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Server Memory Leaks

By Bra-k ·
I have a Compaq Proliant 7000, 1gig ram, raid 5, NT 4.0 Server SP6 running Oracle. For the past 3 or 4 months I have been experincing what Compaq calls memory leaks where during a course of about 24 to 36 hrs. the performance falls to a crawl. The only way to get the performance back is to reboot the server. There only about 50 users accessing this server. Compaq says for me to reload SNMP and the lastest MS patches, but I'm not running SNMP. When I put it on and Compaq Managment Agent nothing happened. Any ideas what could help. If you need more info I will put as a response to this question.

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Server Memory Leaks

by dft3 In reply to Server Memory Leaks

I can say for a fact that you need to get rid of Service Pack 6 before you do anything else. Hopefully you chose the option where you can go back to your previous Service Pack. Service Pack 5 is the most reliable to date and I strongly recommend you stay with it. Dell computers doesn't support 6 yet, and it wouldn't surprise me if Compaq doesn't either.

I think this in itself will fix your problem with the memory leaks. I'm not sure why they're telling you to reload SNMP because I don't see it as a solution.

Good luck and I hope this helps. E-mail me if you have any questions.

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Server Memory Leaks

by Bra-k In reply to Server Memory Leaks
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Server Memory Leaks

by McKayTech In reply to Server Memory Leaks

Compaq's answers are likely to be a little obtuse because a memory leak is a software problem and, except in the case of software they supply (drivers and management agents), it's really not their problem. There have been memory leak problems with SNMP, however, so that piece of advice is common.

To pin down the problem, you're going to need to figure out what software piece is not playing nicely. One way to do that is to open a Task Manager window, click on the processes tab, sort on the Memory Usage tab and do a screen print of that information right after you've re-booted. Then do that about every hour or so... any processes that grow significantly are your prime suspects and you can focus your attention on them.

Hope this helps you get started - these can really be frustrating to track down and cure.

paul

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Server Memory Leaks

by Bra-k In reply to Server Memory Leaks
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Server Memory Leaks

by fred_e944 In reply to Server Memory Leaks

Check out the Memsnap.exe utility from the NT Server ResKit. It dumps a list of what processes have what memory to a text file. The info is a bit more detailed than what you get from Task Manager.

Get rid of SP-6 (if you installed it with 128-bit encryption you may not be able to uninstall SP-6 and have SAM still work). If it's not practical to go back to SP-5 go to SP-6a + hotfixes.

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Server Memory Leaks

by Bra-k In reply to Server Memory Leaks
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Server Memory Leaks

by mwb In reply to Server Memory Leaks

You need to use performance monitor to "watch" your server processes to determine where the leak actually is. Then you can decide where to point your finger. Although it wouldn't surprise me if you found it to be the Compaq insight agents. Look at MS Knowledge Base article Q130926
for instructions on how to do this.

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Server Memory Leaks

by Bra-k In reply to Server Memory Leaks
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