如何在 FreeBSD 13 上安装和配置 Redis 6

Helo

Redis 是一种内存中数据结构存储，用作分布式内存中键值数据库、缓存和消息代理，具有可选的持久性。Redis 支持各种抽象数据结构，如字符串、列表、映射、集合、排序集、HyperLogLogs、位图、流、空间索引等。

在本教程中，我们将学习如何在 FreeBSD 13 上安装 Redis 6。
#先决条件
要继续操作，请确保您具有：

更新的 FreeBSD 13 服务器
访问互联网
对服务器或具有 sudo 访问权限的用户的 root 访问权限
#更新 FreeBSD 13 服务器
在继续操作之前，请确保使用以下命令更新服务器（作为 root 用户）：

pkg update
pkg upgrade

我们还确保使用此命令安装 vim，因为我们稍后会使用它：

pkg install -y vim

#安装 redis
Redis 在默认的 FreeBSD 仓库中可用。要安装它，请使用以下命令：

pkg install -y redis

这是我服务器上的输出

# pkg install -y redis

Updating FreeBSD repository catalogue...
FreeBSD repository is up to date.
All repositories are up to date.
The following 1 package(s) will be affected (of 0 checked):

New packages to be INSTALLED:
	redis: 6.2.6

Number of packages to be installed: 1

The process will require 6 MiB more space.
729 KiB to be downloaded.
&#91;1/1] Fetching redis-6.2.6.pkg: 100%  729 KiB 746.3kB/s    00:01
Checking integrity... done (0 conflicting)
&#91;1/1] Installing redis-6.2.6...
===> Creating groups.
Creating group 'redis' with gid '535'.
===> Creating users
Creating user 'redis' with uid '535'.
&#91;1/1] Extracting redis-6.2.6: 100%
=====
Message from redis-6.2.6:

--
To setup "redis" you need to edit the configuration file:
      /usr/local/etc/redis.conf

      To run redis from startup, add redis_enable="YES"
      in your /etc/rc.conf.

Use this command to confirm the redis package installed:

# pkg info redis

redis-6.2.6
Name           : redis
Version        : 6.2.6
Installed on   : Fri Nov 19 10:01:00 2021 UTC
Origin         : databases/redis
Architecture   : FreeBSD:13:amd64
Prefix         : /usr/local
Categories     : databases
Licenses       : BSD3CLAUSE
Maintainer     : osa@FreeBSD.org
WWW            : https://redis.io/
Comment        : Persistent key-value database with built-in net interface
Options        :
	JEMALLOC       : off
	LUA            : off
	LUAJIT         : off
	LUAJITOR       : off
	TESTS          : off
	TLS            : off
	TRIB           : off
Annotations    :
	FreeBSD_version: 1300139
	repo_type      : binary
	repository     : FreeBSD
Flat size      : 6.10MiB
Description    :
Redis is an open source, advanced key-value store.  It is often referred
to as a data structure server since keys can contain strings, hashes,
lists, sets and sorted sets.

You can run atomic operations on these types, like appending to a string;
incrementing the value in a hash; pushing to a list; computing set
intersection, union and difference; or getting the member with highest
ranking in a sorted set.

In order to achieve its outstanding performance, Redis works with an
in-memory dataset.  Depending on your use case, you can persist it either
by dumping the dataset to disk every once in a while, or by appending each
command to a log.

Redis also supports trivial-to-setup master-slave replication, with very
fast non-blocking first synchronization, auto-reconnection on net split
and so forth.

WWW: https://redis.io/

Now that the service has been installed, let’s start it with this command:

service redis onestart

Starting redis.

Enable the service so it starts on boot:

# sysrc redis_enable="YES"

redis_enable:  -> YES

After the service starts, use this command to check the status of the service:

# service redis status

redis is running as pid 33056.

The above indicates that the service has been started successfully.

#Configuring Redis
The redis configuration file is located in this path . In this section, we are going to update the redis configuration file to allow remote access, to set an authentication password, to add a pid file and to Set Persistent Store for Recovery./usr/local/etc/redis.conf

Edit redis config file using this:

vim /usr/local/etc/redis.conf

To allow remote access to the redis instance, bind redis to using this line:0.0.0.0

bind * -::*

要在 redis 中设置密码，请使用以下命令：

requirepass j2GfJuLFR8

要向 redis 添加 pid 文件：

pidfile /var/run/redis/redis-server.pid

通过将 appendonlyvalue 更改为 yes 来设置用于恢复的持久存储

appendonly yes
appendfilename "appendonly.aof"

重新启动 redis 服务以应用更改：

# service redis restart
Stopping redis.
Waiting for PIDS: 33056.
Starting redis.

#在 Redis 中连接和执行基本操作
在本地连接到 redis：

redis-cli

要进行身份验证，请执行以下操作：

# redis-cli

127.0.0.1:6379> auth j2GfJuLFR8
OK
127.0.0.1:6379>

您应该在输出中收到。如果输入了错误的密码，身份验证将失败。OK

检查redis信息。

127.0.0.1:6379> INFO

这将输出一长串数据。您可以通过将 Section 作为参数传递来限制输出。例如

127.0.0.1:6379> INFO Server
# Server
redis_version:6.2.6
redis_git_sha1:00000000
redis_git_dirty:0
redis_build_id:74f6bda298c45b9e
redis_mode:standalone
os:FreeBSD 13.0-RELEASE-p4 amd64
arch_bits:64
multiplexing_api:kqueue
atomicvar_api:atomic-builtin
gcc_version:4.2.1
process_id:33134
process_supervised:no
run_id:7363d70d4e75fdaf28e8738a987f4b2ef2da6d8d
tcp_port:6379
server_time_usec:1637316624510229
uptime_in_seconds:56
uptime_in_days:0
hz:10
configured_hz:10
lru_clock:9926672
executable:/usr/local/bin/redis-server
config_file:/usr/local/etc/redis.conf
io_threads_active:0

#执行 Redis 基准测试
使用并行连接运行基准测试，针对本地 redis 的请求总数，以测试其性能。1510k

$ redis-benchmark -h 127.0.0.1 -p 6379 -n 10000 -c 15 -a j2GfJuLFR8

====== PING_INLINE ======
  10000 requests completed in 0.23 seconds
  15 parallel clients
  3 bytes payload
  keep alive: 1
  host configuration "save": 3600 1 300 100 60 10000
  host configuration "appendonly": no
  multi-thread: no

Latency by percentile distribution:
0.000% <= 0.031 milliseconds (cumulative count 1)
50.000% <= 0.095 milliseconds (cumulative count 6342)
75.000% <= 0.103 milliseconds (cumulative count 7740)

..........

Cumulative distribution of latencies:
29.540% <= 0.103 milliseconds (cumulative count 2954)
99.810% <= 0.207 milliseconds (cumulative count 9981)
99.990% <= 0.303 milliseconds (cumulative count 9999)
100.000% <= 0.407 milliseconds (cumulative count 10000)

Summary:
  throughput summary: 91743.12 requests per second
  latency summary (msec):
          avg       min       p50       p95       p99       max
        0.121     0.032     0.127     0.167     0.183     0.319

有关更多选项和示例，请使用：

redis-benchmark --help

#结论
在本指南中，我们设法在 FreeBSD 13 中安装和配置 Redis 6。