Questions tagged [memory-leak]

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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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1answer
53 views

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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1k views

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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1answer
70 views

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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1answer
254 views

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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1answer
28 views

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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1answer
1k views

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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2answers
1k views

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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1answer
12k views

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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1answer
994 views

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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2answers
5k views

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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137 views

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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1answer
576 views

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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1answer
186 views

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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2answers
645 views

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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105 views

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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1answer
73 views

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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1answer
2k views

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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1answer
501 views

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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1answer
421 views

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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1answer
245 views

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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1answer
2k views

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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3k 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 ...
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504 views

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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114 views

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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1answer
2k views

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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1answer
542 views

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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92 views

My wordpress/MYSQL is consumming way too much memory, how do i act on it?

I have a Ubuntu server running apache + mysql + PHP +postgres + passenger Mysql is often crashing, putting wordpress out of service. I asked the question here : Wordpress + PHP+ apache +mysql, mysql ...
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1answer
387 views

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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298 views

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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1answer
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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3answers
5k views

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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1answer
196 views

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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1answer
5k views

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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1answer
820 views

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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3answers
4k 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 ...
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0answers
51 views

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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1answer
648 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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1answer
182 views

Does Opcache fix eAccelerator's and XCache's memory leak bugs?

Both XCache and eAccelerator have a memory leak bug which will leak memory if you include the same file tens of times in a loop, even though the code executed in the file does not use up any memory at ...
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1answer
1k views

RamMap shows millions of processes that Task manager doesn't

I have a server 2008 box with 32GB RAM on and i have been investigating why it runs out of memory every 150 ish days. Task manager shows that we are running at 99% memory usage but all the processes ...
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2answers
1k 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 ...
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1answer
2k 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 ...
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0answers
465 views

ManifoldCF keeps running out of memory

I am using ManifoldCF to help index documents to Solr. Solr is configured in Cloud-Mode, with one node/core and an external ZooKeeper (on the same machine as the one running Solr). ManifoldCF reads ...
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3answers
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 ...
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1answer
1k views

Tracking down a memory leak

I previously asked a question about a server that had a very high nonpaged pool memory utilization and someone explained how to use poolmon to track down the problem driver. I did this, but I'm not ...
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3answers
3k 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 ...
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1answer
901 views

Ubuntu 14.04 server - Out of memory (OOM killer) - what is causing my memory issue/leak?

I try to find the cause why my server gets out of memory every few weeks and calls the OOM killer. It seems to be that memory usage is stable for about 2 weeks, then going up gradually for 2 weeks. ...
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0answers
149 views

Xorg in an embedded system--leaking memory?

I'm working on an embedded system that runs a custom Linux platform and it appears that the Xorg process is leaking memory. According to top, Xorg's virtual memory grows until the system crashes. ...
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2answers
5k views

memory leak in nonpaged “file” tag

I have a Windows 2012 R2 std. server with a memory leak. Something tells me that the leak started after we installed Symantic Endpoint protection 12.1.5 - but I am not sure. I tried to disable ...
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2answers
85 views

Confirm a memory leak by tracing “free” and “cached” in top?

I'm trying to confirm that there is a memory leak on my Linux device while in idle state (there should be no continuous memory consumption). I'm not interested in identifying the process that is ...