redis-cli启动时可以带的参数

短命女 2022-06-14 04:09 262阅读 0赞

本文所有内容是从https://redis.io/topics/rediscli来的

1.直接使用redis-cli来使用命令

redis-cli get name  \#返回name的值

redis-cli get name >/usr/local/redis.txt

2.redis-cli连接host,port,password,database（最有用）

redis-cli -h xxxx -p 6379 -a password  -n 0(指定几号数据库,默认0号数据库)

密码可以通过以下命令来设置

config set requirepass "123456"  \#本次生效，要持久化就用config rewrite

config rewrite \#写到文件中，就是redis-server redis.conf启动时指定的redis.conf，不然不能写

3.从外部文件中读取内容

test.txt

redis-cli  set name <test/txt  \#用\\n换行

结果为12\\n13\\n14\\n

test.txt

set name tom

set age 18

set addr hangzhou

cat test.txt |redis-cli \#会把test.txt里的命令传给redis-cli

4.重复执行

redis-cli -r 5 get name  \#重复五次，-1就是一直执行

redis-cli -r 5 -i 1(每隔一秒) get name

5.海量数据插入

cat data.txt | redis-cli --pipe \#我自己试的时候，每行开头要空一格，不然报错

6.从redis-cli导出数据用逗号分隔

redis-cli --csv lrange list 0 -1 \#可用于一条命令导出，不能导出整个数据库

7.运行lua脚本

test.lua

return redis.call('get',KEYS\[1\])

redis-cli  --eval test.lua age

8.互动模式（大部分情况使用的都是这个）

redis-cli

xxxxx:xxx>

挑几个写

192.168.10.250:6379> 5 get age  \#在命令前面加数字，重复

"10"

192.168.10.250:6379> help set \#在命令前面加help可以得到命令的信息

SET key value \[EX seconds\] \[PX milliseconds\] \[NX|XX\]

summary: Set the string value of a key

since: 1.0.0

group: string

192.168.10.250:6379> help config

192.168.10.250:6379> help config set

CONFIG SET parameter value

summary: Set a configuration parameter to the given value

since: 2.0.0

group: server

xxx:xxx>clear  \#可以清空屏幕

9.查看客户端状态

好像挺有用的命令，可以看内存，客户端连接等信息

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --stat -i 5 \#默认每隔一秒，这里设置5秒

\------- data ------ --------------------- load -------------------- - child -

keys       mem      clients blocked requests            connections

105        810.11K  1       0       366 (+0)            32

105        810.11K  1       0       367 (+1)            32

105        810.11K  1       0       368 (+1)            32

105        810.11K  1       0       369 (+1)            32

10.bigkeys

可以看key的情况，觉得有用

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --bigkeys

\# Scanning the entire keyspace to find biggest keys as well as

\# average sizes per key type.  You can use -i 0.1 to sleep 0.1 sec

\# per 100 SCAN commands (not usually needed).

\[00.00%\] Biggest string found so far 'test17' with 6 bytes

\[00.00%\] Biggest zset   found so far 'zset' with 2 members

\[20.95%\] Biggest string found so far 'addr' with 8 bytes

\[89.52%\] Biggest list   found so far 'list' with 4 items

\-------- summary -------

Sampled 105 keys in the keyspace!

Total key length in bytes is 609 (avg len 5.80)

Biggest string found 'addr' has 8 bytes

Biggest   list found 'list' has 4 items

Biggest   zset found 'zset' has 2 members

103 strings with 604 bytes (98.10% of keys, avg size 5.86)

1 lists with 4 items (00.95% of keys, avg size 4.00)

0 sets with 0 members (00.00% of keys, avg size 0.00)

0 hashs with 0 fields (00.00% of keys, avg size 0.00)

1 zsets with 2 members (00.95% of keys, avg size 2.00)

11.一些可以用互动模式的

redis-cli --scan | head -10

redis-cli --scan  --pattern '\*-test'

redis-cli psubscribe '\*'

redis-cli monitor

12.检测延迟

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --latency \#每秒ping命令100次

min: 0, max: 2, avg: 0.13 (3484 samples)^C \#毫秒为单位

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --latency-history \#默认每隔15秒，可用-i设置

min: 0, max: 1, avg: 0.18 (1366 samples) -- 15.00 seconds range

min: 0, max: 1, avg: 0.06 (1365 samples) -- 15.01 seconds range

min: 0, max: 1, avg: 0.18 (863 samples)^C

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --latency-dist

\---------------------------------------------

. - \* \#          .01 .125 .25 .5 milliseconds

1,2,3,...,9      from 1 to 9     milliseconds

A,B,C,D,E        10,20,30,40,50  milliseconds

F,G,H,I,J        .1,.2,.3,.4,.5       seconds

K,L,M,N,O,P,Q,?  1,2,4,8,16,30,60,>60 seconds

From 0 to 100%:

\---------------------------------------------

。。。。。。。。\#有颜色的，可以看延迟的光谱

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --intrinsic-latency 5

Max latency so far: 1 microseconds.

Max latency so far: 55 microseconds.

Max latency so far: 1272 microseconds.

Max latency so far: 1451 microseconds.

Max latency so far: 2052 microseconds.

Max latency so far: 2475 microseconds.

72240980 total runs (avg latency: 0.0692 microseconds / 69.21 nanoseconds per run).

Worst run took 35759x longer than the average latency.

12.备份

redis-cli --rdb /tmp/dump.rdb

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --slave

SYNC with master, discarding 1650 bytes of bulk transfer...

SYNC done. Logging commands from master.

"PING"  \#复制的时候可以看到底复制了那些东西

13.根据内存和key来分配cache

\[root@master redis\]\# src/redis-cli -h 192.168.10.250 -a redis123456 --lru-test 1000000  \#(keys)

152500 Gets/sec | Hits: 35762 (23.45%) | Misses: 116738 (76.55%)

145250 Gets/sec | Hits: 76993 (53.01%) | Misses: 68257 (46.99%)

137000 Gets/sec | Hits: 93136 (67.98%) | Misses: 43864 (32.02%)

137000 Gets/sec | Hits: 104979 (76.63%) | Misses: 32021 (23.37%)

130000 Gets/sec | Hits: 106334 (81.80%) | Misses: 23666 (18.20%)

140250 Gets/sec | Hits: 119526 (85.22%) | Misses: 20724 (14.78%)

140500 Gets/sec | Hits: 123435 (87.85%) | Misses: 17065 (12.15%)

140750 Gets/sec | Hits: 126279 (89.72%) | Misses: 14471 (10.28%)

147750 Gets/sec | Hits: 134649 (91.13%) | Misses: 13101 (8.87%)

153500 Gets/sec | Hits: 141723 (92.33%) | Misses: 11777 (7.67%)

150000 Gets/sec | Hits: 139756 (93.17%) | Misses: 10244 (6.83

redis-cli启动时可以带的参数

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