Limits

The hard limits, what happens when one is reached, and how to stay under it.

Limit	Value	At the limit	Instead
Fields per set	64	Throws at start.	Nest the extras in a struct, which counts as one field.
Ids and integers	Exact to 2^53	Throws.	Carry the value as a str or a buffer.
Request timeout	10 s default	The request ends timeout.	Pass a timeout per call.
Requests in flight	32768 per namespace	Throws on the next request.	Reaching this means requests are being created without completing. Look for a request loop with no timeout handling.
State budget	32 KB/s per client	Remaining state is sent in later flushes.	Pass a larger budget to flush, or split the traffic across namespaces.
Flush budget floor	1024 bytes	Throws.	Pass 1024 or more.
Unreliable payload	Just under 1 KB	Throws at start.	Drop :unreliable(), or narrow the codec.
One fire	1 MB	A flush larger than this is sent as several fires, in order.	A single payload larger than this throws. Reduce the codec's bounds.