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

2
votes
1answer
482 views

PHP Session Storage in Fault Tolerant Memcached Pool

I recently had the opportunity to move a web application from using a Nginx proxy "loadbalancer" to an F5 loadbalancer. Unfortunately during that migration it became clear that the memcached session ...
1
vote
1answer
41 views

Uneven load distribution on an elasticache cluster

Amazon elasticache cluster looks to be a really good choice for auto-scaling but it seems the load distribution is not equal among the nodes. Both memory and CPU wise the node 1 seems to take almost ...
1
vote
1answer
60 views

Memcached Pool - Outtage causes increased lag in response time

I have multiple cache servers which are added to a virtual pool at the PHP layer via the Memcached::addServers() api. During fault tolerance testing I noticed that taking one of the memcached servers ...
1
vote
1answer
190 views

memcache and memcached session not persisting

so I am having a problem with sessions persisting in an application, that is using the memcached php driver, while another existing application is using the memcache driver. On the server, I see both ...
1
vote
1answer
186 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. ...
1
vote
1answer
125 views

Should we increase local port range limit on busy memcached servers

nixcraft has a tutorial on configuring memcached server(link) at the end says: For busy memcached server you need to increase system file descriptor and IP port limits here is the code to do ...
1
vote
1answer
120 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?
1
vote
1answer
185 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 ...
1
vote
1answer
261 views

My ubuntu server can ping and ssh can connect, but ssh can't do the authuncation and halt

I have two ubuntu server. Each running php-cgi by phpfpm, memcached, mongodb. And these servers are not running in a high load state. After running several days. The server will halt. No service and ...
1
vote
1answer
320 views

php with apc+memcache+squid

I have a basic php installation. I want to install apc + memcached and squid to speed up the website. I have run into various resouorces regarding this, but one thing is not clear. Should php be in ...
0
votes
1answer
25 views

APC Extension unable to load dynamic library /usr/lib/php5/20090626/apcu.so

I have installed using this Tutorial https://www.23systems.net/2009/07/installing-alterative-php-cache-apc-with-plesk-on-ubuntu/ and all is running fine. Even APC is caching everything and apc.php ...
0
votes
1answer
55 views

Install memcached PHP extension on openSUSE 13.2

Is there a standard/supported way to get the memcached extension for PHP installed on openSUSE 13.2? On CentOS this was a case of yum -y install php-pecl-memcached. But it doesn't look like the ...
0
votes
1answer
133 views

Configuring MAXITEMSIZE in memcached in gentoo

Got memcached up and running (emerged net-misc/memcached) but on PHP I'm getting Server 127.0.0.1 (tcp 35817, udp 0) failed with: SERVER_ERROR object too large for cache I'm thus trying to change ...
0
votes
1answer
94 views

Allow Apache use more memory

I use apache2 behind nginx on 8 core CPU 48GB RAM server. Now my system uses only 3GB of all memory, but there are high load on CPUs. How can I use my free memory instead of CPUs time? I also use ...
0
votes
1answer
134 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 ...
0
votes
1answer
2k views

PHP-FPM save sessions in memcached

I'm trying to switch my session_handler to memcached, I'm not sure if it worked, it does not look like it did. vi /etc/php5/fpm/php.ini session.save_handler = memcached session.save_path = ...
0
votes
1answer
127 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 ...
0
votes
1answer
427 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 ...
0
votes
1answer
126 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 ...
0
votes
1answer
487 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 ...
0
votes
1answer
535 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 ...
0
votes
1answer
417 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
319 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
765 views

When set SESSION_ENGINE to memcached, Django website halts

I have set up memcached in Django using Pylibmc binding: CACHES = { 'default': { 'BACKEND': 'django.core.cache.backends.memcached.PyLibMCCache', 'LOCATION': ['10.241.1.1:11211', ...
0
votes
1answer
1k views

memcached install issues with lib event on server

I've installed libevent on my server in the directory root/data/ and have i'm about to install memcached with ./configure –with-lib-event=/data/; make; make install However, after running a bit I ...
2
votes
0answers
100 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: ...
2
votes
0answers
273 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 ...
1
vote
0answers
21 views

How to specify the timeout for health check in memcached session manager for tomcat

Basically the setup consists of two tomcat6 and two memcached nodes. memcached session manager version - 1.8.3 (latest release). I'm testing the following scenario: Client logs in into the ...
1
vote
0answers
164 views

Having Memcache and Memcached installed and enabled at the same time

Can I use both Memcache and Memcached php extensions on the same server at the same time? Just to be clear so you dont misunderstand what I mean by this question, here is my scenario: I have both ...
1
vote
0answers
291 views

What is the right value for memcache.session_redundancy?

