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I'm following this tutorial trying to set up kafka,
https://kafka.apache.org/quickstart
And I get this error when doing the part on zookeeper. It certainly has something to do with the config, but I don't understand to what extend.
bin/zookeeper-server-start.sh config/server.properties
[2018-03-17 03:27:11,623] INFO Reading configuration from: config/server.properties (org.apache.zookeeper.server.quorum.QuorumPeerConfig)
[2018-03-17 03:27:11,628] ERROR Invalid config, exiting abnormally (org.apache.zookeeper.server.quorum.QuorumPeerMain)
org.apache.zookeeper.server.quorum.QuorumPeerConfig$ConfigException: Error processing config/server.properties
at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:154)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:101)
at org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:78)
Caused by: java.lang.NumberFormatException: For input string: "initial.rebalance.delay.ms"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:589)
at java.lang.Long.parseLong(Long.java:631)
at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parseProperties(QuorumPeerConfig.java:242)
at org.apache.zookeeper.server.quorum.QuorumPeerConfig.parse(QuorumPeerConfig.java:150)
... 2 more
Invalid config, exiting abnormally
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Replacing ZooKeeper with internally managed metadata will improve scalability and management, according to Kafka's developers. Change is coming for users of Apache Kafka, the leading distributed event-streaming platform.
In Kafka architecture, Zookeeper serves as a centralized controller for managing all the metadata information about Kafka producers, brokers, and consumers. However, you can install and run Kafka without Zookeeper.
ZooKeeper is used in distributed systems for service synchronization and as a naming registry. When working with Apache Kafka, ZooKeeper is primarily used to track the status of nodes in the Kafka cluster and maintain a list of Kafka topics and messages.
If you look closely, you'll notice that the command to start Zookeeper is:
bin/zookeeper-server-start.sh config/zookeeper.properties
Using the zookeeper.properties file.
It looks like you copied the command to start Kafka which is using server.properties.
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