Druid stand-alone installation

Record Druid stand-alone installation process, the installation process in general and the official website, join the particular case is inconsistent with the official installation and network solutions

Druid run as a dependent zookeeper distributed coordination service, download and install the zookeeper

wget https://archive.apache.org/dist/zookeeper/zookeeper-3.4.11/zookeeper-3.4.11.tar.gz
tar -zvf zookeeper-3.4.14.tar.gz
ln -s zookeeper-3.4.14 zookeeper

Download Druid installation package:

wget http://mirrors.tuna.tsinghua.edu.cn/apache/incubator/druid/0.15.0-incubating/apache-druid-0.15.0-incubating-bin.tar.gz
tar -zxf apache-druid-0.15.0-incubating-bin.tar.gz
ln -s apache-druid-0.15.0-incubating druid

Configuration ~ / .bash_profile environment variables
vim ~/.bash_profile

export JAVA_HOME=/home/homework/jdk
export ZK_HOME=/home/homework/zookeeper
export DRUID_HOME=/home/homework/druid
export KAFKA_HOME=/home/homework/kafka
export PATH=$PATH:$JAVA_HOME/bin:$ZK_HOME/bin:$DRUID_HOME/bin:$KAFKA_HOME/bin

Reload the environment variable
source ~ / .bash_profile

Start zookeeper

zkServer.sh start
ZooKeeper JMX enabled by default
Using config: /home/homework/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

Start druid

[homework@test druid]$ start-micro-quickstart 
[Thu Aug 15 19:51:07 2019] Running command[zk], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/zk.log]: bin/run-zk conf
[Thu Aug 15 19:51:07 2019] Running command[coordinator-overlord], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/coordinator-overlord.log]: bin/run-druid coordinator-overlord conf/druid/single-server/micro-quickstart
[Thu Aug 15 19:51:07 2019] Running command[broker], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/broker.log]: bin/run-druid broker conf/druid/single-server/micro-quickstart
[Thu Aug 15 19:51:07 2019] Running command[router], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/router.log]: bin/run-druid router conf/druid/single-server/micro-quickstart
[Thu Aug 15 19:51:07 2019] Running command[historical], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/historical.log]: bin/run-druid historical conf/druid/single-server/micro-quickstart
[Thu Aug 15 19:51:07 2019] Running command[middleManager], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/middleManager.log]: bin/run-druid middleManager conf/druid/single-server/micro-quickstart
[Thu Aug 15 19:51:08 2019] Command[zk] exited (pid = 25982, exited = 1)
[Thu Aug 15 19:51:08 2019] Command[zk] failed, see logfile for more details: /mnt/homework/apache-druid-0.15.0-incubating/var/sv/zk.log
[Thu Aug 15 19:51:11 2019] Running command[zk], logging to[/mnt/homework/apache-druid-0.15.0-incubating/var/sv/zk.log]: bin/run-zk conf

I will complain in the case of executing the command. Specific error content can be viewed /mnt/homework/apache-druid-0.15.0-incubating/var/sv/zk.log. The main reason is the official website requires the zookeeper to zk folder in the root directory of the druid.
I'm here because of other components of the installation is a zookeeper and druid and other similar directories. So create a soft link in the druid installation directory, point zk

cd /home/homework/druid
ln -s /home/homework/zookeeper zk

In this case, it is possible to start the druid