The amount of memory required by a program or the system for a specific task.

learn more… | top users | synonyms

1
vote
0answers
25 views

RabbitMQ crash: Cannot allocate memory when enough is free

The problem: My RabbitMQ service crashes with Slogan: eheap_alloc: Cannot allocate 1581921408 bytes of memory (of type "heap", thread 1). despite the fact, that free -m reports more than 4GB ...
0
votes
2answers
29 views

Analyze memory and cpu peaks of docker container

I want to analyze the maximum memory (RAM + swap) usage and the maximum cpu utilization of a single docker container. I know that one can use docker stats and /sys/fs/cgroup/memory/docker//memory....
0
votes
0answers
12 views

accurately determining memory usage [duplicate]

I am not a sysadmin, so please bear with me. We have a CentOS machine with 500G of memory. We run MySQL and a few other things on it, and we want to try and maximize the OS buffers which will improve ...
1
vote
1answer
29 views

Why doesn't memory consumed by balloon driver not show up in top?

On an overallocated ESX host, guest is allocated 80GB RAM. The balloon driver kicked in at some point, and is consuming quite a bit of memory. # vmware-toolbox-cmd stat balloon 52381 MB Now guest-...
2
votes
1answer
31 views

Creating large file ties up memory after process is done

I'm using an Ubuntu 14.04LTS server (AWS EC2) to do a custom database dump but I'm getting a very odd memory behavior. I'm using PHP CLI script to loop through the custom dump query that outputs to a ...
2
votes
0answers
33 views

SQL Server without memory reservation completely hangs

We are currently experiencing failures on our SQL Server machines. It appears that once a server on the same (VMWare) host as our SQL Servers starts a maintenance procedure. The SQL Servers will ...
0
votes
1answer
38 views

Why is apache (httpd processes) using swap space?

Here is the output from top. I don't understand why the httpd processes are using swap space. top - 13:49:45 up 28 days, 2:11, 4 users, load average: 1.31, 1.32, 1.20 Tasks: 262 total, 1 running,...
1
vote
1answer
35 views

Estimate RAM necessary for a process on Linux

I am a user of a Linux-based computing cluster that runs a task queuing system PBSPro. PBSPro likes to know how much RAM should be available for a task to make sure it will execute correctly; for ...
0
votes
0answers
11 views

Linux “free” command gives different answer than AWS Memory Metric [duplicate]

When I run a "free -om" on our Linux server (hosted on Amazon), the total available is 7,483 MB and the used is 7,125 MB for a 95% usage. But the Amazon MemoryUtilization statistic shows 73%. Why the ...
0
votes
0answers
38 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 ...
0
votes
0answers
28 views

What's the Suitable Azure Tier Plan For This Web App Usage And Reads [duplicate]

I have an azure web app Used for web API (restful) purpose. I use Azure as the cloud for this mission. i want to know that what is the suitable plan tier to choose with this Usage as following: I ...
0
votes
1answer
19 views

Monit is reporting low memory use

Monit is reporting very low memory use that is not consistent with actual use. If I look at Monit, under System I see "5.7% [918.0 MB]" though the real scenario is very different; total ...
-2
votes
2answers
69 views

Java process stay in running state and consume CPU

I have a jar running in background on a Ubuntu server. In a certain moment, the application start consumming too much CPU (400%) and 4 child process stay in R state: N.B: the problem is ...
0
votes
0answers
31 views

IIS Websites running out of memory

I have a server that is hosted by the parent company as of recently. This server is running two websites. One is a memory hog, the other is much smaller in scale. We had a situation today where the ...
2
votes
1answer
51 views

Linux: process memory accounted to cached amount

I have very strange case of memory usage on our ubuntu server. One process (which is searchd from sphinxsearch) allocated almost all available memory, and its VSize, RSS and SHR are almost equal (...
1
vote
2answers
120 views

Will Linux/Ubuntu running in an LXC container understand cgroup memory limits?

