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Questions tagged [memory-leak]

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Strategies for detecting daemon memory leaks

I have a system which sends an email to a user twice a day, confirming that a specific daemon is still running and doing something. This has historically run for over a year without a restart, but the ...
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JVM (lucee) Metaspace increases constantly

I have a lucee (ColdFusion) server in production. At first, we encountered OS memory exhaustion. We reduced the -Xmx2048m to half available memory and set -XX:MaxMetaspaceSize=1000m. After a while ...
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OpenVZ 7 memory leak

Looking for some assistance on a memory leak issue wherein the RAM consumption keeps gradually increasing day by day and within a span of 6 to 7 days, it reaches 100%. (I have to reboot then). Ram ...
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Memory Leak while using IIS Advanced Logging filters

I'm using IIS 8.5.9600.16384 with Advanced logging module 1.0 (2009-10-08). Adding the following filter to IIS advanced logging module causes memory leak of w3wp.exe. After a day, a few GB of RAM is ...
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How to fix ws and socket.io memory leak?

I have read that there is a memory leak occurring in both node.js websocket modules ws and socket.io. It has existed for years and am wondering how to fix it. It is mentioned in the following, to name ...
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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 ...
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DNS Client excessive memory usage Windows Server 2019

We have a number of identical Windows Server 2019 systems and are noticing that on one particular server the DNS Client service sometimes starts using excessive amounts of memory. So far we've not ...
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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 ...
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How to investigate TCP memory leak

We are running a medium size AWS EKS cluster (~120 kubelet nodes) running mostly Go services. The services deployed in the cluster are quite busy, handling millions of calls per hour. Each kubelet ...
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Memory usage doesn't add up: most of the RAM gone mysteriously

I have a Fedora 30 [5.6.13-100.fc30.x86_64] machine with 32GB of RAM onboard. Right after boot both free -h and htop indicate that 21-22GB is used: [ andriim@dev-r-vrt-007 ~/work ] $ free -h ...
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Monitoring swap usage of cgroup

I have a bunch of .NET Core applications running as systemd units. The host is running out of memory and slowly increasing swap usage to 100% so I suspect one or more of the services has a memory leak....
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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 ...
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1 answer
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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 ...
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Out of memory in Linux server killing my tomcat server

From last night I am getting below unexpected behaviour. Out of memory: Kill process 1740 (java) score 128 or sacrifice child Apr 8 19:14:20 ubuntu-s-4vcpu-8gb-sgp1-01 kernel: [17644.393549] Out of ...
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Microsoft SQL gradually increasing RAM consumption while using my website

I'm developing a website hosted on Apache 8.5 that connects to a Microsoft SQL server using Hybernate and the entity/dao/bean structure. When I start the server where MS SQL is located and open the ...
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IIS Application Pool taking too much memory

We have IIS running on two servers (IIS8 and 10), and encounter very high memory usage of our ASP.NET WebForms Applications lately, mostly accessed through aspx pages. What happens is that over time, ...
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50 instances of PHP killing my web server?

I was having an "out of memory" problem earlier. I just left top open and it froze on the screen right as it ran out of memory. i have a single user listed with about 50 instances of "php" listed. how ...
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how do i find a memory leak in Linux?

I have a digital ocean droplet. recently i combined it with another, and now the system will randomly (every couple days) completely max out on CPU usage (for a single user, not for the system) and it ...
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How to view memory usage of containers after reboot?

I have Docker containers running on my Ubuntu machine. Every so often (couple weeks) it becomes completely unresponsive. I suspect it's a memory leak issue with one of the containers. How can I view ...
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EC2, Tomcat, Amazon Linux and Out of memory

I use AWS Elastic Beanstalk to run my application on Tomcat 8.5 with Java 8 running on 64bit Amazon Linux. I use t3.small which according to specification has 2vCPI and 2.0 GB of memory. My ...
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Elastic Search using a lot of memory despite low heap size

We have configured Elastic Search JVM options /etc/elasticsearch/jvm.options to use a fixed heap size of -Xms512m -Xmx512m This can be confirmed as working when checking the Elastic Search process: ...
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1 answer
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Python server with Jupyter notebook running out of memory

I am quite new to using servers, but I recently ran into a bottle neck and had to do my computations on the cloud. After 2 weeks of using the server, there seems to be some memory issues. I use the ...
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1 answer
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AWS High Memory Usage. How to detect the cause?

I'm using Amazon EC2 instance t2.small. And the memory usage is always increasing up to > 90% usage. Memory usage > 90 % $ free -m total used free shared buffers ...
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1 vote
2 answers
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why tomcat7 is using so much RAM?

