Tomcat persistence manager using MongoDB as a Persistence store leads problems

Question

I used Tomcat Persistence manager with MongoDB as a persistence store.I am getting lot of problems related to this.

Tomcat not going to shutdown properly. I need to kill it later. It showing log like this.

Tomcat Log::: Jun 28, 2016 6:36:23 AM org.apache.catalina.core.StandardServer await
    INFO: A valid shutdown command was received via the shutdown port.Stopping the Server instance.
    Jun 28, 2016 6:36:23 AM org.apache.coyote.AbstractProtocol pause
    INFO: Pausing ProtocolHandler ["http-bio-9082"]
    Jun 28, 2016 6:36:23 AM org.apache.coyote.AbstractProtocol pause
    INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
    Jun 28, 2016 6:36:23 AM org.apache.catalina.core.StandardService stopInternal
    INFO: Stopping service Catalina
    Jun 28, 2016 6:36:23 AM com.mongodb.diagnostics.logging.JULLogger log
    INFO: Closed connection [connectionId{localValue:24, serverValue:619}] to <host ip>:<port> because the underlying connection was closed.

After that no response.Then I manually killed that process.

MongoDB collection creating documents more than I expected(approxiamately 100 times). I took reference from these pages.

• Tomcat Persistence manager

• Mongo Store

Can Any One help regarding these issues?