[jira] [Updated] (TAJO-456) Separate tajo-jdbc and tajo-client from tajo-core-backend

["Hyunsik Choi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAJO-456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyunsik Choi updated TAJO-456:
------------------------------

    Status: Patch Available  (was: Open)

> Separate tajo-jdbc and tajo-client from tajo-core-backend
> ---------------------------------------------------------
>
>                 Key: TAJO-456
>                 URL: https://issues.apache.org/jira/browse/TAJO-456
>             Project: Tajo
>          Issue Type: Improvement
>          Components: build
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.8-incubating
>
>
> Currently, tajo-client and tajo-jdbc are included in tajo-core-backend, which depends on lots of third-party libraries. So, even just client programs should include unnecessary third-party libraries. This patch separates tajo-jdbc and tajo-client from tajo-core-backend to individual maven modules. As a result, the client and jdbc's dependencies are more simplified than before.
> After this patch, 'mvn package \-Pdist' commands generates tajo jdbc drivers in $\{TAJO_HOME}/tajo-dist/target/tajo-$\{tajo.version}/share/jdbc-dist. There will be the following files in the directory:
> {noformat}
> joda-time-2.3.jar
> tajo-catalog-common-0.8.0-SNAPSHOT.jar
> tajo-client-0.8.0-SNAPSHOT.jar
> tajo-common-0.8.0-SNAPSHOT.jar
> tajo-jdbc-0.8.0-SNAPSHOT.jar
> tajo-rpc-0.8.0-SNAPSHOT.jar
> tajo-storage-0.8.0-SNAPSHOT.jar
> {noformat}
> In order to load the Tajo JDBC driver, client programs must be able to locate the all above *JAR* files* and *hadoop's JAR files*.
> For that, users should set classpath for them. If the jar files are located in the directory '/usr/local/share/tajo-jdbc' and hadoop binary is located in '/opt/hadoop', you should set classpath as follows:
> {code}
> export CLASSPATH=`/opt/hadoop/bin/hadoop classpath`:/usr/local/share/tajo-jdbc/*:$CLASSPATH
> {code}
> Note that the command '$\{HADOOP_HOME}/bin/hadoop classpath' prints out hadoop's classpaths via stdout.



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