1. 25 Oct, 2006 1 commit
  2. 19 Sep, 2006 1 commit
  3. 24 Jan, 2006 1 commit
  4. 06 Dec, 2005 1 commit
  5. 24 Jun, 2005 1 commit
    • Timothy Stack's avatar
      · 71901cf5
      Timothy Stack authored
      Add a minor feature to loghole to support network link trace files.
      
      	* utils/loghole.in, utils/loghole.1: Create a directory for traced
      	network links that contains symbolic links to the pcap files.
      
      	* www/tutorial/advanced.html: Fix the link to the loghole doc.
      
      	* xmlrpc/emulabserver.py.in: Add a 'traces' aspect to the
      	experiment.info method (used by loghole).
      71901cf5
  6. 23 Jun, 2005 1 commit
  7. 22 Jun, 2005 1 commit
    • Leigh B. Stoller's avatar
      Added my simplistic link tracing and monitoring. Example usage and · 7942119e
      Leigh B. Stoller authored
      some details can be found in the advanced tutorial that I wrote up.
      See this link:
      
      http://www.emulab.net/tutorial/docwrapper.php3?docname=advanced.html#Tracing
      
      The basic idea is that each virt_lan entry gets a couple of new slots
      describing the type of tracing that is desired.
      
        traced tinyint(1) default '0',
        trace_type enum('header','packet','monitor') NOT NULL default 'header',
        trace_expr tinytext,
        trace_snaplen int(11) NOT NULL default '0',
        trace_endnode tinyint(1) NOT NULL default '0',
      
      There is a new physical table called "traces" that is a little bit
      like the current delays table. A new tmcd command returns the trace
      configuration to the client nodes (tmcd/common/config/rc.trace).
      
      The delays table got a new boolean called "noshaping" that tells the
      delay node to bridge, but not set up any pipes. This allows us to
      capture traffic at the delay node, but without much less overhead on
      the packets.
      
      The pcapper got bloated up to do packet capture and more event stuff.
      I also had to add some mutex locking around calls into the pcap
      library and around malloc, since the current setup used linuxthreads,
      which is not compatable with the standard libc_r library. I was
      getting all kinds of memory corruption, and I am sure that if someone
      breathes on the pcapper again, it will break in some new way.
      7942119e
  8. 17 Jun, 2005 1 commit
    • Timothy Stack's avatar
      · 41d4c6d4
      Timothy Stack authored
      Event system documentation and tweaks:
      
      	* event/sched/event-sched.c: The snapshot event got left out of
      	the list of events that send back a complete event.  If a top
      	level sequence stops with an error, automatically send a report.
      
      	* event/sched/group-agent.c, event/sched/timeline-agent.c: When
      	handling a complete event, return true if the event was consumed.
      
      	* event/sched/node-agent.cc: Clean the "/local/logs" loghole on
      	the node before taking a snapshot of the disk image.
      
      	* event/sched/simulator-agent.cc, event/sched/simulator-agent.h:
      	Made send_report non-static so it can be called when a sequence
      	errors out.  Actually check the clear flag when dumping report
      	data.
      
      	* lib/libtb/tbdefs.c: Add a comment about updating the event
      	scheduler when a new object type is added.
      
      	* tbsetup/ns2ir/sim.tcl.in: Check the OSIDs passed to the "reload"
      	and "snapshot-to" events.
      
      	* utils/loghole.1: Mention early and often the directories that
      	gets sync'd.  Document the 'change' action and new options for
      	'clean'.
      
      	* utils/loghole.in: Use rsync's '--include-from' option so we
      	don't have to run rsync separately for each directory.  Add a
      	'change' action that lets people mess with the metadata of an
      	existing archive.  Make the 'clean' action also remove log files
      	on the nodes.  Only rsync node's whose OS's support ssh.  Grab
      	logs from delay nodes.
      
      	* www/tutorial/advanced.html: Update the program agent examples to
      	use the new form.
      
      	* www/tutorial/eventsystem.html: First cut at an event system
      	reference manual that includes sequences, timelines, and other
      	new features.
      
      	* www/tutorial/loghole.html: Just a pointer to the man page on ops
      	for now.
      
      	* www/tutorial/nscommands.html: Add a section about capturing
      	parameters from the 'opt' array.
      
      	* xmlrpc/emulabserver.py.in: Add an osid.info() method that
      	returns information about a single OSID.
      41d4c6d4
  9. 15 Jul, 2004 1 commit
    • Leigh B. Stoller's avatar
      Overview: Add Event Groups: · ed964507
      Leigh B. Stoller authored
      	set g1 [new EventGroup $ns]
      	$g1 add  $link0 $link1
      	$ns at 60.0 "$g1 down"
      
      See the new advanced tutorial section on event groups for a better
      example.
      
      Changed tbreport to dump the event groups table when in summary mode.
      At the same time, I changed tbreport to use the recently added
      virt_lans:vnode and ip slots, decprecating virt_nodes:ips in one more
      place. I also changed the web interface to always dump the event and
      event group summaries.
      
      The parser gets a new file (event.tcl), and the "at" method deals with
      event group events by expanding them inline into individual events
      sent to each member. For some agents, this is unavoidable; traffic
      generators get the initial params in the event, so it is not possible
      to send a single event to all members of the group. Same goes for
      program objects, although program objects do default to the initial
      command now, at least on new images.
      
      Changed the event scheduler to load the event groups table. The
      current operation is that the scheduler expands events sent to a
      group, into a set of distinct events sent to each member of the
      group. At some point we proably want to optimize this by telling the
      agents (running on the nodes) what groups they are members of.
      
      Other News: Added a "mustdelay" slot to the virt_lans table so the
      parser can tell assign_wrapper that a link needs to be delayed, say if
      there are events or if the link is red/gred. Previously,
      assign_wrapper tried to figure this out by looking at the event list,
      etc. I have removed that code; see database-migrate for instructions
      on how to initialize this slot in existing experiments. assign_wrapper
      is free to ignore or insert delays anyway, but having the parser do
      this makes more sense.
      
      I also made some "rename" changes to the parser wrt queues and lans
      and links. Not really necessary, but I got sidetracked (for several
      hours!) trying to understand that rename stuff a little better, and
      now I do.
      ed964507
  10. 03 May, 2004 1 commit
  11. 29 Apr, 2004 1 commit
  12. 04 Mar, 2004 1 commit
  13. 19 Dec, 2003 1 commit
  14. 07 Nov, 2003 1 commit
  15. 07 Aug, 2003 1 commit
  16. 13 May, 2003 1 commit
  17. 24 Apr, 2003 1 commit
    • Robert Ricci's avatar
      Fixed nit from Eric. · b471dcfe
      Robert Ricci authored
      Fixed event example to match actual experiment email, added
      instructions to get the full event list.
      b471dcfe
  18. 21 Apr, 2003 1 commit
  19. 18 Apr, 2003 1 commit
  20. 16 Apr, 2003 1 commit
  21. 05 Feb, 2003 1 commit
  22. 26 Aug, 2002 1 commit
  23. 15 Jul, 2002 1 commit
  24. 11 Jul, 2002 1 commit
  25. 12 May, 2002 1 commit
  26. 23 Apr, 2002 1 commit
  27. 25 Mar, 2002 3 commits
  28. 20 Mar, 2002 1 commit
  29. 18 Mar, 2002 5 commits
  30. 18 Apr, 2001 1 commit
  31. 10 Apr, 2001 1 commit
  32. 09 Apr, 2001 1 commit
  33. 04 Apr, 2001 1 commit