Re: Memcached/repcached: the need for repcached

2014-08-06 Thread Hirotaka Yamamoto
Hi, memcached can be used for various purposes other than caching. For instance, we store session data in our memcached clone ( https://github.com/cybozu/yrmcds ). Thanks to its high performance, a single server can serve all ( 10 millions) sessions. However, if the server crashes, all

Remove certain items from the cache

2014-08-06 Thread audric bizouarn
Hello there, There he has a method to be able to remove items from the cache using a regular expression on the key. For example we want to remove all the key as my_key_ *? We try to parse all the slabs with the command stats cachedump but our slabs contain several pages and it is impossible

RE: Remove certain items from the cache

2014-08-06 Thread Jason CHAN
Hi, It does not matter that a slabs contain several pages, as it dump all the keys in the LRU list in the slab. But the maximum dump memory is 2M, so it is possible that not all the keys in the slab are dump. (Of course you can change this limitation in function do_item_cachedump).

Re: Remove certain items from the cache

2014-08-06 Thread audric bizouarn
Hi, I'll change this limitation in function do_item_cachedump! Thanks! We also thought to save the keys in database but we are too many keys adding and deleting operation. Le mercredi 6 août 2014 10:11:24 UTC+2, Zhiwei Chan a écrit : Hi, It does not matter that a slabs contain several

Re: Memcached/repcached: the need for repcached

2014-08-06 Thread PenguinWhispererThe
Not sure if that's the case. If it's repcached then you can read and write values to both nodes. So you have active-active. DRBD is a shared block device. However repcached/memcached is in memory so not sure what those 2 have to do with each other. Op dinsdag 5 augustus 2014 18:22:19 UTC+2

Re: Memcached/repcached: the need for repcached

2014-08-06 Thread PenguinWhispererThe
I understand that in most cases you don't need this. However to me it doesn't look like a seperate project (as it's bound to memcached, and can't be used standalone). Actually more like an enhancement/feature. In that case distros would distribute the binarie packages without this capability

Re: Memcached/repcached: the need for repcached

2014-08-06 Thread PenguinWhispererThe
I found out we use it as some sort of temporary storage. So not actually as a layer in between. If one of the memcached nodes goes down we would loose this information (mostly only needed for a few minutes) and for compliancy we can't write this data to disk. Op woensdag 6 augustus 2014

Export Control Classification Number (ECCN) of memcached 1.4

2014-08-06 Thread skt8u6vg
Dear All, I'm developing a system using memcached 1.4 and I'll release it to the other country (Italy). Could you please give me, the US Export Control Classification Number (ECCN) of memcached 1.4 ? I understand that there is no ECCN for Open Source software basically. Could you please

Re: Export Control Classification Number (ECCN) of memcached 1.4

2014-08-06 Thread dormando
I have no idea what you're talking about. On Wed, 6 Aug 2014, skt8u...@gmail.com wrote: Dear All, I'm developing a system using memcached 1.4 and I'll release it to the other country (Italy). Could you please give me, the US Export Control Classification Number (ECCN) of memcached 1.4 ?