptoms
The alert.log will show something like: ORA-07445: exception encountered: core dump [11] [4286564440] [240] [0] [] []
The corresponding trace file will include the following in the stack:
_doprnt
_fprintf
U_get_previous_frame
skdstgframe
Error from U_get_previous_frame_x is 1
Stack is not Windable
Stack has no Unwind_descriptor
Workaround
Patches
This patch will be superceeded; please contact HP Support for detailed
patch
information.
Oracle must be relinked after applying this patch, as follows:
%cd $ORACLE_HOME/rdbms/lib
%make -f ins_rdbms.mk ioracle
The instance needs to be shutdown when relinking.
References
Note 43507.1 : ALERT: HP-UX Patch Levels Advised
Oracle WorldWide Customer
Support
> -----Original Message----- > From: Jamadagni, Rajendra [mailto:Rajendra.Jamadagni_at_espn.com] > Sent: Tuesday, May 21, 2002 4:00 PM > To: Multiple recipients of list ORACLE-L > Subject: DB Freeze > > > Last Friday, our 9012 database froze, I mean the only way we > could get in > was through sqlplus, no other tool would connect. We needed > to bring the > other side up as soon as possible so didn't spend any time running any > queries to see what was the problem. The other side (of the cluster) > wouldn't come up because it reported that some resource it needed was > locked. So we had to shot the pmon process. > > When analyzing the situation later, we found that Oracle didn't dump a > single useful trace file, so contacting OWS was pretty much > useless. OS logs > were clean, no alarms raised there. > > Has anyone encountered this situation that Oracle freezes and crashes > without any trace files? How does one collect useful > information in such > cases? Are there any tools that we could use to gather at-lease some > information before the DB crashes? > > Thanks in advance for any ideas and tips. > Raj > ______________________________________________________ > Rajendra Jamadagni MIS, ESPN Inc. > Rajendra dot Jamadagni at ESPN dot com > Any opinion expressed here is personal and doesn't reflect > that of ESPN Inc. > > QOTD: Any clod can have facts, but having an opinion is an art! > >
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Gogala, Mladen INET: MGogala_at_oxhp.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Tue May 21 2002 - 15:53:37 CDT
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