This happened after 2 months running in production. No change in code.

App didnt crash, but might be that some shutdown was not clean.

Any ideas why this could happen?

oh, I am sorry to hear that. I guess it can happen if a shutdown was not properly done. what backend are you using?

What kind of schema are you using and how much data is involved?

@UCSJVFV35 I've had that happen a few times.

In my cases I dropped a non-supported type into the db.

The a while later a subsequent triggers a flush and non-supported type breaks the flush.

My fix: Export your datoms. Remove the non-supported types. Vectors, maps and ratios where the offenders in my case. Then import the db again.

I use the filestore backend.. The schema defines datatypes for all my "tables". It is about 6000 invoices, 20.000 lineitemes in all invoices, and 5 other tables with max 2000 items in each.

I am doing inserts once an hour in a scheduled import.

I did export the data, and then imported it (had to remove all schema definitions first)

I tried to change to import to the latest version, but there are some schema types that seem to be no longer supported.

Hey @UCSJVFV35. Currently there are some problems when updating datahike. @UB95JRKM3 is working on it. Can you continue running on the version you were on before?