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Comair System Crashes; Passengers Stranded

Broerman writes "30,000 people have had their flights cancelled by Comair this weekend thanks to a computer system shutdown. It appears that due to weather and other problems that flights began to be cancelled on Thursday and the backlog choked the system. 1,100 flights have been cancelled so far, including all flights through 12/26. Does anyone know what platform their system was based on? What kind of system just totally crashes? The official statement is that 'There was a cumulative effect with the canceled flights and trying to get crew assigned that caused the system to be overwhelmed.' It seems highly improbable that a system would crash because it had too many reservations. The system should only be able to hold as many reservations as it has flights/seats. It would seem that it's more likely that the system was overloaded with use and that caused a meltdown. When you add in the problems experienced by US Airways, this hasn't been a Merry Christmas for many."

21 of 398 comments (clear)

  1. Fire away! by weeksie · · Score: 5, Funny

    Anybody know what they were running? I'd like to see this flamewar get started as soon as possible.

  2. Bringing the /. effect to the weary masses. by Anonymous Coward · · Score: 2, Funny

    Linking to their home page will surely help the situation..

  3. My theory? by Ckwop · · Score: 4, Funny

    The janitor pulled out the plug for the mainframe and used it to drive is floor polisher..

    Simon.

    1. Re:My theory? by bcmm · · Score: 3, Funny
      BOFH excuse #38: secretary plugged hairdryer into UPS.
      That is where you got the idea for that post, right?
      --
      # cat /dev/mem | strings | grep -i llama
      Damn, my RAM is full of llamas.
    2. Re:My theory? by rlauzon · · Score: 5, Funny

      Probably not. It's an old story (quickly retold):

      Army base computer going down every night. So the grunt in charge of it stayed the night to see what was happening. When the computers went down, he heard the hum of the floor buffer.

      The janitor had plugged his floor buffer into the same power as the computers and it caused the crashes. It was quickly fixed by telling the janitor to not do that and putting locking covers on the power outlets.

      But they dreaded telling the base commander what the issue was. So they told him it was "a buffer problem."

    3. Re:My theory? by jridley · · Score: 5, Funny

      A friend was sysadmin at a manufacturing plant, and the janitor kept plugging into the power conditioned sockets with a very large, power-hungry floor polisher. He was actually blowing power supplies. Every one cost several thousand dollars in service calls to replace the power supply and downtime.

      My friend put "COMPUTER USE ONLY" stickers OVER the power-conditioned sockets. The janitor ripped them off to plug in, and blew another power supply.

      My friend finally confronted the janitor, who was a really obstinate PITA. He stood there and said "Yeah, I did it, and I'm gonna keep doing it, and I don't give a damn about you or your fu*kin' computers."

      This was a automotive union shop, very difficult to get people fired.

      But, in a show of karma rarely witnessed by mortals, the VP of the division was standing within earshot but out of sight. When the janitor finished saying he didn't give a damn that he was costing the company $10,000 a week because he was too lazy to go get an extension cord, the VP walked around the corner and said hi. I don't know whether the guy ran to his car or the VP kicked his ass right over the top of it.

    4. Re:My theory? by Anonymous Coward · · Score: 1, Funny

      We saw the same problem a few years ago, in DB2 Support. Customer kept getting a system crash around the same time of day, nothing of consequence in either the db2diag.log or the system logs. The customer couldn't recreate, and traces were getting us nothing. Eventually, as the customer kept blaming us (of course) and went critsit, we asked him to physically monitor the system terminal to see what was going on. As he was on a conference call, a janitor came in and (IIRC, got this story second-hand) plugged his vacuum into the UPS circuit.

  4. It's obvouis... by bcmm · · Score: 3, Funny
    What kind of system just totally crashes?
    Oh come on...
    That doesn't need answering.
    --
    # cat /dev/mem | strings | grep -i llama
    Damn, my RAM is full of llamas.
  5. It was running on SCO Unix... by bani · · Score: 4, Funny

    They obviously didn't take mcbride's "license or we will have you shut down" threats seriously enough.

  6. Can anyone say... by carlmenezes · · Score: 2, Funny

    ...slashdotted reservations?

