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Database Troubleshooting
It is likely ADEL fields on some records are causing a lot of logging. You can run e.g.
python utils\archive_rates.py --host=ndximat
To see which PVs are doing this
Look for mysqld.exe task running in task manager or for the service MQSQLXX (currently 57) running. If it is not running log files are in ...var\mysql\Data\XXX.err. To start it as an admin start the services from the start menu then start the MYSQLXX service.
Database disc space is taken up by tables stored in C:\Instrument\Var\mysql\data the space can be regained by truncating the table. This could lose the data and will certainly remove it from the database so be careful. At various stages you will be prompted for the database password it is on the passwords page.
First create a sql dump of the two largest schemas:
"c:\Program Files\MySQL\MySQL Server 5.7\bin\mysqldump.exe" -u root -p msg_log > "c:\data\old\ibex_backup_YYYY_MM_DD\msg_log.sql"
"c:\Program Files\MySQL\MySQL Server 5.7\bin\mysqldump.exe" -u root -p archive > "c:\data\old\ibex_backup_YYYY_MM_DD\archive.sql"
Check the files look right and move them to a directory called ibex_db_backup_YYYY_MM_DD and move the folder to long term storage (\\isis\inst$\backups$\stage-deleted\<inst>). Then from a command prompt:
"c:\Program Files\MySQL\MySQL Server 5.7\bin\mysql.exe" -u root -p
Truncate the message log tables with:
truncate table msg_log.message;
truncate table archive.sample;
exit
If the tables data file were created in the wrong place they can be moved using the following.
1. Open services.msc
1. Ensure that the mysql service is running under `NETWORK SERVICE` and copy the command line
1. Stop mysql service
1. Open command line in admin mode
1. Remove the old service: `"C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld" --remove MySQL57`
1. Move the data file from `C:\ProgramData\MySQL\data` to `C:\Instrument\Var\mysql\data`
1. Copy the my.ini file into `C:\Instrument\Var\mysql\` from `EPICS\SystemSetup`
1. Create a new service: `"C:\Program Files\MySQL\MySQL Server 5.7\bin\mysqld" --install MySQL57 --defaults-file=\"C:\Instrument\Var\mysql\my.ini\"
1. Set the user running the service: LogOn tab -> This account to `NETWORK SERVICE` no password (this removes the notes and when you click start adds them back in)
1. Start the service