Jrun.exe memory leak

Hi,
I had my brand new test server setup earlier this month with
everything clean installed. I'm having issue with jrun.exe memory
usage skyrocketing to 500mb+. jrun.exe also makes the sql queries
to respond slow. What i've been doing for past week is terminate
the process, and restart the server.
Event after restarting, sometimes it instantly goes back to
500mb+ usage. I'm testing farely small application on this server,
i dont think the application would be causing this issue.
I had the same problem before, thats why it lead me to get
new test server, but now event on brand new system, jrun to repeat
same issue.
Beside coldfusion, i have sql server 2008, which runs
perfectly normal throughout the week.
Does anyone know the fix?
Syed

Jrun's jvm memory usage is configurable in the jvm.config
file. It is most likely the default startup is defaulting to take
up a minimum of 500 MB. Different jvm's act differently and some
are better at memory management than others. This isn't necessarily
an indication of a memory leak, it's more the jvm's nature to act
in this manner. No matter what it's probably peaking around 1.5 GB
if I had to guess.
I would look for other areas when it comes to performance, if
it's a small application and the only thing running on the CF
server. Look for things like unintentional loops, returning large
record sets from SQL, large values in session variables. Also never
store client variables in the registry. It could also be if you
have large db tables, you may need some indexing in the database.

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I meant eight hundred megabytes to one gigabyte, of RAM, in
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Jrun.exe Memory Issue

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You can try reducing the max heap for the java in the
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MCP/MCSA/MCTS/MCITP
Did you read my whole post, or did you just misunderstand the part were I wrote:
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Windows Audio Device Graph Isolation [audiodg.exe] MEMORY LEAK - EATS OUT 60-85% of CPU

Hello,
I've updated, 2 days ago, from Win 8 to Win 8.1 Pro and this memory leak problem that has occurred to me previously in other Win versions has arrived again. Didn't upgrade from boot, just from the desktop. Cleaned up the previous Windows installations and all
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I maybe got a solution for this... (Worked for me)
I
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I've noticed strange behaviors from virtscrl.exe: after a few hours of using my W530, the process has over 1 million handles (shown in task manager) and my memory's Paged Pool shoots up to 4 - 5 GB (usually smaller than 1 GB). Any idea why? I'm using the latest version from the driver's page. Screenshots:
Link to image 1
Link to image 2
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Link to image 3
Moderator comment: Image(s) >50KB (or totaling >50KB) converted to link(s). Community Rules.
Solved!
Go to Solution.

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Memory leak in tagsrv.exe

I'm seeing a memory leak in tagsrv.exe on my laptop, where I use DSC
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Attached are some images of memory usage. Interesting, but the
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Attachments:
memory1.GIF ‏49 KB
memory2.GIF ‏49 KB

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Closing as question is answered in MDM forum.

Memory Leak in NK.exe

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Hi,
I have been observing memory leak for "Services.exe" process and which causes server hung issue. I am having server 2008 R2, hosting SQL server 2008 R2.
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Please click 'Mark as Answer' on the post that helped you.

Hi DamPee,
In addition, I would like to suggest you perform the following steps to check the issue.
Clear Printer Spooler Files and Restart the Spooler Service
=================================
1. Click Start, type "Services.msc" (without the quotation marks) in the Start Search box and press Enter.
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What’s the result?
Arthur Li - MSFT

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2008 R2 - Memory Leak from svchost.exe - Module "rpcrt4" is the culprit

