dremio 体验

 wget http://download.dremio.com/community-server/3.1.8-201903290151120189-36bb2bf/dremio-community-3.1.8-201903290151120189_36bb2bf_1.noarch.rpm

## rpm -ivh dremio-community-3.1.8-201903290151120189_36bb2bf_1.noarch.rpm

# sudo service dremio start

which: no java in (/sbin:/usr/sbin:/bin:/usr/bin)
+======================================================================+
|      Error: JAVA_HOME is not set and Java could not be found         |
+----------------------------------------------------------------------+
| Dremio requires Java 1.8 or later.                                   |
+======================================================================+

设置：
# java -version
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)


# cat /etc/profile.d/java.sh 
export JAVA_HOME=/usr/java/jdk1.8.0_181-cloudera
export PATH=$PATH:$JAVA_HOME/bin
# echo $JAVA_HOME
/usr/java/jdk1.8.0_181-cloudera

可以自定义安装java 然后使用软连接：
# ln -s /usr/local/jdk1.8.0_192/bin/java /sbin/java

# ln -s /usr/local/jdk1.8.0_192/bin/java /sbin/java
# sudo service dremio start
Starting dremio, logging to /var/log/dremio/server.out
Check the log file to make sure dremio started successfully and did not run into any issues.
--查看：
# tail -f /var/log/dremio/server.out 
...
15:36:27,241 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA - Assuming default type [ch.qos.logback.access.PatternLayoutEncoder] for [encoder] property
15:36:27,252 |-INFO in ch.qos.logback.core.rolling.RollingFileAppender[access-text] - Active log file name: /var/log/dremio/access.log
15:36:27,252 |-INFO in ch.qos.logback.core.rolling.RollingFileAppender[access-text] - File property is set to [/var/log/dremio/access.log]
15:36:27,253 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction - Attaching appender named [access-text] to null
15:36:27,253 |-INFO in ch.qos.logback.access.joran.action.ConfigurationAction - End of configuration.
15:36:27,253 |-INFO in ch.qos.logback.access.joran.JoranConfigurator@4cf4fb3b - Registering current configuration as safe fallback point

Dremio Daemon Started as master



参考：
https://docs.confluent.io/current/installation/system-requirements.html#system-requirements
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