Tagged Questions

Synonym for: RAM - Acronym for: Random Access Memory, a type of computer data storage.

learn more… | top users | synonyms (1)

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0answers
57 views

Linux can't detect all memory [on hold]

I have a server with four nodes.The total memory size is 512G. After installing CentOS 6.5,I found the total memory is only 260G. And here is the information in /proc/buddyinfo : Node 0, zone ...
3
votes
0answers
31 views

Slab usage extremely high?

On a Centos 7 server with 32GB RAM memory I am running a few programs namely MySQL, Apache2, PHP. Recently I wanted to verify the amount of ram left as I was planning on installing a few more ...
0
votes
1answer
32 views

How to handle Docker memory management?

Update: Rather than spinning up my resque worker through the docker command (to test), I instead killed all my containers with fig kill, added it to the fig configuration, and ran fig up. This worked ...
-4
votes
0answers
22 views

Google compute change machine type [closed]

We wanted to increase ram of instance as per many blog we have deleted the instance without disk and then create a fresh instance with previous disk and ipaddress. But after creation of new instance ...
0
votes
1answer
27 views

New Relic memory reporting

We're using New Relic to monitor a server and a PHP application. New Relic is reporting memory usage of 90%+, which aligns with top. However, the sum of memory used by the processes in New Relic ...
0
votes
0answers
17 views

Memory usage of Postgresql and play framework

I am running a play framework application and a Postgresql server on a VPS which has 2vCores and 2GB of RAM and I'm having memory issues. I limited my play application to 1024MB with the parameter : ...
0
votes
1answer
58 views

Run app only in swap [closed]

I've a very low priority level program who consume large of memory. I need to free RAM for other programs. My objective is to kill -STOP <pid> this process and ```kill -CONT when i need it. But ...
0
votes
0answers
39 views

Increased CPU usage and server response time

Over the past 10 days, I'm suddenly experiencing increased CPU usage on my website with CPU usage reaching 100% three times. During that time I'm unable to SSH to my website so I haven't been able to ...
1
vote
1answer
46 views

Redis eats up more and more memory

I am running Redis 2.8.17 on Ubuntu 14.04 and yesterday Redis started eating up all the memory until it was killed by OOM. I restarted it multiple times, restarted the server, flushed all the data, ...
3
votes
3answers
135 views

server's memory taken up almost to 8GB

Lately, our server face problem with the memory. Started from few weeks ago, our server was loading very slow. Accessing emails and websites were really take too long. Then we asked the server ...
0
votes
1answer
26 views

Is it possible to force a specific program to use virtual memory?

Let say I have 1GB RAM Ubuntu, I need to run both memcached and redis on the same machine The usage of memcached is quite heavy (e.g. 1K read per second) and redis is less heavy (but still 10 read ...
1
vote
1answer
19 views

Can I safely mix RAM (ECC) sizes in a server board?

I have a server (actually used as workstation) with a Supermicro X8DA6 motherboard, with 2 installed Intel X5650 processors. It uses ECC RAM. It currently has 6 Kingston KVR1333D3D8R9S/4GHB dimms ...
1
vote
1answer
41 views

HP proliant DL320 g5p Ram

I have 2 HP Poliant DL320 G5p servers that I am trying to do a ram upgrade on. They currently have 5 GB of DDR2-PC2 6400 non-registered, unbuffered and ECC. I am trying to install 8GB (4x2GB) and the ...
0
votes
1answer
37 views

OpenVZ: shmpages keep increasing

I have an OpenVZ VPS. However the shmpages always increases to the limit in one or two days. My RAM usage is low (233M without cache). I only run nginx, php-fpm, and mariadb on the VPS. I've asked my ...
7
votes
3answers
719 views

Why does the “free” command and “dmidecode” show different values for RAM?

