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-rw-r--r--doc/environment_variables.md7
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/environment_variables.md b/doc/environment_variables.md
index 339b705252..a283a5ab00 100644
--- a/doc/environment_variables.md
+++ b/doc/environment_variables.md
@@ -54,12 +54,14 @@ some configuration as environment variables that can be set.
- op_failure - traces error information when failure is pushed onto a
completion queue
- round_robin - traces the round_robin load balancing policy
+ - resource_quota - trace resource quota objects internals
- glb - traces the grpclb load balancer
- queue_pluck
- queue_timeout
- server_channel - lightweight trace of significant server channel events
- secure_endpoint - traces bytes flowing through encrypted channels
- timer - timers (alarms) in the grpc internals
+ - timer_check - more detailed trace of timer logic in grpc internals
- transport_security - traces metadata about secure channel establishment
- tcp - traces bytes in and out of a channel
@@ -83,6 +85,11 @@ some configuration as environment variables that can be set.
'all' can additionally be used to turn all traces on.
Individual traces can be disabled by prefixing them with '-'.
+ 'refcount' will turn on all of the tracers for refcount debugging.
+
+ if 'list_tracers' is present, then all of the available tracers will be
+ printed when the program starts up.
+
Example:
export GRPC_TRACE=all,-pending_tags