Re: Removing semaphore shared memory segment aborts other informixservers

On Dec 15, 11:22 pm, Fernando Nunes <domusonl...@gmail.com> wrote: > On 14-12-2010 13:41, red_valsen wrote: > > > Due to an interrupted ontape restore, I was left with a down > > informixserver with its shared memory segments still being reported by > > ipcs.  I carefully removed all the segments using ipcrm, being careful > > not to remove any used by the other two instances on the host, but > > when I removed a semaphore segment from the fouled instance, the other > > two abruptly crashed with "Assert Failed: semop: errno = 36" messages > > appearing in the Informix message logs for each. > > > Has anybody else experienced this?  I can find no mention of this > > behavior in Informix manuals, online, etc.  I assume that in some way > > the other instances are using that segment of memory. > > > Using IDS 11.50.FC4 on HPUX 11.23 (memory management with this O/S has > > always seemed problematic). > > errno 36 is "removed identifier". > I never experienced this. > It's hard not to think that you removed the wrong set... > On the other hand you say you had other two instance crashing... It > would be easier to accept a mistake if it only affected one... > > This would never be mentioned in the manuals, because if anything it > would be a bug... > > Please use onclean as already suggested. > Regards. Anyone remember who RVH was again (0x525648). What was his actual name rather than just the bloke who worked on memory. Ron ...? http://publib.boulder.ibm.com/infocenter/idshelp/v115/index.jsp?topic=/com.ibm.admin.doc/ids_admin_1218.htm http://publib.boulder.ibm.com/infocenter/idshelp/v115/index.jsp?topic=/com.ibm.adref.doc/ids_adr_1073.htm

On Sat, Dec 18, 2010 at 06:35, PeterP <peterpain@gmail.com> wrote: > Anyone remember who RVH was again (0x525648). What was his actual name > rather than just the bloke who worked on memory. Ron ...? > Roy V Harrington, one of the co-founders of Relational Database Systems, RDS - the original name of the company that produced C-ISAM and Informix. -- Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h> Guardian of DBD::Informix - v2008.0513 - http://dbi.perl.org "Blessed are we who can laugh at ourselves, for we shall never cease to be amused."