Distributed lock implementation of. NET Distribution architecture

Distributed locks

Often used to resolve business consistency and coordinate distributed environments in distributed environments.

The actual business scenario, for example, to solve the concurrency of a single moment to repeat the order, repeat confirmation of receipt, re-discovery of gold coupons.

Scenarios that use distributed locks are generally not too many.

Open Source Address: Http://git.oschina.net/chejiangyi/XXF.BaseService.DistributedLock

Open source related groups:. NET open source basic services 238543768

This c#.net the implementation of Redis distributed locks and zookeeper distributed locks for research only. (There may be bugs)

Using Servicestack.redis to implement Redis distributed locks

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Redisdistributedlock (Redisserver, Lockresult Trygetdistributedlock (TimeSpan) Getlocktimeout, TimeSpan? (Lockresult = = distributedlockexception (=. _lock = =.) Format (= (. _lock! = (_client! =). Format (

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Java implementation of Redis distributed locks from the network (C # Edition)

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      redisdistributedlockfromjava ( redisserver,    Lockresult trygetdistributedlock (timespan? getlocktimeout, timespan?  (lockresult ==   distributedlockexception (                  taskexpiredMilliseconds =  (taskruntimeout !=  ?  () taskruntimeout.value.totalmilliseconds :  ( getlockexpiredMilliseconds =  ( getlocktimeout !=  ?  () getlocktimeout.value.totalmilliseconds :   hassleepmilliseconds =   (  ( redisclient = value =  Currentunixtimemillis ()  + taskexpiredMilliseconds +                            acquired = redisclient. Add<> (@lock, Value, timespan.frommilliseconds (taskexpiredmilliseconds +                           ( acquired == =                              oldvaluebytes =                                (oldvaluebytes !=  &&  bitconverter.toint64 (oldvaluebytes, )  <                                   getvaluebytes = o1 = redisclient. Expireentryin (@lock,  timespan.frOmmilliseconds (taskexpiredmilliseconds + distributedlockconfig.tasklockdelaycleepuptime));=                                  =                              =                       (lockresult ==                       (hassleepmilliseconds  >==+=. Format (=   () (System.datetime.utcnow -  system.datetime (,  , , , ,      (lockresult == lockresult.success | |  lockresult == current =&nBSP; ( redisclient = v =  (v !=                                 (Current < bitconverter.toint64 (v, . Format (

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Servicestack.redis Internal Implementation version (older)

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      redisdistributedlockfromservicestack ( redisserver,    Lockresult trygetdistributedlock (timespan? getlocktimeout, timespan?  (lockresult ==   distributedlockexception (  ( redisClient ==>                                                                        lockString =  (Expiretime.tounixtimems ()  +                                    =   lockexpirestring = redisclient.get<>  (!. TryParse (lockexpirestring,                                                                                                                        trans. Queuecommand (r =>                                        (t == ==. Format (=    ( redisclient =. Format (

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Zookeeper Release for distributed locks

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       root = ;            lockName;           waitNode;            myZnode;           timespan sessiontimeout = timespan.frommilliseconds ( IList<Exception > exception =  List<Exception>                                                                        zookeeprdistributedlockfromjava ( config, .lockName =      &Nbsp;      =  zookeeper (Config, sessiontimeout,  stat  = zk. Exists (root,   (stat ==                      zk. Create (root,  [                                        (.autoevent !=    splitstr =                  myznode = zk. Create (root +  + lockname + splitstr,  [+                  ilist<> subnodes  = zk. GetChildren (root,                 ilist<> lockobjnodes =   List<>  ( node =+  + lockObjNodes[  (Myznode.equals (root +   + lockObjNodes[                                        submyznode = myznode.substring (MyZnode.LastIndexOf (,  stringcomparison.ordinal)  + = lockobjnodes[array.binarysearch (AlockObjNodes, subMyZnode)  -      (    waitforlock (&NBSP;STAT&NBSP;=&NBSP;ZK. Exists (root +  + lower,                (stat !=  + system.threading.thread.currentthread.name +   + root + &nbSp;+=  autoresetevent ( r ==                      +-=

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The above code is only for reference, not pressure test.

Code paste some issues, please download Open source package run research.

Distributed lock implementation of. NET Distribution architecture