Biotime machine

R installation

R-3.4.1 was installed in /usr/local/bin. Rstudio is told to use this version via:

cat /etc/rstudio/rserver.conf

# Server Configuration File
rsession-which-r=/usr/local/bin/R

Administration

The executable is rstudio-server. Documentation is available but for the professional version, whihc nonetheless may be useful (see the links section).

There is no manpage, but there is this very concise help which nonethless is useful:

root@biotime:/etc/rstudio# rstudio-server --help
$Usage: rstudio-server {status|start|stop|restart|test-config|verify-installation|suspend-session|suspend-all|force-suspend-session|force-suspend-all|kill-session|kill-all|offline|online|active-sessions|version}

For example to kill a certain session:

rstudio-server force-suspend-session <PID>

Memory-style errors

These used to happen quite often with marvin.

nutria@biotime:/mnt/rdrive/Bioinformatics$
Message from syslogd@biotime at Apr  3 14:56:59 ...
 kernel:[5173414.766503] [Hardware Error]: Corrected error, no action required.

Message from syslogd@biotime at Apr  3 14:56:59 ...
 kernel:[5173414.766566] [Hardware Error]: CPU:24 (15:2:0) MC4_STATUS[-|CE|MiscV|-|AddrV|-|Poison|CECC]: 0x9c664880011c017b

Message from syslogd@biotime at Apr  3 14:56:59 ...
 kernel:[5173414.766664] [Hardware Error]: MC4_ADDR: 0x0000003a066ab700 

Message from syslogd@biotime at Apr  3 14:56:59 ...
 kernel:[5173414.766712] [Hardware Error]: MC4 Error (node 3): L3 data cache ECC error.

Message from syslogd@biotime at Apr  3 14:56:59 ...
 kernel:[5173414.766767] [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: EV