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.

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Compiling libmemcached Fails on Centos

I am trying to compile libmemcached on Centos 6.4 with gcc 4.8.2. I've run configure which gives me: Configuration summary for libmemcached version 1.0.17 * Installation prefix: /usr/local ...
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1answer
194 views

Memcached is slowing down the website in VirtualBox [closed]

I noticed our web project (Drupal) runs slower when it's using memcached in the virtual box. The page load time is more the twice as fast without memcached. I haven't noticed any unnatural memcached ...
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2answers
228 views

how to install php5-memcached in linux?

I've installed memcached server using yum. My server os info - Linux version 3.8.4-x86_64-linode31 (maker@build) (gcc version 4.4.5 (Debian 4.4.5-8) ) #1 SMP Mon Mar 25 16:00:34 EDT 2013 But when ...
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2answers
371 views

nginx returning error 502 when get not exist key on memcached

i use nginx 1.2.3(php-fpm) php 5.4.7 pecl memcached 2.1.0 memcached 1.4.15 if memcached service stop or get a not found key,nginx return 502 error and in error_log: 2013/11/19 17:37:04 [error] ...
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1answer
387 views

How i can setup a nginx cache strategy that first try amazon s3, then memcache and do a fallback on miss?

i have a large site with lot of pages that almost never change, right now i am using two memcache servers (amazon elasticache), but this its really expensive. Thats why for this files that barely ...
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1answer
102 views

4 Magento Requests per second = 210 mbit memcache bandwith?

After searching serverfault for similar questions without success, these are my numbers for one magento instance, running on multiple servers: After varnish about 4 requests per second hit the ...
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1answer
122 views

New Relic Memcached plugin installation location - App server or memcached server(s)?

We have the New Relic PHP agent running on our 8 app servers. we have two memcached servers and would like to add the New Relic/ Meet Me Memcached plugin to grab memcached metrics. Should the ...
2
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3answers
972 views

Memcached - doesn't seem to be working

my local.xml <session_save><![CDATA[files]]></session_save> <cache> <backend>memcached</backend> <prefix>MAGE_</prefix> <memcached> ...
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1answer
392 views

Should I install memcached on my Level 3 VPS?

I have a Level 3 VPS Linux server from Hostgator that I pay $50/month for. I know nothing about servers, but I'm aware this isn't the cheapest around, but far from the most expensive. On the domain ...
0
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1answer
384 views

Memcached inconsistency in values for maxbytes and limit_maxbytes

I'm using Memcached on RHEL/CentOS 5/6 and found that memory size inconsistency between limit_maxbytes and maxbytes taken from "stats" and "stats settings" respectively. I have compiled ...
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1answer
833 views

Right way to configure memcache

I'm trying to change memcache memory size limit in my CentOS env. I've examined other questions and found out there SHOULD be a file, which is mostly under /etc/sysconfig/memcached and if not I should ...
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0answers
145 views

Memcache daemon error, how to restart it quickly

i have the memcached daemon failing with the following error: 2013-08-15 07:45:27 +02:00 --- error: Uncaught PHP Error: Memcache::set() [<a href='memcache.set'>memcache.set</a>]: Server ...
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1answer
208 views

Memcached ports and CSF

I've got a small / medium sized VPS powered by WHM and running a few personal websites alongside a Magento powered web-store. Not being a real expert when it comes to server configuration details I've ...
1
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1answer
167 views

Different memcached instance per user, with authentication

I am writing a script which will allow each and every cPanel user to run an instance of memcached on their own. The script at this point is starting the daemon for every user on a different port. ...
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3answers
4k views

Installing PHP 5.3 Pear on centos 5.8

I just created a VPS with 32 bit Centos 5.8 and installed php53 and a host of other php 5.3 packages. I would like to install memcached using yum but I get the following error Resolving Dependencies ...
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1answer
108 views

memcached number of threads showing more than what were set

I started memcached server using 8 threads. Then I checked threads using ps -eLf | grep memcached shantanu 2758 1 2758 0 10 11:17 ? 00:00:00 memcached -d -l 10.90.15.104 -p 11311 -t 8 ...
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1answer
54 views

Can I have nginx put stuff on memcached?