I'm planning to rent a physical server and run MySQL inside an LXC container on that server. I'd like to control maximum memory usage for the MySQL instance using cgroup limits : lxc.cgroup.memory....
0
votes
0answers
177 views

Cannot allocate memory problems - update-notifier-common

I'm running a Ubuntu 14.04.3 server on a Digitalocean droplet with 1GB RAM. I'm getting weird memory allocation errors, even though I have plenty of memory available. I started noticing this from the ...
-1
votes
1answer
38 views

Predict: fork: Cannot allocate memory

Using many bash parallel processes: process1 & ... process30 & Doing multiple git operations within each process randomly will produce: fork: Cannot allocate memory The system is CentOS ...
0
votes
1answer
52 views

Stop numproc exceeding the limit

We are running magento on VPS, which is facing a Numproc issue. According to our hosting provider, our server is exceeding the limit of numproc "400" & memory usage is also high. Because of this ...
0
votes
1answer
30 views

Jira/Confluence hogging memory with lots of processes

We've been working with Jira and Confluence on a Debian 6 VPS for a while now. Everything is fine as far as their daily use is concerned. The issue we are encountering now is that occasionally, the ...
0
votes
1answer
73 views

RabbitMQ memory consumed by Erlang writers, and nothing is paged to disk

I have a case where the total memory used by RabbitMQ is 6.2 GB, and 6.1 GB of which are utilized by Erlang writers. However, I can not find this size paged anywhere on the hard disk. what happens if ...
1
vote
0answers
81 views

Nagios check_jstat

I'm trying to monitor java memory usage using nagios nrpe features. So I download and install check_jstat and install the plugin on the remote server. And when I ran it below is the result: OK: jstat ...
1
vote
1answer
16 views

Linux top in RES what does the 't' suffix stand for

When monitoring my system with top, I noticed that under RES some values have a 't' suffix, but I can't see any indication of what this means. PID USER PR NI VIRT RES SHR S %CPU %...
1
vote
1answer
141 views

Monitor java application memory inside Cloud Foundry

I have a Java application that I'm deploying inside a Cloud Foundry environment. I want to monitor the application's memory usage. Cloud Foundry provides the cf app command that produces output ...
0
votes
1answer
38 views

Azure App Service Memory Use Diagnostics

Our ASP.NET website hosted on Azure as an App Service is experience periodic huge memory spikes. In the portal I will see it hover around 1GB all day then spike up to 5GB over the course of an hour or ...
0
votes
1answer
101 views

high memory usage on amazon linux

I've observed high memory usage at amazon ec2 instance using amazon Linux. See attached image. Top 25 processes shows < 1GB of memory, but free -m says ~ 3GB is consumed. I've already visited ...
-3
votes
1answer
57 views

How can I close httpd open conncetion? [closed]

I have a lot of open connection of httpd and ram usage, how can i solve this?
0
votes
1answer
76 views

centos vps memory is too full

my ram is almost full without any process using it. maybe you think it's a duplicate question but unlike others my -/+ buffers/cache is used too. this is output of related commands: top - 00:27:38 ...
0
votes
1answer
39 views

MySql ignores memory settings

I'm using MySql community server 5.6 on Ubuntu 15.04, I have /etc/mysql/my.cnf (no other config files). I've made changes to it and restarted MySql. When I use such query SELECT @@key_buffer_size (...
0
votes
1answer
32 views

Is MySQL using up all the memory? [duplicate]

I need help with reading this output of free -m. This server has a total of 32 GB of ram but it shows 9383 used and 290 free. The rest seems to be in the buff/cache. I am running mysql on this server ...
3
votes
3answers
383 views

CentOS 7.1 - Reverting to Old Functionality of top and service

I recently installed a fresh CentOS 7.1 server. I'm noticing a few differences from CentOS 6.7, and I'm hoping there is a way to revert to an old view of certain things. For example: Question 1: ...
1
vote
0answers
51 views

XEN VPS wrong memory?

