RediSearch的安装，后台启动，持久化
环境：
Ubuntu 16.04 （如果是CentOS，内核需要7以上）
Redis 4.0.1 (redis需要4以上）
cmake 3.13.3 （cmake需要3以上）
先安装cmake
apt install cmake校验cmake是否安装成功
cmake -version
下载RediSearch源码：
git clone https://github.com/RedisLabsModules/RediSearch.git进入RediSearch文件夹
cd RediSearch创建build文件夹，并进入文件夹
mkdir build
cd build使用cmake构建
cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo
注意：‘=’前后不能有空格，否则报错，如下图：
root@ubuntu:/program/RediSearch/build# cmake .. -DCMAKE_BUILD_TYPE = RelWithDebInfo
Parse error in command line argument: -DCMAKE_BUILD_TYPE
Should be: VAR:type=value
CMake Error: No cmake script provided.
CMake Error: Problem processing arguments. Aborting.
构建完成后，使用make编译
make安装Redis（版本必须高于4）
$ wget http://download.redis.io/releases/redis-4.0.1.tar.gz
$ tar -zxvf redis-4.0.1.tar.gz
$ cd redis-4.0.1
$ make查看redis版本
./redis-server -v用redis-server启动RediSearch
./redis-server --loadmodule ../../../build/redisearch.so 启动成功
也可以把redis-server与redis-cli拷贝到redisearch.so同一目录下，便可直接启动
./redis-server --loadmodule ./redisearch.so
后台启动redisearch，将redis.conf也拷贝到redisearch.so同一目录下，将daemonize no 改为 daemonize yes，保存退出
# daemonize no
daemonize yes
后台启动redisearch
./redis-server ./redis.conf --loadmodule ./redisearch.so
使用redis-cli连接测试是否启动成功，--raw表示以存储形式显示
./redis-cli --raw
开启aof持久化，编辑redis.conf文件将appendonly no 改为 appendonly yes，保存退出
# appendonly no
appendonly yes
关闭并重启redisearch
root@ubuntu:/program/RediSearch/build# redis-cli -p 6379 shutdown
root@ubuntu:/program/RediSearch/build# ./redis-server ./redis.conf --loadmodule ./redisearch.so
13127:C 31 Jan 01:38:13.242 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
13127:C 31 Jan 01:38:13.242 # Redis version=4.0.1, bits=64, commit=18ea318e, modified=0, pid=13127, just started
13127:C 31 Jan 01:38:13.242 # Configuration loaded
测试生效
root@ubuntu:/program/RediSearch/build# ./redis-server ./redis.conf --loadmodule ./redisearch.so
13127:C 31 Jan 01:38:13.242 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
13127:C 31 Jan 01:38:13.242 # Redis version=4.0.1, bits=64, commit=18ea318e, modified=0, pid=13127, just started
13127:C 31 Jan 01:38:13.242 # Configuration loaded
root@ubuntu:/program/RediSearch/build# ./redis-cli --raw
127.0.0.1:6379> FT.CREATE myIdx SCHEMA title TEXT WEIGHT 5.0 body TEXT url TEXT
OK
127.0.0.1:6379> FT.ADD myIdx doc1 1.0 FIELDS title "hello world" body "lorem ipsum" url "http://redis.io"
OK
127.0.0.1:6379> ft.get myIdx doc1
title
hello world
body
lorem ipsum
url
http://redis.io
127.0.0.1:6379>
root@ubuntu:/program/RediSearch/build# redis-cli -p 6379 shutdown
root@ubuntu:/program/RediSearch/build# ./redis-server ./redis.conf --loadmodule ./redisearch.so
13161:C 31 Jan 01:40:10.845 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
13161:C 31 Jan 01:40:10.845 # Redis version=4.0.1, bits=64, commit=18ea318e, modified=0, pid=13161, just started
13161:C 31 Jan 01:40:10.845 # Configuration loaded
root@ubuntu:/program/RediSearch/build# ./redis-cli --raw127.0.0.1:6379> ft.get myIdx doc1
title
hello world
body
lorem ipsum
url
http://redis.io
127.0.0.1:6379>
指定日志文件，编辑redis.conf，找到 logfile ""，在引号中添加绝对路径
logfile "/program/RediSearch/build/redis.log"