zookeeper 실행시 오류 .. 무엇을 해야 할까요?

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zookeeper 실행시 오류가 발생했습니다. 무엇을 해야 할까요?

교재에 있는 그대로

./bin/zookeeper-server-start.sh ./config/zookeeper.properties

이렇게 실행했구요.

./config/zookeeper.properties 내용은 아래와 같습니다.

# 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.

# the directory where the snapshot is stored.

dataDir=/tmp/zookeeper

# the port at which the clients will connect

clientPort=2181

# disable the per-ip limit on the number of connections since this is a non-production config

maxClientCnxns=0

# Disable the adminserver by default to avoid port conflicts.

# Set the port to something non-conflicting if choosing to enable this

admin.enableServer=false

# admin.serverPort=8080