# Licensed to Hortonworks, Inc. under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. Hortonworks, Inc. licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. echo "# Do not remove the following line, or various programs" > /etc/hosts echo "# that require network functionality will fail." >> /etc/hosts echo "127.0.0.1 localhost.localdomain localhost" >> /etc/hosts function get_inet_iface(){ route | grep default | awk '{print $8}' } function get_ip() { ip addr | grep 'inet ' | grep -E "($(get_inet_iface))" | awk '{ print $2 }' | awk -F'/' '{print $1}' } HOST=$(get_ip) NUM=5 while [ -z "$HOST" ]; do HOST=$(get_ip) sleep 5 NUM=$(($NUM-1)) if [ $NUM -le 0 ]; then HOST="127.0.0.1" echo "Failed to update IP" break fi done echo "$HOST `hostname`" >> /etc/hosts echo 0 > /proc/sys/kernel/hung_task_timeout_secs ethtool -K $(get_inet_iface) tso off