Changes between Version 35 and Version 36 of UsersGuide

Timestamp:

Feb 25, 2014 5:07:36 PM (10 years ago)

Author:

Ted Faber

Comment:

Document startcommand logging

UsersGuide

@@ -158 +158 @@
 
  * The start commands are not coordinated across nodes.  In DETER the start commands all execute when the last node has reported to the testbed that it has completed booting.  In a containerized experiment, the startcommands run when the containerized node has come up.
+ * Logs from the start command are in {{{/var/containers/log/start_command.out}}} and {{{/var/containers/log/start_command.err}}}.  This is true on embedded pnodes as well.
  * Start commands have to be shorter than in DETER because the container system is also using the facility.
- * The event system cannot be used to prplay the start command.
+ * The event system cannot be used to replay the start command.
 
 While start commands that make use of shell syntax for multiple commands and file redirection will generally work, syntax errors will cause them to fail silently.  Because of this, and because containerized experiments cannot have as long a start command string, we recommend that if you are doing anything more complex than calling a single program, you script this and run the script from the per-expriment directory or your home directory.