schedulerinfo - Displays extended scheduler tasks information.
torrus schedulerinfo --tree=TREENAME [options...]
This utility displays the extended scheduler tasks information for tree
TREENAME on standard output. This might be useful for scheduler
planning and analysis.
Reports scheduler’s configuration. The values are explained below.
Total collector/monitor leaves: N
Total number of datasources being processed by collector or
Scheduled leaves by type
Torrus supports arbitrary number of collector types, and
this report shows how many datasources belong to every
type. Currently the monitor leaves are not divided into
Least common period: N seconds
The report below shows how the tasks are distributed across
the time line, and the least common period shows the period
of this time line.
Tasks execution timeline
This report tells which task and how many datasources are
involved in each task startup event, and how these events
are dispersed across the time. The column Interval shows
the time interval from each task execution event to the
next event on the timeline.
Reports scheduler’s runtime statistics, such as running cycle
times, late starts etc. The meaning of the output values is as
follows. Values that have zero values are usually not printed.
Task: Name, Period: N seconds, Offset: M seconds
Each scheduler task is characterized by its name (usually
Collector or Monitor), period, and timeoffset. Fore
example, if period is set to 300 seconds, and offset is 14
seconds, then the task would be executed at 00:00:14,
00:05:14, 00:10:14, and so on for every hour in a day.
N running cycles passed
How many times the task was executed since last reset. The
counter is normally reset after torrus_compilexml(8)
successfully compiles the configuration.
N late starts
How many times the task has started with a delay from its
N too long runs
How many times the task execution time was longer than its
N overrun periods
How many periods have been missed because of too long
N missed periods
How many periods were missed because of any reason (such as
other tasks delaying).
Min, Max, Average, Exp Average
The time values are displayed in four columns: Mimimum,
Maximum and Average values since last reset, and
Exponential decay value, which may be interpreted as the
average for last several values. With defaults defined in
torrus-config.pl, 95% of the average is calculated from
last 3 values.
How long the task executes each period.
How long the task start was delayed.
How much time the too long run took.
In a multithreaded environment, the RRD files are writen in
a background thread. This value shows the length of the RRD
update queue at the beginning of each update cycle.
Displays a help message.
See more documentation at Torrus home page: http://torrus.org
Stanislav Sinyagin <firstname.lastname@example.org>