Hello, Several users have reported that the Director consumes huge amounts of memory when running large numbers of simultaneous jobs. Actually, the Director needs something like between 80-100 K per job depending on the exact timing of that job. This amount of memory per job is really quite small by any standards.
Normally, Bacula does not lose memory when it is running because it has code integrated that detects memory loss. However, system libraries that Bacula uses (such as glibc, mysqlclient, ...) are not covered by Bacula memory loss techniques (I call them orphanned buffer detection). As a consequence, I ran Bacula under valgrind and found a rather large memory loss in Bacula's mysql interface. In looking at the code, I believe that the code is correct, but perhaps I am misunderstanding their document. Anyway, I've implemented a workaround in Bacula version 2.1.8 that ensures that the memory will not be lost. At this point, I am not 100% sure if the problem is a MySQL change, a MySQL bug, or a Bacula bug, but it is now fixed. This fix should resolve the problems that you have been seeing, where basically the memory lost depended on the number of files backed up and the number of Jobs run. The short term workaround is to restart the Director from time to time, if you are having the problem. The longer term solution is to upgrade to version 2.1.8 in a few days when it is released -- however, please remember it is BETA code. The official release of 2.2.0 should be in about a month or two depending on how well 2.1.8 testing goes. Best regards, Kern PS: there was also a problem in SQLite, which I also fixed. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