My Server has only .5GB free memory out of 65GB. total used free shared buffers cached Mem: 64375 63788 587 0 70 11503 -/+...
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Tomcat 7 server experiencing a sudden (order of magnitude) increase of the Young GC frequency after upgrade of Ubuntu and OpenJDK

What is the issue? After upgrading instances to Ubuntu 16.04 LTS and OpenJDK 8 the GC frequency can, after hours of normal operation, suddenly increase by orders of magnitude ending up using less ...
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1 vote
1 answer
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Debian 9, Apache 2, PHP7 - Memory leak

I got a problem with Apache and PHP7 on Debian... It is automatically configured by apt... my scripts are making a lot of calculating with a lot of memory used (limit - 512MB). But I noticed that ...
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Cannot explain memory occupancy in linux

I'm working on a debian 9.3, the free command return total used free shared buff/cache available Mem: 131940516 100433176 29189576 33940 ...
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2 answers
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nginx passenger - restart app periodically or when it reaches too high memory

I have a memory leak on one of my apps being served with nginx + passenger and a min/max_instances 2 setting. Memory keeps growing up as time passes by, and this can be a problem on a machine with ...
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JVM Heap usage charts interpretation

I'd like to ask for some tips how should I concern different JAVA apps memory usage line charts. Should I find any of them as "memory leak"? How my JVM profiling impacts on GC activity? Each of them ...
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Server appears to have little free memory despite apparent low memory usage in userspace

A Linux server I administer has been experiencing serious performance degradations as of late, becoming particularly apparent several weeks after each time it is rebooted. In particular Jenkins jobs ...
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1 answer
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408 errors from apache, "fork: cannot allocate memory" from dhclient and sshd

For the last three nights in a row, I've had an EC2 server start to give 408 errors in response to web requests. When I come in in the morning, I can't ssh in; I have to reboot using the management ...
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1 answer
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Sudden drop in free memory on EC2 instance at about 6 am daily

I have been noticing for a few months, pretty much since I set up a server on AWS, that my instance experiences a sudden drop in free memory at regular times, about 6am UTC, almost every day. It's a ...
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Does this memory leak issue?

Buffers+Cached+Free = 3,588,092 (3.4G) But I still can use 10G memory (not using the swap). Is this a memory leak issue? And after doing this, the leaked memory can be back? The (human-defined) free ...
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memory leak - RaCT driver tag

I'm having an issue with Nonpaged pool using 129GB of RAM on HP ProLiant DL380 Gen9 running Windows Server 2012 R2. I used Poolmon.exe to trace out that RaCT is using 127GB but I can't find any info ...
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Why Linux free memory is not just the 'free' of '-/+ buffers/cache' [duplicate]

I learned and always think that linux free memory is the "free" of "-/+ buffers/cache" You can get this knowledge from lots of website. Meaning of the buffers/cache line in the output of free http://...
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10 votes
2 answers
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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 ...
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High memory usage, but not clear where it goes

My system is a software network intercepter, which runs on a Ubuntu 14.04.4 LTS (GNU/Linux 3.16.0-71-generic x86_64). I have it deployed in several sites, yet a specific one gives me the following ...
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Wordpress tries to allocate Terabytes of memory

I am currently running Apache on windows and occasionally it will seemingly instantly spike and try to allocate anywhere from 10s of GB to hundreds of TB of memory. After this error log happens a few ...
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1 answer
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High CPU being caused by garbage collection in w3wp.exe [closed]

I am having a problem with High CPU happening on my my website in IIS8. This happens randomly and not very often but it does happen especially when the load is heavy on the site. The only way to ...
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Server full ram but not show which process is use much RAM

One of our Hadoop datanode with CentOS7 64 bit is using all of it's RAM, I tried to figure out which process is using so much RAM but couldn't. Please help me to check this please: System: CentOS 7 ...
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high memory usage 100% rss feed attack

I am getting a lot of traffic to my website in /feed here is the log Ip Address - - [10/Feb/2016:14:47:58 +0300] "GET /feed/ HTTP/1.1" 500 - "-" "Mozilla/5.0 (Linux; Android 4.4.2; SM-G7102 Build/...
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Socket.io w/ node.js + nginx +mysql + php5-fpm Memory Leak?

I have a Debian VPS running node.js socket.io server + nginx + mysql +php5-fpm and the socket server seems to freeze with no messages and no errors. I noticed that the memory usage grows over time but ...
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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 ...
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3 answers
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Idle AWS EC2 but high memory usage

I'm using Amazon EC2 instance C4.large, total 3.75G memory, running Amazon-Linux-2015-09-HVM The memory usage increases day by day, like there's a memory leak. Then I kill all my program and all ...
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1 vote
1 answer
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How to know where is the memory leak of apache2 server

I have an apache2 server, and recently it seems that there is memory leak. I use mod_wsgi to write server WEB service in Python. At first I think it's my python program that leak the memory. But after ...
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Possible DNS Server memory leak

I have a Windows Server 2012 R2 physical server running AD DS, DNS roles. Very frequently DNS Server process starts consuming a lot of memory. In Task Manager > Details > Analyze wait chain - I ...
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2 votes
1 answer
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Missing memory on ESXI 6.0

I have an ESXI 6.0 with 8GB Ram. For some reason I can only use 4.7GB for VMs. I tried using esxtop but didnt see anything using lots of RAM. Below are screenshots from vsphere. Can anyone help me to ...
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3 votes
3 answers
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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 ...
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Need advice on Apache 2.2.22 Win Server 2003, memory leak

I'm running Apache 2.2.22 on Windows Server 2003 I'm serving some tutorial videos on the webpage to some registered users. The webpage has up to 30 users at a time, I know this because of analytics. ...
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5 votes
1 answer
701 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 ...
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