Merge pull request kubernetes#36062 from wojtek-t/etcd_migration_logs

Automatic merge from submit-queue

Extend etcd migration logs

Ref kubernetes#20504

Author: Kubernetes Submit Queue

cluster/images/etcd/migrate-if-needed.sh

@@ -114,17 +114,16 @@ start_etcd() {
     --listen-client-urls http://127.0.0.1:${ETCD_PORT} \
     --advertise-client-urls http://127.0.0.1:${ETCD_PORT} \
     --listen-peer-urls http://127.0.0.1:${ETCD_PEER_PORT} \
-    --initial-advertise-peer-urls http://127.0.0.1:${ETCD_PEER_PORT} \
-    1>>/dev/null 2>&1 &
+    --initial-advertise-peer-urls http://127.0.0.1:${ETCD_PEER_PORT} &
   ETCD_PID=$!
   # Wait until we can write to etcd.
   for i in $(seq 240); do
+    sleep 0.5
     ETCDCTL_API="${API_VERSION}" ${ETCDCTL_CMD} 'etcd_version' ${START_VERSION}
     if [ "$?" -eq "0" ]; then
       echo "Etcd on port ${ETCD_PORT} is up."
       return 0
     fi
-    sleep 0.5
   done
   echo "Timeout while waiting for etcd on port ${ETCD_PORT}"
   return 1