Questions tagged [memcached]
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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Which cache solution is suitable for Storing Cache data? [closed]
We are running many websites in Yii2 application. Currently we are using File Cache for Data Caching. Now we want to use load balancer and put our caching on dedicated server.
We will have to store ...
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Clear RAM Memory Cache and buffer on production Hadoop cluster with HDFS filesystem
we have Hadoop cluster with 265 Linux RHEL machines.
from total 265 machines, we have 230 data nodes machines with HDFS filesystem.
total memory on each data-node is 128G and we run many spark ...
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Memcached error for apache httpd 2.4
I created an EC2 instance with Apache HTTPD 2.4 with mod_ssl version 2.4.34. I've created a Memcached cluster on AWS ElastiCache version 1.6.17 with encryption in transit.
The goal is to have HTTPD ...
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How do I install php-memcached for php 8.x on Amazon Linux 2 aarch64?
I'm migrating our website from an older Centos server to a new EC2 instance (Amazon Linux 2, aarch64). I'd like to install both the LAMP stack and memcached on the EC2 instance stack; which is the ...
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How to install memcashed on a LAMP stack with PHP FPM?
I have a LAMP stack with PHP FPM and multiple virtual hosts with Wordpress sites on.
I have tried to install memcashed using this tutorial.
In Wordpress sitehealth I get: "You should use a ...
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PHP session store in cephfs
We need to support a lot of php version from 5.3 to 8.1 in K8s. Every version served by two or more pods. The sessions are stored localy in the pod's volumes, due to this solution we are using sticky ...
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SystemD memcached service - (code=exited, status=1/FAILURE)
So I had to deploy in Rocky Linux 8 memcached with SOCKET in /var/run/memcached
In order to avoid the service to fail, I have run the following:
systemctl edit memcached.service
Pasted in:
[Unit]
...
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Squid Cache is not caching anything - TCP_MISS is the result every time, please help me fix the configuration
I am trying to use Squid Cache for the first time. My aim – is that for any HTTP response from 192.168.0.2:3001 is cached and served from the cache.
My config is as follows:
http_port 3128
acl ...
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memcached causes Apache processes to hang indefinitely
I have been tracking down the source of Apache processes hanging indefinitely. Unfortunately, I need to regularly reboot Apache as it eventually exhausts all slots. The Apache status page below shows ...
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How to telnet to a unix socket in debian to test memcached
To test memcached on Ubuntu, I would run this command:
echo "stats settings" | nc -U /run/mydir/memcached.sock
However now I have changed to Debian, and Debian nc does not support the -U ...
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How to update memcached to 1.4.33 on centos? Yum says there is no update
I need to update memcached on centos7 from 1.4.15 to 1.4.33 however yum update says there isn't anything to update, clearly there is as there is a newer version. I can't find anything on google ...
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Error with memcache memcached php 7.4
The Server have this Error:
PHP Startup: Unable to load dynamic library 'memcached.so' (tried: /usr/lib/php/20190902/memcached.so (/usr/lib/php/20190902/memcached.so: undefined symbol: ...
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how to monitor number of "add" commands on memcached
so memcached provides a lot of stats to track usage (hits and misses).
sample output -
stats
STAT pid 1
STAT uptime 982226
STAT time 1630949306
STAT version 1.6.6
STAT libevent 2.0.21-stable
STAT ...
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The memcache was not invalidated by NSS responder
I was deleting a user.
# userdel u1
The memcache was not invalidated by nss responder.
But finally the user was deleted.
What does "The memcache was not invalidated by nss responder" means?
...
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Can I use apache2 and memcache in same server?
I am really new to server development. I have a server (Server version: Apache/2.4.41 (Ubuntu)) for Django and it's running on apache2. I want to use Memcache for a large queryset. I just wanna use ...
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How to remove apcu and memcached from centos?
I've always installed apcu and memcached on my server, but I'm not sure how useful they are.
