mq

Activemq

 

1. 一开始就是persistance的。用的replicated levelDB store
2. 性能的影响方面有
   1. topology
   2. protocols

 

Transport Connectors

wire protocol : openWire

 

tcp

nio:large number of clients, heavy network traffic to the broker

nio creates fewer threads and tcp connections

 

http(s):cross the firewall

 

 

vm connector:performance. hard to maintain

 

 

network connectors:

cluster composed

 

 

failover protocol: find another broker when the desirable broker cannnot be connected

discovery protocol : same use of failover protocol, need multicast

 

 

 

peer protocol:easily coonect to multiple embedded brokers

 

 

vm can access by remote application via network

 

后来知道是因为sleak的原因。所以需要换掉编辑器就好了

 

zeromq