Memcached is an in-memory key-value store for small chunks of arbitrary data (strings, objects). It is commonly used as a cache to speed access to frequently used data.

learn more… | top users | synonyms

0
votes
1answer
191 views

Adding varnish and memcached to an running single server web site

Current set up; I have a single dedicated server running a web site (it's a lamp stack forum) OS : CentOS CPU : Dual 3.2Ghz Quad-core Xeons RAM : 40GBs (10x4GB DIMMs) Storage : Software RAID1 with ...
1
vote
2answers
2k views

Configuring SASL support in libmemcached

I'm trying to build libmemcached with SASL support on OS X Mountain Lion. I have built memcached (1.4.15) with SASL support: $ memcached -S -vv Initialized SASL. slab class 1: chunk ...
-1
votes
1answer
1k views

How to check what user is running memcached? [closed]

How to check what user is running memcached? I read that running it as root is a bad idea - I installed it while logged in as root. How can I check what owner owns that process? thanks
0
votes
2answers
92 views

Memcached - i installed it on centOS and have it running. Will it auto run when i reboot?

I did this: sudo yum install memcached then sudo pecl install memcache then I restarted memcache (which actually only started it) with this: sudo /sbin/service memcached restart i have ...
1
vote
0answers
142 views

Is memcache impacting my performence negatively?

I am using pressflow 6 and NewRelic seems to suggest that memcache is infact hurting performance as shown below : My settings.php file : # Varnish reverse proxy on localhost $conf['reverse_proxy'] ...
1
vote
0answers
225 views

windows 2003 server - php_memcache.dll for PHP version 5.3?

(I posted this in stack overflow about 15 hours ago - but I was told that stack overflow >was not the right forum by the admins for this question, so I'm hoping that this is the >correct forum.) ...
10
votes
5answers
19k views

Netcat (nc) traditional package for RHEL 6.x?

I'm trying to use the Percona Apache Monitoring [Cacti] Template for Memcached. They do indeed warn that you can't use the openbsd version of the package and provide a solution for Ubuntu/Debian ...
1
vote
3answers
3k views

Installing PHP PECL memcached extension on CentOS 5.6

I would like to setup memcached on my server so that I can learn how to use it. It is my understanding that the basic requirements to use it with PHP are: PHP memcached PHP PECL memcached library ...
0
votes
1answer
668 views

500 Internal Server Error when setting up Apache on Ubuntu+Django

I tried with Apache on ubuntu 9.04 and get the same error: Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact ...
1
vote
1answer
801 views

Nginx cache reverse proxy: how to keep app server alive during the 5 second window when cache expires?

I have an nginx server sitting in front of apache running django. Most of my site is static content: http://www.grovemade.com/ My app server can handle the pieces that needs to be dynamic just fine ...
1
vote
1answer
605 views

Memcached session manager in Azure: Connection gets forcibly closed

I am using Memcached Session Manager to handle Tomcat sessions in non-sticky mode. My deployment in Azure consists of a Worker Role with two instances which connect to an Azure VM running my Memcached ...
0
votes
1answer
366 views

Monitoring memcached with plink

I need a telnet client that can take commands from a file or stdin so I can do some quick-and-dirty automatic monitoring of memcached. I thought plink would be good for this, but it seems to be doing ...
2
votes
1answer
352 views

How to optimally configure memcache running on 16 cores 144G ram server?

Memcache is the only important app running on the server Server has 16 cores and 144G RAM Memcache is given 135G Memcache runs at 32 threads Gigabit network, test shows at least 300Mbit/s ...
0
votes
1answer
335 views

nginx return corrupted data from memcached

On my web site i've made data caching with memcached. It stores fully generated html pages. Next step was to get this data from memcached by nginx and send back to user w\o starting apache process. ...
2
votes
0answers
125 views

Port server moxi on node X exited with status Y on Couchbase 1.8.1

I'm getting this error on live servers Win Server 2003 32 bit & 2008 64 bit. Port server moxi on node 'ns_1@192.168.243.12' exited with status 3. Restarting. Messages: 2012-09-10 17:13:21: ...
63
votes
10answers
52k views

memcache vs memcached?

I want to use memcached http://www.danga.com/memcached/ I have installed it through yum install memcached But now I need to connect to PHP, and there is an extension named memcache and one named ...
2
votes
1answer
539 views

is anyway to use memcached with nginx on a post request?

