[Redis Album] [Methods and steps for installing Php-redis under 1]ubuntu12.04

First release path: Phpredis installation

A long time did not write blog, a lot of posts are not finished, today just take time to finish this blog post, I hope to have a certain help to everyone

Let's start with a brief introduction to Redis:

Redis is fully open source free, complies with BSD protocol, advanced Key–value persistent products. It is commonly referred to as a data structure server, because the value can be a string (string), a hash (MAP), a list, a collection (sets), and an ordered collection (sorted sets).

This is the official website of the Chinese translation, the English is not necessary to write up, if you want to see English, you can go to redis.io up to see, Chinese can go to redis.cn to see

About the installation and use of Php-redis has been written by a lot of people, I am here just to complete a verification process

Installing Redis

wget http://download.redis.io/redis-stable.tar.gz
Tar xvzf redis-stable.tar.gz
CD redis-stable
Make
sudo make install (if the root user can not use sudo)

After the installation is complete, copy the following configuration file redis.conf, here for more convenient use

sudo mkdir/etc/redis/
sudo cp redis.conf/etc/redis/

At this point start the next redis look at the boot method:

Redis-server/etc/redis/redis.conf

The interface effect after startup:

[Email protected]:~/documents/phpredis$ redis-server/etc/redis/redis.conf
[16859] 10:05:30.292 # requested maxclients of 10000 requiring at least 10032 max file descriptors.
[16859] 10:05:30.293 # Redis can ' t set maximum open files to 10032 because of OS error:operation not permitted.
[16859] 10:05:30.293 # Current maximum open files are 1024. MaxClients have been reduced to 4064 to compensate for low ulimit. If you need higher maxclients increase ' ulimit-n '.
[16859] 10:05:30.293 # warning:32 bit instance detected but no memory limit set. Setting 3 GB maxmemory limit with ' noeviction ' policy now.
_._
_.-“__ ”-._
_.-"'. `_. "-._ Redis 2.8.13 (00000000/0)
.-".-" '. "' \ \ _.,_"-._
(',.-' | ',) Running in Stand alone mode
| '-._ '-...-' __...-. ' -._| ' ' _.-' | port:6379
| '-._ '. _/_.-' | pid:16859
'-._ '-._ '-./_.-' _.-'
| '-._ '-._ '-.__.-' _.-' _.-' |
| '-._ '-._ _.-' _.-' | Http://redis.io
'-._ '-._ '-.__.-' _.-' _.-'
| '-._ '-._ '-.__.-' _.-' _.-' |
| '-._ '-._ _.-' _.-' |
'-._ '-._ '-.__.-' _.-' _.-'
'-._ '-.__.-' _.-'
'-._ _.-'
'-.__.-'

[16859] 10:05:30.308 # Server started, Redis version 2.8.13
[16859] 10:05:30.308 # WARNING Overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add ' Vm.overcommit_memory = 1′to/etc/sysctl.conf and then reboot or run the command ' Sysctl vm.overcom Mit_memory=1′for this to take effect.
[16859] 10:05:30.308 * The server is now-accept connections on port 6379

If you want to run in the background, you can perform redis-server/etc/redis/redis.conf &, or modify the Daemonize settings in the configuration file/etc/redis/redis.conf to Yes.

When set to Daemonize, start redis-server and connect to Redis-server using REDIS-CLI

Redis-cli

After the connection is successful:

[Email protected]:~/documents/phpredis$ redis-cli
127.0.0.1:6379>

Enter info to view:

127.0.0.1:6379> Info
# Server
redis_version:2.8.13
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:7331093c2c819968
Redis_mode:standalone
Os:linux 3.2.0-29-generic-pae i686
Arch_bits:32
Multiplexing_api:epoll
gcc_version:4.6.3
process_id:16890
run_id:660fc790eb501ea29b01b8bb9551f4711ab5f151
tcp_port:6379
Uptime_in_seconds:6
uptime_in_days:0
Hz:10
lru_clock:14868319
Config_file:/etc/redis/redis.conf

# clients
Connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0

# Memory
used_memory:424880
used_memory_human:414.92k
used_memory_rss:1609728
used_memory_peak:424880
used_memory_peak_human:414.92k
used_memory_lua:22528
mem_fragmentation_ratio:3.79
mem_allocator:jemalloc-3.6.0

# persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1407377241
Rdb_last_bgsave_status:ok
Rdb_last_bgsave_time_sec:-1
Rdb_current_bgsave_time_sec:-1
aof_enabled:0
aof_rewrite_in_progress:0
aof_rewrite_scheduled:0
Aof_last_rewrite_time_sec:-1
Aof_current_rewrite_time_sec:-1
Aof_last_bgrewrite_status:ok
Aof_last_write_status:ok

# Stats
Total_connections_received:1
total_commands_processed:0
instantaneous_ops_per_sec:0
rejected_connections:0
sync_full:0
sync_partial_ok:0
sync_partial_err:0
expired_keys:0
evicted_keys:0
keyspace_hits:0
keyspace_misses:0
pubsub_channels:0
pubsub_patterns:0
latest_fork_usec:0

# Replication
Role:master
connected_slaves:0
master_repl_offset:0
repl_backlog_active:0
repl_backlog_size:1048576
repl_backlog_first_byte_offset:0
repl_backlog_histlen:0

# CPU
used_cpu_sys:0.00
used_cpu_user:0.00
used_cpu_sys_children:0.00
used_cpu_user_children:0.00

# Keyspace

This indicates that the Redis service started successfully, as for the optimization, the following article

Next we go to configure Php-redis

The first thing to install is Git,php5,apache2,php5-dev

sudo apt-get install php5 php5-dev apache2

Installation takes some time

Under the Php-redis source code directory, execute the

git clone Https://github.com/nicolasff/phpredis.git

Phpize

./configure

Make && sudo make install

Tip Information:

Installing Shared extensions:/usr/lib/php5/20121212+lfs/

Shared library under the path indicated above

Configure Php-redis

Create index.php under/var/www/html and write the following:

<?php
Phpinfo ();
?>

And under the/etc/php5/mods-available set up a Redis.ini, the contents are as follows:

Extension=redis.so

And in/ETC/PHP5/APACHE2/CONF.D and/ETC/PHP5/CLI/CONF.D to establish a soft link with redis.ini, where the CLI this part is critical, otherwise php-m can not get any of the Redis module information, That cannot be loaded successfully using Phpredis

Ln-s/etc/php5/mods-available/redis.ini/etc/php5/cli/conf.d/10-redis.ini
Ln-s/etc/php5/mods-available/redis.ini/etc/php5/apache2/conf.d/10-redis.ini

Restart Apache2 Service

sudo service apache2 restart

Here you can see the configuration of the Php-redis by opening Ubuntu corresponding ip/index.php

Additional. ini files parsed

/etc/php5/apache2/conf.d/05-opcache.ini,/etc/php5/apache2/conf.d/10-pdo.ini,/etc/php5/apache2/conf.d/10- Redis.ini,/etc/php5/apache2/conf.d/20-json.ini,/etc/php5/apache2/conf.d/20-readline.ini

Redis Support

Redis	enabled
Redis Version	2.2.5

Session

session support	Enabled
Registered Save handlers	files user Redis
registered Serializer Handlers	php_serialize PHP php_binary wddx

With this information, you start to test the code

Set up the testredis.php, which reads as follows:

<?php
$redis = new Redis ();
$redis->connect (' 127.0.0.1′,6379);
Var_dump ($redis->info ());
?>

Then execute PHP testredis.php

can see the corresponding content at the terminal

You can also see the corresponding content on the Web side.