Mostly 2-3 pages per visit are visited on my sites. And I'm not even sure if having them is a good thing or ...
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dovecot + memcached, how to?
Does anyone know how to utilize memcached with dovecot (in order to reduce number of MySQL queries)?
There is only very basic documentation regarding dovecot's Dictionary:
memcached:param=value:param2=...
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How to set MEMCACHED_SERVERS environmental variable for memcstat
I've installed memcached and libmemcached-tools on ubuntu 18.04.
Both of these commands work:
memcstat --servers=localhost
memcstat --servers=127.0.0.1
But in the man page for memcstat it says:
You ...
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Memcached crashes / spikes to 100% CPU with EC2, Nginx
I have a strange issue with PHP 7.4, Nginx, PHP-FPM and Memcached on EC2
Randomly the server will spike from 1% CPU to 100% and continue using everything it can until I reboot it.
Rebooting just the ...
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Memcached error: SERVER HAS FAILED AND IS DISABLED UNTIL TIMED RETRY
Here is my test code:
$host = 'localhost';
$port = '11211';
if (extension_loaded('memcached')) {
$mc = new Memcached;
$mc->addServer($host, $port);
if ($mc->set('test', 'TEST')) {
...
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Confusion with memcache size increase
I'm facing issues with my memcache recently as we received lot of data requests. So, I used telnet command to get some stats around the memcache.
For the production environment, I saw that there are ...
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Fast access to a hash set in Varnish
I am developing a Varnish pipeline that serves a mix of public and restricted resources.
Since access to public resources makes up the vast majority (>99.9%) of the traffic, I want to create ...
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Getting 499 status from nginx log upto 2 minutes in every 3 hours interval, when memcache restarts
I have two Application servers served by an another haproxy load balancer server. The application servers are connected with a memcache server and a mysql database server.
I am observing in every 3 ...
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I have a lot of traffic and only 1 server best config for nginx/varnish/apache configuration
I have a lot of traffic and only 1 server can I get some help with configuration
Nginx.conf config:
# For more information on configuration, see:
# * Official English Documentation: http://nginx....
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memcache container: Error starting userland proxy: listen tcp 0.0.0.0:11211: bind: address already in use
I am having problems setting up memcached on my docker. I get an error when I run: docker run --name=memcache -p 11211:11211 -d memcached memcached -m 128
This is the error that comes after running ...
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Memcached not working in PHP file but working on SSH - CentOS
On my CentOS 7, Memcached is running and working on SSH but not working in the PHP file. I've followed this article: https://www.mynotepaper.com/install-memcached-on-centos-7. This method was working ...
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Memcached fails/crashes every few hours
I have a CentOS 7 server with Memcached. There are a lot of requests, and usually after a few hours, the memcached daemon crashes. I always restart the service, but it crashes again a few hours later.
...
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Apache2 reverse proxy with response caching
I'm using Apache as a reverse proxy for an application running on a local port. I want to cache responses from this application in memory. So requesting the same URL frequently should give me cached ...
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Memcached stops responding after a few seconds
I'm having troubles with my memcached (v1.5.13) instance. It starts just fine but after a few seconds it becomes non responsive. I'm on a currently updated arch-linux box trying to access it just from ...
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Issue with the Memcached redundancy
I was asked to setup a Memcached server on two servers (one on each). For the records, I run PHP 5.6.5. Here is my setup:
memcached.ini:
extension=memcached.so
memcache.allow_failover=1
memcache....
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Roundcube 1.3.8 + Memcached + PHP 7.3
I'm testing out moving my Roundcube 1.3.8 install over to php 7.3. It's load balanced and I have been using memcache for session storage with php 5 without any issues:
$config['session_storage'] = '...
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Why can't I lower the item size in memcached (anymore)?
I'm running memcached and recently upgraded to the latest Debian release. I'm not sure what version of memcached I had before, but the new one doesn't like this configuration setting I had in the past:...