It is my understanding that nginx can query memcached for data that it serves, but you have to place them there using some other (homegrown) program. So the question is, can I have nginx fetch data ...
2
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3answers
1k views

Memcached status returning “memcached dead but pid file exists”

When I want to see the status of memcached I run service --status-all but I get this multiple times "memcached dead but pid file exists" when it lists memcached. It seems to me that this means ...
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2answers
680 views

How to find max connections used by memcached?

In our LAMP application we have increased the max connection value for memcached to very high to avoid error for max connection we were having. Now we want to set appropriate value to max connections ...
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0answers
100 views

Memcached dont start on boot

I've installed the memcached and configured /etc/init.d script. /etc/init.d/memcached: #!/bin/sh # # memcached Startup script for memcached processes # # chkconfig: - 90 10 # description: ...
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2answers
89 views

Can't get Memcached to use more than 300 MB for cache

I installed Memcached on a Debian 7 server with 32 GB of ram. In my /etc/memcached.conf file I have it set up to use up to 4 GB of ram: -m 4000 Yet, whenever I run 'top' I always see memcached using ...
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2answers
273 views

Can memcache invoke a script to reload itself after startup on Ubuntu?

Since memcache stores everything in ram, it will lose its store after a node recovers from failure. Does memcache offer a hook to invoke a script after it starts up? We want that script to do ...
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1answer
205 views

Memcached distribution

I have a question about memcached distribution across nodes. We have 20 memcached nodes with 200GB memcached on each. Our apps are PHP apps. $memcache->setOption(Memcached::OPT_DISTRIBUTION, ...
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1answer
161 views

nginx proxy_cache or Memcached

I currently use nginx's proxy_cache for file-based caching in front of three Django applications (Apache/mod_wsgi). For some locations/URLs, I disabled proxy_cache and used Memcached (per view) within ...
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1answer
367 views

Memcached in a cloud environment: dedicated server or localhosts?

I'm something of a rookie, so apologies if I'm missing something obvious since my research hasn't led me to much relating to our somewhat unique situation. I'm going to be transitioning a php app to ...
3
votes
1answer
964 views

Does a growing number of TIME_WAIT connections affect server performance?

I have 2 servers, both running RHEL 6, one for Apache 2.2 and one for memcached (memcached-1.4.4-3). I noticed an increase in the number of TIME_WAIT connections on the Apache server netstat -n | ...
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0answers
651 views

Stopping memcached: [FAILED]. Why?

My application seems to be having issues with memcached not stopping. I'm using php, and have specific keys expiring after every hour. However those keys & values are not repopulating anymore. ...
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4answers
4k views

Slow Memcached: Average 10ms memcached `get`

We're using Newrelic to measure our Python/Django application performance. Newrelic is reporting that across our system "Memcached" is taking an average of 12ms to respond to commands. Drilling down ...
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1answer
61 views

Memcached on MySQL Server? [closed]

I just installed memcache with yum on MySQL Server. However when I start the memcache daemon I see no changes in MySQL/Application performance. I think I still need to configure MySQL to work with ...
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votes
1answer
276 views

memcached calling wrong libevent

When I try to run memcached from shell I get: memcached: error while loading shared libraries: libevent-1.1a.so.1: cannot open shared object file: No such file or directory However, i've installed a ...
0
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1answer
608 views

Thread Safe php-pecl-memcache and php-pecl-mongo

I'm looking to switch a Fedora server running Apache from prefork to worker. Everything seems to be fine except the php libraries for Mongo and Memcache. Has anyone had any success getting these to ...
0
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1answer
457 views

how to uncompress memcached content via nginx?

