I am running jmeter-server on a remote database host (Centos, sun-java 1.6). I dropped the MySQL java jar in $JMETER_HOME/lib per the install instructions. When I try to run a job on my local system (OS X Lion), I get the following error on the server: 2013/04/10 12:44:43 WARN – jmeter.protocol.jdbc.config.DataSourceElement: Could not return Connection … Read more
I have alfresco on my VM. When I try to start alfresco I got an error “postgresql could not be started” such as following : /opt/alfresco/postgresql/scripts/ctl.sh : postgresql could not be started Using CATALINA_BASE: /opt/alfresco/tomcat Using CATALINA_HOME: /opt/alfresco/tomcat Using CATALINA_TMPDIR: /opt/alfresco/tomcat/temp Using JRE_HOME: /opt/alfresco/java Using CLASSPATH: /opt/alfresco/tomcat/bin/bootstrap.jar /opt/alfresco/tomcat/scripts/ctl.sh : tomcat started When I check it … Read more
I want to compare the performance of two MySql servers. Since we are accessing the database using Java/JDBC, the benchmark should be written in Java. It does not have to be MySql specififc, any compatible JDBC program will do. Oh, and it should be free (as in beer). Thanks! Answer Try BenchmarkSQL It’s JDBC, and … Read more
Im building a java application that uses JDBC to connect to MySQL. I have an ant script that compiles my code and then packages it, along with log4j, junit, libshout-java and the mysql jdbc driver into one executable jar. This all works fine on ubuntu 9.10, and my code connects to mysql and away we … Read more
Is it possible to set JBOSS/JDBC’s MySQL connector to cache the server’s settings so that I won’t get a big bunch of “show variables” connection all the time? I think there is a similar settings under Glassfish called CacheServerConfiguration but I was not able to find more information about that under JBOSS. Does anyone know … Read more
I am using Coldfusion 8 which is connecting to SQL Server 2008, the problem is I have updated a table adding a new column in SSMS, but the JDBC connection is still ‘seeing’ the table prior to the change. How can I essentially ‘refresh’ the JDBC connection? Would restarting the cf server work? Answer three … Read more
I’m setting up a simple JDBC connection to my working MySQL database on my server. I’m using the Connector-J provided by MySQL. According to their documentation, I’m suppose to create the CLASSPATH variable to point to the directory where the mysql-connector-java-5.0.8-bin.jar is located. I used export set CLASSPATH=/path/mysql-connector-java-5.0.8-bin.jar:$CLASSPATH. When I type echo $CLASSPATH to see … Read more
I use Aqua Data Studio in OS X to make queries in a PostgreSQL server, but the first query of the day runs too slow. It not depends on the SQL, a simple SELECT current_timestamp will parse and execute in about 5 seconds, any subsequent query will take almost 30ms. If I close the app, … Read more
I have installed Hyperic Server 4.4.0 and I want to use an SQL plugin that connects to an Oracle database. To make this work on the Agent i had to download a JDBC driver for Oracle and put it in [agent-dir]/bundles/[bundle-dir]/pdk/lib. I can now run my plugin on the agent using java -jar hq-products.jar …. … Read more
I have ubuntu server and mysql version 5.1.41-3ubuntu12.10-log. i need to run solr on my webserver. i have installed lucidworks-enterprise-installer-1.7 and mysql-connector-java-5.1.17-bin.jar on the webserver already. but i can’t build the index for solr and it keeps giving me Total Documents Failed tag with number all of my records <str name=”Total Documents Failed”>15511</str> any idea … Read more