2.1, i am also using the amazon elastic cache service (its a memcached server) Nginx has a clever feature that uses memcached for common get request, but if is a post request dont use memcached, is ...
4
votes
4answers
2k views

Recommended way to pre-warm memcached?

I am currently testing memcached on a system that will be rebooted once a week, and would therefore like to pre-warm memcached after the reboot. Wondering if anyone has a sample script they have ...
0
votes
3answers
140 views

How do I see how quickly items are dropping out of memcache?

Is there a good way to monitor how quickly items are dropping out of memcache?
1
vote
2answers
8k views

Memcached Debuging/Server Logs Monitor the Memcached Servers?

I have chat engine which is based on the Memcached variables, putting them into arrays and reading them in other end via jquery, which works fine 95% of the times, however when the server load is ...
1
vote
1answer
335 views

Why should I use a custom built memcached instead of Apple's Xcode version? [closed]

Memcached seems to be preinstalled with Xcode on OS X, according to Apple's documentation. To make sure I'm not hallucinating, I checked Apple's developer tools documentation. Yes, memcached is ...
1
vote
1answer
696 views

Response headers in Memcached+Nginx

Is there any way to cache response headers along with the response body in Memcached for use with Nginx?
0
votes
1answer
879 views

Is there something like phpMyAdmin for Memcached?

Is there any tool to see the keys/values stored in my memcached instance? I've found simple scripts like this http://snipt.org/xtP, but I get only the keys. Thanks in advance
-2
votes
3answers
478 views

Does mysql query cache have to be off to use memcached? [closed]

How do you know if memcached is being used? Server has mysql query cache on and I believe it also has memcahced installed, but how do I know if memcached is being used? Thanks!
1
vote
2answers
3k views

Rails app complaining can't connect to memcached but I'm pretty sure it's running

All was well, then I rebooted the server. Right now: $ ps aux | grep memcache 1000 27168 0.0 0.0 121972 1056 pts/0 Sl 15:18 0:00 memcached -m 64 -p 11211 -u nobody -l 127.0.0.1 1000 ...
1
vote
0answers
379 views

repcached broken sync - memcached high avalaibility

I have been using repcached (memcached-1.2.8-repcached-2.2)to store php sessions in order to have a highly available memcached. Everything runs perfect, I can restart a daemon without losing sessions. ...
1
vote
2answers
4k views

Memcached: can connect but impossible to set value

I installed memcached on Debian squeeze using the package memcached. The memcached instance starts with 384 MB. Then I try to connect: jcisio@cecile:~$ telnet 127.0.0.1 11211 Trying 127.0.0.1... ...
1
vote
1answer
837 views

memcached session handler in php.ini

I have installed memcached and the below code in php.ini works: session.save_handler = memcache session.save_path = "tcp://localhost:11211" but when i try to use the memcached handler.. this is ...
1
vote
1answer
133 views

Memcached - Single parent config, multiple child configs

I am setting up a memcached server in production, and would like the ability to switch between various memory sizes simply by changing out a symlink from one config to another, however I do not want ...
0
votes
1answer
459 views

Memcached clustered alternative

I'm looking to replace memcached. We have a LOT of traffic to our central memcached node which I'd like to split. There's only so much trunking networks I can do. My general idea is to install a ...
0
votes
1answer
755 views

Connect to memcached using PHP on Windows

I have a memcached server (on AWS ElastiCache) and need to connect to it using PHP on Windows (IIS not WAMP). Is this possible? I have found php_memcache.dll but this doesn't appear to work with ...
0
votes
1answer
2k views

ifconfig shows Interrupt:21 Memory:f7fe0000-f8000000

Can some one tell me what does this mean: Interrupt:21 Memory:f7fe0000-f8000000 This is showing in output of ifconfig. The issue is i have a service (memcache) which is not responding on the ...
-1
votes
1answer
583 views

Nginx , Apache , Mysql , Memcache with server 4G ram. How optimize to enought memory?

i have 1 dedicated server with Nginx proxy for Apache. Memcache, mysql, 4G Ram. These day, my visitor on my site wasn't increased, but my server get overload always in some specified time. (9AM - ...
6
votes
3answers
350 views

Memcached Lagging

Let me preface this by saying that this is a followup question to this topic. That was "solved" by switching from Solaris (SmartOS) to Ubuntu for the memcached server. Now we've multiplied load by ...
1
vote
3answers
1k views

What would cause Memcached to Hang for 2+ seconds?

