Full ERROR Message Example

Batchlog manager timed out shutting down

What does this ERROR message mean?

This error means that the batchlog executors (internal task managers) could not be stopped within a minute when draining the node.

Why does this ERROR occur?

This likely would occur on a very heavily loaded node where messages passed to the batchlog executors were taking a long time to send, be received, and/or be processed.

How do you fix this ERROR?

There's nothing to fix here and really nothing to worry about. While you should be concerned that your nodes are so loaded that inter-thread message passing couldn't complete in under a minute, you don't need to worry about the batchlog mechanism itself. We durably store batches in the system.batches table, locally, and when you restart the node, any batches present there will periodically attempt to be delivered.