TigerBeetle is a distributed OLTP database oriented towards financial transactions. We tested TigerBeetle 0.16.11 through 0.16.30. We discovered seven client and server crashes, including a segfault on client close and several panics during server upgrades. Single-node failures could cause significantly elevated latencies for the duration of the fault, and requests were intentionally retried forever, which complicates error handling. We found only two safety issues: missing results for queries w...