    --
    Find a job you like and you will never work a day in your life.
  7. 30,000? by __aafkqj3628 · · Score: 4, Funny

    30,000 passengers? Getting dangerously close to an integer overflow there.

    1. Re:30,000? by edp · · Score: 5, Funny
      "30,000 passengers? Getting dangerously close to an integer overflow there."

      That is not a bug but an accurate model of reality. When you strand 32,768 passengers, they will turn negative.

  8. Re:System Tracked Crew Location, Not Reservations by Impy+the+Impiuos+Imp · · Score: 2, Funny

    Gosh, looks lke idiot programmer assumed a 256 length crew relocation array was big enuf fer anybuddy!

    --
    (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
  9. Read the code, Luke (episode II) by chiph · · Score: 4, Funny

    Somewhere deep in the code is a comment that says:

    // I don't need to check for this condition because
    // my asshole manager Steve Johnson says it'll
    // never happen


    {friggin' slash - When I say plain old text, I mean plain old text!}

  10. Re:Happens all the time... by Rosonowski · · Score: 2, Funny

    Wow. I would hate to be the one sitting there when that happened.

    There's some...thing on the ... wing

    --
    01101001 01100001 01101101 01101110 01101111 01110100 01100001 01101100 01100001 01110111 01111001 01100101 01110010
  11. Re:System Tracked Crew Location, Not Reservations by Pharmboy · · Score: 4, Funny

    You know, I have my OWN reservations about flying on an airline when they have no backups and can't keep their computers from crashing. Whats to keep their planes in the air?

    The last thing I want to hear at 30k feet is that my current flight has been cancelled...

    --
    Tequila: It's not just for breakfast anymore!
  12. Re:System Tracked Crew Location, Not Reservations by shyster · · Score: 3, Funny
    You know, I have my OWN reservations about flying on an airline when they have no backups and can't keep their computers from crashing. Whats to keep their planes in the air?


    The Bernoulli Principle. And I don't think computers crashing are going to affect it. This isn't the Matrix, after all.

  13. Re:Happens all the time... by TopShelf · · Score: 4, Funny

    I used to work with a guy who at one time was an HP3000 operator back when those things were as big as your average washer/dryer combo. His shop had about a dozen of these things, and one night he and a buddy were playing frizbee with the circular write-protect rings that were used on the reel-to-reel tape drives.

    Sure enough, his buddy whipped one at his head, and as he ducked out of the way, he fell back and by accident hit the power switch located on the back of one of the HP3000's. In an instant, all the ticket terminals for one airline (I can't recall which one) at O'Hare airport went down, prompting a frantic call from VP's wondering what disaster had struck. So who knows what could have happened this time around...

    --
    Stop by my site where I write about ERP systems & more
  14. Re:Happens all the time... by Coniagas · · Score: 2, Funny

    without mentioning names I have also worked on several airline systems on a contract basis. Two years ago I was asked to look at a problem with flight ops and was shown a 486 DX2/80 running Novel 2.11. I was told to just patch it till they could look at replacing the system. I did and a few months ago I was in the same office and was asked to look at the flight ops server that was "burping". They had upgraded to a P2-400 and still runnig Novel 2.11.

    I was told this was a major upgrade. Some things never change.

  15. Re:AIX? by Zeinfeld · · Score: 2, Funny
    While AIX, "Ain't unIX", might be described as Unix and the advert looks like HR drool, I'd still wager that some thing M$ failed something Sybase and that the AIX rumor is someone blowing smoke up your ass. Comparing reputations, AIX vrs. M$, the choice is clear.

    So lets think this one through for a second. The people who work there say the system that failled runs on AIX and that its the application thats gone whoopsie. So they obviously must be lying since everyone knows that the minute an application is ported to AIX all the bugs fall out of it.

    Of course with this type of thinking there is no way that reputations are ever going to change since every computer error is attributed to Windows even if it has nothing to do with the issue.

    I suspect that the HR advert is for a completely unrelated job.

    I also would hazzard a guess that the real problem at the place now is not the system anymore. The system is probably back up but they are now having to deal with planes that are in the wrong places and crews that have no flying hours left because of decisions that were taken manually while the system was down.

    --
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