Changing the port number for embedded ZooKeeper

Use this procedure to change the port number that IBM® Streams uses for embedded ZooKeeper. If the port number you specify is not available, embedded ZooKeeper finds an available port when it starts.

  streamtool stopdomain -d domain-id --embeddedzk

1. To display the embedded ZooKeeper property settings, enter the following command:

     streamtool getbootproperty --all

   The streams.zookeeper.property.clientPort property value is the embedded ZooKeeper port number, as shown in the following example:

   streams.zkmonitor.checkIntervalMs=50000
   streams.zkmonitor.connTimeoutMs=5000
   streams.zkmonitor.port=21820
   streams.zookeeper.jvmFlags=
   streams.zookeeper.logDir=/home/myuser/.streams/var/embeddedzk
   streams.zookeeper.property.autopurge.purgeInterval=1
   streams.zookeeper.property.autopurge.snapRetainCount=3
   streams.zookeeper.property.clientPort=21810
   streams.zookeeper.property.dataDir=/home/myuser/.streams/var/embeddedzk/datadir
   streams.zookeeper.property.initLimit=10
   streams.zookeeper.property.maxClientCnxns=0
   streams.zookeeper.property.maxSessionTimeout=180000
   streams.zookeeper.property.minSessionTimeout=-1
   streams.zookeeper.property.syncLimit=5
   streams.zookeeper.property.tickTime=3000
   streams.zookeeper.quorum=myhost.com
   streams.zookeeper.rootLogger=INFO,CONSOLE,ROLLINGFILE

2. To change the port number, use the streamtool setbootproperty command. For example, to change the port number to 21811, enter the following command:

     streamtool setbootproperty streams.zookeeper.property.clientPort=21811

   Note: Do not use a delimiter, such as a comma, when you specify the port number. For example, specifying 21,811 results in an error.
3. Start the domain by entering the following command:

     streamtool startdomain -d domain-id --embeddedzk