Re: [WebDNA] sem_open solved
This WebDNA talk-list message is from 2012
It keeps the original formatting.
numero = 108303
interpreted = N
texte = I will reply for Rob: This is a Mac OSX server with 6.2 and we had two applications crashing = randomly: WebDNA and applevncserver. The server had been up for 210 = days, and during that time either a semaphore leak has used up all = available semaphores, or bad ram has caused the memory to become = corrupted and the server to lose track of how many semaphores are = available and in use. So it could be the lack of semaphores is causing = both applications to not be able to acquire locks and they are = corrupting themselves and crashing. A reboot was the first solution, and it seems it fixed the problem. The = version of 6.2 will not create anymore semaphore with identical names = and hopefully the problem should not reappear. However, if the server = crashes again within a week, then the problem is most likely a bad RAM = chip. - chris On Jan 26, 2012, at 18:58, Govinda wrote: >=20 >> I'd like to personally thank Chris and Josh for all their help on = this one, and Thierry for his part in getting it going and splitting the = costs of the executable.=20 >>=20 >> Just for anyones info, it was a 2 (maybe 3) part problem.=20 >>=20 >> 1) The executable itself >> 2) The fact that you have to restart a server after 210 days(who = knew... it's a server...sheeesh... lol ) >> 3) Maybe bad ram contributing to it, but thats a wait and see moment. >>=20 >> Prior servers to this have run for over a year without restart, but I = understand the reasoning for this, as everything related to semaphores = was all heaped up. Sometimes you get so wrapped up in this crap, you = don't think of things like that, especially when everything else seems = to run fine. >>=20 >> Anyway, its fixed, and thank you to everyone for their input and = help.=20 >=20 > Rob >=20 > Sorry if I am being foggy.. but I did not understand very well.. and = am curious. So say again, what exactly was causing your crashes? And = you solved it? How exactly? ...primarily by paying WSC for a new = version of 6.x , minus the semaphore bug? >=20 > -Govinda >=20 >=20 > --------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list
. > To unsubscribe, E-mail to: > archives: http://mail.webdna.us/list/talk@webdna.us > Bug Reporting: support@webdna.us
Associated Messages, from the most recent to the oldest:
I will reply for Rob: This is a Mac OSX server with 6.2 and we had two applications crashing = randomly: WebDNA and applevncserver. The server had been up for 210 = days, and during that time either a semaphore leak has used up all = available semaphores, or bad ram has caused the memory to become = corrupted and the server to lose track of how many semaphores are = available and in use. So it could be the lack of semaphores is causing = both applications to not be able to acquire locks and they are = corrupting themselves and crashing. A reboot was the first solution, and it seems it fixed the problem. The = version of 6.2 will not create anymore semaphore with identical names = and hopefully the problem should not reappear. However, if the server = crashes again within a week, then the problem is most likely a bad RAM = chip. - chris On Jan 26, 2012, at 18:58, Govinda wrote: >=20 >> I'd like to personally thank Chris and Josh for all their help on = this one, and Thierry for his part in getting it going and splitting the = costs of the executable.=20 >>=20 >> Just for anyones info, it was a 2 (maybe 3) part problem.=20 >>=20 >> 1) The executable itself >> 2) The fact that you have to restart a server after 210 days(who = knew... it's a server...sheeesh... lol ) >> 3) Maybe bad ram contributing to it, but thats a wait and see moment. >>=20 >> Prior servers to this have run for over a year without restart, but I = understand the reasoning for this, as everything related to semaphores = was all heaped up. Sometimes you get so wrapped up in this crap, you = don't think of things like that, especially when everything else seems = to run fine. >>=20 >> Anyway, its fixed, and thank you to everyone for their input and = help.=20 >=20 > Rob >=20 > Sorry if I am being foggy.. but I did not understand very well.. and = am curious. So say again, what exactly was causing your crashes? And = you solved it? How exactly? ...primarily by paying WSC for a new = version of 6.x , minus the semaphore bug? >=20 > -Govinda >=20 >=20 > --------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > archives: http://mail.webdna.us/list/talk@webdna.us > Bug Reporting: support@webdna.us
christophe.billiottet@webdna.us
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