DZ

壹加壹

环境配置


0 V* s! E' E3 {+ I- d2 E- Mhttp://www.discuz.net/forum.php? ... amp;highlight=REDIS

壹加壹

http://www.discuz.net/forum.php? ... 648&highlight=REDIS
' r3 V4 Q: D& T- N- V6 ?无意间测试 单机状态 redis相当给力 测试1000请求/s  单纯的 get 和set 居然只用了 0.01秒 当时我惊呆了
0 r; n2 O# |0 K) k: b
# t' H/ B# x% y. X# C+ ahttp://www.discuz.net/forum.php? ... 731&highlight=REDIS
5 ~# L9 Y7 z8 |# d- ?) _/ D
6 J5 P0 |6 u# l7 J! m4 ~6 ^0 bhttps://wenku.baidu.com/view/265a5ce176a20029bc642d0b.html

3 G( p9 T- [( v9 B0 P＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝

1. 连接上 ssh
   
2. 
   3 C5 n! ]6 u& A8 P* h
3. 
   
4. 第一步:下载redis
   
5. # wget http://redis.googlecode.com/files/redis-2.6.10.tar.gz
   8 t$ y0 J+ D+ t4 Y9 O  D
6. # tar zxvf redis-2.6.10.tar.gz
   
7. # cd redis-2.6.10
   
8. # make
   
9. # make install  
   1 c! t* Y0 m. Q' M  |1 Y9 k
10. #cp redis.conf  /etc/ #复制配置文件到etc目录下面
    
11. 第二步：修改配置
    
12. #vi /etc/redis.conf
    
13. ######################下面是无措的配置文件 复制过去就成#########
    7 W! r' [: n; U4 U
14. # Redis configuration file example
    
15. 
    $ F$ ^+ q7 y1 N4 h; O7 K) {
16. # Note on units: when memory size is needed, it is possible to specify
    3 L2 o5 D8 Y$ L9 e5 ^
17. # it in the usual form of 1k 5GB 4M and so forth:
    
18. #
    
19. # 1k => 1000 bytes
    3 ~( V3 ]6 S" W" C5 S& I
20. # 1kb => 1024 bytes
    
21. # 1m => 1000000 bytes
    ) h: @1 D' q! t& }0 B' \
22. # 1mb => 1024*1024 bytes
    * V; j4 r# q9 z
23. # 1g => 1000000000 bytes
    
24. # 1gb => 1024*1024*1024 bytes
    
25. #
    
26. # units are case insensitive so 1GB 1Gb 1gB are all the same.
    
27. 
    . `3 M0 h0 q" _9 |8 i
28. # By default Redis does not run as a daemon. Use 'yes' if you need it.
    
29. # Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
    5 ?3 F+ X/ n1 r. V# j
30. daemonize yes
    ; X7 G' B* v% ?% @
31. 
    9 f( S7 D  C! u) h
32. # When running daemonized, Redis writes a pid file in /var/run/redis.pid by
    
33. # default. You can specify a custom pid file location here.
    " E0 N; ]- U( D6 z* i2 W
34. pidfile /var/run/redis.pid
    
35. 
    / V1 {4 z: D0 M9 m5 `) q6 z# Q% q; M. g
36. # Accept connections on the specified port, default is 6379.
    
37. # If port 0 is specified Redis will not listen on a TCP socket.
    
38. port 6379
    
39. 
    
40. # If you want you can bind a single interface, if the bind option is not
    1 ^) ]3 `; p9 `5 x: l
41. # specified all the interfaces will listen for incoming connections.
    
42. #
    + H( _" L6 }' i1 Z6 d
43. # bind 127.0.0.1
    
44. 
    ) j, {% t; ]$ A6 Y
45. # Specify the path for the unix socket that will be used to listen for
    # W7 {( S5 F( w" N2 `
46. # incoming connections. There is no default, so Redis will not listen
    
47. # on a unix socket when not specified.
    
48. #
    
49. # unixsocket /tmp/redis.sock
    
50. # unixsocketperm 755
    2 i/ t  Z# a2 q' U/ s3 T6 h- g
51. 
    
52. # Close the connection after a client is idle for N seconds (0 to disable)
    ; w4 D. U2 O5 z6 [4 r$ F  q
53. timeout 300
    
54. 
    
55. # TCP keepalive.
    
