I’m having high I/O usage while I’m writing memory tags. I am running Ignition 8.0.10 on linux (Centos 8.2.2004) inside a VirtualBox VM.
I have 1000 memory tags being written every second with a new value and i notice there is high disk usage. iotop show a java process (i’m not sure but it apears to be [provider-default] is doing a lot of write (about 800kb/s). Looking where is writting I have founded /var/lib/ignition/data/db/config.idb and /var/lib/ignition/data/db/config.idb-journal.
Memory tags persist their value to the internal DB, otherwise they wouldn’t be able to retain their values on gateway restart.
Is there any way of disable persistence for some memory tags? Or another type of tag (or property) that can be setup as non persistent?