The PHP manual for Memcache doesn't have any explanation for the memcache.session_redundancy option. The comment on that page (which is 4 years old) says it sets the number of copies of a session ...
1
vote
0answers
159 views

Why is memcache not functioning with elgg in debian 7?

I am moving a php website (built using elgg - www.elgg.org) from a CentOS server to a different Debian 7 server and have installed memcached + php5-memcache on both. I have recreated all the ...
1
vote
0answers
285 views

Memcached with SASL: Couldn't find mech PLAIN

I'm trying to get memcached working with SASL. I'm compiling memcached and libevent from source. These are the steps I took (both under root and a user, same result): Having these packages: ...
1
vote
0answers
137 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
204 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.) ...
1
vote
0answers
471 views

Memcached and repcached not replicating 2 master servers

I have memcached-1.2.8-repcached-2.2 installed on memcached on centos. They install went great and when i start memcached i get: replication: connect (peer=192.168.1.2:11212) replication: marugoto ...
1
vote
0answers
353 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. ...
0
votes
0answers
5 views

Memcached in Munin

I tried to configure the munin to load the memcached plugin. But the memcached plugin wont show up when i add the --suggest to the munin-node-configure command. But i appear when i do not add that ...
0
votes
0answers
15 views

Memcached removes data too early when -M option not specified

We are using memcached as a storage for php sessions and almost from the beginning noticed that sessions disappears too early (say, in 20-30 minutes instead of 3 hours as speicified in php memcached ...
0
votes
0answers
34 views

windows firewall & memcached service: open ports on firewall for local use?

memcached is used in local connected via 127.0.0.1:11211 on Windows Server 2008. Everything seems to work without having set anything on the firewall. But, can not understand if i must open 11211 ...
0
votes
0answers
257 views

PHP Warning: Unknown: Failed to write session data (memcached). Very infrequent

I installed memcached (2.2.0) libmemached (1.0.18) a few weeks ago. (Apache/2.4.10 and PHP 5.5.20), mostly for php session management. Generally I'm really pleased with performance but I notice this ...
0
votes
0answers
64 views

Counterintuitive drop in CPU

I am running a memcached service in a linux container pinned to a specific physical core. As expected the CPU increases when the number of requests increase. The requests are sent from a workload ...
0
votes
0answers
263 views

Flush mod_pagespeed configured with memcached

I just switched from a single LAMP (mod_pagespeed, SSL, APC, localhost memcached) server to a multi server setup. On the old server mod_pagespeed was not configured for memcached, only file based. ...
0
votes
0answers
137 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 ...
0
votes
0answers
234 views

CouchBase Client Fails to Cache Object less than 20mb. Time Out Error

I am caching my serialized POJO s(4mb-8mb size objects) concurrently into Couchbase server with CouchBase client (couchbase-client-1.4.3). for(upto 20 itertarions){ new Thread().start().. ...
0
votes
0answers
150 views

Memcached problems since upgrade from Ubuntu 12.04 to 14.04

I recently migrated to Ubuntu 14.04 with a Webprojekt (nginx,PHP5,MariaDB,memcached). All configs are exactly the same. But the cached sites sometimes don't load properly. I enabled the verbose mode ...
0
votes
0answers
295 views

Using memcached in php.ini is ignoring gc_maxlifetime?

Using php-fastcgi with session.save_handler = memcached and session.gc_maxlifetime = 1440, my sessions are never expiring. Memcached Cache is running full and then starting to evict old items after a ...
0
votes
0answers
73 views

memcached available, but not installed and unable to uninstall, but run in process

I installed memcached in my cent OS VPS. Somehow it's not work as i expected and now I switched to suPHP. But when I run 'top' command I can see 'memcached' run as a nobody user. 1727 nobody 20 ...
0
votes
0answers
150 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 ...
0
votes
0answers
106 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: ...
0
votes
0answers
718 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. ...