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тАО04-23-2003 04:32 AM
тАО04-23-2003 04:32 AM
I wonder if anyone can help.
I recently purchased an rp2470 1 x 650MHz CPU 1GB Mem (est 16k tpm). I am using this as a development server for Ingress however it is running like a dog!
I think that I have all the correct OS and application patches!
To make matters worse I installed the same software on an rp5430 2 x 550Mhz CPU (est 18k tpm) and it works about 6 times faster!!!
Does anyone know what is going on? I think that it might be because it is on a 1 CPU server... or memory??
When doing a query the CPU is maxing out!
Thanks in advance!
Solved! Go to Solution.
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тАО04-23-2003 04:41 AM
тАО04-23-2003 04:41 AM
Re: Ingress running like a dog!
We currently have a call open with CA regarding this issue (dbms starts to run at 100% of one CPU, and effectively locks out all transactions until the database processes are re-started) - we have been waiting for a patch for a few of months now.
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тАО04-23-2003 04:43 AM
тАО04-23-2003 04:43 AM
Re: Ingress running like a dog!
Cheers
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тАО04-23-2003 05:02 AM
тАО04-23-2003 05:02 AM
Re: Ingress running like a dog!
I have 2470's with 1Gb on 11.0 and 11i. Ingres works like a charm.
11.0: ingres version II 2.5/0011 (hpb.us5/00)
11.i: ingres version II 2.0/0001 (hpb.us5/00)
(which are not current verions, but why change a winning team)
Good luck
Donald
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тАО04-23-2003 05:59 AM
тАО04-23-2003 05:59 AM
Re: Ingress running like a dog!
Hope it's of some use?
http://support.ca.com/techbases/ingres/ingres_manuals/ingres_docs.html
Mark
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тАО04-24-2003 12:11 AM
тАО04-24-2003 12:11 AM
SolutionBug 107914 talks about CPU hangs with internal threads, cache sharing and group buffers.
This is supposedly fixed in newer patches, although we have recently applied patch 9154, and have still seen the problems.
We have been running Ingres II under HP-UX 11.0 on a variety of R, D and L class servers, and have not encountered this problem - it appears to be related to either HP-UX 11i, or the higher spec machine.
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тАО07-08-2003 06:12 AM
тАО07-08-2003 06:12 AM
Re: Ingress running like a dog!
It is believed that this is fixed in patch9374 (from "Ingres II Corrections" portion of the related doc file)
(GENERIC)
In a multiple dbms installation with internal thread type and group buffers, running large update transactions, a dbms server may appear to hang with 99% cpu. (107914)
As we have only received the patch today, I am unable to confirm at this time if the problem is definitely fixed, but I will pass this information on as soon as possible.
Chris
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тАО07-21-2003 05:55 AM
тАО07-21-2003 05:55 AM
Re: Ingress running like a dog!
Has the patch supplied by CA fixed the problem. We have a similar scenario, where we have multiple DBMS servers and when running large updates the DBMS servers all go to the top of the CPU utilization process list.
The servers don't hang but simply eat up CPU.
Thanks
Mike
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тАО07-21-2003 08:02 AM
тАО07-21-2003 08:02 AM
Re: Ingress running like a dog!
This has been on test for a week or so, with no sign of problems.
From the patch doc
(GENERIC)
In a multiple dbms installation with internal thread type
and group buffers, running large update transactions,
a dbms server may appear to hang with 99% cpu.
(107914)
It also fixes another "known" issue that CA informed us of which they refer to as the "query-flattening" problem. This was an issue that we encountered a couple of times, and that we were able to reproduce at will (rather than the server hanging problem which appeared to be random).
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тАО07-22-2003 01:14 AM
тАО07-22-2003 01:14 AM
Re: Ingress running like a dog!
Can you give an idea of how your problem manifests itself. We have Ingres installed on a muli processor machine running 7 DBMS servers with over 3,600 connections. When we have peak load and a large amount of updates taking place with Ingres, the DBMS servers all go into a 'high cpu' state and sit at the top of the process table. We can still interact with the DBMS servers 'albeit extremely slowly' and if we remove around 150 sessions they seem to recover.
However we are running OS threads on a TRU64 machine, so Im trying to ascertain if the symptoms appear to be similar, and are related to Ingres, rather than the flavour of Unix.
Thanks
Mike