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

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MySQL keeps restarting due to running out of memory

how can we prevent this from happening? it generally causes down time of about 30 minutes, which is extremely disruptive for service...
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921 views

How do i enable memory overcommit on solaris?

on a solaris 8 server with a specific workload, how do i turn on memory overcommit (à la Linux) ? # Memory size: 65536 Megabytes sun[root] # vmstat 1 procs memory page disk ...
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Does it make sense to install online spare memory?

I'm using HP DL360p Generation 8. I need a pretty reliable server, so I'm using RAID 1 with a spare drive, and I also added an extra power supply. But should I install online spare memory? Or ...
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Linux x86_64 reports 3.2G of memory instead of 4G

I have an ASRock G31M-GS motherboard with 4GB memory installed, but when I query the memory size under CentOS 5.4 (x86_64) [root@localhost ~]# uname -a Linux localhost.localdomain 2.6.18-164.el5 #1 ...
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452 views

Linux page cache slows down IO on dual cpu server with 64GB ram

I have a massive problem with the linux page cache which slows down the IO. For instance if I copy a lvm partition with dd, linux cache the data in the buffers or caches (free –m). That is not the ...
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806 views

1GB VPS - Apache Worker MPM - FCGID - Max concurrent connections - RAM CAP

I have spent a week or two researching and setting up my server to run Apache with the Worker MPM and FCID. I am trying to optimize it to allow for the most concurrent connections possible. It has ...
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Windows Web Server 2008 R2 Max RAM 16 GB?

This is page: http://msdn.microsoft.com/en-us/library/aa366778%28v=vs.85%29.aspx I see: Windows Web Server 2008 R2 Limit on X64: 32 GB In my system display, I see: Only 16 GB are usable. Any ideas? ...
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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 ...
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883 views

Linux Huge Pages Usage Accounting

I have configured Huge Pages for use with Java and it appears to be working well although I have a question about the accounting in /proc/meminfo. To illustrate # grep HugePages /proc/meminfo ...
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RedHat Linux: server paging, sum of RES/RSS + buffers + cached < TOTAL. Who is using my memory?

We have a server with 8GB, running mysql, 4 java applications and a small postgres db. We're having some issues with the system paging when running some mysql queries, so in order to see what's going ...
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How to free PHP-FPM memory?

There are several discussions complaining high memory usage of PHP-FPM, without any practical approach to overcome. As I explored the problem with numerous tests, the problem is related to the age of ...
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324 views

IBM server RAM vs other server RAM [closed]

We're looking to upgrade the RAM in one of our IBM System X servers. I received a quote of $560 from IBM for 2x 4GB chips of RAM. I've looked at the exact same type of RAM (ECC PC2-5600 server RAM) ...
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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 ...
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How to create a RAM Drive (RAM Disk) in Windows 2008 R2?

There are lots of tools for creating RAM drives. None of them seem to work for windows 2008 R2. Does anyone know if this is possible and if so how. Does anyone know of a tool that does work? I've ...
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Multibit error encountered on Dell Server Memory

Dell OpenManage reported the following: Memory device status is critical Memory device location: DIMM_B2 Possible memory module event cause:Multi bit error encountered What does this mean? How bad ...
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1answer
967 views

Low-traffic WordPress website on Apache keeps crashing server [closed]

I have recently moved my low-moderate traffic (1000 UAUs, 5000 pageviews on a busy day) website from shared hosting to a Centos 6 64-bit VPS with Apache and cPanel running on 4 quad-core processor ...
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838 views

centos out of memory

I rent a CentOS service, and with no permission creat a swap, now I now I am slow open my site, slow access with putty. When I tried many times, finally see my root part with putty Here is a list of ...
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153 views

What does a jagged committed memory graph mean?

We've been attempting to debug load programs on our servers, and along the way we've been looking at some graphs, like this one: (The white spaces are when the server got so hosed we couldn't ...
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What are the advantages of registered memory?

I'm browsing for a few low-end servers for a startup and I'm a bit confused about the different memory types. The advantage of ECC is clear - single-bit error correction. When it comes to registered ...
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692 views

e2fsck aborts: memory allocation failed

I am trying to fix a 9 TB filesystem with e2fsck, however the scan always fails after about 10% or so with the following error: Error storing directory block information: ... Memory allocation failed ...
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Page table fast growth

Not long ago I've spotted very interesting tool RamMap. I found on several servers running our x32 software that PAGE TABLE grows very quickly – 1.2 GB per day (of 10GB all). Also NONPAGED POOL grows ...
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SQL Server 2005 on 64-bit, Memory > 3GB

Does AWE help on a 64-bit server? The option is still available. Does it do anything?
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100 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, ...
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204 views

CentOS only detecting 50% of ram on IBM Server

I have IBM server with 16 GB RAM installed. Initially it showed 16 GB with free | grep Mem | awk '{print $2}' but now it shows only 8116136 but it must show 16439208 When I do dmidecode ...
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Lots of unused memory on EL6 compared to EL5

On our el6 servers there is a quantity of unused memory while on el5 servers there was no such problem. We need to get more aggressive caching on el6 as it used to be in el5. Munin graphs on el6: ...
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419 views

e2fsck on a low-memory machine: can I get more out of scratch_files or swap?

