Re: pylibmc vs python-libmemcached vs cmemcache
On Thu, Sep 24, 2009 at 3:59 AM, Jehiah Czebotar wrote: > > It seems there are 3 memcached libraries for python now that wrap the > c libmemcached for use in python. > > pylibmc - http://lericson.blogg.se/code/category/pylibmc.html > python-libmemcached - http://code.google.com/p/python-libmemcached/ > cmemcache - http://gijsbert.org/cmemcache/index.html > > Is anyone using these in a heavy production environment, are any more > reliable than any others? I havn't seen much discussion about any of > these in the list archives. > > cmemcache lists some known problems (even important things like > crashing on disconnects) > pylibmc seems newer and appears to have the most active development > > thoughts? As the developer and maintainer of python-libmemcached, douban.com has been using it in production for over years. We serve 20M+ pageview per day and the python-libmemcached is pretty stable. As for the development, we are coding and testing the UDP and binary protocol support nowadays, and will release the new version after that. We've read Amix's benchmark at http://amix.dk/blog/viewEntry/19471 and appreciate him to point out the performance issue under multi-thread environment. As our usage is under single-thread environment, we haven't pay too much effort to optimize it in that condition. We'll take time to dig it out, but patches are welcome. Anyway, Pyrex is much easier to read & write for python programmers than pure C (Compare python-libmemcached's 609 lines of pyx code with pylibmc's 940 lines of C code. Not mention nearly 180 lines of the pyx code are just re-declaration of C function prototype, not logic). -- Qiangning Hong
Re: pylibmc vs python-libmemcached vs cmemcache
On Wed, Sep 23, 2009 at 4:45 PM, dormando wrote: > > I've not seen pylibmc yet, dunno which one is better... > You can discount 'cmemcache' outright, since it's based off of the > deprecated 'libmemcache' C library. Both were buggy. > thanks; i missed the character difference on the underlying cmemcache library, so that is now off my list
Re: pylibmc vs python-libmemcached vs cmemcache
On Wed, Sep 23, 2009 at 8:40 PM, David Stanek wrote: > > On Wed, Sep 23, 2009 at 4:27 PM, Jehiah Czebotar wrote: >> >> I've been happily using python-memcached as well for a long time and >> have contributed code to it; i am however specifically asking about >> python-libmemcached, the one based on libmemcached not the pure python >> client. (it is unfortunate that those two names are so similar) >> > > Any reason you are contemplating moving to a C-based library? > yes; the reason is that i have code in python, c and tcl which i want to all use the same underlying library; and share the same cache pool and data. I understand the potential serialization problems with that and have a handle on that; but i thought it would be least error prone if i could use libmemcached across all three with the same hashing algorithm, same use of flag values, etc. -- Jehiah
Re: pylibmc vs python-libmemcached vs cmemcache
On Wed, Sep 23, 2009 at 4:27 PM, Jehiah Czebotar wrote: > > I've been happily using python-memcached as well for a long time and > have contributed code to it; i am however specifically asking about > python-libmemcached, the one based on libmemcached not the pure python > client. (it is unfortunate that those two names are so similar) > Any reason you are contemplating moving to a C-based library? -- David blog: http://www.traceback.org twitter: http://twitter.com/dstanek
Re: pylibmc vs python-libmemcached vs cmemcache
I've not seen pylibmc yet, dunno which one is better... You can discount 'cmemcache' outright, since it's based off of the deprecated 'libmemcache' C library. Both were buggy. On Wed, 23 Sep 2009, Jehiah Czebotar wrote: > > It seems there are 3 memcached libraries for python now that wrap the > c libmemcached for use in python. > > pylibmc - http://lericson.blogg.se/code/category/pylibmc.html > python-libmemcached - http://code.google.com/p/python-libmemcached/ > cmemcache - http://gijsbert.org/cmemcache/index.html > > Is anyone using these in a heavy production environment, are any more > reliable than any others? I havn't seen much discussion about any of > these in the list archives. > > cmemcache lists some known problems (even important things like > crashing on disconnects) > pylibmc seems newer and appears to have the most active development > > thoughts? > > -- > Jehiah >
Re: pylibmc vs python-libmemcached vs cmemcache
On Wed, Sep 23, 2009 at 4:11 PM, David Stanek wrote: > > On Wed, Sep 23, 2009 at 3:59 PM, Jehiah Czebotar wrote: >> >> It seems there are 3 memcached libraries for python now that wrap the >> c libmemcached for use in python. >> >> pylibmc - http://lericson.blogg.se/code/category/pylibmc.html >> python-libmemcached - http://code.google.com/p/python-libmemcached/ >> cmemcache - http://gijsbert.org/cmemcache/index.html >> >> Is anyone using these in a heavy production environment, are any more >> reliable than any others? I havn't seen much discussion about any of >> these in the list archives. >> >> cmemcache lists some known problems (even important things like >> crashing on disconnects) >> pylibmc seems newer and appears to have the most active development >> >> thoughts? >> > > We (at my day job) have been happily using python-memcached[0] in > production for at least a year now. Our sites get a pretty good amount > of traffic. What is your definition of heavy? > > [0] http://www.tummy.com/Community/software/python-memcached/ > I've been happily using python-memcached as well for a long time and have contributed code to it; i am however specifically asking about python-libmemcached, the one based on libmemcached not the pure python client. (it is unfortunate that those two names are so similar) -- Jehiah
Re: pylibmc vs python-libmemcached vs cmemcache
On Wed, Sep 23, 2009 at 3:59 PM, Jehiah Czebotar wrote: > > It seems there are 3 memcached libraries for python now that wrap the > c libmemcached for use in python. > > pylibmc - http://lericson.blogg.se/code/category/pylibmc.html > python-libmemcached - http://code.google.com/p/python-libmemcached/ > cmemcache - http://gijsbert.org/cmemcache/index.html > > Is anyone using these in a heavy production environment, are any more > reliable than any others? I havn't seen much discussion about any of > these in the list archives. > > cmemcache lists some known problems (even important things like > crashing on disconnects) > pylibmc seems newer and appears to have the most active development > > thoughts? > We (at my day job) have been happily using python-memcached[0] in production for at least a year now. Our sites get a pretty good amount of traffic. What is your definition of heavy? [0] http://www.tummy.com/Community/software/python-memcached/ -- David blog: http://www.traceback.org twitter: http://twitter.com/dstanek
pylibmc vs python-libmemcached vs cmemcache
It seems there are 3 memcached libraries for python now that wrap the c libmemcached for use in python. pylibmc - http://lericson.blogg.se/code/category/pylibmc.html python-libmemcached - http://code.google.com/p/python-libmemcached/ cmemcache - http://gijsbert.org/cmemcache/index.html Is anyone using these in a heavy production environment, are any more reliable than any others? I havn't seen much discussion about any of these in the list archives. cmemcache lists some known problems (even important things like crashing on disconnects) pylibmc seems newer and appears to have the most active development thoughts? -- Jehiah
