User Log Viewer
The Condor User Log Viewer is a Java application designed to allow users
to view user log files created by the Condor project at the University
To view a user log file, select it using the open file command in the
File menu. After the file is parsed, it will be visually represented.
Each horizontal line represents an individual job. The x-axis is
time. Whether a job is running at a particular time is represented
by its color at that time -- white for running, black for idle. For
example, a job which appears predominantly white has made efficient progress,
whereas a job which appears predominantly black has received an inordinately
small proportion of computational time.
A transistion state is the state of a job at any time. It is called
a "transistion" because it is defined by the two events
which bookmark it. There are two basic transistion states: running
and idle. An idle job typically is a job which has just been submitted
into the Condor pool and is waiting to be matched with an appropriate machine
or a job which has vacated from a machine and has been returned to the
pool. A running job, by contrast, is a job which is making active
Advanced users may want a visual distinction between two types of running
transistions: "goodput" or "badput". Goodput is the transistion state
preceding an eventual job completion or checkpoint. Badput is the
transistion state preceding a non-checkpointed eviction event. Note
that "badput" is potentially a misleading nonmenclature; a job which is
not checkpointed by the Condor program may checkpoint itself or make progress
in some other way. To view these two transistion as distinct transistions,
select the appropriate option from the "View" menu.
There are two basic kinds of events: checkpoint events and
error events. Plus advanced users can ask to see more events.
To view any arbitrary selection of jobs in a job file, use
the job selector tool. Jobs appear visually by order of appearence
within the actual text log file. For example, the log file might
contain jobs 775.1, 775.2, 775.3, 775.4, and 775.5, which appear in that
order. A user who wishes to see only jobs 775.2 and 775.5 can select
only these two jobs in the job selector tool and click the "Ok" or "Apply"
button. The job selector supports double clicking; double click on
any single job to see it drawn in isolation.
To view a small area of the log file, zoom in on the area
which you would like to see in greater detail. You can zoom in, out and
do a full zoom. A full zoom redraws the log file in its entirety. For example,
if you have zoomed in very close and would like to go all the way back
out, you could do so with a succession of zoom outs or with one full zoom.
There is a difference between using the menu driven zooming
and the mouse driven zooming. The menu driven zooming will recenter itself
around the current center, whereas mouse driven zooming will recenter itself
(as much as possible) around the mouse click. To help you refind the clicked
area, a box will flash after the zoom. This is called the "zoom finder"
and it can be turned off in the zoom menu if you prefer.
Keyboard And Mouse Shortcuts
The keyboard shortcuts:
The mouse shortcuts:
Arrows - approximate ten percent scrollbar movement
PageUp and PageDown - approximate one hundred percent scrollbar
Control plus Left or Right - approximate one hundred percent
End and Home - scrollbar movement to the vertical extreme
and those shortcuts as seen beside the menu items
Control + Left click - zoom in
Control + Right click - zoom out
Shift + left click - recenter
Questions about the Condor UserLogViewer should
be addressed to email@example.com
Please include UserLogViewer in the subject line
of the email