56. #
    
57. # If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence
    8 z& K4 L% J* w* ?' U
58. # of communication. This is useful for two reasons:
    % \2 U7 ]/ r( }3 t% |% M
59. #
    
60. # 1) Detect dead peers.
    / @! R4 G2 [' f( k! Z
61. # 2) Take the connection alive from the point of view of network
    " t: T! |5 X  H
62. #    equipment in the middle.
    ( f) x. X9 `! F9 {
63. #
    
64. # On Linux, the specified value (in seconds) is the period used to send ACKs.
    8 ^4 j/ a; C3 h: y
65. # Note that to close the connection the double of the time is needed.
    " L) Q) f4 t$ O! Y2 f& Q1 Z
66. # On other kernels the period depends on the kernel configuration.
    
67. #
    + U+ s! {5 z% c. j
68. # A reasonable value for this option is 60 seconds.
    
69. tcp-keepalive 0
    
70. 
    ! Q2 @; g  U1 \1 ^) F' ~0 v
71. # Specify the server verbosity level.
    + |2 I9 l1 R- Y* A, T0 p7 i
72. # This can be one of:
    1 B3 \; @& d" L6 L/ y( M- K
73. # debug (a lot of information, useful for development/testing)
    
74. # verbose (many rarely useful info, but not a mess like the debug level)
    + i. o" }- w- l
75. # notice (moderately verbose, what you want in production probably)
    
76. # warning (only very important / critical messages are logged)
    4 `0 Q: r# m/ ~1 }5 e
77. loglevel warning
    8 d) X- i( T4 F) l4 C$ w5 B
78. 
    
79. # Specify the log file name. Also 'stdout' can be used to force
    9 l& S; k) o3 W8 q" [# p
80. # Redis to log on the standard output. Note that if you use standard
    
81. # output for logging but daemonize, logs will be sent to /dev/null
    
82. logfile /var/log/redis.log
    
83. 
    
84. # To enable logging to the system logger, just set 'syslog-enabled' to yes,
    7 o( ]6 y( P* r
85. # and optionally update the other syslog parameters to suit your needs.
    
86. syslog-enabled yes
    
87. 
    
88. # Specify the syslog identity.
    1 v+ Q& U6 y, }2 p+ ~$ z$ N, A7 H
89. # syslog-ident redis
    
90. 
    
91. # Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
    
92. syslog-facility local0
    
93. 
    6 S- C2 x+ M, m
94. # Set the number of databases. The default database is DB 0, you can select
    ; u/ J' O  ?0 v( x
95. # a different one on a per-connection basis using SELECT <dbid> where
    
96. # dbid is a number between 0 and 'databases'-1
    
97. databases 16
    + z: d% c8 }$ s& }3 B
98. 
    
99. ################################ SNAPSHOTTING  #################################
    4 s7 v0 M  K7 W- `  q( [% ^8 p1 V
100. #
     2 i# f$ X. [5 }1 g" X
101. # Save the DB on disk:
     " V! W% u% W! a1 X; q
102. #
     7 g0 I0 s& j5 S# t
103. #   save <seconds> <changes>
     
104. #
     
105. #   Will save the DB if both the given number of seconds and the given
     - ?+ c  n8 `/ I) e
106. #   number of write operations against the DB occurred.
       e( e- k0 c  e2 E$ J8 g
107. #
     
108. #   In the example below the behaviour will be to save:
     $ a8 Y7 m9 h$ [2 H- T
109. #   after 900 sec (15 min) if at least 1 key changed
     : Z2 ^5 W  J$ k9 X
110. #   after 300 sec (5 min) if at least 10 keys changed
     
111. #   after 60 sec if at least 10000 keys changed
       ?9 J9 R, I$ y( b, p
112. #
     
113. #   Note: you can disable saving at all commenting all the "save" lines.
     
114. #
     . m6 t" I; A6 Y( Z; x8 u* I* b
115. #   It is also possible to remove all the previously configured save
     ; @3 g# u4 I, t4 C! ?: J
116. #   points by adding a save directive with a single empty string argument
     ) w2 y1 E6 j2 E# \6 U# E
117. #   like in the following example:
     9 O8 H( X/ Z8 Q
118. #
     " y2 v9 k, N1 Z. R* B) Z
119. #   save ""
     
120. 
     2 M) d4 g( X+ g
121. save 900 1
     * r  e; x  d( ?% ^" z! ?
122. save 300 10
     
123. save 60 10000
     ! }4 r* G) v7 ^& ]; B' y  M( Q% ?) w% E
124. 
     
