Openfire.lobs this file growing and taking very size this should rotate

I was facing an issuewhen I was using the embedded DB with the newest build of Openfire.
My “openfire.script” was growing high, and whenever I restarted this file, which was growing high, some DB error was occurring & those were printed in that log.
After the solution is provided as “Try creating or updating the property with the name provider.pubsub-persistence.className to value org.jivesoftware.openfire.pubsub.DefaultPubSubPersistenceProvider. You need to restart Openfire afterward.”
Issue resolved, and the “openfire.script” file is now stable.
But “openfire.lobs” has been growing like crazy since last Friday, when we deployed a new build, and now it is 1.5 GB.
“openfire.lobs,” why is this growing??
It should rotate, right?
It should not grow so much.
The last build, 4.9.2, I was using for the last 3 months, and that file was 55 MB.
Same as “openfire.log” in the embedded DB folder. The folder is now 5 MB, which was only 1.2 MB in the last build, which was used for 3 months.

Can i get update on this ??

Since there is not any data being presented by you that could be used to identify whats happening, there is not really a way to help you really fix the problem.
That being said, my recommendation for a workaround would be for you to run your Openfire with a really proper database, like Mysql or Postgresql. These are battle tested databases runned by many users(there for chances of bugs here are way way smaller).

I just saw that the file size steadily shrank after restarting.