# Please put the mock data source as the first in this configuration.
dataSourceConfigs:
  - className: org.apache.pinot.thirdeye.datasource.pinot.PinotThirdEyeDataSource
    properties:
      zookeeperUrl: 'localhost:2181'
      clusterName: 'PinotCluster'
      controllerConnectionScheme: 'http'
      controllerHost: '127.0.0.1'
      controllerPort: 9000
      cacheLoaderClassName: org.apache.pinot.thirdeye.datasource.pinot.PinotControllerResponseCacheLoader
    metadataSourceConfigs:
      - className: org.apache.pinot.thirdeye.auto.onboard.AutoOnboardPinotMetadataSource

I used this configuration, and got an error.

2022-05-17 18:26:33.104 [main] INFO  org.apache.pinot.thirdeye.datalayer.util.DaoProviderUtil - Using existing database at 'jdbc:mysql:///thirdeye?autoReconnect=true'
May 17, 2022 6:26:37 PM org.apache.tomcat.jdbc.pool.ConnectionPool init
SEVERE: Unable to create initial connections of pool.
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

Do you have any suggestion for this error?