I've got a CentOS 5.10 (32-bit) server running on VMWare. It's allocated 4 GB of RAM. If I run dmidecode -t 17 | grep Size | grep MB I see: Size: 4096 MB Yet when I run free, I see: ...
0
votes
0answers
24 views

Linux wont release memory after exec, system, passthru command from php (Imagemagick commad)

I´ve a problem with a process on my linux server: I´ve a Linux Server with Cent OS 6 and Imagemagick. When i´m running a php script with a loop of imagemagick commands... (convert, composite...) with ...
0
votes
1answer
35 views

How to know the real amount of RAM in a VPS

I've been told that a VPS's RAM can be manipulated (oversold) by VPS providers. I know I can always buy a VPS from a reputable company, but, really, how can one make sure the allocated memory is the ...
-1
votes
1answer
35 views

Memory on dedicated server is filled out [duplicate]

We are managing a dedicated server (WHM/cPanel) with 4-5(Magento & Woocommerce mostly) accounts in it, along with custom code that will connect those platforms with ERPs. This custom code works a ...
0
votes
2answers
70 views

Why does downloading a large file with wget seem to consume nearly all available RAM? [closed]

I am trying to download a file of 580MB with the following simple wget command: wget http://example.com/file.ext The server has 16 GB installed RAM of and during the entire download the memory ...
0
votes
0answers
18 views

Xen memory management

In real machine, I can reserve a certain of memory by editing grub to limit memory,which the machine can use, and then mapping the reserved memory using ioreamp. I can manage these memory and insert ...
1
vote
0answers
21 views

Mysql with low memory on development environment

How to set mysql to run on very low memory? (preferably under 100MB and max 250MB) Currently it's running for about 400mb. I can't turn off the innodb because production using innodb. Is there any ...
0
votes
1answer
48 views

Memory cache is full not sure what is using it and if it is normal [duplicate]

The situation is that amazon bots are download ~600k images off my server. My web app deployed on apache server is extremely slow probably because ram usage is 100% some statistics: ...
1
vote
1answer
31 views

Azure Memory Allocation (Windows VM) for Python?

I'm running a pretty intensive python script on a large Azure Windows VM. I'm using Enthought Canopy for my python environment. The VM has 56gb of ram available... however in the task manager python ...
3
votes
2answers
705 views

Is there a way to tell the runtime of a RAM module?

I'm planning on buying used RAM which was supposedly only used for a very short time. However, I'm afraid the seller might underestimate. Is there any way I can confirm the time for which the RAM ...
1
vote
2answers
109 views

Dell R710 RAM Upgrade - Making sure I get this right

I have a Dell R710 that's refurbished (so no warranty or support by Dell) and currently has 48 GB of RAM in it (12x4GB). According to the smbiosDump in ESXi, it looks like this: # smbiosDump | egrep ...
1
vote
0answers
46 views

Why is my server using swap even though there is lots of RAM available? [duplicate]

My server has 24 cores, 16 GB RAM, and 8 SSDs on raid 0 (I think). I've noticed it is now using a low of swap space, even though there is plenty of RAM available. load average: 2.70, 2.54, 2.50 Mem: ...
0
votes
1answer
32 views

Is there such a thing as unbuffered registered DIMM memory?

I thought the two (registered and buffered, and the same for the negations) are synonymous. Are there any ECC unbuffered but registered modules out there?
0
votes
0answers
24 views

How to profile how much memory my tomcat server needs?

I'm running a tomcat server on my own for the first time and I was shocked by how much memory Java apps need compared to apps in other languages. Since I am paying a web host, I want to determine how ...
0
votes
1answer
193 views

Is it possible to reduce NodeJS memory usage (e.g., Ghost blogging platform)

CPU [ 0.0%] Tasks: 15, 2 thr; 1 running Mem [|||| 14/256MB] Load average: 0.00 0.00 0.00 Swp [| 1/256MB] Uptime: 15 days, ...
-2
votes
1answer
47 views

Uncorrectable ECC memory error [closed]

I was running simulations on a virtual machine of Ubuntu on Windows 7 OS and nothing was wrong. I decided to wipe Windows 7 off, and install Linux (Ubuntu 14.04). I started getting this error after ...
0
votes
1answer
91 views

Hyper-V dynamic ram not working with Debian

I've a Windows Server 2012 R2 based Hyper-V host with Windows Server 2012 R2 guest VMs and also Debian 7.6 based VMs. The dynamic RAM is working on Windows guests fine. But on Linux its not and the VM ...
2
votes
1answer
67 views

Set default numa policy to “interleave” system wide

I know it is possible to set the numa mode to "interleave" (see NB below) for a specific process using numactrl --interleave, but I'd like to know if it is possible to make this the system wide ...
0
votes
2answers
520 views

APT FATAL -> Failed to fork

I saw a lot of questions regarding this, but mine seems a little different. Here's what I receive: /etc/cron.weekly/apt-xapian-index: FATAL -> Failed to fork. run-parts: ...
0
votes
2answers
56 views

Monitoring Memory Usage on a Machine that Uses MSMQ

Based on this thread, it seems that it's "normal" for the MSMQ process to take up an much memory as is available until it comes under memory pressure. It seems most monitoring tools base memory usage ...
0
votes
0answers
107 views

How do I increase the curr_connections limit using memcache?

