Re: DB 7.21 (HP-UX 10.20) hangs while backup

Fco. Rafael Santos M'ndez wrote: > > WKlaus@sip.de escribi' en mensaje <3539FBDA.3616@sip.de>... > >We do a backup with onbar suddenly the Database processes hang > > > >When I start for example onstat -l the process hangs and i couldn't > >kill this process with kill -9. I can't kill any informix > >process with kill -9. I must do a reboot. > >After the reboot the Database starts correct until I do a backup. > > > >What could be the problem. > > > >Wolfgang Klaus > > We had the same problem, but Informix hang anytime, > aproximatly once a week. > > We have Informix 7.23 on HP-UX 10.10, RESIDENT = 0, KAIOON = 1 > > After asking Informix and HP, we finaly turned off KAIO and since then > haven't had any problem. As a point of interest, did you check the release notes? I thought on HPUX you had to set SHM resident in order to use KAIO. Also check all other kernel settings in the release notes. I have also seen the use of KAIO lock up the server, before these parameters were set according to the release notes. Hope that helps, -- Mark. +----------------------------------------------------------+-----------+ |Mark D. Stock - Informix SA http://www.informix.com |//////// /| |mailto:mdstock@informix.com FAQ http://www.iiug.org |///// / //| | +-----------------------------------+//// / ///| | Tel: +27 11 807 0313 |If it's slow, the users complain. |/// / ////| | Fax: +27 11 807 2594 |If it's fast, the users keep quiet.|// / /////| |Cell: +27 83 250 2325 |Therefore, "No news: travels fast"!|/ ////////| +----------------------+-----------------------------------+-----------+