Add time validation to health check
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Tue, 24 Jul 2012 15:52:36 +0000 (11:52 -0400)
committerDavid Goulet <dgoulet@efficios.com>
Tue, 24 Jul 2012 16:01:39 +0000 (12:01 -0400)
commit8809eec0bb55b03862cb1eb128eb39d50104c258
treebbb3b55c20258165d8529912ccdd878660053dff
parent139ac87245fd1ca18d60a0efca32b50e4c1d8730
Add time validation to health check

The health check code does not have a notion of "time flow": therefore,
two consecutive calls to lttng_health_check() might end up returning a
bad state (0) just because there was too little time between the
invocations.

Add some time information to the "last" snapshot, so we can do a time
delta between the current and last snapshot to figure out if we need to
report the thread as stalled or not.

At this point, a thread is considered stalled with a wait time of over
20 seconds.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: David Goulet <dgoulet@efficios.com>
src/bin/lttng-sessiond/health.c
src/bin/lttng-sessiond/health.h
src/common/defaults.h
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