Windows 2000 server open file limit

Post #57,383 by bbronson 10/17/02 3:48:31 PM Reply	Windows 2000 server open file limit Is there a limit to how many files can be open on a Windows 2000 server? One of our applications is trying to open a file and is being told by Windows that doing so would exceed the 512 open file limit. Nobody here is aware of any such limit; how it is set, or how it is enforced. Any help would be greatly appreciated. Brian Bronson
Post #57,392 by Silverlock 10/17/02 4:13:54 PM Reply	Never heard of that Sure it's not the app? "A civilian gang of thieving lobbyists for the military industrial complex is running the White House. If to be against them is considered unpatriotic -- Hell, then call me a traitor." -- Hunter S. Thompson
Post #57,395 by bbronson 10/17/02 4:21:40 PM Reply	Possibly the app; not sure Our app's logging is saying it got this back from the OS. Brian Bronson
Post #57,432 by Silverlock 10/17/02 6:04:13 PM Reply	Just checked Technet The only thing I can find searching on "open file limit" is as follows-- The MultipleUsersOnConnection registry value was introduced in Service Pack 4 to overcome the 2,048 open-file limit. In Microsoft Windows 2000, this limit is changed to 8,192 and the MultipleUsersOnConnection registry value is not available. "A civilian gang of thieving lobbyists for the military industrial complex is running the White House. If to be against them is considered unpatriotic -- Hell, then call me a traitor." -- Hunter S. Thompson
Post #57,490 by bbronson 10/18/02 8:34:02 AM Reply	Thanks for the info I and another here spent a few hours searching the web. I hadn't got around to technet, yet. Maybe he did and didn't tell me. I find MS site searching a bit frustrating. I've found it a real challenge to get less than 200 results but more than 0 with just about any search. Lots of info in there, just a pain to find. Brian Bronson
Post #57,549 by Silverlock 10/18/02 12:37:59 PM Reply	I subscribe Get a upadate CD every month. I only load the knowledge base for everyday searching because I can always pull out the extra cds if I need to. "A civilian gang of thieving lobbyists for the military industrial complex is running the White House. If to be against them is considered unpatriotic -- Hell, then call me a traitor." -- Hunter S. Thompson
Post #57,502 by JayMehaffey 10/18/02 9:33:26 AM Reply	Re: Windows 2000 server open file limit Your probably not hitting the Windows limit but the C library run-time limit. If the program is written using MS C run-time library it has a much lower limit on open files then the OS can support. The exact limit depends on which version of the libraries and what threading model the application uses. But I know that in some older versions the limit was as low as 64 files for a single threaded app. Jay
Post #57,592 by deSitter 10/18/02 3:54:09 PM Reply	Re: Windows 2000 server open file limit Whatever the reason, if it's opening 512 files at once, it's doing something Really Bad. -drl

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