| #!/usr/bin/env bash |
| # Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF 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. |
| |
| if [ "$#" -ne 2 ]; then |
| echo "Usage: $0 <zookeeper-host> <zookeeper-port>" |
| exit 1 |
| fi |
| |
| WAIT_ZK_HOST=$1 |
| WAIT_ZK_PORT=$2 |
| |
| while true; do |
| status=$(echo ruok | nc $WAIT_ZK_HOST $WAIT_ZK_PORT); |
| writestatus=$(echo isro | nc $WAIT_ZK_HOST $WAIT_ZK_PORT) |
| if [ "$status" = "imok" ] && [ "$writestatus" == "rw" ]; then |
| echo "Zookeeper $WAIT_ZK_HOST:$WAIT_ZK_PORT is ready"; |
| exit 0 |
| fi; |
| echo "Zookeeper $WAIT_ZK_HOST:$WAIT_ZK_PORT not ready"; |
| sleep 4; |
| done |