Questions tagged [memory-leak]

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24 votes
2 answers
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How to limit the memory used by an application in IIS?

The IIS worker processes are taking lot of memory on our servers. I want to limit the memory each application can use. I am confused whether I should set a limit on Virtual Memory Limit, or Private ...
kishore's user avatar
  • 882
17 votes
4 answers
86k views

Something eats all memory (I suspect memory leak on some app). How to detect what?

I have server which runs liquidsoap+icecast bundle and simple website (httpd+mysqld). Nothing special. Visitors around 2000+ per day, with around 50 being online simultaneously on average. Server has ...
jayarjo's user avatar
  • 337
13 votes
4 answers
13k views

How to use kdump/crash to investigate an OOM issue?

The problem A server crashed after multiple "Out of memory" messages and I am trying to pinpoint the culprit. If it is in userland - which process. If it is in the kernel - which kernel module. ...
chutz's user avatar
  • 7,990
11 votes
2 answers
6k views

WmiPrvSE memory leak on Windows 2008 *R2*

I've seen references on Windows 2008 to WmiPrvSE leaks, but nothing about Windows 2008 R2. We're running R2 on top of Hyper-V (2008). We are also running NSClient++ for monitoring from opsview. Over ...
MichaelGG's user avatar
  • 1,739
10 votes
2 answers
6k views

Baffling Memory leak. What is using ~10GB of memory on this system?

After running for about 18 hours, this system is using ~10GB of memory, causing the OOM-killer to be triggered when we run our usual tasks: # free -h total used free ...
Mike Conigliaro's user avatar
9 votes
3 answers
1k views

Windows 2012 Core Extreme memory use on SVCHOST/Workstation service

We have approximately 200 servers, Hyper V, File Cluster, and IIS, that are all experiencing the same issue, an event occurs on the server through normal use that maxes out or near maxes out the RAM ...
Craig's user avatar
  • 585
8 votes
5 answers
18k views

Where's my memory?! Nginx + PHP-FPM front end webserver slows to a crawl

I'm not sure if I have a problem with a memory leak (as my hosting company suggests), or if we both need to read http://linuxatemyram.com. Maybe you clever people can help us out? This is a front-end ...
incredimike's user avatar
6 votes
4 answers
9k views

How to limit memory usage by application in linux?

I have a closed source software with some memory leaks problems. Is there a tool or solution to "sandboxe" processes in a fixed amount of memory without using "ulimit" (to generic, I need a per-...
edomaur's user avatar
  • 407
6 votes
1 answer
38k views

What is nonpaged pool?

I have a Server 2008 R2 that I maintain on a day-to-day basis. The server is good and operating fine but it keeps sending me event 2019 error logs. "The server was unable to allocate from the system ...
Karl's user avatar
  • 83
6 votes
3 answers
14k views

Loads of memory in "standby" on Windows Server 2008 R2

In our SharePoint farm, our Web Front End servers all have loads of memory in "standby" mode, meaning very little is available for our IIS worker process. We have 32 GB of RAM in each of the boxes, ...
Jaap's user avatar
  • 161
6 votes
1 answer
2k views

Process Managment memory-leak in Windows Server x64?

After clean install and boot of OS Windows x64 I launched cmd.exe (any other exe) and closed it. Then I launch rammap.exe (http://technet.microsoft.com/en-us/sysinternals/ff700229.aspx). On the 2nd ...
tormozit's user avatar
5 votes
1 answer
2k views

Is my Apache2 setup leaking memory?

Recently, I've noticed that my apache uses absurd amounts of memory on my Linode server (80MB more than it used to), and restarting apache2 seems to fix the issue. I run SVN over apache, as well as ...
Stefan Kendall's user avatar
5 votes
2 answers
2k views

Does my Centos server leak memory?

I'm getting some conflicting information regarding the memory use of a virtualized server. The most alarming information is this: Note that the server has only 4GB of RAM allocated, even though ...
aleksikallio's user avatar
5 votes
1 answer
8k views

How to debug Node + Socket.io CPU Issues

We are running a Node Socket.io server with Express 3. The server is monitored using Forever. The service is running well, but the CPU grows throughout the day, until it reaches 90%+ and then suddenly ...
SteveEdson's user avatar
  • 1,549
5 votes
2 answers
4k views

Too many invalid handles in System process

I have experienced increase of invalid handles in System process (Windows Server 2008R2 x64). The amount is approximately 1,000,000 per week. According to Process Explorer the handle type is file. ...
nkula's user avatar
  • 71
5 votes
2 answers
7k views

ASP.NET app eating memory. Application / Session objects the reason?

