Title: A gremlin in the coffee machine last night Post by: grahame on October 10, 2023, 07:17:00 Some unusual behaviour late yesterday evening within our database engine and we had a handful of outages no more than a few minutes each; I paused the service of Coffee a couple of times while I investigated and took additional off-site backups. Problems cleared in the early hours, but I have no definitive answer to what triggered them - just an educated guess. Issues did NOT get to the point of formally shutting for maintenance or flagging ongoing issues, but please bookmark http://status.passenger.chat in case we ever hit something more serious.
Standard advice (abundance of caution) - if you compose a long or difficult post, please keep a local copy just in case - our systems are not strong to a safety-critical standard and should the server crash or have an accident, restoration may miss some recent activity. Title: Re: A gremlin in the coffee machine last night Post by: grahame on October 15, 2023, 22:57:50 Some unusual behaviour late yesterday evening within our database engine and we had a handful of outages no more than a few minutes each; I paused the service of Coffee a couple of times while I investigated and took additional off-site backups. Problems cleared in the early hours, but I have no definitive answer to what triggered them .... Triggered again and a Denial of Service attack caught in the act today. Gauges went off the scale but the server carried on running and because it was caught in the act I could see what was happening, block (at midday) and see that the block worked ... (http://www.wellho.net/pix/dos_20231015.jpg) This page is printed from the "Coffee Shop" forum at http://gwr.passenger.chat which is provided by a customer of Great Western Railway. Views expressed are those of the individual posters concerned. Visit www.gwr.com for the official Great Western Railway website. Please contact the administrators of this site if you feel that content provided contravenes our posting rules ( see http://railcustomer.info/1761 ). The forum is hosted by Well House Consultants - http://www.wellho.net |