diff --git a/opencontrail/files/3.0/database/cassandra-env.sh b/opencontrail/files/3.0/database/cassandra-env.sh
index 2eb5fbd..b48e4cc 100644
--- a/opencontrail/files/3.0/database/cassandra-env.sh
+++ b/opencontrail/files/3.0/database/cassandra-env.sh
@@ -314,3 +314,8 @@
 JVM_OPTS="$JVM_OPTS $MX4J_ADDRESS"
 JVM_OPTS="$JVM_OPTS $MX4J_PORT"
 JVM_OPTS="$JVM_OPTS $JVM_EXTRA_OPTS"
+
+# Add cassandra pid file, even if not used. It will stay in params and
+# contrail-nodemgr can detect cassandra PID from process list.
+
+JVM_OPTS="$JVM_OPTS -Dcassandra-pidfile=/var/run/cassandra/cassandra.pid"
diff --git a/opencontrail/files/4.0/database/cassandra-env.sh b/opencontrail/files/4.0/database/cassandra-env.sh
index 6b70455..7f2145c 100644
--- a/opencontrail/files/4.0/database/cassandra-env.sh
+++ b/opencontrail/files/4.0/database/cassandra-env.sh
@@ -314,3 +314,8 @@
 JVM_OPTS="$JVM_OPTS $MX4J_ADDRESS"
 JVM_OPTS="$JVM_OPTS $MX4J_PORT"
 JVM_OPTS="$JVM_OPTS $JVM_EXTRA_OPTS"
+
+# Add cassandra pid file, even if not used. It will stay in params and
+# contrail-nodemgr can detect cassandra PID from process list.
+
+JVM_OPTS="$JVM_OPTS -Dcassandra-pidfile=/var/run/cassandra/cassandra.pid"