Better performance with memcached cluster or local memcaches?

Posted by Nicholas Tolley Cottrell on Server Fault See other posts from Server Fault or by Nicholas Tolley Cottrell
Published on 2011-11-26T10:52:51Z Indexed on 2011/11/26 17:55 UTC
Read the original article Hit count: 307

Filed under:

memcached

|

centos

I have a small cluster of servers balancing a Java web app. Currently I have 3 memcached servers caching data and all web apps shares all 3 memcached instances.

I often get strange slowdowns and timeouts to some of the memcacheds and I wondering if there is a good way of analyzing the performance.

I am wondering whether my iptables rules (or some other system limitation) are blocking/slowing connections. I am considering reconfiguring the web apps so that they only query the memcached process on their own localhost.

© Server Fault or respective owner

Related posts about memcached

Memcached Debuging/Server Logs Monitor the Memcached Servers?

as seen on Server Fault - Search for 'Server Fault'
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 high memcached (presume its the memcached) the crash and browser gets stucks up. I dont think its jquery… >>> More
yum error when installing memcached

as seen on Server Fault - Search for 'Server Fault'
Hi, trying to install memcached with "yum install memcached" and i'm getting all these errors which I have no idea how to solve. Setting up Install Process Resolving Dependencies -- Running transaction check --- Package memcached.x86_64 0:1.4.5-1.el5.rf set to be updated -- Processing Dependency:… >>> More
First round playing with Memcached

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
To be honest I have not been very interested in the caching before I’m going to a project which would be using the multi-site deployment and high connection and concurrency and very sensitive to the user experience. That means we must cache the output data for better performance. After looked for… >>> More
Slow Memcached: Average 10ms memcached `get`

as seen on Server Fault - Search for 'Server Fault'
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 into the top dozen or so web views (by # of requests) I can see that some Memcache get take up to… >>> More
NoSQL Memcached API for MySQL: Latest Updates

as seen on Oracle Blogs - Search for 'Oracle Blogs'
With data volumes exploding, it is vital to be able to ingest and query data at high speed. For this reason, MySQL has implemented NoSQL interfaces directly to the InnoDB and MySQL Cluster (NDB) storage engines, which bypass the SQL layer completely. Without SQL parsing and optimization, Key-Value… >>> More

Related posts about centos

Problems with repositories on CentOS 3.9

as seen on Super User - Search for 'Super User'
Hello, I have CentOS 3.9 for i386. When I try to instal some thing with yum, i.e: yum install firefox or yum install firefox* or yum list firefox and so on, I get: +++++++++++++++++++ yum info firefox Gathering header information file(s) from server(s) Server: CentOS-3 - Addons Server: CentOS-3 -… >>> More
Problems with repositories on CentOS 3.9

as seen on Stack Overflow - Search for 'Stack Overflow'
Hello, I have CentOS 3.9 for i386. When I try to instal some thing with yum, i.e: yum install firefox or yum install firefox* or yum list firefox and so on, I get: +++++++++++++++++++ yum info firefox Gathering header information file(s) from server(s) Server: CentOS-3 - Addons Server: CentOS-3 -… >>> More
centos yum problems

as seen on Server Fault - Search for 'Server Fault'
I am really new to using linux and have just formatted my centos 5.2 vps and am trying to install links by using the command yum install links. But the following error gets displayed: [root@inverses ~]# yum install links Loading "fastestmirror" plugin Loading mirror speeds from cached hostfile *… >>> More
Networking issues with Linux server (CentOS 5.3)

as seen on Server Fault - Search for 'Server Fault'
I have a Linux server hosting our bug tracking software (CentOS 5.2 Kernel 2.6.18-128.4.1.el5) that I have having some strange network problems with. The machine is configured with two NICS, one for the public interface and the other for our server back end network. The problem is that after doing… >>> More
Networking issues with Linux server (CentOS 5.3)

as seen on Server Fault - Search for 'Server Fault'
I have a Linux server hosting our bug tracking software (CentOS 5.2 Kernel 2.6.18-128.4.1.el5) that I have having some strange network problems with. The machine is configured with two NICS, one for the public interface and the other for our server back end network. The problem is that after doing… >>> More