memcached vs tugela

•

1 gostou•565 visualizações

Memcache : because
your database will
thank you
http://netuality.ro

Spot the
resemblance

Memcache stays quot;betweenquot; app servers
and db - dumb/fast server,
client quot;as smart as neededquot;

image © blogs.sun.com

Plan for success = no panic

image © www.jangro.com

3 implementations:

- quot;originalquot; memcached
by Danga
danga.com/memcached/

- tugela memcache
(bdb, Wikipedia)
http://tinyurl.com/26jx5e

- memcachedb (bdb,
replicated, student
project on Google Code,
unstable)

- lots of contributions
(Facebook, LastFM)

Memcached vs Tugela

- quot;normalquot; conditions, enough memory
- negligible overhead

Memcached vs Tugela
- on a memory-constrained server
- 100/1000 simultaneous threads (stackless Python)
- ... and yet Tugela massively kicks ass

Tugela gotchas

- “no expiry policy management” = NO PURGING,
ITEMS DO EXPIRE

- but project not maintained any more. Forks
welcomed by the author (Domas Mituzas).

PHP programmer ?

- use UDP and consistent hashing implementation
from PECL, truly rocks
memcache.hash_strategy = consistent

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memcached vs tugela

1. Memcache : because your database will thank you http://netuality.ro

2.

3. Spot the resemblance

4. Memcache stays quot;betweenquot; app servers and db - dumb/fast server, client quot;as smart as neededquot; image © blogs.sun.com

5. Plan for success = no panic image © www.jangro.com

6. 3 implementations: - quot;originalquot; memcached by Danga danga.com/memcached/ - tugela memcache (bdb, Wikipedia) http://tinyurl.com/26jx5e - memcachedb (bdb, replicated, student project on Google Code, unstable) - lots of contributions (Facebook, LastFM)

7. Memcached vs Tugela - quot;normalquot; conditions, enough memory - negligible overhead

8. Memcached vs Tugela - on a memory-constrained server - 100/1000 simultaneous threads (stackless Python) - ... and yet Tugela massively kicks ass

9. Tugela gotchas - “no expiry policy management” = NO PURGING, ITEMS DO EXPIRE - but project not maintained any more. Forks welcomed by the author (Domas Mituzas). PHP programmer ? - use UDP and consistent hashing implementation from PECL, truly rocks memcache.hash_strategy = consistent