This page gives a list of common errors you may experience with ZooKeeper on Windows.

C:\programs\zookeeper>bin\zkServer.cmd
The system cannot find the path specified.
Error: JAVA_HOME is incorrectly set.

C:\programs\zookeeper>call ... org.apache.zookeeper.server.quorum.QuorumPeerMain "C:\programs\zookeeper\bin\..\conf\zoo.cfg"
The filename, directory name, or volume label syntax is incorrect.

C:\programs\zookeeper>endlocal

How to fix this error:
▸ (Windows) you have to double-quote the path "%JAVA_HOME%\bin\java.exe" in the file "%ZK_ROOT%\bin\zkEnv.cmd"

C:\programs\zookeeper>bin\zkServer.cmd

C:\programs\zookeeper>call ... org.apache.zookeeper.server.quorum.QuorumPeerMain "C:\programs\zookeeper\bin\..\conf\zoo.cfg"
'C:\Program' is not recognized as an internal or external command, operable program or batch file.

C:\programs\zookeeper>endlocal

• How to fix this error - Solution (1):
  ▸ (Windows) you have to double-quote the path "%JAVA%" in the file "%ZK_ROOT%\bin\zkServer.cmd"
  
  
• How to fix this error - Solution (2):
  ▸ Copy and rename the file "%ZK_ROOT%\conf\zoo_sample.cfg" to "%ZK_ROOT%\conf\zoo.cfg"
  

C:\programs\zookeeper>bin\zkServer.cmd

C:\programs\zookeeper>call ... org.apache.zookeeper.server.quorum.QuorumPeerMain "C:\programs\zookeeper\bin\..\conf\zoo.cfg"
09:08:08,031 [myid:] - INFO  [main:QuorumPeerConfig@316] - clientPortAddress is 0.0.0.0/0.0.0.0:2181
09:08:08,031 [myid:] - INFO  [main:QuorumPeerConfig@320] - secureClientPort is not set
09:08:08,047 [myid:] - ERROR [main:QuorumPeerMain@86] - Invalid config, exiting abnormally
org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error processing C:\programs\zookeeper\bin\..\conf\zoo.cfg
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:135)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:110)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79)
Caused by: java.lang.IllegalArgumentException: myid file is missing
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.checkValidity(QuorumPeerConfig.java:637)
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.setupQuorumPeerConfig(QuorumPeerConfig.java:508)
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parseProperties(QuorumPeerConfig.java:348)
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:131)
        ... 2 more
Invalid config, exiting abnormally

How to fix this error:
▸ You have to create the directory that is defined by the property "dataDir" in the file "%ZK_ROOT%\conf\zoo.cfg".

▸ You have to add a "myid" file to this directory ("dataDir").

▸ You have also to create the directory that is defined by the property "dataLogDir" in the file "%ZK_ROOT%\conf\zoo.cfg".

C:\programs\zookeeper>bin\zkServer.cmd

C:\programs\zookeeper>call ... org.apache.zookeeper.server.quorum.QuorumPeerMain "C:\programs\zookeeper\bin\..\conf\zoo.cfg"
10:09:30,480 [myid:] - INFO  [main:QuorumPeerConfig@114] - Reading configuration from: C:\programs\zookeeper\bin\..\conf\zoo.cfg
10:09:30,487 [myid:] - INFO  [main:QuorumPeerConfig@316] - clientPortAddress is 0.0.0.0/0.0.0.0:2181
10:09:30,488 [myid:] - INFO  [main:QuorumPeerConfig@320] - secureClientPort is not set
10:09:30,489 [myid:] - ERROR [main:QuorumPeerMain@86] - Invalid config, exiting abnormally
org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error processing C:
hiprogramszookeeperconfzoo.cfg.dynamic.100000000
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:160)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:110)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79)
Caused by: java.io.FileNotFoundException: C:
hiprogramszookeeperconfzoo.cfg.dynamic.100000000 (The filename, directory name, or volume label syntax is incorrect)
        at java.io.FileInputStream.open0(Native Method)
        at java.io.FileInputStream.open(FileInputStream.java:195)
        at java.io.FileInputStream.<init>(FileInputStream.java:138)
        at java.io.FileInputStream.<init>(FileInputStream.java:93)
        at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:141)
        ... 2 more
Invalid config, exiting abnormally

• How to fix this error - Solution (1):
  
  ▸ file "%ZK_ROOT%\conf\zoo.cfg": delete this line
  

  dynamicConfigFile=./conf/zoo.cfg.dynamic.100000000
  

  ▸ file "%ZK_ROOT%\conf\zoo.cfg": add the server(s) static configuration
  

  server.1=localhost:2888:3888
  

  ▸ You can delete the file "%ZK_ROOT%\conf\zoo.cfg.dynamic.100000000"
  
  
• How to fix this error - Solution (2):
  
  I had to change the config in the file "%ZK_ROOT%\conf\zoo.cfg"
  
  Current config:
  

  dynamicConfigFile=C:\programs\zookeeper\conf\zoo.cfg.dynamic.100000000
  

  Replaced with:
  

  dynamicConfigFile=./conf/zoo.cfg.dynamic.100000000
  

• How to fix this error - Solution (3):
  
  I had to change the config in the file "%ZK_ROOT%\conf\zoo.cfg"
  
  Current config:
  

  dynamicConfigFile=C:\programs\zookeeper\conf\zoo.cfg.dynamic.100000000
  

  Replaced with:
  

  dynamicConfigFile=C\:/programs/zookeeper/conf/zoo.cfg.dynamic.100000000
  

C:\programs\zookeeper>bin\zkServer.cmd "C:\programs\zookeeper\conf\zoo.cfg"

15:25:41,230 [myid:2] - WARN  [main:QuorumPeer@723] - Problem starting AdminServer
org.apache.zookeeper.server.admin.AdminServer$AdminServerException: Problem starting AdminServer on address 0.0.0.0, port 8080 and command URL /commands
        at org.apache.zookeeper.server.admin.JettyAdminServer.start(JettyAdminServer.java:100)
        at org.apache.zookeeper.server.quorum.QuorumPeer.start(QuorumPeer.java:721)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.runFromConfig(QuorumPeerMain.java:183)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:120)
        at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:79)
Caused by: java.net.BindException: Address already in use: bind
        at sun.nio.ch.Net.bind0(Native Method)
        at sun.nio.ch.Net.bind(Net.java:433)
        at sun.nio.ch.Net.bind(Net.java:425)
        at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
        at org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
        at org.mortbay.jetty.nio.SelectChannelConnector.doStart(SelectChannelConnector.java:315)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at org.mortbay.jetty.Server.doStart(Server.java:235)
        at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
        at org.apache.zookeeper.server.admin.JettyAdminServer.start(JettyAdminServer.java:96)
        ... 4 more

How to fix this error:
The default port is 8080 for the Jetty enbeded server.

▸ use the property "admin.serverPort" in the "zoo.cfg" file to set a different port: "admin.serverPort=8081"

▸ or, modify the "zkServer.cmd" file and use the java system property "zookeeper.admin.serverPort" to override the default value.

call "%JAVA%" "-Dzookeeper.admin.serverPort=8081" ...