This morning around 9:00 UTC, I have restarted the process MdVim on olserver117.

Each command started by MdVim is a bash script which starts several root.exe in charge of doing the plots for the VIM pages.
The number of commands started by MdVim and running in parallel is now limited.
This should prevent  the crashes of olserver117 that occured last week because of two many root.exe processes running at the same time because of a problem with the trend data access.