No result after running `cave`

[anikfal]

After running cave on CentOS7, nothing happens. What am I supposed to expect after running cave? I couldn't figure it out by reading the documentation (http://unidata.github.io/awips2/install/install-cave/).

May I know if there is any _gettingstarted guide showing some examples as steps to do after installing EDEX and CAVE?

[srcarter3]

Hi there, after running cave on the command line after installing from our install script (awips_install.sh), you should soon be prompted with the EDEX Connection Window, shown here in our documentation here.

[anikfal]

Actually even after half an hour, no EDEX Connection Window is prompted after running cave. Is it a matter of X11 forwarding? I connect to the VM via SSH. So does this mean that everybody is supposed to install CAVE on their own local machine and then connect to EDEX?

I wonder if CAVE could be accessed by a web browser in any OS.

[tiffanycmeyer13]

CAVE is very dependent on graphics so it is not available in a web browser and as stated in our documentation is not supported to run through X11 forwarding

We also have a Virtual Machine with CAVE already installed if you want to connect to our public EDEX

[srcarter3]

Remotely accessing CAVE is documented in our known issues here: https://unidata.github.io/awips2/appendix/common-problems/#remotely-connecting-to-cave

It is highly problematic and the only method we can recommend is using VNC.

This is why we have created so many installation options with direct installs for Windows, Linux and Mac, as well as the virtual machine option already mentioned by Tiffany.

[anikfal]

Some errors in the log file /home/awips/caveData/logs/consoleLogs/detectdms/cave_20240704_084151_pid_4251_console.log:

java.lang.UnsatisfiedLinkError: Could not load SWT library. Reasons:
        no swt-pi4-gtk-4936r26 in java.library.path: [/awips2/java/lib, /awips2/python/lib, /awips2/python/lib/python3.6/site-packages/jep, /awips2/ldm/lib, /awips2/qpid/lib, /awips2/yajsw/lib, /awips2/psql/lib, /awips2/postgresql/lib, /awips2/python/lib, ., /usr/java/packages/lib, /usr/lib64, /lib64, /lib, /usr/lib]
        no swt-pi4-gtk in java.library.path: [/awips2/java/lib, /awips2/python/lib, /awips2/python/lib/python3.6/site-packages/jep, /awips2/ldm/lib, /awips2/qpid/lib, /awips2/yajsw/lib, /awips2/psql/lib, /awips2/postgresql/lib, /awips2/python/lib, ., /usr/java/packages/lib, /usr/lib64, /lib64, /lib, /usr/lib]
        Can't load library: /home/awips/.swt/lib/linux/x86_64/libswt-pi4-gtk-4936r26.so
        Can't load library: /home/awips/.swt/lib/linux/x86_64/libswt-pi4-gtk.so

So the SWT library is not installed by awips_install.sh? Am I supposed to install it myself?

[anikfal]

So the SWT library is not installed by awips_install.sh? Am I supposed to install it myself?

I handled this error by installing gtk3. But another problem occurred:

...
!ENTRY org.eclipse.osgi 4 0 2024-07-04 14:21:18.176
!MESSAGE Application error
!STACK 1
org.eclipse.swt.SWTError: No more handles [gtk_init_check() failed]
      at org.eclipse.swt.SWT.error(SWT.java:4895)
      ...

[anikfal]

CAVE could be eventually loaded by the VM, and I entered edex-cloud.unidata.ucar.edu. However, it was very slow as expected, with loading in progress. And also no File->New Map could be displayed. Anyway, I may try a VNC instead of SSH.

May I know if setting up EDEX without CAVE can be an option?

[srcarter3]

As stated before, ssh-ing to access CAVE is known to be problematic. It is not something we support.

May I know if setting up EDEX without CAVE can be an option?

Yes, EDEX and CAVE are two independent, stand-alone pieces of software. CAVE is the graphical interface application used to view and analyze data. EDEX is the backend server used to ingest, decode, store, and serve that data