Prayer's Laputa

按官方提示https://github.com/naver/pinpoint-docker ，通过docker安装pinpoint时，遇到端口冲突问题

docker-compose up -d Creating network "pinpoint-docker_pinpoint" with driver "bridge" Creating pinpoint-docker_zoo3_1 ... done Creating pinpoint-docker_zoo2_1 ... done Creating pinpoint-flink-jobmanager ... done Creating pinpoint-docker_zoo1_1 ... done Creating pinpoint-mysql ... done Creating pinpoint-hbase ... error Creating pinpoint-flink-taskmanager ... done ERROR: for pinpoint-hbase Cannot start service pinpoint-hbase: Ports are not available: listen tcp 0.0.0.0:2180: bind: An attempt was made to access a socket in a way forbidden by its access permissions. ERROR: for pinpoint-hbase Cannot start service pinpoint-hbase: Ports are not available: listen tcp 0.0.0.0:2180: bind: An attempt was made to access a socket in a way forbidden by its access permissions. Encountered errors while bringing up the project.

根据官方提示，修改pinpoint-docker文件夹下的.env文件，修改hbase端口即可，比如我修改为了12180 Continue reading »

转载地址：http://www.lifevv.com/sysdesign/doc/20071211214255251.html
GRASP 是General Responsibility Assignment Software patterns（通用职责分配软件模式）的简称，它的核心思想是“职责分配（Responsibility Assignment）”。GRASP提出了几个基本原则，用来解决面向对象设计的一些问题。
Craig Larman氏在《Applying UML and Patterns》一书中提出了GRASP设计模式的概念。作者称其为设计模式，其实，更好的理解应该为设计原则。因为，与GoF等设计模式不同的 是，GoF等设计模式是针对特定问题而提出的解决方法，而GRASP则是站在面向对象设计的角度，告诉我们怎么样设计问题空间中的类与它们的行为责任，以 及明确类之间的相互关系等等。GRASP可以说是GoF等设计模式的基础。 Continue reading »