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

-1
votes
1answer
38 views

NGINX + memcached, location not found

I want to configure nginx to read directly from memcached by key "match_1" for example. This is my server configuration server { listen 8080; server_name localhost; location /get_match {...
4
votes
3answers
5k 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: epel-release-...
1
vote
1answer
618 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
1k views

Problems installing PECL extension Memcache

I have installed memcached fine and seems working properly , and now I will need to install PECL extension memcache. Im running Centos 6.2 x86_64 .When I try to install gives me this error at the ...
0
votes
1answer
88 views

Should memcached be installed before or after cpanel? [closed]

I want to install memcached. I want to know if I should install cpanel first, or after the memcached installation
4
votes
2answers
6k views

error while installing the libmemcached

I get this while installing libmemcached root@server [/libmemcached]# make make all-am make[1]: Entering directory `/libmemcached' if /bin/sh ./libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -...
0
votes
1answer
158 views

Memcached no get_hits

I have a problem with memcached on Centos 6 with apache on port 8080 and Nginx on port 80 as reverse proxy for apache. I install Memcached to cache all static file : Here is my memcached configuration ...
1
vote
1answer
102 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
95 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
236 views

Why is Memcache not starting automatically?

I installed memcache in my CentOS server, and the respective libraries for php as well: Despite having installed both of them, I ended using Memcache $memcache = new Memcache; Since I wanted the ...
1
vote
2answers
883 views

Elasticsearch as memcache replacement

I am looking into replacing memcached with elasticsearch. Basically, I need to reduce my software stack and since I will be using elastic for searching, I was thinking of creating an index that will ...
0
votes
2answers
2k views

PHP memcached session redundancy

I'm trying to follow How To Share PHP Sessions on Multiple Memcached Servers article and implement that to my environment: /etc/php.d/memcache.ini: # grep -v ^\; /etc/php.d/memcache.ini extension=...
1
vote
0answers
535 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 ...
23
votes
5answers
27k views

Can a pool of memcache daemons be used to share sessions more efficiently?

We are moving from a 1 webserver setup to a two webserver setup and I need to start sharing PHP sessions between the two load balanced machines. We already have memcached installed (and started) and ...
0
votes
2answers
186 views

Wordpress (using varnish + apc + w3tc): Do the statistics get updated when the data is being retrieved from the cache?

If the data is served to the client from the varnish cache, does it still get registered as a hit in the statistics (could be derived from nginx logs or might be google analytics)? I believe if the ...
1
vote
1answer
527 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
votes
1answer
515 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
0answers
121 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 ...
2
votes
1answer
65 views

Different server response time for 2 web pages with the same view and template?

I've recently been facing hugely increased server response time for some of my web pages (response time in the range of 10-20 seconds). For example, for the page http://www.edmhunters.com/afrojack/ - ...
1
vote
2answers
2k views

increasing memcached limit size

I am having issues with the limit size of my memcached: How do I increase the limit_maxbytes? as the bytes_written is more than the limit_maxbytes?
0
votes
1answer
738 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 ...
2
votes
2answers
7k views

Memcached problems “failed to listen on TCP port 11211”

I just installed memcached on my Mac OS X 10.6.8. It installed perfectly and when I type in memcached in Terminal I get this: failed to listen on TCP port 11211 tcp listen: Address already in use ...
0
votes
2answers
1k views

Installing memcached deamon on Centos PHP conflicts

I have Centos 5.10 installed on my server and tried running the following command yum install php53u-pecl-memcached.x86_64 Setting up Install Process Resolving Dependencies --> Running transaction ...
0
votes
0answers
292 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
2k views

How much memory can I safely assign to memcached?

I'm looking into using memcached on our server. We've just upgraded and now have a fairly powerful box: DELL PowerEdge R710 Linux RHEL 5 - 64bit 12GB RAM (We used to be on a 32bit 4GB box). The ...
0
votes
1answer
331 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
0answers
361 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
votes
1answer
726 views

Installing Memcached on CentOS 6 Issue

Having a devil of a time getting Memecached on my CentOS 6 server (PHP 5.4.13). Usually all of the DigitalOcean help guides work smoothly (it's a MediaTemple server and support won't install ...
1
vote
2answers
3k views

repcached didn't work when replicate with 2 servers?

