DataStax DevCenter FAQ 

Frequently asked questions about DevCenter.

Why does DevCenter on Mac OS need Java 6?

When launching DevCenter on Mac OS X, you might see an error message stating: "To open 'DevCenter' you need to install the legacy Java SE 6 runtime. Click More Info... to visit the legacy Java SE 6 download website". Although DevCenter is compatible with any recent Java version, Mac OS X might force you to use Java SE 6. If this happens, simply follow the link in the message and install Java SE 6.

Why am I seeing the “Failed to load the JNI shared library" error when starting DevCenter?
It's likely to be because you're using a 32-bit application on a 64-bit JVM or vice versa.
Why aren't all of my database objects showing up in the auto-completion popup?
To retrieve an up-to-date view of the database schema, DevCenter requires an active connection to the cluster, so if you are working offline, only the database objects defined in the current script will be available for auto-completion.
Why isn't the Detailed Results View updated when a new Results table cell is selected?
This is a known issue using VNC Viewer to connect to a virtual machine running DevCenter. Connecting using the VMWare console does not have this problem.
Is there any way to disable Query Tracing?
By default, DevCenter enables query tracing only for the last query executed in a script. A system property can be used to control this by adding the following to the DevCenter config.ini file:
devcenter.querytrace.enabled=false
The config.ini file is located in:
  • Mac OS X: DevCenter_Home/configuration
  • Linux: DevCenter_Home/configuration
  • Windows: DevCenter_Home/configuration
Does DevCenter allow connection to a DSE cluster configured with LDAP authentication?
Yes, DevCenter 1.5.0 has been tested to be able to connect to a DSE cluster configured with OpenLDAP, OracleLDAP, WinAD08 and WinAD12.
I just got "An internal error occurred during: 'Xtext validation', Java heap space" dialog. What can I do about it?
Increase JVM MaxHeapSize by adding -Xmx512m or -Xmx1024m to the DevCenter.ini file:
The config.ini file is located in:
  • Mac OS X: DevCenter_Home/configuration
  • Linux: DevCenter_Home/configuration
  • Windows: DevCenter_Home/configuration