Hi all, I try the example from zeppelinhub below in my own cluster (Ambari server with Spark, Zeppelin) https://www.zeppelinhub.com/viewer/notebooks/aHR0cHM6Ly9yYXcuZ2l0aHVidXNlcmNvbnRlbnQuY29tL2ZlbGl4Y2hldW5nL3NwYXJrLW5vdGVib29rLWV4YW1wbGVzL21hc3Rlci9aZXBwZWxpbl9ub3RlYm9vay8yQU1YNUNWQ1Uvbm90ZS5qc29u
but I've got the error at the paragraph "Let's plot something! - matplotlib" Traceback (most recent call last): File "/tmp/zeppelin_pyspark-3580576524078731606.py", line 235, in <module> eval(compiledCode) File "<string>", line 1, in <module> File "/usr/lib64/python2.6/site-packages/matplotlib/pyplot.py", line 78, in <module> new_figure_manager, draw_if_interactive, show = pylab_setup() File "/usr/lib64/python2.6/site-packages/matplotlib/backends/__init__.py", line 25, in pylab_setup globals(),locals(),[backend_name]) File "/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_gtkagg.py", line 10, in <module> from matplotlib.backends.backend_gtk import gtk, FigureManagerGTK, FigureCanvasGTK,\ File "/usr/lib64/python2.6/site-packages/matplotlib/backends/backend_gtk.py", line 8, in <module> import gtk; gdk = gtk.gdk File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line 64, in <module> _init() File "/usr/lib64/python2.6/site-packages/gtk-2.0/gtk/__init__.py", line 52, in _init _gtk.init_check() RuntimeError: could not open display Could you guys please help me out? Kind regards, Hoang Le POSTECH
