Stale Records

Data stream records are marked stale when certain adapter functions fail.

When the adapter starts, it sends finalization instructions to Event Stream Processor. These instructions are run if communication with the adapter is lost or if the adapter fails to deliver two consecutive heartbeats. The finalization procedure sets the stale flag to 1 (true) in all records of all configured adapter data streams.

Data stream records are also marked stale if:

A subscription is deactivated.
The adapter receives a market data gap message.
The adapter receives an order book gap message.
The adapter receives a transport disconnect message from the NYSE data feed.
The adapter is about to shut down due to a user command or fatal error condition.