So we're stress testing an ASP.NET application developed by an external company. We're doing roughly 50 requests per second, and after about half an hour each of the 48 worker process (w3wp.exe) is up ...
Nilzor's user avatar
  • 185
4 votes
3 answers
15k views

Automatically Kill/Restart Process(es) When Memory is Critically Low

I have a Debian Wheezy VPS box where am running a couple of Django apps in production. Ideally, would have tried addressed my current memory footprint issues by optimizing the apps, adding more RAM or ...
JWL's user avatar
  • 185
4 votes
1 answer
7k views

IIS Memory management & thresholds with potential leaks

We're running some X64 Win Server 2012 webservers (So IIS 8). We're noticing that the free memory on the boxes is constantly sitting at 5-10% free. We actually run quite a lot of applications on ...
yoshiwaan's user avatar
  • 300
4 votes
2 answers
2k views

w3wp/asp.net High memory usage - Is this problematic?

We have a asp.net (.net 4.0) webapplication that is installed in several environments. In most environments, the memory usage is somewhere around 1GB. However, we have one environment where the memory ...
Lodewijk's user avatar
  • 151
4 votes
1 answer
4k views

Docker memory leak?

I'm running Docker 0.9.0 uname -a Linux 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux I have 40 containers running at once. Each container is fairly ...
Ryan Hewitt's user avatar
4 votes
3 answers
11k views

Underused Apache server raise MaxRequestWorkers reached: memory leak?

On an Ubuntu server with 1Gb of RAM, an Apache 2.4.7 server with default configuration started to occasionally stop responding to request. It's used for a personal cloud + other needs and a low ...
coolnodje's user avatar
  • 233
4 votes
2 answers
4k views

Too much memory consumed during TFS automated build

We're running TFS 2010 Standard Edition, and we've set up an automated build to run whenever someone checks in code. We run through all of the automated tests (built with MSTest) as part of the build. ...
Bernard Chen's user avatar
4 votes
1 answer
744 views

Server 2012 R2 Exchange 2013 Handle Leak

I have a DAG setup with Server 2012 R2 and Exchange 2013 running on three Servers plus another Server for a lagged copy. We appear to be having a handle leak on all of the Servers, it doesn't seem to ...
CharlesH's user avatar
  • 334
4 votes
1 answer
4k views

how to determine who is using the slabs?

Is there any way to figure out who or what is allocating size-256 slabs, like in the slabtop output below? I had to reboot a server yesterday that had 5G out of 8G RAM in size-256 slabs and was ...
Aleksandar Ivanisevic's user avatar
4 votes
2 answers
443 views

linux log memory hogging issue

We have a VPS server (it's using Virtuozzo). On a few occasions now, our VPS memory was fully used up and no new connections could be made to the server on SSH, SMTP, or POP. The only thing that works ...
mhost's user avatar
  • 1,229
4 votes
4 answers
4k views

lsass.exe memory leak on windows 2003 server

In the past month or so I noticed that lsass.exe has started to leak memory, getting to 500MB+ of ram in under a week after reboot. Before this I had never noticed it using any significant amount of ...
thelsdj's user avatar
  • 840
3 votes
3 answers
1k views

Allowed Memory Size Exhausted irregardless of amount, Memory leak?

I'm running a small Wordpress blog for my sister on a very common CentOS 5.11 with Apache 2 and PHP 5.3.3. Lately, we discovered while she tried to update or install anything using Wordpress own ...
Lars's user avatar
  • 578
3 votes
2 answers
816 views

Memory leak issue in Centos5

I recently just bought a dedicated server as an upgrade for a small community site from the shared hosting we have had for the last 3 years. I had installed httpd, php and mysql (the usuals for a ...
mNova's user avatar
  • 33
3 votes
3 answers
17k views

Is poolmon or an Equivalent Tool Available for Windows Server 2008?

Is there a version of poolmon available for Windows Server 2008 64-bit? This KB article says it only applies to versions up to Server 2003. Is this tool (or something equivalent) available for Server ...
Adam Holmberg's user avatar
3 votes
1 answer
964 views

What would cause a XenServer 7.2 Windows 2019 VM to not release Driver Locked Memory back to the OS?

Problem: We have a XenServer 7.2 environment running Windows Server 2019 terminal servers. Although seemingly random, we see the VM climb to a whopping 32GB of used memory and the users slow to a ...
Aaron's user avatar
  • 311
3 votes
2 answers
8k views

Apache 2.2 eventually using all memory (worker mpm)

I'm tuning up a Apache 2.2 server (it's shared with MySQL + Courier + Mongo + Postgre). The server is bare metal (no virtualizataion) with 2 quad-core Xeon (total 16 core) and 12GB ECC RAM (upgrading ...
Daniel Costa's user avatar
3 votes
1 answer
3k views

How to measure a driver's memory consumption in Windows?

