Redis design and implementation (eight)-sort, slow query log, monitor

First, sort

Sort <key> Sorting keys for a numeric value

1. Alpha sorts the keys of the string type

2, Asc/desc

Redis Default Ascending sort ASC

Desc is the opposite of

3. By

Sort by weight.　

127.0.0.1:6379> Sadd usres"VIP" "Ordinary" "Visotor"(integer)3127.0.0.1:6379>Sort Usres Alpha1)"Ordinary"2)"VIP"3)"Visotor"127.0.0.1:6379> Mset Vip-sort1Ordinary-sort0Visotor-sort-1OK127.0.0.1:6379> Sort usres by * *Sort1)"Visotor"2)"Ordinary"3)"VIP"127.0.0.1:6379>

4, limit < from where to start >< marry a few >

127.0. 0.1:6379021"ordinary"2  "vip"127.0. 0.1:6379>

5. Get

Format after match with get pattern

127.0. 0.1:6379> sort usres alpha1"ordinary"2 " VIP " 3 " Visotor " 127.0. 0.1:6379>

127.0.0.1:6379>SetVip"SC"OK127.0.0.1:6379>SetOrdinary"KK"OK127.0.0.1:6379>SetVisotor"123EWDFRGV"OK127.0.0.1:6379> Sort Usres AlphaGet*1)"KK"2)"SC"3)"123EWDFRGV"127.0.0.1:6379>

6. Store sorting results

127.0.0.1:6379> Sort Usres AlphaGet*store names (integer)3127.0.0.1:6379> Lrange Names0-11)"KK"2)"SC"3)"123EWDFRGV"127.0.0.1:6379>

7. The above option execution order

A, sort: alpha, ASC, DESC, by

b, limiting the result set: Limit

C, get the foreign key: get

D. Save sort Result: Store

Second, slow query log

Set timeout milliseconds: Slowlog-slower-than

127.0. 0.1:6379set0
Ok

Set maximum number of records: Slowlog-max-len

127.0. 0.1:6379set3OK

View log: Slowlog get

127.0.0.1:6379>SetSc"Sun"OK127.0.0.1:6379>SetY"Yuan"OK127.0.0.1:6379>SetC"Ong"OK127.0.0.1:6379> SlowlogGet1)1) (integer)8//Log primary key   2) (integer)1520643052// timestamp   3) (integer)4// duration   4)1)"Set"//Command and Parameters      2)"C"      3)"Ong"   5)"127.0.0.1:34010"   6)""2)1) (integer)7   2) (integer)1520643032   3) (integer)3   4)1)"Set"      2)"y"      3)"Yuan"   5)"127.0.0.1:34010"   6)""3)1) (integer)6   2) (integer)1520643024   3) (integer)5   4)1)"Set"      2)"SC"      3)"Sun"   5)"127.0.0.1:34010"   6)""

Third, monitors monitor

Monitor client execution:

127.0. 0.1:6379> monitorok

To request the client, execute the command:

# redis-CLI127.0. 0.1:6379set"sc"OK127.0. 0.1:6379>

Monitor, monitor:

127.0.0.1:6379>Monitorok1520643372.474104[0 127.0.0.1:34012]"COMMAND"1520643389.095506[0 127.0.0.1:34012]"Set" "name" "SC"

Redis design and implementation (eight)-sort, slow query log, monitor