In davinci's default data source driver configuration file, only mysql and oracle are configured. But jar only has mysql driver jar package, so davinci only supports connecting to mysql data source by default.
1. Modify the data source driver configuration file
(1) Enter the config folder in the davinci installation directory
cd $DAVINCI3_HOME/config
(2) Modify the data source driver configuration template
mv datasource_driver.yml.example datasource_driver.yml
(3) Edit the data source driver and add content (support kylin and impala data sources)
vi datasource_driver.yml
#kylin:
# name: kylin
# desc: kylin
# driver: org.apache.kylin.jdbc.Driver
# keyword_prefix: \"
# keyword_suffix: \"
# alias_prefix: \"
# alias_suffix: \"
#impala:
# name: impala
# desc: impala
# driver: com.cloudera.impala.jdbc41.Driver
# keyword_prefix: \"
# keyword_suffix: \"
# alias_prefix: \"
# alias_suffix: \"
2. Upload the corresponding driver jar package to the $DAVINCI3_HOME/lib directory
I have uploaded the driver jar packages of oracle, kylin, and impala to the network disk. The address of the network disk is at the end of Chapter 1 of this set of articles.
Three, restart davinci
sh $DAVINCI3_HOME/bin/stop-server.sh
sh $DAVINCI3_HOME/bin/start-server.sh
So far, your davinci supports 4 data sources
Fourth, configure the connection string of the data source in davinci
(1) mysql format
jdbc:mysql://IP:port/library name
(2) Oracle format
jdbc:oracle:thin:@IP:port:instance name
(3) kylin format
jdbc:kylin://IP:port/project name
(4) impala format
jdbc :impala://IP :port/library name
Attachment: when connecting to oracle
Error 1:
2020-01-19 18:04:05.865 WARN 28651 --- [http-nio-192.168.8.102-8080-exec-7] c.a.druid.pool.DruidAbstractDataSource : oracle.jdbc.driver.OracleDriver is deprecated.Having use oracle.jdbc.OracleDriver.
2020-01-19 18:04:05.933 INFO 28651 --- [http-nio-192.168.8.102-8080-exec-7] com.alibaba.druid.pool.DruidDataSource : {dataSource-7} inited
licationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.AbstractMethodError: oracle.jdbc.driver.T4CConnection.isValid(I)Z
at com.alibaba.druid.pool.DruidPooledConnection.isValid(DruidPooledConnection.java:1043)
at edp.core.utils.SourceUtils.getConnection(SourceUtils.java:96)
at edp.core.utils.SqlUtils.testConnection(SqlUtils.java:673)
at edp.davinci.service.impl.SourceServiceImpl.testSource(SourceServiceImpl.java:404)
Solution:
The problem of the driver package version is to replace ojdbc14 with ojdbc6