125. # By default Redis will stop accepting writes if RDB snapshots are enabled
     $ f: q$ n: V+ S! S4 P
126. # (at least one save point) and the latest background save failed.
     
127. # This will make the user aware (in an hard way) that data is not persisting
     . y- v( B- K, v( [' d
128. # on disk properly, otherwise chances are that no one will notice and some
     5 H, ?* q4 G9 [0 H# j3 T
129. # distater will happen.
     & A* u* e. I( o) \
130. #
     / G* w" C( X8 r6 k
131. # If the background saving process will start working again Redis will
     ' c4 J( o5 W: U# u/ A) y
132. # automatically allow writes again.
     
133. #
     % m3 z+ u! r% {( p7 k* N
134. # However if you have setup your proper monitoring of the Redis server
     ; I  V, ~0 N! W3 k- X. W0 r
135. # and persistence, you may want to disable this feature so that Redis will
     
136. # continue to work as usually even if there are problems with disk,
     
137. # permissions, and so forth.
     
138. stop-writes-on-bgsave-error yes
     
139. 
     9 [: Y. N) B3 h) K/ m* P
140. # Compress string objects using LZF when dump .rdb databases?
     
141. # For default that's set to 'yes' as it's almost always a win.
     / ], _+ W" Z$ J1 P4 D& M- Y+ C
142. # If you want to save some CPU in the saving child set it to 'no' but
     1 M6 q2 t$ w2 V( ^' L7 v
143. # the dataset will likely be bigger if you have compressible values or keys.
     7 D' G& o  a8 H$ V
144. rdbcompression yes
     
145. 
     - p- N0 C: J& g
146. # Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
     " J+ U2 a% [$ h( P6 a
147. # This makes the format more resistant to corruption but there is a performance
     
148. # hit to pay (around 10%) when saving and loading RDB files, so you can disable it
     ( Q6 K: A# X" _; X4 N$ }- A
149. # for maximum performances.
     
150. #
     1 a7 P9 _7 N; x( r
151. # RDB files created with checksum disabled have a checksum of zero that will
     
152. # tell the loading code to skip the check.
     
153. rdbchecksum yes
     
154. 
     3 }5 s, h' e$ t# @. Q
155. # The filename where to dump the DB
     # S4 I7 L3 d& O
156. dbfilename dump.rdb
     
157. 
     
158. # The working directory.
     : k9 c3 F# C4 A2 s% i2 R
159. #
     
160. # The DB will be written inside this directory, with the filename specified
     
161. # above using the 'dbfilename' configuration directive.
     9 m1 }* u& K) a6 m# ~, y- [' U
162. #
     
163. # The Append Only File will also be created inside this directory.
     
164. #
     
165. # Note that you must specify a directory here, not a file name.
     ; ^8 s9 B0 c& d" ~' H
166. dir /var/db/redis
     " P5 @0 P9 Y* E
167. 
     
168. ################################# REPLICATION #################################
     
169. 
     
170. # Master-Slave replication. Use slaveof to make a Redis instance a copy of
     
171. # another Redis server. Note that the configuration is local to the slave
     4 f3 C6 k5 O/ S, y1 A9 x2 `6 Y1 s; f
172. # so for example it is possible to configure the slave to save the DB with a
     3 ?4 ~' X2 W2 f- C& X+ t
173. # different interval, or to listen to another port, and so on.
     & a, d: p8 |8 K& f9 L9 h* t0 `
174. #
     * H7 l' N# q& Z  U% l: v
175. # slaveof <masterip> <masterport>
     , a  C+ A: z/ s4 u
176. 
     
177. # If the master is password protected (using the "requirepass" configuration
     ; \; {8 W7 I1 b, b+ s
178. # directive below) it is possible to tell the slave to authenticate before
     
179. # starting the replication synchronization process, otherwise the master will
     $ P# o. G6 ?1 {$ Z; d
180. # refuse the slave request.
     ' {, F5 r. p& m% U1 v7 G2 }
181. #
     4 I0 f, F: H* s8 v( p
182. # masterauth <master-password>
     - S: I2 ^+ n$ I7 o$ Q
183. 
     
