Oracle Linux上安装Redis
淳于熙云
YUM安装
$ yum search redis
========================================== N/S matched: redis ===========================================
collectd-redis.x86_64 : Redis plugin for collectd
collectd-write_redis.x86_64 : Redis output plugin for collectd
hiredis.x86_64 : Minimalistic C client library for Redis
hiredis-devel.x86_64 : Development files for hiredis
opensips-redis.x86_64 : Redis connector
pcp-pmda-redis.x86_64 : Performance Co-Pilot (PCP) metrics for Redis
perl-Apache-Session-Redis.noarch : Redis driver for Apache::Session::NoSQL
perl-Redis.noarch : Perl binding for Redis database
php-nrk-Predis.noarch : PHP client library for Redis
php-pecl-redis.x86_64 : Extension for communicating with the Redis key-value store
php-phpiredis.x86_64 : Client extension for Redis
python-redis.noarch : Python 2 interface to the Redis key-value store
python-trollius-redis.noarch : Redis client for the Python event loop PEP3156 for Trollius.
python2-django-redis.noarch : Full featured redis cache backend for Django
python2-redis.noarch : Python 2 interface to the Redis key-value store
redis-trib.noarch : Cluster management script for Redis
rh-redis32.x86_64 : Package that installs Redis 3.2
rh-redis32-runtime.x86_64 : Package that handles rh-redis32 Software Collection.
rh-redis32-scldevel.x86_64 : Package shipping development files for rh-redis32
rh-redis5.x86_64 : Package that installs Redis 5
rh-redis5-runtime.x86_64 : Package that handles rh-redis5 Software Collection.
rh-redis5-scldevel.x86_64 : Package shipping development files for rh-redis5
rubygem-redis.noarch : A Ruby client library for Redis
rubygem-redis-doc.noarch : Documentation for rubygem-redis
syslog-ng-redis.x86_64 : redis support for syslog-ng
uwsgi-logger-redis.x86_64 : uWSGI - redislog logger plugin
uwsgi-router-redis.x86_64 : uWSGI - Plugin for Redis router support
redis.x86_64 : A persistent key-value database
rh-redis32-redis.x86_64 : A persistent key-value database
rh-redis5-redis.x86_64 : A persistent key-value database
Name and summary matches only, use "search all" for everything.
$ sudo yum install -y redis
mongodb-org-4.4 | 2.5 kB 00:00:00
ol7_UEKR5 | 2.5 kB 00:00:00
ol7_addons | 2.5 kB 00:00:00
ol7_developer | 2.5 kB 00:00:00
ol7_developer_EPEL | 2.7 kB 00:00:00
ol7_latest | 2.7 kB 00:00:00
ol7_optional_latest | 2.5 kB 00:00:00
ol7_software_collections | 2.5 kB 00:00:00
(1/8): ol7_developer/x86_64/primary_db | 699 kB 00:00:01
(2/8): ol7_developer/x86_64/updateinfo | 7.9 kB 00:00:03
(3/8): ol7_optional_latest/x86_64/updateinfo | 1.2 MB 00:00:03
(4/8): ol7_latest/x86_64/updateinfo | 3.1 MB 00:00:04
(5/8): ol7_latest/x86_64/primary_db | 31 MB 00:00:04
(6/8): ol7_software_collections/x86_64/updateinfo | 8.6 kB 00:00:01
(7/8): ol7_optional_latest/x86_64/primary_db | 5.6 MB 00:00:03
(8/8): ol7_software_collections/x86_64/primary_db | 5.3 MB 00:00:02
Resolving Dependencies
--> Running transaction check
---> Package redis.x86_64 0:3.2.12-2.el7 will be installed
--> Processing Dependency: libjemalloc.so.1()(64bit) for package: redis-3.2.12-2.el7.x86_64
--> Running transaction check
---> Package jemalloc.x86_64 0:3.6.0-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=========================================================================================================
Package Arch Version Repository Size
=========================================================================================================
Installing:
redis x86_64 3.2.12-2.el7 ol7_developer_EPEL 543 k
Installing for dependencies:
jemalloc x86_64 3.6.0-1.el7 ol7_developer_EPEL 105 k
Transaction Summary
=========================================================================================================
Install 1 Package (+1 Dependent package)
Total download size: 648 k
Installed size: 1.7 M
Downloading packages:
(1/2): jemalloc-3.6.0-1.el7.x86_64.rpm | 105 kB 00:00:01
(2/2): redis-3.2.12-2.el7.x86_64.rpm | 543 kB 00:00:03
---------------------------------------------------------------------------------------------------------
Total 162 kB/s | 648 kB 00:00:03
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : jemalloc-3.6.0-1.el7.x86_64 1/2
Installing : redis-3.2.12-2.el7.x86_64 2/2
Verifying : redis-3.2.12-2.el7.x86_64 1/2
Verifying : jemalloc-3.6.0-1.el7.x86_64 2/2
Installed:
redis.x86_64 0:3.2.12-2.el7
Dependency Installed:
jemalloc.x86_64 0:3.6.0-1.el7
Complete!
