github_22808831-优快云博客

原创 akka mutable state change example

class MutableStateActor extends Actor {var state = ...override def preStart() = {//you can also use for yield/await.result here, it's fine...state = ...}override def receive = {case ...

2015-01-06 11:10:37 354

原创 http error code

Just for my reference purpose.200 Ok, all except for post201 post success with location return202 async return204 no content, normally delete use it304 not modified.client side err

2014-12-22 09:03:55 496

原创 rest api best practise

Mainly cited from http://www.vinaysahni.com/best-practices-for-a-pragmatic-restful-api with my thinking.1.always use nouns.2.always use ssl.3.prefer post to put.4.version your api.5.inte

2014-12-21 13:03:03 395

原创 Some thinking about scala concurrency compare to java

Prefer the java.util.concurrent packages to either low-level wait-notify, custom locking/synchronization, or higher level scala-specific primitives. The util.concurrent stuff is well thought out and a

2014-11-29 14:01:46 362

原创 note of kafka learning (first part, before replication)

sequential disk access can in some cases be faster than random memory access!The memory overhead of objects is very high, often doubling the size of the data stored (or worse).Java garbage col

2014-11-29 07:11:54 415

转载 job requirements

You should have hands-on development experience building distributed, Internet-scale systems, building and applying frameworks for caching, queuing, RPC, parallelism, and distributed data storage.Yo

2014-11-03 12:01:50 583

原创 scala unclear features to me...

(the followings are all unclear features to me...)1. mixin class component2. sequence comprehension3. extractor objects(the followings are all unclear features)2. mixin class c

2014-11-03 11:48:49 286