Cumin @ CloudVPS can't reach at least 40 VMs:
aborrero@cloud-cumin-01:~$ sudo cumin --force -x 'O{project:tools name:tools-sgeexec-.*}' 'uname -a' IGNORE EXIT CODES mode enabled, all commands executed will be considered successful 40 hosts will be targeted: tools-sgeexec-[0901,0904-0942].tools.eqiad.wmflabs FORCE mode enabled, continuing without confirmation ===== NODE GROUP ===== (40) tools-sgeexec-[0901,0904-0942].tools.eqiad.wmflabs ----- OUTPUT of 'uname -a' ----- Permission denied (publickey,hostbased). ================ PASS: |█████████████████████████████████████████████████████████████████████████████████████| 100% (40/40) [00:00<00:00, 2.16hosts/s] FAIL: | | 0% (0/40) [00:00<?, ?hosts/s] 100.0% (40/40) success ratio (>= 100.0% threshold) for command: 'uname -a'. 100.0% (40/40) success ratio (>= 100.0% threshold) of nodes successfully executed all commands.