Fix: Python agent: do not register twice to same port

[deliverable/lttng-ust.git] / liblttng-ust-python-agent / lttngust / agent.py

diff --git a/liblttng-ust-python-agent/lttngust/agent.py b/liblttng-ust-python-agent/lttngust/agent.py
index 8ec26cde0514283fe068895134c4ac2360686a90..84cfd838b70ee812d51fa16037b95805c1e5d672 100644 (file)
--- a/liblttng-ust-python-agent/lttngust/agent.py
+++ b/liblttng-ust-python-agent/lttngust/agent.py
@@ -317,6 +317,12 @@ def _init_threads():
     dbg._pdebug('system session daemon port: {}'.format(sys_port))
     dbg._pdebug('user session daemon port: {}'.format(user_port))
 
+    if sys_port == user_port and sys_port is not None:
+        # The two session daemon ports are the same. This is not normal.
+        # Connect to only one.
+        dbg._pdebug('both user and system session daemon have the same port')
+        sys_port = None
+
     try:
         if sys_port is not None:
             dbg._pdebug('creating system client thread')