184. # When a slave loses its connection with the master, or when the replication
     7 _* E2 A5 v5 |; l+ w
185. # is still in progress, the slave can act in two different ways:
     
186. #
     ; `" x0 e+ D, s3 ^$ g
187. # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
     ) U+ X/ }9 [. [: v
188. #    still reply to client requests, possibly with out of date data, or the
     
189. #    data set may just be empty if this is the first synchronization.
     6 m4 X% N. b5 h
190. #
     
191. # 2) if slave-serve-stale data is set to 'no' the slave will reply with
     
192. #    an error "SYNC with master in progress" to all the kind of commands
     
193. #    but to INFO and SLAVEOF.
     % |- ?1 @6 n5 w: f2 K. E7 A
194. #
     * V' Y$ n0 L. U, m, V, k
195. slave-serve-stale-data yes
     
196. 
     + {3 {" Y- D& A8 b
197. # You can configure a slave instance to accept writes or not. Writing against
     
198. # a slave instance may be useful to store some ephemeral data (because data
     ( h* G; w: F: J& `/ J
199. # written on a slave will be easily deleted after resync with the master) but
     
200. # may also cause problems if clients are writing to it because of a
     
201. # misconfiguration.
     7 F1 Y& u( X3 O5 d0 J9 @
202. #
     ' K; s, S, Y# a" J
203. # Since Redis 2.6 by default slaves are read-only.
     
204. #
     
205. # Note: read only slaves are not designed to be exposed to untrusted clients
     
206. # on the internet. It's just a protection layer against misuse of the instance.
     
207. # Still a read only slave exports by default all the administrative commands
     + q. n! c8 S$ k; K/ L
208. # such as CONFIG, DEBUG, and so forth. To a limited extend you can improve
     - U3 L8 x$ @! s& o& N6 _8 J5 c
209. # security of read only slaves using 'rename-command' to shadow all the
     . o1 _* ~: Q6 h- K8 s5 P: v
210. # administrative / dangerous commands.
     7 K* r& [& P9 U/ q5 S; i% c
211. slave-read-only yes
     
212. 
     
213. # Slaves send PINGs to server in a predefined interval. It's possible to change
     
214. # this interval with the repl_ping_slave_period option. The default value is 10
     
215. # seconds.
     
216. #
     5 {. m! F  Y  ?/ S$ q
217. # repl-ping-slave-period 10
     4 W4 P( ?  _$ m6 K
218. 
     1 j5 ^; r/ }) p  G# i
219. # The following option sets a timeout for both Bulk transfer I/O timeout and
     
220. # master data or ping response timeout. The default value is 60 seconds.
     
221. #
     / D) J: m. E  a" J8 [
222. # It is important to make sure that this value is greater than the value
     
223. # specified for repl-ping-slave-period otherwise a timeout will be detected
     1 G6 ]* J' ^9 o) q! R
224. # every time there is low traffic between the master and the slave.
     
225. #
     & p: z. p5 @# A) H
226. # repl-timeout 60
     ) X- Y- f2 ~- ]4 j$ k
227. 
     
228. # Disable TCP_NODELAY on the slave socket after SYNC?
     
229. #
     
230. # If you select "yes" Redis will use a smaller number of TCP packets and
     
231. # less bandwidth to send data to slaves. But this can add a delay for
     ! Q8 e' o7 q4 }' q7 ^
232. # the data to appear on the slave side, up to 40 milliseconds with
     " j- C) J- }8 R( E5 I2 I. w; b% B! h
233. # Linux kernels using a default configuration.
     
234. #
     3 e& K& w) d! d, B4 e. F- v; F
235. # If you select "no" the delay for data to appear on the slave side will
     
236. # be reduced but more bandwidth will be used for replication.
     
237. #
     
238. # By default we optimize for low latency, but in very high traffic conditions
     
239. # or when the master and slaves are many hops away, turning this to "yes" may
     
240. # be a good idea.
     
241. repl-disable-tcp-nodelay no
     7 s) `* x8 c$ v$ x+ u
242. 
     
243. # The slave priority is an integer number published by Redis in the INFO output.
     8 p% O- V5 y9 b. S
244. # It is used by Redis Sentinel in order to select a slave to promote into a
     % O$ Z6 K  h5 U6 I4 g  Z
245. # master if the master is no longer working correctly.
     
246. #
     
247. # A slave with a low priority number is considered better for promotion, so
     ' @$ m8 X: d: }5 Q3 r# i3 W$ w5 t
248. # for instance if there are three slaves with priority 10, 100, 25 Sentinel will
     
249. # pick the one wtih priority 10, that is the lowest.
     . b. K, _* F* t0 t6 ?/ J
250. #
     : m* p/ p4 r. F! n
251. # However a special priority of 0 marks the slave as not able to perform the
     ( \! h: Q8 r, Z% Z8 N  j
252. # role of master, so a slave with priority of 0 will never be selected by
     
253. # Redis Sentinel for promotion.
     + n; M# V# }; N9 `$ ^( s
254. #
     , j, P6 |) x& z
255. # By default the priority is 100.
     