I ordered a VPS on XEN platform with 1 GB of memory. CentOS 6.6 uname -a Linux vps 2.6.32-504.23.4.el6.x86_64 #1 SMP Tue Jun 9 20:57:37 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I checked the ...
1
vote
0answers
41 views

Physical memory runs out after sql changes

We have an 2008 r2 server working for 5 years, its physical memory was always around 70% but after our last site code and SQL stored procedures and functions updates it got to 94-96% and all the pages ...
-2
votes
1answer
52 views

How can I reduce the Cache usage of MySQL and raise the free memory?

I currently have a virtual server with 12 GB of RAM and 8 CPU running many websites with Apache and MySQL. When looking in PhpMyAdmin monitor, I see the following resource usage graph: image -> ...
0
votes
3answers
208 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 ...
1
vote
1answer
55 views

tuneup application memory management

I have couple of systems 75% the memory used for buffer and the rest by applicaion. I have a monitoring tool alert me for high memory usage be cause the system used 90% aavailable memory, based on my ...
0
votes
0answers
70 views

Unable to start VM with more than 1388MB of memory in Hyper-V

I have a question regarding Hyper-V on Windows Server 2008 R2 (Standard). After installing and configuring Hyper-V via adding a role in the server manager, i am able to start VM only if they have ...
2
votes
0answers
154 views

How does docker stats output relate to top output?

I've got a process running in a Docker container on Linux, with a 2GByte memory limit. (The container is started with docker run --memory=2g.) Here is what top says about it after it's been running ...
2
votes
1answer
202 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 ...
5
votes
1answer
511 views

Hyper-V dynamic memory not correctly assigning more memory

So, I got an alert from our monitoring system that there's less than 15% memory free on a virtual machine. I log in to investigate, it turns out that the VM in question is a Hyper-V VM with Dynamic ...
2
votes
0answers
15 views

What is the value shown for memory graph in XenCenter?

I would like to ask question to people in this community about Xen Center. I use Xen 6.5 in production environment. However, I quite don't understand the value shown in memory graph of "Performance" ...
-1
votes
1answer
97 views

mySQL keeps crashing with a specific Wordpress theme enabled

nice people ;) I have a problem with my server after I setup a new theme on one of my wordpress sites. At first mySQL started to crash once in a while, then it became more and more often and now you ...
1
vote
1answer
50 views

Linux OOM-killer disabling woes

I have a Linux machine with no swap, which has vm.overcommit_memory=2 and vm.overcommit_ratio=100 set. However these settings seem to have no effect. Some newly-started processes which attempt to ...
4
votes
0answers
308 views

Node.js Server with PM2 Crashing with error ENOMEM - but no memory leak

I have an EC2 instance running a node.js server (Express based). After deploying in a new environment, my service had started crashing almost instantly with spawn ENOMEM Errors like this one: ...
2
votes
1answer
509 views

Avoiding swap on ElastiCache Redis

We have been having ongoing trouble with our ElastiCache Redis instance swapping. Amazon seems to have some crude internal monitoring in place which notices swap usage spikes and simply restarts the ...
3
votes
1answer
193 views

Windows Server 2012 R2 Hyper-V doesn't allow VM to use all RAM

I have a physical server with 12GB of Ram, with a system HDD of 250Gb (180Gb free), and a dedicated HDD to host the VMs of 1Tb (600+Gb free). This server was running Windows Server 2008 R2 as a host ...
1
vote
1answer
175 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 ...
1
vote
1answer
299 views

Are Application Pools Generally Larger In IIS 8.5 vs IIS 7.5?

We recently moved our websites from IIS 7.5 to IIS 8.5. We did not change any of the code in the websites The app pools are identical in configuration We are running ~70 sites on this ...
0
votes
1answer
84 views

Is / in memory? AWS/EC2 Ubuntu Server 14.04 LTS (HVM)

I've been investigating this for a while, and I'm really confused. I have an AWS/EC2 m3.medium instance running Ubuntu Server 14.04 LTS (HVM), SSD Volume Type - ami-d05e75b8. I ran into a problem ...
-1
votes
1answer
64 views

understanding web server memory usage [duplicate]

I have a PaaS hosting solution that sets up a wordpress cloud (DigitalOcean) server with wordpress, all managed by the hosting provider. I still have ssh access/ftp etc... I know that mysql runs on ...