Am 05.06.2006 um 04:36 schrieb Vlad Seryakov:
Current cache implementation in naviserver is somewhat broken because
with recent version i cannot run my app under ns_cache_ and event with
old ns_cache module as well, i have crashes inside C level cache API,
but i use only Tcl api. Something was changed that influenced even
ns_cache because it used underlying C level cache of the core.
My app uses simple caches, just ns_cache eval, the difference that
this
is Network management system and it runs many many threads at the same
time using ns_job, so i am guessing that concurrency is what kills. It
works on older versions of NS 4.99.0|1 and AOL 4.0 using ns_cache, i
tried to convert it to internal ns_cache_family but it does not
work, it
hangs indefinitely, but works with ns_cache up until CVS version.
I also think it is the concurrency as I regulary have problems
(which I already described) and cannot point my finger at any
place. Simulating trouble-cases is also not simple (haven't got
the chance to do that), yet my application regulary breaks.
In my case, it is not crashing, rather error due to timeouts
waiting for lock which normally should not exist.
I think this will not be easy...
Cheers
Zoran