256. slave-priority 100
     - o0 o2 K) b9 M0 J* h
257. 
     
258. ################################## SECURITY ###################################
     2 y) y$ I0 \0 q
259. 
     
260. # Require clients to issue AUTH <ASSWORD> before processing any other
     6 w1 w" m- J+ r) g. K7 J4 ?5 a
261. # commands.  This might be useful in environments in which you do not trust
     
262. # others with access to the host running redis-server.
     $ L% e( Z. }1 F8 y
263. #
     
264. # This should stay commented out for backward compatibility and because most
     
265. # people do not need auth (e.g. they run their own servers).
     9 V6 G0 }* ~: |
266. #
     
267. # Warning: since Redis is pretty fast an outside user can try up to
     
268. # 150k passwords per second against a good box. This means that you should
     ) L: ~0 c, x$ j$ x- N) ?  r/ m
269. # use a very strong password otherwise it will be very easy to break.
     
270. #
     
271. # requirepass foobared
     ! b6 R- r# M( A) Z1 L7 H% H
272. 
     
273. # Command renaming.
     
274. #
     ! W& C- T' |6 K( B% ]" \: I$ l
275. # It is possible to change the name of dangerous commands in a shared
     
276. # environment. For instance the CONFIG command may be renamed into something
     $ Q- `' Y+ N$ f
277. # hard to guess so that it will still be available for internal-use tools
     . a+ S4 [! o# f% F& F; |
278. # but not available for general clients.
     
279. #
     $ G/ P. t1 p( C- Z# E; E2 y6 k
280. # Example:
     % V) E  z9 t8 u( H4 A0 p
281. #
     
282. # rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
     
283. #
     
284. # It is also possible to completely kill a command by renaming it into
     8 |7 y  _& c; X7 t& q2 ~
285. # an empty string:
     4 {$ e( L8 ~( s! \5 n9 v
286. #
       E" i. L& O  ]8 b) I! U5 S
287. # rename-command CONFIG ""
     5 I& u$ `% J4 o
288. 
     
289. ################################### LIMITS ####################################
     ) v8 s) b* \) l' x9 P0 U, n! v* G# U
290. 
     
291. # Set the max number of connected clients at the same time. By default
     ' [5 a/ z4 w5 H& @" T1 v
292. # this limit is set to 10000 clients, however if the Redis server is not
     0 }% g$ j( Y, G- J+ G. C3 U
293. # able to configure the process file limit to allow for the specified limit
     1 h' t5 u( n" R9 o3 A
294. # the max number of allowed clients is set to the current file limit
     
295. # minus 32 (as Redis reserves a few file descriptors for internal uses).
     
296. #
     . h: p, Y: D- K! A  Q0 Y4 [9 O
297. # Once the limit is reached Redis will close all the new connections sending
     ( ^& c5 U4 B" E1 N7 ^) O
298. # an error 'max number of clients reached'.
     0 O; K2 {- E; j! Y9 v
299. #
     1 y4 _  w4 y" n3 T5 |
300. maxclients 500
     
301. 
     
302. # Don't use more memory than the specified amount of bytes.
     , S; x7 R/ ]- h
303. # When the memory limit is reached Redis will try to remove keys
     
304. # accordingly to the eviction policy selected (see maxmemmory-policy).
     
305. #
     
306. # If Redis can't remove keys according to the policy, or if the policy is
     & K7 W$ j7 C7 M. U) X  b5 s
307. # set to 'noeviction', Redis will start to reply with errors to commands
     
308. # that would use more memory, like SET, LPUSH, and so on, and will continue
     , Q" }$ [1 s) T. f* Q
309. # to reply to read-only commands like GET.
     
310. #
     
311. # This option is usually useful when using Redis as an LRU cache, or to set
     1 S  _& C. |, l& ^8 J3 i- q0 h
312. # an hard memory limit for an instance (using the 'noeviction' policy).
     