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helm install a chart and give parameters to the depencie chart
I am trying to use the chart stable/mcrouter for memcache sharding, everything works, but this chart uses a memcache chat as dependencie.
I would like to know if I can pass parameters to memcache ...
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PHP's MemcacheD extension DLL for Windows
On my PHP 5.6 site I have been using the Memcache extension to interface with the memcached daemon. As the extension has a matching DLL, it meant I could deploy it on my Windows dev machine as well ...
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How to tune memcached service [duplicate]
I am new to server management and earlier I used shared hosting and thought to go for VPS and get more for my websites.
VPS specs:
RAM: 12GB
CPU: 4 Core Intel E5
SSD: 300GB
Server: Apache
OS: Ubuntu ...
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Why do free -m and htop show different amounts of total memory?
When I run free -m, I get different data from when I use htop.
free -m:
total used free shared buff/cache available
Mem: 992 396 149 ...
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AWS Apache 2.4 + socache/memcache == not storing
Fleet of Apache 2.4 reverse proxies on an AWS EC2 instance, directed to cache to an ElastiCache memcache cluster. Pretty typical stuff.
The CacheDetailHeader directive is on, and regularly sends the ...
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Allowing remote connection of memcache server
My memcache server is up and running on Server A.
service memcached start
memcached -d -u nobody -m 512 -p 11211 127.0.0.1
chkconfig --list | grep memcache
chkconfig memcached on
I also have a web ...
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Memcached doesn't seem to use RAM
I am new to memcached but have installed and am using it for an application.
My application reports that it should have a few hundred thousand items cached, however memcached says it only has ...
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Memcache build error on CentOS
I have a problem installing "Pterodactyl Panel" on Centos 7. I am stuck at the line "pecl install memcache". The errors are shown below:
[root@localhost ~]# pecl install memcache
WARNING: channel "...
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Where/How I declare memcached server's IP with Nginx?
Good day!
I have a forum configured with MyBB. Everything was up and running in Ubuntu 14.04, but my friend tried to install 16.04 on it and first saved everything (site's config, letsencrypt files, ...
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Memcached fails after a few hours of usage
I just installed CentOS 7, with Apache 2, PHP 5.6. I also installed memcached, but it keeps failing after a few hours of usage, so I have to restart it at least 3 times a day.
[root@myserver log]# ...
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Memcached servers keeps failing
Everyday I get an error email from my python flask app with the following error:
WriteError: error 5 from memcached_set: (54648992) SERVER HAS FAILED
AND IS DISABLED UNTIL TIMED RETRY, host: 127.0.0....
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memcached on RedHat build PHP 5.6
I am trying to setup memcached on a server running RedHat PHP 5.6.25
I have successfully installed memcache but cannot find how to install memcached - is there a package available? If not how can I ...
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Memcache , python client doesnt distribute the keys among all of the servers in the pool
I have 7 webservers with 64gb of ram each, I want to make use some of this 64 gb of ram with memcached, so I assigned 30gb to memcache in each webservers and added all of the 7 servers to the memcache ...
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Is it possible to migrate Memcached cluster data to Redis?
I have searched Google and SO and surprisingly haven't been able to find a very good answer to this.
Basically, I want to know if there is any sort of method or best practice for migrating cache data ...
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How to use PHP memcached for session storage with Auto Scaling?
I already have memcached installed in my servers and I've modified the default php.ini to:
session.save_handler = memcached
session.save_path = "127.0.0.1:11211"
I'm using Amazon EC2 instances (...
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nginx/memcached for cached web proxy
I'm trying to setup nginx as a caching layer on top of an HTTP proxy - along with memcached to do the actual caching. The goal here is that we have an internal application which will make frequent ...
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Connect Nginx Load Balancer with Memcache server
I m using Nginx as Load balancer with ngx_http_memcached_module and I installed a Memcached Server that I would like to connect it with Nginx to make it obtain responses from a Memcached server.
Load ...
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