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The Compression filter cannot handle a response because... - 11.Jan.2007 6:09:29 AM

jpevenhuis

Posts: 2
Joined: 11.Jan.2007
Status: offline

Hi,

Using ISA 2006 Standard, we are suffering the following problem/alert:

The Compression filter cannot handle a response because the allocated memory currently used for compression reached its limit. The memory allocated for compression is specified by the following registry values under the HKLM\Software\Microsoft\RAT\Stingray\Debug\W3Filter key: COMPRESS_MEMORY_ALLOC_MBYTES (by default, 256) and COMPRESS_MEMORY_POOL_BLOCKS (by default, 200).

Published websites are down from that moment.
On the ISA 2006 server, the HKLM\Software\Microsoft\RAT\Stingray\Debug\W3Filter registry key does not even exist.

I have now added the registry key, but I have no idea if that will solve the problem.

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RE: The Compression filter cannot handle a response bec... - 19.Jan.2007 1:03:09 PM

uday.sambhara

Posts: 2
Joined: 19.Jan.2007
Status: offline

Hi ,
am getting the same error with ISA 2006 insttalled on Win2k3-SP1 server

user will not be able to connect through the ISA after this.
what is the recommended value to set for the keys mentioned below ?

Source: Microsoft ISA Server Web Proxy
Name: ISA Memory Issue
Description: The Compression filter cannot handle a response because the allocated memory currently used for compression reached its limit.
The memory allocated for compression is specified by the following registry values under the HKLM\Software\Microsoft\RAT\Stingray\Debug\W3Filter key:
COMPRESS_MEMORY_ALLOC_MBYTES (by default, 256) and COMPRESS_MEMORY_POOL_BLOCKS (by default, 200)

any pointers will greatly help me ...thanks

uday

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Uday S

(in reply to jpevenhuis)

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RE: The Compression filter cannot handle a response bec... - 9.Feb.2007 6:00:10 AM

djherceg

Posts: 1
Joined: 9.Feb.2007
Status: offline

I am having exactly the same problem. We kind of solved it by restarting our ISA 2006 every midnight. Is Microsoft aware of this?

(in reply to jpevenhuis)

Post #: 3

RE: The Compression filter cannot handle a response bec... - 13.Feb.2007 9:33:37 PM

redparadox

Posts: 28
Joined: 31.Aug.2006
Status: offline

I got this error within just a few hours of rebuilding one of production inbound proxy servers with Windows 2003/SP1 + ISA 2006 Std. The server is used for inbound proxy access only. Users would see an HTTP 500 error message and the event ID mentioned above would be logged.

I temporarily worked around the problem by simply disabling HTTP compression from the ISA management console. The server has been running without any issues for the past week. Having a touch of OCD, I couldn't stand to leave it in this state. It has been suggested to me to perform the following steps.

1. Stop the firewall service and rename your cache file (dir1.cdat)
2. Apply the hot fix: http://support.microsoft.com/kb/928876
3. Apply the hot fix: http://support.microsoft.com/kb/918994
4. Set the TcpTimedWaitDelay
http://technet2.microsoft.com/WindowsServer/en/library/38b8bf76-b7d3-473c-84e8-e657c0c619d11033.mspx
5. Finally update the drivers for the Intel/PRO cards I have in the machine.

I believe the hot fixes are only available currently through Microsoft support channels.

I haven't applied these steps yet, so your mileage may vary. As always, make sure you have a backout plan.

(in reply to djherceg)

Post #: 4

RE: The Compression filter cannot handle a response bec... - 30.Mar.2007 9:41:26 AM

tinto

Posts: 225
Joined: 9.Sep.2004
From: Italy
Status: offline

quote:

ORIGINAL: redparadox
I got this error within just a few hours of rebuilding one of production inbound proxy servers with Windows 2003/SP1 + ISA 2006 Std. The server is used for inbound proxy access only.

same, and my ISA is, now, recieving a great traffic, because we are hosting a big news site

quote:

2. Apply the hot fix: http://support.microsoft.com/kb/928876

i have already applied the patch released in january, so my DLLs have a version numer greater than here indicated so they should be ok;

quote:

3. Apply the hot fix: http://support.microsoft.com/kb/918994

this should be applied applying the service pack 2, that i haven't still applied because I've heard about some minor iussues

quote:

4. Set the TcpTimedWaitDelay
http://technet2.microsoft.com/WindowsServer/en/library/38b8bf76-b7d3-473c-84e8-e657c0c619d11033.mspx

set... to which value?

quote:

I believe the hot fixes are only available currently through Microsoft support channels.

as said, if you run a Micorsoft Update you should get them all.
At the moment I have disabled compression, i think i will wait the time to install SP2 (if i'd do) to retry enabling it

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Tinto

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