I am running CentOS 6 on a 32-bit machine with 1 GB of RAM. I have a 1TB external HDD that I am trying to run e2fsck on. It runs for about an hour and a half and then fails with Error storing ...
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dell poweredge r210 II mix memory

I have Dell PowerEdge R210 II server with 4Gb of memory installed. And I also have 8Gb memory module. I replaced 4Gb with 8Gb – server is working ok. But mixing memory in different ways got error ...
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Centos server not using SWAP properly and getting OOM

Recently I've been having some serious memory issues with my server. Just the other day, my server became completely unresponsive, and oom-killer started killing services at random (httpd, php, etc). ...
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linux- out of free [duplicate]

Possible Duplicate: free memory in Linux I'm trying to determine if my server needs more memory. free -m total used free shared buffers cached Mem: ...
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922 views

Debian Squeeze and available memory (1GB absent)

here I've a dedicated server with 12GB RAM and running Debian Lenny x64. dmesg | grep Memory [ 0.004000] Memory: 11917152k/12259740k available (2279k kernel code, 333820k reserved, 1022k data, ...
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371 views

Optimization of Soft Page Faults

I am currently doing performance analysis on a server and I see an application is generating a large number of page faults/sec. After checking the page reads/sec it seems these are all soft page ...
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How do I populate my ProLiant DL320 G6 server with memory?

I have problem with a new HP ProLiant DL320 G6 server. From the beginning it had to less memory, and now I have ordered more memory two times. Now I am struggling to populate the server with these ...
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Server crashes when too much memory is allocated

my server crashes whenever one of my users is running a 'R' script (this script requires a large amount of memory). Below is the last top I saw: top - 11:32:39 up 20 min, 4 users, load average: ...
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High Sqlservr.exe Memory Usage

I have a problem with sqlservr.exe (version 2008). It use a more memory. I checked on windows taskbar manager, sqlservr.exe usage ( Mem usage - 8GB Ram). I dont know how can I fix it.Got the following ...
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Viewing SQL's cache RAM usage?

I hope this has a really simple solution, but I have a feeling it won't. I've not been able to find any information on this anywhere else, which isn't a good start! Basically we're running SQL Server ...
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HP ML150 G6 upgrading RAM/CPU beyond specs?

I am being told that some limits on some HP servers can be crossed. Do any of you have any experience with that? A ML150/G6 is limited to 48GB RAM but I have been talking to a German company that ...
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262 views

Why the system information message when accessing an Ubuntu server doesn't match free -m?

Each time I SSH into my AWS Ubuntu servers I see a system information message, showing load, memory usage and packages available to install, like this: Welcome to Ubuntu 12.04.3 LTS (GNU/Linux ...
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High load cause? [duplicate]

Possible Duplicate: what is my server high load cause (4 cores and 8 thread cpu) What is my high load cause? CPU,RAM or IO? 4 Core, 8 thread cpu top - 22:27:07 up 149 days, 5:26, 1 ...
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how to drop_caches in OpenVZ centos6 container

I have tried sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' sudo echo 3 > /proc/sys/vm/drop_caches echo 3 > /proc/sys/vm/drop_caches echo 3 | sudo tee /proc/sys/vm/drop_caches and a ...
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Unbelievable issue : a single apache process takes 4 GB of memory [duplicate]

That's an unbelievable issue but we have single apache process that takes 4 GB of memory ! And it doesn't happens always with the same URLs, it's unpredictable and we don't understand why it is ...
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389 views

High memory usage of WordPress hosted on DreamHost VPS

Recently I see very high memory usage on VPS servers hosting my blog at DreamHost. There is not traffic increase in the recent months, but the memory usage is pushed by 250 MB. I tried looking at most ...
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589 views

How to see what is causing failcnt on tcpsndbuf

I am seeing a failcnt on my tcpsndbuf by looking at the user beancounters. How am I able to see what is causing this failcnt? I am experiencing problems with my server and I think that it is as a ...
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Lots of Apache processes but low pageviews

I have a question that maybe you can help me to answer. When I execute ps -aux from 00:00 to 00:03 I get about 30-40 apache processes but visits in such period of time are only 2 (Google Analytics). ...
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754 views

Xen Kernel on Debian Squeeze making 1GB memory 'absent'

Possible Duplicate: Fresh Debian Squeeze (6) Installation - Very High Ram Usage We have a Dell Poweredge R210 server with 8GB of installed RAM. This is a fresh install of Debian Squeeze, ...
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Filesystem cache accessible via HTTP?

After searching the web for hours and couldn't find what I was looking for, I thought someone here might have an idea ;-) I'm looking for Linux a program that will cache in memory a designated ...
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What resource limit is Java encountering on my Solaris server?

I have a (sparc) Solaris 10 server with 16G of RAM. There are over 4G free. Memory: 16G phys mem, 4371M free mem, 8193M swap, 8193M free swap I am running a lot of java processes (I'm using the ...
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guide for max memory bandwidth AMD Opteron 61xx series

the new opteron have 4 mem channels per CPU. general guidelines for Intel Nehalem: one DIMM in each mem channel results in 1333 Mhz more than 1 DIMM in each channel = 1066Mhz more than 2 per ...
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Relative seek times for various types of storage media

Does anyone know the approximate time required to retrieve and modify a kilobyte of data for various types of storage media in a typical modern server? Specifically: RAM Hard disk SSD This would ...
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Servers / ram for social network- how many? [duplicate]

Possible Duplicate: Can you help me with my capacity planning? I am launching my social network soon and am looking into hosting. The question I am lost considering is: Do I need separate ...