20080617 ejabberd and erlang
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![ejabberd の仕組み と erlang のすごいところ ,[object Object]](https://image.slidesharecdn.com/20080617ejabberd-1213854748260515-9/85/20080617-ejabberd-and-erlang-1-320.jpg)
![jabber.jp について ,[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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20080617 ejabberd and erlang
- 3. XMPP プロトコル c2s connection s2s connection client jabber.jp client client gmail.com twitter.com client client client
- 4. ejabberd のプロセスモデル ejabberd_sup ejabberd listeners listeners_sup receiver_sup 5222 5223 5269 client2 receiver client1 router router_sup local_sup local
- 5. ejabberd の冗長化 node2 node3 node1 IPVS TCP 5222(c2s) TCP 5223(c2s/ssl) TCP 5269(s2s) ejabberd ejabberd mnesia ejabberd mnesia mnesia
- 6. mnesia レプリケーション ノード 1 ノード２ マルチマスター レプリケーション dirty_write dirty_read write read
- 8. 対応策 障害発生 障害発生 落ちた方が良いのかも 僕たちは 大丈夫! ノード 1 ejabberd ノード 2 ejabberd ノード 3 ejabberd
- 11. おしまい