Hi, On 6/22/2006 1:55 PM, Kern Sibbald wrote: > On Monday 19 June 2006 22:11, Arno Lehmann wrote: ... >>>The Backup machine has 2 Gbyte of Ram and 4 Gbyte of swap. During >>>building the dir tree the phsysical Ram is only 50Mbyte and the swap has >>> only 50% of his capacity. With "sar -r" i followed the rising memory >>>allocation of bacula-dir but in the last 50 minutes it stay at 50% and >>>crahes. >> >>This is, unfortunately, a known issue (which obviously becomes more >>serious as Bacula is used in bigger and bigger installations). > > > Whoa. There is NO known issue of Bacula crashing during the building of the > tree. Users with underpowered machines or inefficiently tuned machines have > experienced some excessive waits for the tree to build. However, there are > users with 6 Million files who are able to use the restore in a reasonable > time.
I'm quite sure I recall reading about crashes... and even if they arise from a database problem it's quite related to Bacula in that case. Anyway, using the term 'issue' I didn't want to imply that there's a programming bug in Bacula, rather that this is a limitation that is known and can not easily be overcome. I know what I'm writing about, my backup machine is also seriously underpowerded ;-) > > >>If I understand it correctly, Kern has some ideas how to handle this >>problem but will probably not work on it really soon. > > > The most effective solution for the moment it to ensure that everything is > properly tuned -- especially for the SQL engine, and if I am not mistaken > that is documented ... Hmm. The only performance tuning hints in the manual I could find are rather cursory: "For MySQL, what seems to be very important is to use the examine the my.cnf file. You may obtain significant performances by switching to the my-large.cnf or my-huge.cnf files that come with the MySQL source code." While the above is definitely right, I suspect that tuning MySQL can be much more sophisticated. Unfortunately, I have no idea what to do with this goal. Arno -- IT-Service Lehmann [EMAIL PROTECTED] Arno Lehmann http://www.its-lehmann.de Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
