druid的再次使用

今天看极客时间里的druid连接池的课程

发现很多之前用的时候没注意到的功能

之前使用druid以为只是简单的有一个数据库监控

今天百度druid发现已经归为了apache下的一个模块并且在功能上有所增强

使用

https://druid.apache.org/downloads.html 进行下载

放入linux中/home/

cd /home执行

tar -xzf apache-druid-0.17.0-bin.tar.gz
cd apache-druid-0.17.0

LICENSE and NOTICE files
bin/* - scripts useful for this quickstart
conf/* - example configurations for single-server and clustered setup
extensions/* - core Druid extensions
hadoop-dependencies/* - Druid Hadoop dependencies
lib/* - libraries and dependencies for core Druid
quickstart/* - configuration files, sample data, and other files for the quickstart tutorials

上面是文件内容介绍

紧接着我们按官方文档继续操作

./bin/start-micro-quickstart

8081被占用 nginx的网关

Cannot start up because port 8081 is already in use.

If you need to change your ports away from the defaults, check out the
configuration documentation:

  https://druid.apache.org/docs/latest/configuration/index.html

If you believe this check is in error, or if you have changed your ports away
from the defaults, you can skip this check using an environment variable:

  export DRUID_SKIP_PORT_CHECK=1

https://druid.apache.org/docs/latest/configuration/index.html

发现配置文件中很多端口都与我之前弄的冲突了

/home/apache-druid-0.17.0/conf/druid/single-server/xlarge/coordinator-overlord

druid.service=druid/coordinator
druid.plaintextPort=8081

druid.coordinator.startDelay=PT10S
druid.coordinator.period=PT5S

testweb1是个测试页面

最好的办法是在安全组开几个新端口,在druid配置文件中进行更改

默认7070-7074更改到原来druid配置的808*中,

保留其原有 1527 和 8888 端口

再次运行

因为是启动的./bin/start-micro-quickstart

所以更改的配置文件应该是:

/home/apache-druid-0.17.0/conf/druid/single-server/micro-quickstart

All persistent state such as the cluster metadata store and segments for the services will be kept in the var directory under the apache-druid-0.17.0 package root. Logs for the services are located at var/sv.

Later on, if you'd like to stop the services, CTRL-C to exit the bin/start-micro-quickstart script, which will terminate the Druid processes.

Once the cluster has started, you can navigate to http://localhost:8888. The Druid router process, which serves the Druid console, resides at this address.

上面官方说你可以在哪里看日志Logs 怎么Ctrl+C退出服务进行怎么查看界面:8888

但是这里我访问了还没看到页面

新shell页面:

并无8888,判断,可能是由于之前端口有依赖性关系

在端口号后加了下/druid虽然也无法访问,但刷新后居然就好了

可能是这端口号太霸道了!

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