pubsub

. Runlock () return Ret}func (ch *channel) Notify (message string) bool {ch. Rlock () defer ch. Runlock () for CID, _: = Range ch.clients {ch. Replymsg (FMT. Sprintf ("channel:%s client:%d message:%s", ch. Name, CID, message))}return true}func (ch *channel) replymsg (mesSage string) {Ch.waitGroup.Wrap (func () {fmt. PRINTLN (Message)})}func (ch *channel) Wait () {ch.waitGroup.Wait ()}func (ch *channel) Exiting () bool {return atomic. LoadInt32 (ch.exitflag) = = 1}func (ch *channel) Exit () {if!a

Some data pushes need to be in observer mode (also known as subscriber mode) to see how Docker implements this with GolangOver the data structure type Events struct {mu sync. Mutex//Lock events []*jsonmessage. Jsonmessage//Data pub *pubsub. Publisher//Publisher}type publisher struct {m sync. Rwmutex buffer int//buffer timeout time. Duration//Timeout subscribers map[subscriber]struct{}//Subscriber map structure for easy traversal of map}As a subscriber

applications, and in different scenarios, only configuration files can be modified to accommodate complex deployment environments.3.Connect n-to-n via Fanout, PubSub, Pipeline, request-reply.provide multiple-to-one, publish/subscribe (one-to-many), Pipeline (one-to-one), request/response models in a multi-to-many network environment. mode, or mode.(For the word fanout, I do not fully understand, I think in the network communication, it should be more

NotoginsengZset-max-ziplist-entries - -Zset-max-ziplist-value - the activerehashing Yes +Client-output-buffer-limit Normal0 0 0 AClient-output-buffer-limit slave 256MB 64MB - theClient-output-buffer-limit pubsub 32MB 8MB - +HzTen -Aof-rewrite-incremental-fsync YesRedis-6661.conf:1 #包含通用配置2include/opt/redis/redis-common.conf3 #监听tcp端口4Port66615 #最大可用内存6 MaxMemory 100m7 #内存耗尽时采用的淘汰策略:8# VOLATILE-LRUremove the key with a expire set using an

functions1, modular(1) Load only the modules you want;(2) Extend the Ejabberd with a custom module.2. Security(1) Support the SASL and STARTTLS of C2s and S2S connections;(2) Support S2S connection of STARTTLS and Dialback;(3) Web management via HTTPS secure access.3. Database(1) Rapid deployment of the internal Database (Mnesia);(2) native MySQL support;(3) native PostgreSQL support;(4) Support ODBC data storage;(5) Support for Microsoft SQL Server.4. Verification(1) Internal verification;(2)

Timeout 0 Tcp-keepalive 0 LogLevel Notice Databases 16 Dir/opt/redis/data Slave-serve-stale-data Yes #slave只读 Slave-read-only Yes #not Use default Repl-disable-tcp-nodelay Yes Slave-priority 100 #打开aof持久化 AppendOnly Yes #每秒一次aof写 Appendfsync everysec The new write operation is fsync when the #关闭在aof rewrite No-appendfsync-on-rewrite Yes Auto-aof-rewrite-min-size 64MB Lua-time-limit 5000 #打开redis集群 cluster-enabled Yes #节点互连超时的阀值

', 'Client _ kill', 'Client _ list ', 'config _ get', 'config _ set', 'connection _ pool ', 'dbsize', 'debug _ object', 'desc', 'delete', 'echo ', 'eval', 'evalsha', 'execute _ command', 'exists', 'expire ', 'expireat', 'flushall', 'flushdb', 'from _ url ', 'GET', 'getbit ', 'getrange', 'getset', 'hdel', 'hexists', 'hget', 'hgetall', 'hincrby', 'hincrbyfloat ', 'hkeys', 'hlen', 'hmet ', 'hmset', 'hset', 'hsetnx', 'hvals', 'INC', 'encrbyfloat', 'info ', 'keys ', 'lastsave', 'lindex', 'linsert ',

example: Go Kit non-goal:supporting Messaging patterns other than RPC. But NYTimes needs to support messaging patterns other than RPC Go Kit Non-goal:be opinionated. But NYTimes needed a somewhat opinionated framework at NYTimes to unify a bunch of disparate services. Gizmo Packages Gizmo/server/metrics (based on Go kit metrics) Gizmo/pubsub As time goes on, the Gizmo's packages is starting to the look and the more like Go K

precedence over decoupling the message framework. Because of the complexity of reference between objects, the most easy to understand is the battle scene of World of Warcraft: A number of players on both sides to cooperate with each other, constantly cast attacks, auxiliary skills, the process of some heroes use props, and some were attacked lead to death. If you take a synchronous call, object A calls the object B,b call C,c after execution completes, it is very complicated to need to tell a