$ systemctl status redis
● redis.service - Redis persistent key-value database
Loaded: loaded (/usr/lib/systemd/system/redis.service; disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/redis.service.d
└─limit.conf
Active: inactive (dead)
$ systemctl start redis
Failed to start redis.service: The name org.freedesktop.PolicyKit1 was not provided by any .service files
See system logs and 'systemctl status redis.service' for details.
[vagrant@ol7-vagrant ~]$ sudo systemctl start redis
[vagrant@ol7-vagrant ~]$ sudo systemctl status redis
● redis.service - Redis persistent key-value database
Loaded: loaded (/usr/lib/systemd/system/redis.service; disabled; vendor preset: disabled)
Drop-In: /etc/systemd/system/redis.service.d
└─limit.conf
Active: active (running) since Mon 2020-11-23 03:19:01 UTC; 3s ago
Main PID: 3929 (redis-server)
CGroup: /system.slice/redis.service
└─3929 /usr/bin/redis-server 127.0.0.1:6379
Nov 23 03:19:01 ol7-vagrant systemd[1]: Starting Redis persistent key-value database...
Nov 23 03:19:01 ol7-vagrant systemd[1]: Started Redis persistent key-value database.
$ redis-cli ping
PONG
redis默认只在localhost监听，可修改配置文件/etc/redis.conf增加监听地址。以下可知其监听端口默认为6379：
$ netstat -antup | grep -i 6379
(No info could be read for "-p": geteuid()=1000 but you should be root.)
tcp 0 0 127.0.0.1:6379 0.0.0.0:* LISTEN
此安装还创建了用户redis:
$ id redis
uid=993(redis) gid=993(redis) groups=993(redis)
连接到数据库：
$ redis-cli
127.0.0.1:6379>
显示redis基本信息：
127.0.0.1:6379> INFO
# Server
redis_version:
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:a3cb4c2bb6b6dbfd
redis_mode:standalone
os:Linux 4.14.35-1902.301.1.el7uek.x86_64 x86_64
arch_bits:64
multiplexing_api:epoll
gcc_version:4.8.5
process_id:4934
run_id:83328f0f9fe42fd41b1f15fcf4f4fc3699b2b180
tcp_port:6379
uptime_in_seconds:620
uptime_in_days:0
hz:10
lru_clock:12279199
executable:/usr/bin/redis-server
config_file:/etc/redis.conf
# Clients
connected_clients:1
client_longest_output_list:0
client_biggest_input_buf:0
blocked_clients:0
# Memory
used_memory:813576
used_memory_human:794.51K
used_memory_rss:7913472
used_memory_rss_human:7.55M
used_memory_peak:813576
used_memory_peak_human:794.51K
total_system_memory:1809174528
total_system_memory_human:1.68G
used_memory_lua:37888
used_memory_lua_human:37.00K
maxmemory:0
maxmemory_human:0B
maxmemory_policy:noeviction
mem_fragmentation_ratio:9.73
mem_allocator:jemalloc-3.6.0
# Persistence
loading:0
rdb_changes_since_last_save:0
rdb_bgsave_in_progress:0
rdb_last_save_time:1606114099
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:2
total_commands_processed:4
instantaneous_ops_per_sec:0
total_net_input_bytes:172
total_net_output_bytes:20003
instantaneous_input_kbps:0.00
instantaneous_output_kbps:0.00
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
migrate_cached_sockets: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:0.55
used_cpu_user:0.34
used_cpu_sys_children:0.00
used_cpu_user_children:0.00
# Cluster
cluster_enabled:0
# Keyspace
卸载
sudo systemctl stop redis
sudo systemctl disable redis
sudo yum remove redis
sudo rm -fr /var/lib/redis /var/log/redis /etc/logrotate.d/redis
sudo userdel redis
源代码安装
由于Yum安装的版本只是3.2.12，并不是最新，因此还是测试了源代码安装。
wget http://download.redis.io/redis-stable.tar.gz
tar xvzf redis-stable.tar.gz
cd redis-stable
make
编译在make时遇到了问题，原因是我Linux 7中gcc版本过低，需要4.9以上:
$ gcc --version
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44.0.3)
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
最简单的方法就是换到Linux 8。如果仍保持Linux 7，可以参照How to get gcc version >= 8 installed解决：
$ sudo yum install devtoolset-9
$ scl enable devtoolset-9 -- make
然后make test需要安装tcl8:
sudo yum install tcl.x86_64
make test
启动redis并连接：
$ export PATH=$PATH:~/redis-stable/src/
$ redis-server &
$ redis-cli info server | grep -i version
redis_version:6.0.9
gcc_version:8.3.1
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