I am using a server with Centos 6.5 64 bits Kernel 2.6.32 and 64 GB RAM and 12 threads cores, and I cannot get increase the current connections used in memcache. This is my STATS output: # echo ...
-2
votes
1answer
69 views

Can I Copy a File Without hitting the RAM?

I suspect that I have a bad stick of RAM in a Linux development server. I'm trying to copy an 80Gb file off of the server to an external hard drive. CRC of the copied file does not match that of the ...
3
votes
3answers
309 views

RAM hot-add HP Proliant - Esxi

I have to add some RAM to my HP Proliant DL385 g7 and I was wondering if I can hot-add the memory due to some mission critical VMs that I can't move because of lack of hardware. I use ESXi 5.5 as HV. ...
1
vote
2answers
326 views

Docker + Apache, how does memory usage work?

Let's say I have a docker host set up with 50 containers each running a site served by Apache. As I understand it each container will have an Apache instance running and typically each Apache ...
0
votes
1answer
101 views

Dell PowerEdge C1100 MRC failure DIMM replaced, new memory not recognized in previously failed slots

Dell PowerEdge C1100, BIOS Version DS993B22 as seen via BMC IPMI, all 18 memory slots are populated with 4 GB modules. The following memory errors occured: MRC Event: Memory sensor, MRC ...
1
vote
1answer
36 views

Can I trust windows 2012 regarding the amount of installed memory?

I am running Windows 2012 on a Intel Core i5-2467M with supposedly 12GB of RAM. I say supposedly because Intel website says this processor supports a maximum of 8 GB. Microsoft System window recognize ...
1
vote
2answers
126 views

order 4 allocation failure disaster

Some environment details first: Hardware: Intel Server Board S2600GZ 2 x Intel Xeon CPU E5-2620 64GB DDR3 RAM Intel RAID Controller RS2BL (LSI SAS2108) with 4TB LVM Volume made of SAS disks ...
0
votes
0answers
21 views

Rail's FileStore with Linux Disk Caching or RAMdisk?

I have a Ruby on Rails application that stores it's catched files on the filesystem (Rails file-system cache). I was thinking about changing to memcached Store, but a short test shows it isn't a big ...
2
votes
1answer
52 views

Where are the ECC memory error counters stored?

Where are the ECC memory error counters stored: on the DIMM itself, the motherboard, or the host's disk? I'm using memtest86+, but it seems that it doesn't recognize ECC on my system, so if ...
3
votes
3answers
167 views

Evaluating uncorrectable ECC errors and fallback methods

I run a server which has just experienced an error I've not encountered before. It emitted a few beeps, rebooted, and got stuck at the startup screen (the part where the bios shows its logo and begins ...
1
vote
3answers
52 views

Debug unstable Apache server under Debian

Since yesterday my Apache server that runs on a Debian machine runs very unstable. Sometiems my websites load and sometimes not. I think it has to do with the memory since my Apache log is full of ...
0
votes
1answer
36 views

IBM memory, whats wrong, bought wrong type?

I have this server IBM System x3250 M3 Intel(R) Xeon(R) CPU X3450 @ 2.67GHz (8 CPUs), ~2.7GHz 2 GB PC3-10600 ECC DDR3 SDRAM HDD 500 TB Hotplug Windows server 2008 this is screenshot the default ...
0
votes
1answer
23 views

Does enabling more IIS logging fields consume resources?

It seems that IIS7 doesn't enable the bytes sent and bytes received fields in its logs by default. I would like to enable them so I could watch bandwidth consumption of individual sites, but my ...
0
votes
3answers
285 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 ...
-2
votes
1answer
87 views

High load of RAM but low CPU

I've a dedicated problem.. When I make a load test with ~500 connections, CPU stay low (about 30%) but memory grow up fast ! And I have a 100% used RAM and 50% used SWAP.. An other dedicated with 2x ...
0
votes
1answer
80 views

Windows 2008 R2 Memory Management [closed]

How does Windows manage physical and virtual memory? As I understand it, once the system fully utilizes physical memory, it will engage virtual memory. How is virtual memory managed? If physical ...