Psubscribe pattern [pattern ...] Subscribe to one or more channels that match a given pattern Punsubscribe [pattern [pattern ...]] Unsubscribe from the specified rules, and unsubscribe from all rules if no parameters are set PUBSUB subcommand [argument [argument ...] Viewing subscription and publishing system status Attention After executing the subscribe command, the client e

: Redis configuration fileDaemonize YesPidfile/var/run/redis.pidPort 12002Timeout 0Tcp-keepalive 0LogLevel NoticeLogFile stdoutDatabases 16Save 900 1Save 300 10Save 60 10000Stop-writes-on-bgsave-error YesRdbcompression YesRdbchecksum YesDbfilename Dump.rdbdir/www/redis_12002/Slave-serve-stale-data YesSlave-read-only YesRepl-disable-tcp-nodelay NoSlave-priority 100AppendOnly NoAppendfsync everysecNo-appendfsync-on-rewrite NoAuto-aof-rewrite-percentage 100Auto-aof-rewrite-min-size 64MBLua-time-lim

Environment: master:192.168.11.31slave:192.168.11.20:6379 and 6380Simulates two slave to replicate a master at the same time.Mater configuration:Daemonize YesPidfile/var/run/redis.pidPort 6379Tcp-backlog 511Timeout 0Tcp-keepalive 0LogLevel NoticeLogFile ""Databases 16Repl-diskless-sync NoRepl-diskless-sync-delay 5Repl-disable-tcp-nodelay NoLua-time-limit 5000Slowlog-log-slower-than 10000Slowlog-max-len 128Latency-monitor-threshold 0Requirepass Passw0rdNotify-keyspace-events ""Hash-max-ziplist-en

,zscore,zrank,zrevrank,zinter,zunion,zincrby,expireat,pexpire, - pexpireat,hget,hset,hsetnx,hdel,hlen,hkeys,hvals,hgetall,hexists, + Hincrby,hincrbyfloat,hmset,hmget,multi,discard,exec,pipeline,watch,unwatch, A Publish,subscribe,psubscribe,unsubscribe,punsubscribe,time,eval,evalsha,script,dump, at Restore,migrate,getlasterror,clearlasterror,_prefix,_serialize,_unserialize,client,scan,hscan, - Zscan,sscan,getoption,setoption,config,slowlog,gethost,getport,getdbnum,gettimeout, - Getreadtimeout,get

" -)"hash-max-ziplist-entries" -)" +" in)"Hash-max-ziplist-value" -)" -" to)"list-max-ziplist-entries" +)" +" -)"List-max-ziplist-value" the)" -" *)"set-max-intset-entries" $)" +" Panax Notoginseng)"zset-max-ziplist-entries" -)" -" the)"Zset-max-ziplist-value" +)" -" A)"Lua-time-limit" the)" the" +)"Slowlog-log-slower-than" -)"10000" $)"Slowlog-max-len" $)" -" -)"Port" -)"6379" the)"databases" -)" +" Wuyi)"Repl-ping-slave-period" the)"Ten" -)"Repl-timeout" Wu)" -" -)"m

var pubsub = (function () {var q = {} topics = {}, Subuid =-1; Publish Message Q.publish = function (topic, args) {if (!topics[topic]) {return;} var subs = Topics[topic], len = subs.length; while (len--) {subs[len].func (topic, args); } return this; }; Subscription Event Q.subscribe = function (topic, func) {Topics[topic] = Topics[topic]? Topics[topic]: []; var token = (++subuid). toString (); Topics[top

events mainly utilize the PubSub mode. Specifically, node's Eventemitter object, backbone's event model, and jquery's custom events.Principle: I wrote a custom event for jquery, and the basic principle is an event source, which simultaneously allows multiple places to respond synchronously. jquery version 1.7+ after priority use on2. The call and apply mechanisms also need to study TODOChapter III Promise objects and deferred objects1. Promise and de

() {// The instance maintains a Singleton application var instance; function init () {var privateVariable = I'm private; function privateMethod () {console. log (I'm private);} return {publicProperty: public, publicMethod: privateMethod};} return {getInstance: function () {if (! Instance) {instance = init ();} return instance ;};}) (); // method 2var mySingleton2 = function () {// cache instance var instance = this; // other content this. property = value; // rewrite the constructor mySingleton