This is usually a problem with RocksDB. As a quick fix, you can switch to LMDB. Add the LMDB dependency to deps.edn
and remove the RocksDB dependency:
{:deps {com.biffweb/biff {...
:exclusions [com.xtdb/xtdb-rocksdb]}
com.xtdb/xtdb-lmdb {:mvn/version "1.21.0-beta2"}
...
Then update config.edn
:
{:prod {:biff.xtdb/kv-store :lmdb
...