313. #
     
314. # WARNING: If you have slaves attached to an instance with maxmemory on,
     
315. # the size of the output buffers needed to feed the slaves are subtracted
     
316. # from the used memory count, so that network problems / resyncs will
     
317. # not trigger a loop where keys are evicted, and in turn the output
     
318. # buffer of slaves is full with DELs of keys evicted triggering the deletion
     
319. # of more keys, and so forth until the database is completely emptied.
     " ~( z# v: Z% k' d8 T1 k
320. #
     . Z. i" c; _6 I* a
321. # In short... if you have slaves attached it is suggested that you set a lower
     6 J* ~) j# _; q, b# |
322. # limit for maxmemory so that there is some free RAM on the system for slave
     
323. # output buffers (but this is not needed if the policy is 'noeviction').
     ; @6 r) Y, ~2 Z; x& J* t
324. #
     : n; E$ x0 y+ d0 Q2 }7 Q) [
325. maxmemory 128000000
     
326. 
     - Y9 k1 t7 E4 Q
327. # MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
     5 C: r1 w9 m0 K- s: v! k* s5 w
328. # is reached. You can select among five behaviors:
     
329. #
     4 o2 `( L" _, A+ n/ k! V
330. # volatile-lru -> remove the key with an expire set using an LRU algorithm
     
331. # allkeys-lru -> remove any key accordingly to the LRU algorithm
     
332. # volatile-random -> remove a random key with an expire set
     ; R6 S6 L' g& S  `  n  n
333. # allkeys-random -> remove a random key, any key
     
334. # volatile-ttl -> remove the key with the nearest expire time (minor TTL)
     
335. # noeviction -> don't expire at all, just return an error on write operations
     " y) I0 v- @  Z' f  v
336. #
     
337. # Note: with any of the above policies, Redis will return an error on write
     
338. #       operations, when there are not suitable keys for eviction.
     # b5 A% F, D& O
339. #
     / U  `! N1 _; }; P5 z
340. #       At the date of writing this commands are: set setnx setex append
     4 |0 j; X1 O& g0 ^6 V+ [- }- s" _
341. #       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
     & d4 ^, b1 B2 {( w! t
342. #       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
     
343. #       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
     : G' O. @% T/ `
344. #       getset mset msetnx exec sort
     7 w& y& Q; c) E: k5 z; Z* p
345. #
     1 s& i/ s8 U& m! Y( K9 a4 m
346. # The default is:
     ) l& ?4 r; U% x+ H# Y9 X. A
347. #
     
348. # maxmemory-policy volatile-lru
     
349. 
     , r- t# e9 o2 {2 i8 m) {
350. # LRU and minimal TTL algorithms are not precise algorithms but approximated
     
351. # algorithms (in order to save memory), so you can select as well the sample
     ; ^# V( {, m7 X7 I5 L( N9 m# i
352. # size to check. For instance for default Redis will check three keys and
     
353. # pick the one that was used less recently, you can change the sample size
     
354. # using the following configuration directive.
     
355. #
     6 x) T: \8 A2 Y+ k; }# u; M$ q
356. # maxmemory-samples 3
     . t- H+ i, k  b' l) ]6 a1 _
357. 
     ( L2 Z! P0 V! h& Q7 s: w
358. ############################## APPEND ONLY MODE ###############################
     
359. 
     3 \$ ]+ r  O3 Z' L- F# i
360. # By default Redis asynchronously dumps the dataset on disk. This mode is
     
361. # good enough in many applications, but an issue with the Redis process or
     
362. # a power outage may result into a few minutes of writes lost (depending on
     
363. # the configured save points).
     - d. Q, v, W1 Y0 K# Y7 e+ v
364. #
     4 M7 q) Z, D. E: F- N* c( h  H- B9 E
365. # The Append Only File is an alternative persistence mode that provides
     6 e2 B* f9 g; Z* I" s% ]
366. # much better durability. For instance using the default data fsync policy
     * F  h; C: |# o) L) }- L
367. # (see later in the config file) Redis can lose just one second of writes in a
     5 k* n! Y0 I1 A5 ~0 L) ?
368. # dramatic event like a server power outage, or a single write if something
     
369. # wrong with the Redis process itself happens, but the operating system is
     
370. # still running correctly.
     
371. #
       E& Z0 l5 [+ {( `# ?. N
372. # AOF and RDB persistence can be enabled at the same time without problems.
     ; i- N9 D$ n4 n, f0 M$ ~* `
373. # If the AOF is enabled on startup Redis will load the AOF, that is the file
     2 L* t% {4 D% @# j/ z8 l
374. # with the better durability guarantees.
     
