设置单个Zookeeper实例并且绑定失败

问题描述 投票：0回答：7

我正在尝试使用下面的配置设置单个zookeeper实例，但是启动日志表明zookeeper在尝试绑定端口2181时停止运行。有人可以让我知道这里的问题吗？谢谢你。

启动日志；

    2014-07-18 16:00:48,976 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration from: /opt/zookeeper/bin/../conf/zoo.cfg
2014-07-18 16:00:48,980 [myid:] - ERROR [main:QuorumPeerConfig@289] - Invalid configuration, only one server specified (ignoring)
2014-07-18 16:00:48,982 [myid:] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2014-07-18 16:00:48,982 [myid:] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2014-07-18 16:00:48,983 [myid:] - INFO  [main:DatadirCleanupManager@101] - Purge task is not scheduled.
2014-07-18 16:00:48,983 [myid:] - WARN  [main:QuorumPeerMain@113] - Either no config or no quorum defined in config, running  in standalone mode
2014-07-18 16:00:48,997 [myid:] - INFO  [main:QuorumPeerConfig@103] - Reading configuration from: /opt/zookeeper/bin/../conf/zoo.cfg
2014-07-18 16:00:48,998 [myid:] - **ERROR** [main:QuorumPeerConfig@289] - Invalid configuration, only one server specified (ignoring)
2014-07-18 16:00:48,998 [myid:] - INFO  [main:ZooKeeperServerMain@95] - Starting server
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:host.name=<NA>
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:java.version=1.7.0_51
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:java.vendor=Oracle Corporation
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:java.home=/usr/java/jdk1.7.0_51/jre
2014-07-18 16:00:49,007 [myid:] - INFO  [main:Environment@100] - Server environment:java.class.path=/opt/zookeeper/bin/../build/classes:/opt/zookeeper/bin/../build/lib/*.jar:/opt/zookeeper/bin/../lib/slf4j-log4j12-1.6.1.jar:/opt/zookeeper/bin/../lib/slf4j-api-1.6.1.jar:/opt/zookeeper/bin/../lib/netty-3.7.0.Final.jar:/opt/zookeeper/bin/../lib/log4j-1.2.16.jar:/opt/zookeeper/bin/../lib/jline-0.9.94.jar:/opt/zookeeper/bin/../zookeeper-3.4.6.jar:/opt/zookeeper/bin/../src/java/lib/*.jar:/opt/zookeeper/bin/../conf:
2014-07-18 16:00:49,008 [myid:] - INFO  [main:Environment@100] - Server environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2014-07-18 16:00:49,010 [myid:] - INFO  [main:Environment@100] - Server environment:java.io.tmpdir=/tmp
2014-07-18 16:00:49,010 [myid:] - INFO  [main:Environment@100] - Server environment:java.compiler=<NA>
2014-07-18 16:00:49,010 [myid:] - INFO  [main:Environment@100] - Server environment:os.name=Linux
2014-07-18 16:00:49,010 [myid:] - INFO  [main:Environment@100] - Server environment:os.arch=amd64
2014-07-18 16:00:49,011 [myid:] - INFO  [main:Environment@100] - Server environment:os.version=3.10.0-123.4.2.el7.x86_64
2014-07-18 16:00:49,011 [myid:] - INFO  [main:Environment@100] - Server environment:user.name=root
2014-07-18 16:00:49,011 [myid:] - INFO  [main:Environment@100] - Server environment:user.home=/root
2014-07-18 16:00:49,011 [myid:] - INFO  [main:Environment@100] - Server environment:user.dir=/opt/zookeeper/bin
2014-07-18 16:00:49,018 [myid:] - INFO  [main:ZooKeeperServer@755] - tickTime set to 2000
2014-07-18 16:00:49,018 [myid:] - INFO  [main:ZooKeeperServer@764] - minSessionTimeout set to -1
2014-07-18 16:00:49,018 [myid:] - INFO  [main:ZooKeeperServer@773] - maxSessionTimeout set to -1
2014-07-18 16:00:49,029 [myid:] - INFO  [main:NIOServerCnxnFactory@94] - binding to port 0.0.0.0/0.0.0.0:2181

Zookeeper 配置文件。

    # The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/opt/zookeeper/data
# the port at which the clients will connect
clientPort=2181
#log directory.
dataLogDir=/opt/zookeeper/log

server.1=localhost:2888:3888

# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
apache-zookeeper solrcloud
7个回答
0
投票

我建议您从配置文件中删除以下行

server.1=localhost:2888:3888

然后重新启动服务器。

0
投票

在 CentOS 上，您可以编辑以下文件并添加 _JAVA_OPTIONS 行

sudo vim /etc/default/zookeeper

导出_JAVA_OPTIONS =“-Djava.net.preferIPv4Stack = true”

然后重新启动进程

sudo service zookeeper-server restart
0
投票

如果您正在运行独立的 Zookeeper 进行测试/开发，请在 

zoo.cfg
中注释此行：
#server.1=localhost:2888:3888

然后，代替：

错误 [main:QuorumPeerConfig@289] - 无效配置，仅指定一台服务器（忽略）

你会看到：

警告 [main:QuorumPeerMain@125] - 没有配置或没有仲裁 在config中定义，以独立模式运行

参考：

服务器.1=zoo1:2888:3888
server.2=zoo2:2888:3888
server.3=zoo3:2888:3888

server.X 表单的条目列出了组成该服务器的服务器 动物园管理员服务。当服务器启动时，它知道它是哪个服务器 就是通过在数据目录中查找文件myid。该文件有 包含服务器编号（ASCII 格式）。

最后，记下每个服务器名称后面的两个端口号：“2888”和 “3888”。对等点使用前一个端口连接到其他对等点。这样一个 连接是必要的，以便对等方可以进行通信，例如 就更新顺序达成一致。更具体地说，ZooKeeper 服务器 使用此端口将追随者连接到领导者。当新领导 出现时，追随者使用此打开到领导者的 TCP 连接 港口。因为默认的领导者选举也使用TCP，所以我们目前 需要另一个端口进行领导者选举。这是第二个港口 服务器入口。

0
投票

我的单模式配置文件（zoo.cfg）在这里并且可以正常工作：

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=5
# The number of ticks that can pass between 
# sending a request and getting an acknowledgement
syncLimit=2
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/usr/local/zookeeper/data
# the port at which the clients will connect
clientPort=2181
admin.serverPort=8081
4lw.commands.whitelist=*
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current  /zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
-1
投票

我想提一下，当您收到以下日志消息时，这意味着服务器实际上已启动。

INFO  [main:NIOServerCnxnFactory@94] - binding to port 0.0.0.0/0.0.0.0:2181

如果您有如下所示的单个 Zookeeper 实例，您看到的错误消息实际上是警告而不是错误。

2014-07-18 16:00:48,980 [myid:] - ERROR [main:QuorumPeerConfig@289] - Invalid configuration, only one server specified (ignoring)
-1
投票

尝试将其添加到zoo.cfg中 

quorumListenOnAllIPs=true

-3
投票

您是否在 Windows 64 位上运行 Zookeeper？我也遇到了同样的问题，但后来发现不支持 Win64。请参阅 Zookeeper 链接 http://zookeeper.apache.org/doc/r3.4.5/zookeeperAdmin.html#sc_supportedPlatforms

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