I've heard an unchecked gossip that Realtek drivers on Windows 2008 suffer from memory leakage. My computer with this network card and OS suffers exactly from this symptom - high memory consumption. ...
user avatar
3 votes
3 answers
5k views

Diagnosing "File" tag memory leak in poolmon.exe on 2008R1SP2

We have a memory leak plaguing many of our 2008R1SP2 file servers. The "File" non paged memory tag in poolmon.exe will leak until shared folders are no longer available, and then RDP goes down with it ...
kiwisan's user avatar
  • 183
3 votes
1 answer
3k views

MySQL memory usage - Periodically need to run FLUSH TABLES or memory usage keeps growing with large-pages turned on

After switching our rather memory + physical core rich database server to large-pages, we have noticed a small issue. The memory usage almost looks like there is some sort of memory leak. But ...
anonymous-one's user avatar
3 votes
3 answers
4k views

Finding Memory Leak on Linux

I'm going crazy trying to find a memory leak on one of our main boxes. It runs CentOS, kernel 2.6.18, x86-64. The box (actually VM on Xen) has been running great with no problems since it was created ...
MBCook's user avatar
  • 165
3 votes
1 answer
3k views

Windows server 2008 R2 High Memory Utilization

We are running a VM with Windows server 2008 R2, we see the physical memory utilization to be close to 100% always. Machine is running crystal reports server. Task manager counts to 99% memory ...
Madan's user avatar
  • 33
3 votes
1 answer
543 views

centos + php leak memory, but where?

I have a big php cronjob that run every 20minutes. After each execution the RAM memory used by the virtual server increase and not properly free once the script is terminated! But why? The memory isn'...
Andrea Sica's user avatar
3 votes
0 answers
586 views

Running out of memory with plenty of memory and swap

I have a Debian-based system that is running out of memory but there appears to be plenty of free memory. The box will run for about 6-12 days and then it will begin killing anything allocating memory ...
Dom G's user avatar
  • 31
3 votes
0 answers
741 views

What is using (kernel) memory?

I know this kind of questions about memory usage have been asked several times, but unfortunately none seem to answer our current problem. We are currently running an AWS EC2 instance with the ...
mitsos1os's user avatar
  • 131
3 votes
1 answer
2k views

How can I determine the cause of an IIS7 memory leak?

I have an IIS7 website which is live right now. If I watch memory usage in the remote server its usually about 300-400mb however sometimes randomly it goes up to 10gb within 5-10 seconds. I have tried ...
Cenk Erdem's user avatar
2 votes
1 answer
2k views

How To find the memory leak?

Im preparing a web-server and have already installed Wordpress on it. Everything worked fine. But instantly, the memory usage went up. Now I only have 300MB of memory free. To check the problem, I ...
THpubs's user avatar
  • 1,775
2 votes
3 answers
6k views

80% memory utilization on server- is this just caching?

Memory utilization is very high on this 2008 R2 server, but I think it might just be caching RAM- performance on the server is fine and CPU utilization is very low. It is running DFSR which I believe ...
red888's user avatar
  • 4,243
2 votes
2 answers
2k views

Tracking Individual Processes in Windows Server 2008, Is It Possible?

I'm hoping we can get a solution together on this. I'm looking to try and narrow down what's happening on a windows server 2008 box that's causing us to have to reboot every 2 weeks. Resource ...
Jason's user avatar
  • 383
2 votes
4 answers
8k views

DNSCache excesive memory usage Windows Server 2008 R2

We are having an issue with the dnscache service where its memory usage is becoming excessive (~6GB) after a week or two. Restarting the service frees this memory but performing ipconfig /flushdns ...
Mike Taylor's user avatar
2 votes
1 answer
13k views

Memory Leak in Tomcat

I'm using Tomcat 6.0, JDK 1.6 for a web app. It's dying frequently requiring manual reboots, and the log file shows this: Notice: Maximum number of threads (200) created for connector with address ...
user avatar
2 votes
1 answer
2k views

GCE stackdriver logging agent (fluentd) memory leak with COS

I have a VM on GCE where I run a custom Docker image. I installed it on COS (cos-stable-74-11895-125-0) to a g1-small (1 vCPU, 1.7 GB memory) instance. It is an Elasticsearch with locked memory ...
Krisztián Velez's user avatar
2 votes
1 answer
2k views

Firefox instance on Remote Desktop Server (2012) takes up to 30gb RAM / user

I just set up 5 Windows Server 2012 R2 Standard servers running Remote Desktop Services in a Session Collection. The latest server I put on has 96GB of RAM and hosts 80 - 160 users. All users are ...
dthree's user avatar
  • 367
2 votes
1 answer
1k views

Our RAM usage is high, including -/+ buffer/cache, but top has no answers

We are running CentOS 6 with a PHP web application. After we pushed a new version live it seems we have a memory issue, however top does not show any high usage instances. I have looked around and ...
Matt Votsikas McLean's user avatar
2 votes
1 answer
696 views

Apache with mod_perl eating memory when idle

An Apache webserver running a mod_perl application is exposing abnormal memory usage - after the "day load" ceases, the system's memory is being exhausted by the Apache processes and oom_killer is ...
the-wabbit's user avatar
2 votes
2 answers
1k views

Any known SQL Server 2008 Management Studio memory leak issues?

I'm not sure whether this question belongs here or to StackOverflow. I'm attempting here, since my question is in regards of memory leaks and management stuff more than programming. I have a SQL ...
Will Marcouiller's user avatar