I'm going nuts trying to scale memcached. From their site: Memcached operations are almost all O(1). Connecting to it and issuing a get or stat command should never lag. If connecting lags, you ...
3
votes
2answers
4k views

PHP on several servers with session-sharing

there's certanly other threads about this, but I have one more question. We are about to scale the website at work to have more than one server. And we need to share the sessions between the servers. ...
2
votes
1answer
163 views

Memcached memory consumption?

Server info: cPanel / 4GB The conf file as below: #Memory a user -m 128 # default port -p 11211 # user to run daemon nobody/apache/www-data -u nobody # only listen locally -l 127.0.0.1 Does it ...
4
votes
2answers
2k views

Are there any drawbacks to running memcached on a Unix domain socket instead of the network (assuming one server)?

I’m setting up a Django website to use memcached to cache its pages. (The content of each page won’t change very often at all, so I’m hoping that most of the site will be served from memcached most ...
1
vote
1answer
622 views

Nginx, PHP-FPM and Memcached

I have Wordpress installation running on two web servers powered by Nginx. I configured Memcached on both servers and I'm using W3 total cache plugin for Memcached: What's the recommended solution ...
3
votes
1answer
291 views

Does a RewriteCond that checks for the existence of a file cause high IO latency?

I am setting up an apache configuration to check for the existence of a file. If the file exists, then the server will redirect to a maintenance page. If not, the application will get served up ...
1
vote
1answer
126 views

MediaWiki Multi Site + Memcached

I have multiple mediawiki installations, and I'm wondering if it's safe to allow them to all use the same memcached server. Are there any "gotchas" involved?
2
votes
1answer
207 views

difference between slab, page and chunk in memcached

what is the difference between slab, page and chunk in memcached? If we set -m 128, then how many slab, page, chunk we have? What is the benefit of slab?
1
vote
1answer
211 views

Tips setting up nginx as proxy for php and node frameworks

We have a current, soon-to-be legacy PHP app installed in production, served with apache. Working fine. Currently trying to add in new Node.js alpha stack, which we're planning to install alongside ...
2
votes
0answers
310 views

Enyim Memcached Client Caching same item on multiple servers

We have a memecached cluster of 5 servers. When we reviewed the cache keys it shows that the same item is showing up across 4-5 servers in the cluster. As I understand it, Enyim's default key hash ...
0
votes
1answer
362 views

Memcached logrotate file not being installed. Bug with memcached 1.4.2?

My memcached logs are getting huge (in excess of 5GB). This isn't a huge problem in itself. I can easily remove them. I've sourced the problem to the memcached 1.4.2 package not installing a ...
0
votes
1answer
102 views

Server performance worsened after a hardware upgrade: how should I reconfigure the server? [closed]

I'm running a site on an Ubuntu/Apache/Django/PostgreSQL stack. We upgraded our server recently from 1 processor with 2 Gb total RAM (with 0.5 Gb of that RAM assigned to memcached) to a new server ...
1
vote
1answer
330 views

how can I effect DNS Caching on PHP/Memcache application

In a very high loaded Ubuntu/PHP web server I found that the PHP line: $memcache->connect("int-aws_ec2.memcached.myapp.net",11211); sometimes takes ~5 secs. Replacing the url with the ip address ...
0
votes
1answer
203 views

Can a slow database cause a web app to hold up a memcache connection?

I have a php application that uses memcache and a back-end database At times we see high "current connections" in memcache and can't determine why. Why php "misses" from memcache and needs to go ...
4
votes
1answer
499 views

How does php know what memcached node to look for its data in?

I am new to the world of Memcached clusters If I have a php web application that is using memcache - how does it does its hash and decide what node to check for a particular value to avoid having to ...
1
vote
1answer
1k views

Optimizing Web Server(apache2+nginx+memcached+eaccelerator) for high-loaded heavy application

I have a server with (Apache2 + nginx as reverse proxy, memcached cache and eaccelerator). The application is Magento - it is very heavy, due to high modularity and a lot of php files(5000-10000+). ...