Re: [naviserver-devel] Cache is broken

[Vlad S. <vl...@cr...>]

Definitely, i just recompiled NS on working server with recent version 
and started crashing on ns_cache. This is the showstopper.

Zoran Vasiljevic wrote:
> 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
> 
> 
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-- 
Vlad Seryakov
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