There are many things that can go bad with cron. The problem is that is a job locks a resource, the next jobs starts and finds the recource locked, etc etc. eventually you run out of memory with lots of locked processes. It may be a missing unlock, a missing commit, a race conditions, etc. My advice is do not use cron but a single background process
On Jul 27, 4:19 pm, Phyo Arkar <[email protected]> wrote: > After disabling cron i dont experience freeze so far (now 3rd day) > > So why Cron causes freeze? > > On 7/24/11, Massimo Di Pierro <[email protected]> wrote: > > > > > > > > > does it freeze without cron? > > > On Jul 24, 4:29 am, Phyo Arkar <[email protected]> wrote: > >> Web2py seems to be freezing (One CPU using 100%) Randomly. The > >> pages are only normal web pages with database access (simple Select > >> Query). > > >> I cannot reproduce the problem but it happens like every 3-4 days. > >> Also Admin freeze while doing cron jobs (Cleaning expiring sessions) , > >> so i had to start with -N disabling cron jobs. > > >> For easy deployment for users i use web2py directly only , no other > >> http servers used.
