Handle cases when we have multiple IPs. (#383)

parsa-epfl · Sep 24, 2022 · 9ce2439 · 9ce2439
1 parent ecd3291
commit 9ce2439
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/benchmarks/data-serving/server/files/docker-entrypoint.sh b/benchmarks/data-serving/server/files/docker-entrypoint.sh
@@ -1,8 +1,13 @@
 #!/bin/bash
 set -e
 
-echo Server IP
-hostname --ip-address
+# It's possible that one machine has multiple ip addresses mapped to the hostname
+# For instance, ARM image inside QEMU has this problem.
+# Therefore, we will only keep the first IP address where the Cassandra server is also listened.
+
+LISTEN_IP=$(cut --delimiter=" " -f1 <<< $(hostname --ip-address))
+
+echo Server will listen on IP: $LISTEN_IP
 
 if [ -z "$CASSANDRA_SEEDS" ]; then
     NEED_INIT=1
@@ -22,13 +27,13 @@ if [ "$1" = 'cassandra' ] || [ "$1" = 'bash' ]; then
 
 	: ${CASSANDRA_LISTEN_ADDRESS='auto'}
 	if [ "$CASSANDRA_LISTEN_ADDRESS" = 'auto' ]; then
-		CASSANDRA_LISTEN_ADDRESS="$(hostname --ip-address)"
+		CASSANDRA_LISTEN_ADDRESS="$LISTEN_IP"
 	fi
 
 	: ${CASSANDRA_BROADCAST_ADDRESS="$CASSANDRA_LISTEN_ADDRESS"}
 
 	if [ "$CASSANDRA_BROADCAST_ADDRESS" = 'auto' ]; then
-		CASSANDRA_BROADCAST_ADDRESS="$(hostname --ip-address)"
+		CASSANDRA_BROADCAST_ADDRESS="$LISTEN_IP"
 	fi
 	: ${CASSANDRA_BROADCAST_RPC_ADDRESS:=$CASSANDRA_BROADCAST_ADDRESS}