Memcached is one of the widely used distributed memory object caching solution out there. I’ve been using it since last 3 years actively for number of various projects.
Here are the key advantages of using Memcached for your application.
- Very light weight
- Easy and Simple installation steps
- Easy to setup server with single click
- Deploy on Mac OS X, Windows or cloud servers as per your need
- PHP, Java handy clients code available
- Nice documentation with API commands
- Light memory and CPU footprint
- Easy maintenance
- Open Sourced and Free
If you have any of below question about Memcached then you are at right place.
- How to Install, configure, verify memcached?
- Installing Memcached on Mac OS X
- How to install Memcached using
brew?
Let’s get started:
Approach-1)
Step-1 – Installation
Open Mac Terminal and type command brew install memcached.
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bash$ brew install memcached ==> Installing dependencies for memcached: openssl and libevent ==> Installing memcached dependency: openssl ==> Downloading https://homebrew.bintray.com/bottles/openssl-1.0.2q.mojave.bottle.tar.gz ######################################################################## 100.0% ==> Pouring openssl-1.0.2q.mojave.bottle.tar.gz ==> Caveats A CA file has been bootstrapped using certificates from the SystemRoots keychain. To add additional certificates (e.g. the certificates added in the System keychain), place .pem files in /usr/local/etc/openssl/certs and run /usr/local/opt/openssl/bin/c_rehash openssl is keg-only, which means it was not symlinked into /usr/local, because Apple has deprecated use of OpenSSL in favor of its own TLS and crypto libraries. If you need to have openssl first in your PATH run: echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile For compilers to find openssl you may need to set: export LDFLAGS="-L/usr/local/opt/openssl/lib" export CPPFLAGS="-I/usr/local/opt/openssl/include" ==> Summary 🍺 /usr/local/Cellar/openssl/1.0.2q: 1,794 files, 12.1MB ==> Installing memcached dependency: libevent ==> Downloading https://homebrew.bintray.com/bottles/libevent-2.1.8.mojave.bottle.tar.gz ######################################################################## 100.0% ==> Pouring libevent-2.1.8.mojave.bottle.tar.gz 🍺 /usr/local/Cellar/libevent/2.1.8: 846 files, 2.2MB ==> Installing memcached ==> Downloading https://homebrew.bintray.com/bottles/memcached-1.5.12.mojave.bottle.tar.gz ######################################################################## 100.0% ==> Pouring memcached-1.5.12.mojave.bottle.tar.gz ==> Caveats To have launchd start memcached now and restart at login: brew services start memcached Or, if you don't want/need a background service you can just run: /usr/local/opt/memcached/bin/memcached ==> Summary 🍺 /usr/local/Cellar/memcached/1.5.12: 11 files, 198.9KB ==> Caveats ==> openssl A CA file has been bootstrapped using certificates from the SystemRoots keychain. To add additional certificates (e.g. the certificates added in the System keychain), place .pem files in /usr/local/etc/openssl/certs and run /usr/local/opt/openssl/bin/c_rehash openssl is keg-only, which means it was not symlinked into /usr/local, because Apple has deprecated use of OpenSSL in favor of its own TLS and crypto libraries. If you need to have openssl first in your PATH run: echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile For compilers to find openssl you may need to set: export LDFLAGS="-L/usr/local/opt/openssl/lib" export CPPFLAGS="-I/usr/local/opt/openssl/include" ==> memcached To have launchd start memcached now and restart at login: brew services start memcached Or, if you don't want/need a background service you can just run: /usr/local/opt/memcached/bin/memcached |
Step-2: Verification
Verify that it’s started successfully.
Type command ps -few | grep memcached.
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bash-3.2$ ps -few | grep memcached 110048994 88258 88202 0 12:31PM ttys000 0:00.00 grep memcached |
You will see memcached process as part of a result.
By default Memcached runs on port 11211.
Using
brewis the safest and easiest way to install Memcached on Mac OS X. If you don’t have brew installed locally then follow below manual approach.
Approach-2)
Install libevent manually.
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bash-3.2$ wget https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz --2018-12-05 12:45:32-- https://github.com/libevent/libevent/releases/download/release-2.1.8-stable/libevent-2.1.8-stable.tar.gz Resolving github.com (github.com)... 192.30.255.113, 192.30.255.112 Connecting to github.com (github.com)|192.30.255.113|:443... connected. HTTP request sent, awaiting response... 302 Found Location: https://github-production-release-asset-2e65be.s3.amazonaws.com/1856976/f9ea6922-e66b-11e6-9f5c-722c00daa657?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20181205%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20181205T184532Z&X-Amz-Expires=300&X-Amz-Signature=4b210170c4bf645011fe368024396eb8854502f5efc0abc200bd0ab91fb4c66f&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dlibevent-2.1.8-stable.tar.gz&response-content-type=application%2Foctet-stream [following] --2018-12-05 12:45:32-- https://github-production-release-asset-2e65be.s3.amazonaws.com/1856976/f9ea6922-e66b-11e6-9f5c-722c00daa657?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20181205%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20181205T184532Z&X-Amz-Expires=300&X-Amz-Signature=4b210170c4bf645011fe368024396eb8854502f5efc0abc200bd0ab91fb4c66f&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dlibevent-2.1.8-stable.tar.gz&response-content-type=application%2Foctet-stream Resolving github-production-release-asset-2e65be.s3.amazonaws.com (github-production-release-asset-2e65be.s3.amazonaws.com)... 52.216.97.155 Connecting to github-production-release-asset-2e65be.s3.amazonaws.com (github-production-release-asset-2e65be.s3.amazonaws.com)|52.216.97.155|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 1026485 (1002K) [application/octet-stream] Saving to: ‘libevent-2.1.8-stable.tar.gz’ libevent-2.1.8-stable.tar.gz 100%[==============================================================================================>] 1002K 126KB/s in 7.9s 2018-12-05 12:45:41 (127 KB/s) - ‘libevent-2.1.8-stable.tar.gz’ saved [1026485/1026485] bash-3.2$ tar xvfz libevent-2.1.8-stable.tar.gz bash-3.2$ cd libevent-2.1.8-stable bash-3.2$ ./configure bash-3.2$ make bash-3.2$ sudo make install |
Install memcached manually.
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bash-3.2$ wget https://memcached.org/files/memcached-1.5.12.tar.gz --2018-12-05 12:49:28-- https://memcached.org/files/memcached-1.5.12.tar.gz Resolving memcached.org (memcached.org)... 107.170.231.145 Connecting to memcached.org (memcached.org)|107.170.231.145|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 457719 (447K) [application/octet-stream] Saving to: ‘memcached-1.5.12.tar.gz’ memcached-1.5.12.tar.gz 100%[==============================================================================================>] 446.99K 810KB/s in 0.6s 2018-12-05 12:49:29 (810 KB/s) - ‘memcached-1.5.12.tar.gz’ saved [457719/457719] bash-3.2$ tar xvfz memcached-1.5.12.tar.gz bash-3.2$ cd memcached-1.5.12 bash-3.2$ ./configure bash-3.2$ make bash-3.2$ sudo make install |
At this stage your memcached is installed successfully.
Next step is to start memcached process. Run below command and your memcached process will start on port 12345.
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bash-3.2$ memcached -p 12345 |
Enjoy and happy coding guys!! Let me know if you face any issue installing Memcached.
What next? Create very simple Java Clients with 3 different approaches.
- Memcached Java client using net.spy.spymemcached Library
- Memcached Java client using com.whalin.Memcached-Java-Client and com.googlecode.xmemcached Libraries