I am running mango on a raspberry pi ( very well for 8 months ).
The version is 3.5.6 and have just added a modbus ethernet publisher for a remote PLC. This worked fine for a few days. I then attempted to modify the publisher by adding another point, but did not update the register field (left it on zero) when I saved the publisher.
The web interface lost connection.
The top command shows java is at 100%
Attempted a ma.sh stop and start, and the log file shows
ERROR 2019-02-28T13:40:58,349 (com.infiniteautomation.modbus.publisher.rt.ModbusIpSlave.receivedException:189) - Publisher Slave Error
ERROR 2019-02-28T11:16:17,844 (com.serotonin.m2m2.web.dwr.util.ExceptionDetectionFilter.doFilter:38) - DWR invocation exception com.serotonin.modbus4j.sero.ShouldNeverHappenException: Unsupported Regsiter Type: 0
ERROR 2019-02-28T13:41:37,334 (com.serotonin.m2m2.db.dao.AbstractBasicDao$1.extractData:1043) - IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: The database has been closed [90098-196]"; "lob: null table: -3 id: 48567" [90031-196]
Can I connect to the H2 database and delete the publisher ?