Invalid Config, Exiting abnormally when launching zookeper from Kafka tutorial - apache-kafka

Question

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

Answer 1

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.

Answer 2

I fixed this on Windows by doing below.
Make sure to specify full paths.
First, go to the bin\windows folder of your kafka installation:
C:\kafka_2.12-2.0.0\bin\windows
Then, run the following command:
.\zookeeper-server-start.bat C:\kafka_2.12-2.0.0\config\zookeeper.properties
When done, you will see the following output:
[2020-07-06 20:25:13,703] INFO Server environment:user.dir=C:\kafka_2.12-2.0.0\bin\windows (org.apache.zookeeper.server.ZooKeeperServer)
[2020-07-06 20:25:13,716] INFO tickTime set to 3000 (org.apache.zookeeper.server.ZooKeeperServer)
[2020-07-06 20:25:13,717] INFO minSessionTimeout set to -1 (org.apache.zookeeper.server.ZooKeeperServer)
[2020-07-06 20:25:13,717] INFO maxSessionTimeout set to -1 (org.apache.zookeeper.server.ZooKeeperServer)
[2020-07-06 20:25:13,787] INFO Using org.apache.zookeeper.server.NIOServerCnxnFactory as server connection factory (org.apache.zookeeper.server.ServerCnxnFactory)
[2020-07-06 20:25:13,791] INFO binding to port 0.0.0.0/0.0.0.0:2181 (org.apache.zookeeper.server.NIOServerCnxnFactory)

Answer 3

You are using following to start the zookeeper:
bin/zookeeper-server-start.sh config/server.properties
Zookeeper configuration settings are placed in zookeeper.properties file.
So, to start zookeeper:
bin/zookeeper-server-start.sh config/zookeeper.properties
And for starting KAFKA server:
bin/kafka-server-start.sh config/server.properties
Keep in mind which file comes with which server.

Answer 4

I am facing same issue because I am directly giving step2 command in my terminal,which is wrong. We have to run command of step2 in our Kafka folder.
Follow below steps to run zookeeper successfully.
Step1: Goto your kafka folder or simply do cd $KAFKA_HOME
STEP2: bin/zookeeper-server-start.sh ./config/zookeeper.properties

Answer 5

check for "dataDir=/tmp/zookeeper1", if not present then create a directory and one file inside this directory myid
mkdir -p /tmp/zookeeper1
chmod -R 777 /tmp/zookeeper1
vi /tmp/zookeeper1/myid
(add value as 1, this is server-id from server.1=)

Answer 6

Try to remove config/ , and use the file directly.
e.g.
bin/zookeeper-server-start.sh zookeeper.properties