No suitable driver found for jdbc:mysql in Kafka Connect - jdbc

Question

connect-standalone.properties
connector.class=io.confluent.connect.jdbc.JdbcSourceConnector
bootstrap.servers=10.33.62.20:9092,10.33.62.110:9092,10.33.62.200:9092
key.converter=org.apache.kafka.connect.json.JsonConverter
value.converter=org.apache.kafka.connect.json.JsonConverter
key.converter.schemas.enable=true
value.converter.schemas.enable=true
offset.storage.file.filename=/tmp/connect.offsets
offset.flush.interval.ms=10000
plugin.path=/grid/1/mukul/confluent-5.0.0/share/java
source-sqlite.properties
name=test-source-sqlite-jdbc-autoincrement
connector.class=io.confluent.connect.jdbc.JdbcSourceConnector
tasks.max=5
connection.url=jdbc:mysql://10.32.177.178:3306/test&user=xxxx&password=xxxxx
table.whitelist=banner_hourly_statistics_v2
group.id=test-mysql-kafka
key.converter=org.apache.kafka.connect.json.JsonConverter
value.converter=org.apache.kafka.connect.json.JsonConverter
config.storage.topic=demo-1-distributed-config
offset.storage.topic=demo-1-distributed-offset
status.storage.topic=demo-1-distributed-status
bootstrap.servers=10.33.62.20:9092,10.33.62.110:9092,10.33.62.200:9092
mode=bulk
#incrementing.column.name=id
topic.prefix=test-sqlite-jdbc-
CMD: connect-standalone /grid/1/mukul/confluent-5.0.0/etc/kafka/connect-standalone.properties /grid/1/mukul/confluent-5.0.0/etc/kafka-connect-jdbc/source-quickstart-sqlite.properties
In the startup logs, it clearly shows loading JDBC Connectors:
[2018-08-09 06:59:30,072] INFO Loading plugin from: /grid/1/mukul/confluent-5.0.0/share/java/kafka-connect-jdbc (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader:218)
[2018-08-09 06:59:30,133] INFO Registered loader: PluginClassLoader{pluginLocation=file:/grid/1/mukul/confluent-5.0.0/share/java/kafka-connect-jdbc/} (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader:241)
[2018-08-09 06:59:30,133] INFO Added plugin 'io.confluent.connect.jdbc.JdbcSinkConnector' (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader:170)
[2018-08-09 06:59:30,133] INFO Added plugin 'io.confluent.connect.jdbc.JdbcSourceConnector' (org.apache.kafka.connect.runtime.isolation.DelegatingClassLoader:170)
But it fails with following exception:
Invalid value java.sql.SQLException: No suitable driver found for jdbc:mysql://10.32.177.178:3306/test&user=xxxx&password=xxxx for configuration Couldn't open connection to jdbc:mysql://10.32.177.178:3306/test&user=xxxx&password=xxx
Invalid value java.sql.SQLException: No suitable driver found for jdbc:mysql://10.32.177.178:3306/test&user=xxxx&password=xxxx for configuration Couldn't open connection to jdbc:mysql://10.32.177.178:3306/test&user=xxxx&password=xxxx
You can also find the above list of errors at the endpoint `/{connectorType}/config/validate`
at org.apache.kafka.connect.util.ConvertingFutureCallback.result(ConvertingFutureCallback.java:79)
at org.apache.kafka.connect.util.ConvertingFutureCallback.get(ConvertingFutureCallback.java:66)
at org.apache.kafka.connect.cli.ConnectStandalone.main(ConnectStandalone.java:110)
Tried changing the plugin directories too but it didn't work. Tried moving the confluent share/* to /usr/share/java too but it also didn't work.

Answer 1

Download the JAR from the URL: https://dev.mysql.com/downloads/connector/j/5.1.html
Place inside the Plugin dir
Run the connect
It will take start pulling data from MySql.

Answer 2

May be a little late. I had the same issue of "No Driver found.." when I connect DB2 using kafka jdbc connector.
1st Possible Solution:
I resolved it by placing the DB2 driver at the exact location where jdbc-connector is.
With in Kafka connect:
find / -name kafka-connect-jdbc\*.jar
Once you found the location from the above command, copy DB2 jar at that location:
cp {your DB2 jar location}/db2.jar {copy the location from 'find' command}
Example
cp /Download/db2.jar /Users/share/java/kafka-connect-java/
Restart kafka-connect, it will pick up the DB2 drivers
2nd Possible Solution:
Download the jt400 jar (jdk-8) and put it next to the other jdbc drivers (DB2, SQL etc)
Happy coding :)