I have compiled the memcached-repcached with --enable-replication option, and started it like below: on the server 1: # /usr/local/memcached/bin/memcached -v -d -u memcached -l 192.168.7.106 -p ...
2
votes
1answer
440 views

Memcached cachesize 512M or 1G for VPS 2G? [closed]

I just started to use memcached on a VPS with 2Go of RAM. I set the cache size at 512 Mb, but I am wondering if I can go for 1024Mb. On the VPS there are: a local business website with very few ...
-1
votes
1answer
1k views

Forward localhost memcached server on port 12111 to domain.com memcached server

My customers are running many scripts that uses memcached, but all of them are using localhost as a address. My localhost server is now out of RAM, because it's doing many other things like WWW and ...
1
vote
1answer
501 views

PHP - Memcached - Libmemcached - Handle cache server outage

I am working on ensuring our app degrades gracefully in case of a complete cache outage, which is highly unlikely, as we have minimum of at least 3 cache nodes to add to the cache pool, by way of PHP'...
1
vote
1answer
216 views

Nginx memcached_pass directive unknown

I am setting up a new server instance on AWS and have run into something I don't know how to handle. I've set up exactly the same config on digital ocean before and there issue does not occur at all. ...
1
vote
1answer
232 views

PHP sessions in memcache - secure session path

Memcached is fine for sessions as I read. But what safe? Today we have more clients on one server. Every virtual host have own session.path. This is safe to prevent read sessions from other domain. ...
1
vote
1answer
341 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 ...
4
votes
1answer
4k views

How to replicate Memcache data among servers

A same question in SO can be found from here . But since I couldn't find any suitable answer, I am asking with additional info. I have many memcache clients but all of them access one memcache server ...
0
votes
2answers
310 views

Nginx and its caching systems. Are they all the same?

I'm a bit confuse about PageSpeed, Microcaching and Memcached. Are they just different tools that do the same job? I was initially thinking in use PageSpeed with Nginx. If I do that, do I need ...
0
votes
2answers
866 views

Apache Server with memcache, varnish and php slow request times

My issue is that these servers are taking rather long for request about 2 seconds on average just to serve files. When we had just one server doing everything it was noticeably faster even with the ...
6
votes
2answers
4k views

Memcached listen on selected interfaces

I am setting up Memcached on a Debian server that has two interfaces - eth0 (public) and eth1 (private). I want Memcached to listen on both eth1 and lo (loopback) so that it can be accessed even if ...
0
votes
1answer
115 views

Updating memcached…will the data be flushed?

I know if you restart memcached the data is lost. What about when an update happens? I am not 100% sure even how to do an update, but I think yum will do it automatically and it would be very bad if ...
1
vote
0answers
369 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 ...
14
votes
4answers
4k views

How well do nginx and memcached work together?

We have a Java EE-based web application running on a Glassfish app server cluster. The incoming traffic will mainly be RESTful requests for XML-based representations of our application resources, but ...
0
votes
1answer
548 views

Installing ElastiCache Cluster Client on PHP AWS Elastic Beanstalk (without creating resource)

Elastic Beanstalk does not, by default, install the ElastiCache Cluster Client PHP module. This is needed to connect to an ElastiCache node cluster. Reading around, most of the instructions relate to ...
1
vote
1answer
221 views

memcached works differently on two servers

I have a dev and a testing environment that (ostensibly) are set up the same, but code that works on the dev server doesn't work on the test server. I've narrowed it down to memcached. The dev ...
0
votes
1answer
306 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
49 views

Memcached: More items than connections?

I setup memcached for saving (serialized) PHP sessions. So everytime someone visits my site (1-n connections), a session (1 item) gets created. I don't use memcached for anything else yet. Question: ...
4
votes
1answer
744 views

Memcached keeps increasing cpu ussage

I'm running a memcached server which is serving two front end servers. These are connecting to the memcached server from Apache2/PHP using the standard PECL library. For some reason the memcached on ...
1
vote
1answer
2k views

Caching (memcache/redis) and multiple servers - best strategy

We're considering best strategy for using cache (memcache or redis based) in our application (Symfony2). It will be deployed on multiple (so far 3) separate machines with load balancing and separate ...
0
votes
0answers
484 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
1answer
158 views

Memcached Service Crashed Every Morning

I have Memcached 1.4.17 Install on CentOS server to serve a PHP website. The problem is every morning the Memcached Service will be crashed. Any suggestions?