SI
SI
discoversearch

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor.  We ask that you disable ad blocking while on Silicon Investor in the best interests of our community.  If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.
Non-Tech : Quote.com QCharts
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  
To: jtsaratoga who wrote (3628)9/4/1999 4:40:00 AM
From: Gibbons Burke  Read Replies (3) of 17977
 
jtsaratoga asks: "We have seen quite a lot data discrepencies among different servers these days. Do you have reliable mechinism in place to sync them at least once a day and over the weekend? If you need to make some servers running in night session, have you thought about bringing half of them off line to do the necessary maintenance and alternate them every other night?"

This is exactly what we do, but you have to realize too that we have very large databases that have to be copied around to all the servers in two different farms located at opposite ends of the continent. This mostly happens on weekend during our maintenance windows when nothing is trading, but we have restored servers overnight as well. It would be impossible to do this every night for all servers, or even half of them.

We thought we had that 7/30 volume spike licked, but it was a nasty one and one of the offline development servers didn't get fixed - when we got into a bit of a crunch we had to put that server into production and that re-introduced the spike to some users. Our attempts to fix that one have inadvertently caused some of the outages you may have experienced.

Yes - we can take servers out of production, but when there are hundreds or thousands of clients connected to it during the trading day we are reluctant to do so willy nilly because the users would be disconnected from service, and all those users would pound on another server all at once. But we can and do do this when absolutely neccesary.

--
Gibbons
Report TOU ViolationShare This Post
 Public ReplyPrvt ReplyMark as Last ReadFilePrevious 10Next 10PreviousNext  

HomeMailHotSubjectMarksPeopleMarksKeepersSettings
Terms Of UseContact UsCopyright/IP PolicyPrivacy PolicyAbout UsFAQAdvertise on SI
© 2025 Knight Sac Media.  Data provided by Twelve Data, Alpha Vantage, and CityFALCON News