375. #
     
376. # Please check http://redis.io/topics/persistence for more information.
     * e2 V0 f0 Q  H8 |
377. 
     ! g& C* R7 i4 U, z) P, d
378. appendonly no
     9 i) R; p9 L6 |5 ]6 P+ _
379. 
     + B4 Q& C4 f# {; j
380. # The name of the append only file (default: "appendonly.aof")
     0 D1 h# }3 Y% }( c0 U7 Z% W
381. # appendfilename appendonly.aof
     
382. 
     : o- x) z1 \0 G
383. # The fsync() call tells the Operating System to actually write data on disk
     
384. # instead to wait for more data in the output buffer. Some OS will really flush
     : r, M3 M& o) G2 |* F8 g
385. # data on disk, some other OS will just try to do it ASAP.
     
386. #
     
387. # Redis supports three different modes:
     " i! u. T& P' ]7 |9 y  W% T# G
388. #
     
389. # no: don't fsync, just let the OS flush the data when it wants. Faster.
     9 Q5 X, u+ `6 v+ k+ P6 g0 ?. {
390. # always: fsync after every write to the append only log . Slow, Safest.
     $ F) P) O+ p7 f/ b/ {6 v$ q5 l
391. # everysec: fsync only one time every second. Compromise.
     
392. #
     
393. # The default is "everysec", as that's usually the right compromise between
     ; e7 v  ^0 q8 O4 g: C- G! v
394. # speed and data safety. It's up to you to understand if you can relax this to
     
395. # "no" that will let the operating system flush the output buffer when
     
396. # it wants, for better performances (but if you can live with the idea of
     7 t; q9 F! F8 D: w6 F
397. # some data loss consider the default persistence mode that's snapshotting),
     
398. # or on the contrary, use "always" that's very slow but a bit safer than
     , r- q( h9 @8 i' @
399. # everysec.
     
400. #
     
401. # More details please check the following article:
     
402. # http://antirez.com/post/redis-persistence-demystified.html
     ; X) K6 B! r0 @( n
403. #
     ( F. D( X) o* J$ S+ \+ ^1 b: I
404. # If unsure, use "everysec".
     2 d! o& s% f0 Z" J" j
405. 
     ; d7 v1 Z* [. j& c& \
406. # appendfsync always
     
407. appendfsync everysec
     
408. # appendfsync no
     
409. 
     
410. # When the AOF fsync policy is set to always or everysec, and a background
     
411. # saving process (a background save or AOF log background rewriting) is
     
412. # performing a lot of I/O against the disk, in some Linux configurations
     # E0 c3 ?& S  I- ~" |9 v
413. # Redis may block too long on the fsync() call. Note that there is no fix for
     . f8 R6 ?2 x, m" i  X
414. # this currently, as even performing fsync in a different thread will block
     : n) `1 T1 c# W/ v( c" h
415. # our synchronous write(2) call.
     
416. #
       L; X; T% a. ^' ^6 I
417. # In order to mitigate this problem it's possible to use the following option
     
418. # that will prevent fsync() from being called in the main process while a
     
419. # BGSAVE or BGREWRITEAOF is in progress.
     
420. #
     , L/ z% u4 W9 U( n2 B
421. # This means that while another child is saving, the durability of Redis is
     $ f% K8 ?0 P( \) N
422. # the same as "appendfsync none". In practical terms, this means that it is
     
423. # possible to lose up to 30 seconds of log in the worst scenario (with the
     
424. # default Linux settings).
     
425. #
     ' h1 n! k, C; A9 o0 i
426. # If you have latency problems turn this to "yes". Otherwise leave it as
     
427. # "no" that is the safest pick from the point of view of durability.
     ! S4 {7 G4 f$ v, @! b$ v
428. no-appendfsync-on-rewrite no
     
429. 
     
430. # Automatic rewrite of the append only file.
     
431. # Redis is able to automatically rewrite the log file implicitly calling
     + R4 i% f& P; P' c: o: V4 y3 p
432. # BGREWRITEAOF when the AOF log size grows by the specified percentage.
     
433. #
     - D: w- `* m1 }
434. # This is how it works: Redis remembers the size of the AOF file after the
     
435. # latest rewrite (if no rewrite has happened since the restart, the size of
     7 f( a; {: D# w" B; ^, p
436. # the AOF at startup is used).
       P6 R. z9 }" x) l) O) U: K
437. #
     , D$ j% E9 W7 R! U- j
438. # This base size is compared to the current size. If the current size is
     
439. # bigger than the specified percentage, the rewrite is triggered. Also
       T& z1 H- |4 B4 A
440. # you need to specify a minimal size for the AOF file to be rewritten, this
     
441. # is useful to avoid rewriting the AOF file even if the percentage increase
     
442. # is reached but it is still pretty small.
     
