Hi there, I install the JDBC by following the instruction http://trafodion.apache.org/docs/client_install/index.html#_jdbc_based_clients. When I tried to build and run the StatementSample test program to verify JDBC Type-4 driver installation, the program was built without errors. But there was a runtime exception. The outputs of the building and running commands are as follows.
$ $JAVA_HOME/bin/javac -classpath ../../lib/jdbcT4-2.1.0.jar *.java ../common/*.java Note: ../common/sampleUtils.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details. $ $JAVA_HOME/bin/java -classpath ../../lib/jdbcT4.jar:..:. -Dt4jdbc.properties=../t4jdbc.properties StatementSample java.lang.ClassNotFoundException: org.trafodion.jdbc.t4.T4Driver at java.net.URLClassLoader$1.run(URLClassLoader.java:359) at java.net.URLClassLoader$1.run(URLClassLoader.java:348) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:347) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:312) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:195) at common.sampleUtils.<clinit>(sampleUtils.java:72) at StatementSample.main(StatementSample.java:41) org.trafodion.jdbc.t4.T4Driver I checked that the class files (sampleUtils.class and StatementSample.class) exist there. Does anybody know what is going wrong here? I am running Trafodion in Linux system. Thank you. Best, Bin On Thu, Aug 3, 2017 at 11:40 PM, Liu, Yuan (Yuan) <[email protected]> wrote: > Yes, you built the server. I don’t think you need to install trafci.zip. > > > Best regards, > Yuan > > -----Original Message----- > From: Bin Lin [mailto:[email protected]] > Sent: Friday, August 04, 2017 1:03 PM > To: [email protected] > Subject: Re: JDBC configuration > > Hi Yuan, > > Thank you for clarification. > > So if I used 'git clone' to download the source code from Github and built > it. Does this mean that I built the Trafodion server? And in my case, do I > have to install the trafci.zip again in order to configure JDBC? > > Thank you. > > Best, > Bin > > On Thu, Aug 3, 2017 at 6:22 PM, Liu, Yuan (Yuan) <[email protected]> > wrote: > > > Hi Bin, > > > > 1 the trafci.zip is a client tool. If you want to connect to Trafodion > > server remotely, you can install it on client side and connect to > > Trafodion. By default, Trafodion sever side also includes trafci. > > > > 2 You don’t need to create catalog, catalog has 3 fixed values: > > TRAFDOION(for trafodion tables), HBASE(for local hbase > > tables),HIVE(for hive tables). > > For schemas, the default schema of trafodion is SEABASE. For HBase > > tables, there are two fixed schema name: "_CELL_", "_ROW_". For Hive > > tables, the schema is the same in Hive. > > > > > > Best regards, > > Yuan > > Email: [email protected] > > Cellphone: (+86) 13671935540 > > > > -----Original Message----- > > From: Bin Lin [mailto:[email protected]] > > Sent: Friday, August 04, 2017 6:32 AM > > To: [email protected] > > Subject: JDBC configuration > > > > Hi there, > > > > I have two questions when I was trying to configure JDBC. > > > > 1. I downloaded the Trafodion Clients package which contains the > > trafci installer, trafci.zip. My question is whether I have to install > > trafci by this installer. I have built the entire Trafodion system > > from the source code, and I can use trafci command to create tables > > and run queries interactively. > > > > 2. The instructions for editing t4jdbc.properties file says that SQL > > catalog and SQL schema must exist on the database. Do these mean that > > I have to create a SQL catalog and a SQL schema in the Trafodion > > database first? In addition, does the t4jdbc.properties file in the > > samples folder work by default? > > > > Thank you. > > > > Best, > > Bin > > >