I'm using memcached to store html content ready for nginx to display but I'm getting the compressed output in the browser. It works if I turn off compression in PHP but doubles the response time ...
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3answers
4k views

How to debug memcached “SERVER HAS FAILED AND IS DISABLED UNTIL TIMED RETRY” errors?

I have a two server memcached setup. When memcached write fails, I receive an email notification. About once per day "SERVER HAS FAILED AND IS DISABLED UNTIL TIMED RETRY" error comes and I have no ...
2
votes
1answer
4k views

How to store php sessions using memcached and unix socket

I am running Arch linux with systemd, nginx, and php with php-fpm. I am trying (and failing) to configure memcached to store sessions using a unix socket. I have memcached installed and active, ...
0
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1answer
71 views

AWS ElasticCache - Cross Site - Disaster Recovery

I'm using AWS ElasticCache (MemCached) and can see how instances can be created at different data centers/sites. (eg: singapore A or B) There is no AWS Automatic Replication of ElasticCache from ...
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1answer
1k views

upstream prematurely closed connection while reading response header from upstream, client

I'm using nginx and spawnf-cgi with apc and memcache enabled.I'm getting 502 bad gate way on browser and this error on error log. 2013/01/07 06:55:46 [error] 90799#0: *53 upstream prematurely closed ...
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1answer
121 views

Is there a benefit to managing programs with a process manager instead of with init.d?

I'm using Redis, Memcached, and Nginx, to be specific, and Supervisor as the process manager, but any general information is helpful as well. Each of the aforementioned programs when apt-get ...
4
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3answers
3k views

Yum install php-pecl-memcached - No package found (Have epel-release-6-8.noarch.rpm)

I believed I've downloaded and updated the EPEL rpm but I can't install php-pecl-memcached.. I'm very new to this, any help is appreciated. #rpm -Uvh epel-release-6-8.noarch.rpm warning: ...
0
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1answer
694 views

Can't get memcached to run on CentOS 5.8

so I want to install memcached on my CentOS 5.8 server. I followed this tutorial http://kb.liquidweb.com/install-memcached-on-centos-5/ The command netstat -ap | grep 11511 shows that memcached ...
2
votes
1answer
1k views

Multiple memcached bins on ubuntu 11.04

I just installed memcached on ubuntu 11.04 (which is my development server). During the install, the script arranged for memcached to be started automatically at boot. Great, just what I needed. ...
1
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1answer
77 views

Configuring memcached for a particular scenario

I have a web application which queries opentsdb server(which in backend using Hbase cluster) for the datapoints of different metrics and using dygraph javascript graphing library, I am plotting those ...
1
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1answer
228 views

Memcache Error? “Could not find specified socket in poll list.”

For some reason recently I've been getting this error in my apache error log on my server. We have a single instance of memcached running on our Mac OSX 10.7 server. (20014)Internal error: Unknown ...
1
vote
2answers
679 views

upgraded php to 5.3.19 and memcached stopped working

I have a server with centos 6.3 and cPanel After the upgrade from php 5.3.16 to php 5.3.19 my site stopped working. When I try to execute an index.php manually, I'm receiving the following error. ...
-1
votes
2answers
92 views

Memcached installation on Linux server [closed]

I tried to install memcached on linux server. After successful completion of all installation steps(configure, make and make install), when I try to start memcached services, nothing happens. What ...
0
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2answers
151 views

Can I use two machines to set up memcache server for a php web app?

I have a web server which hosts my PHP web app and my MySQL server. I would like to throw out one more machine there to use it for memcache/memcached. In order to use Memcache, should I have a ...
0
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1answer
173 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 ...
4
votes
1answer
543 views

Memcache/Elasticache holding many user passwords in memory instead of DB

I have two servers in AWS. One is a live production server (a multi site WordPress installation with hundreds of sites and about 5,000 users) and the other is a clone of prod that is being configured ...
-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
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2answers
89 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 ...
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0answers
133 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'] ...