Hi All
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Detailed module report(Memory)
Module details for rpcrt4
Module Name rpcrt4
Allocation Count 946941 allocation(s)
Allocation Size 1.76 GBytes
Module Information
Image Name: C:\Windows\System32\rpcrt4.dll Symbol Type: PDB
Base address: 0x00000003`00905a4d Time Stamp: Sat Nov 20 13:13:18 2010
Checksum: 0x00000000`00000000 Comments:
COM DLL: True Company Name: Microsoft Corporation
ISAPIExtension: False File Description: Remote Procedure Call Runtime
ISAPIFilter: False File Version: 6.1.7601.17514 (win7sp1_rtm.101119-1850)
Managed DLL: False Internal Name: rpcrt4.dll
VB DLL: False Legal Copyright: © Microsoft Corporation. All rights reserved.
Loaded Image Name: rpcrt4.dll Legal Trademarks:
Mapped Image Name: Original filename: rpcrt4.dll
Module name: rpcrt4 Private Build:
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I'm running 2008 R2 64bit with anywhere up to 80/100 simultaneous RDP connections at any one time.
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Ryan

Hi Ryan,
Please narrow it down to the specific service that is having the issue. That way you will know where to focus on.
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restart your server. For example, say you determined that the following services are running in the "problem" svchost.exe: AudioEndpointBuilder, Netman, TrkWks, UmRdpService, Uxsms. You would open an admin command prompt and enter the following
commands:
sc config AudioEndpointBuilder type= own
sc config Netman type= own
sc config TrkWks type= own
sc config UmRdpService type= own
sc config Uxsms type= own
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Thanks.
-TP

Possible Memory Leak in CF8

Alright - not sure what type of problem this is but it is a
problem. The scenario is this: I have an application that worked
fine in CF7 (in terms of allocating and releasing memory) - but
when I moved to 8 - my memory keeps growing and growing without
anything being released (so it seems). This is a gigantic pain
because everything works great in 8 except for memory management
issues - I have tried all sorts of JVM argument combinations (for
setting the garbage collection and heap sizes, GC intervals,
etc...) - I cannot get jrun.exe to quit growing to the point it has
to be restarted.
Does anyone know what could be doing this? I can't turn
memory monitor on or the app crawls - but for some reason the new
architecture seems to disregard garbage collection (or at least on
certain objects).
I just find it extremelly frustrating that CF7 seems to be
fine in terms of jrun.exe running fine with memory not going crazy
- but CF8 just doesn't want to play nicely.
Any help with this is greatly appreciated.
Thanks,
CM

Thanks for your help ke4pym - figured it out (and this might
help some others as well):
We have a 2 tier web app with a database server and an
application/web server - the database server is running
Intersystems' Cache 5.2 and we have CF8 connected via the 'OTHER'
selection in the datasource admin using a jdbc connection string
and the Cache driver that ships iwth Cache. Works good - there are
a couple benefits with doing this rather than using an ODBC
connection (which uses a system DSN on the server and limits our
connectivity to only queries - no stored procs or anything else -
so essentially - the onty thing we could do with the ODBC
connection is query the database).
So we figured out how to connect using the jdbc connection
and Cache driver which allowed us to then run stored proc's and
whatever else we wanted to do in Cache via stored procedure calls -
BUT - here is where the problem came up - for some reason - all the
connection references or query data that was being used NEVER WAS
RELEASED FROM MEMORY - it simply stayed there until we restarted
the CF app server and refreshed everything. Once we put it back to
the ODBC it works fine - doesn't use any memory for database calls
(the main problem was that we have an email job that generates 1000
or so reports for customers and emails them off - around 200 or so
- the server would crash with an 'outofmemory exception' which we
tracked down in the jre logs.
So not sure if this is a bug or if it is just an unstable way
of using these two technologies - but thank goodness we figured out
that reverting back to the ODBC fixed all memory leaks (or whatever
you want to call them). So take note anyone - IF YOU USE A
CONNECTION STRING TO CONNECT TO A DATABASE AND SEEM TO EXPERIENCE
MEMORY ISSUES WITH LARGE AMOUNTS OF INFORMATION BEING QUERIED FROM
THE DATABASE - TRY USING AN ODBC CONNECTION (via a system DSN
created in windows ODBC admin).
Last thing - where did you find the HF2 - I only see HF1 for
CF8 listed in the developer center - can you send a link please?
Thanks for your help again ke4pym,
CM

Jrun.exe memory leak

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