I have configured spring-quartz in my application it works. Schedule a job register triggers with and works fine.

Every time it restart, all the existing triggers from table get deleted but not the jobs

this my quartz configuration

spring.quartz:
  initialize-schema: never
  job-store-type: jdbc
  properties:
    org.quartz.jobStore:
      class: org.quartz.impl.jdbcjobstore.JobStoreTX
      driverDelegateClass: org.quartz.impl.jdbcjobstore.StdJDBCDelegate #(for fully JDBC-compliant drivers)
      dataSource : quartzDataSource
      isClustered: true #if you are having multiple instances of Quartz use the same set of database tables
      org.quartz.dataSource.quartzDataSource.driver: com.mysql.cj.jdbc.Driver
      org.quartz.dataSource.quartzDataSource.URL: jdbc:mysql://localhost:3306/quartz
      org.quartz.dataSource.quartzDataSource.user: root
      org.quartz.dataSource.quartzDataSource.password: admin
      org.quartz.dataSource.quartzDataSource.maxConnections: 30