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Services Involved |
Impacts |
Response |
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Services include: Matching Engine, Transaction Readers, and related database loaders Service Types include: ECHX, TXR and DLME, DLMP |
During Trading Hours: - CHX will be exposed until Matching Engine restarts if trading was not already halted at the time of the server shutdown. - Trading suspension will occur automatically upon
Matching Engine restarts; However, production stocks do not open for trading
until 6am. -All orders open in the Matching Engine will be canceled upon restart regardless of origin. -All orders sent to Matching Engine while Matching Engine is down will be rejected, regardless of source of origin. -All affected ME stocks should have quotes zeroed by QRS processes upon ME disconnect. During Off-Trading Hours: - No trading suspension considerations unless Matching Engine will not be up before 6am on a Trading Day. |
- Restart Matching Engines as soon as possible. - Notify EXECUTIVE and participants immediately if
trading suspension occurred. - If any question regarding whether or not affected
quotes have been zeroed, zero quotes via NTM Control Utility, QRS options by
ME. - Move all applications to alternate nodes. - If alternate nodes not available, move to DR nodes. - All hosts are pre-defined. - No configuration changes necessary. - All DLME database loading must be up to date in the
data center that the ME is going to be restarted in before restarts
occur. The only time a database loader
file should move between nodes is if the database loading has not been
completed and can only be completed by doing so. NOTE: TXR and DLME processes for any given ME are
typically configured to run on a separate node from the ME to try and avoid
data loss in the case of an ME crash. Restart order: TXR, ECHX, DLME, DLMP - Confirm all data accounted for around move. - Database loader files (not moved by necessity) can be
concatenated after end of day shutdown. - Confirm systems integrity and defer to ICE/NYSE
instructions before resuming trading, if trading was suspended. SEE APPLICATION SPECIFIC RECOVERY DOCUMENTATION FOR MORE
INFORMATION, IF NEEDED. |