443. #
     
444. # Specify a percentage of zero in order to disable the automatic AOF
     
445. # rewrite feature.
     
446. 
     ( Z( }* Z, Y# e! N$ h
447. auto-aof-rewrite-percentage 100
     0 `) }! {4 Q% L* P
448. auto-aof-rewrite-min-size 64mb
     4 C, d& b3 J) P* w0 ^
449. 
     / Y; c& g* q; b4 [! I0 @
450. ################################ LUA SCRIPTING  ###############################
       A4 x4 Z! H! @* ~3 A4 E; R' d. h
451. 
     
452. # Max execution time of a Lua script in milliseconds.
     
453. #
     
454. # If the maximum execution time is reached Redis will log that a script is
     
455. # still in execution after the maximum allowed time and will start to
     
456. # reply to queries with an error.
     
457. #
     5 c* I: }1 W/ W
458. # When a long running script exceed the maximum execution time only the
     8 Q0 R" o) W" V* x) T) P) h
459. # SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be
     9 n" m4 D: w$ i
460. # used to stop a script that did not yet called write commands. The second
     
461. # is the only way to shut down the server in the case a write commands was
     : _1 T* G5 p. p- C" T
462. # already issue by the script but the user don't want to wait for the natural
     
463. # termination of the script.
     2 [1 Q- b" [+ V4 L
464. #
     ( ^/ F- D1 S9 x2 {" r
465. # Set it to 0 or a negative value for unlimited execution without warnings.
     
466. lua-time-limit 5000
     
467. 
     
468. ################################## SLOW LOG ###################################
     
469. 
     
470. # The Redis Slow Log is a system to log queries that exceeded a specified
     
471. # execution time. The execution time does not include the I/O operations
     $ K3 z  e7 Q% c; U/ ^8 R
472. # like talking with the client, sending the reply and so forth,
     7 Q- H, j! W5 F9 B2 k
473. # but just the time needed to actually execute the command (this is the only
     - H! U( |* X- J/ X0 ^" e
474. # stage of command execution where the thread is blocked and can not serve
     
475. # other requests in the meantime).
     
476. #
     * n, M3 b6 g# ]" b" o7 }
477. # You can configure the slow log with two parameters: one tells Redis
     
478. # what is the execution time, in microseconds, to exceed in order for the
     1 G7 y2 W. d$ W* U6 C
479. # command to get logged, and the other parameter is the length of the
     , G' d0 }  e8 y8 {- L' b) f( Y- |! g
480. # slow log. When a new command is logged the oldest one is removed from the
     
481. # queue of logged commands.
     
482. 
     + |0 [, V& X: u: p" j, p# F! K
483. # The following time is expressed in microseconds, so 1000000 is equivalent
     " T6 z0 f) r( r. s7 `/ o5 Q* s
484. # to one second. Note that a negative number disables the slow log, while
     
485. # a value of zero forces the logging of every command.
     
486. slowlog-log-slower-than 10000
     
487. 
     
488. # There is no limit to this length. Just be aware that it will consume memory.
     
489. # You can reclaim memory used by the slow log with SLOWLOG RESET.
     
490. slowlog-max-len 128
     
491. 
     
492. ############################### ADVANCED CONFIG ###############################
     
493. 
     
494. # Hashes are encoded using a memory efficient data structure when they have a
     % ]; L( k" C6 C9 r6 E6 k
495. # small number of entries, and the biggest entry does not exceed a given
     
496. # threshold. These thresholds can be configured using the following directives.
       z& M2 U4 M* O
497. hash-max-ziplist-entries 512
     * C4 R# \: ?% Q0 l8 J" d! u# G; Y
498. hash-max-ziplist-value 64
     
499. 
     3 K1 U! W5 n* @1 c
500. # Similarly to hashes, small lists are also encoded in a special way in order
     8 I. H+ a, b* }
501. # to save a lot of space. The special representation is only used when
     5 a) I: [9 y9 f5 X
502. # you are under the following limits:
     
503. list-max-ziplist-entries 512
     
504. list-max-ziplist-value 64
     
505. 
     
506. # Sets have a special encoding in just one case: when a set is composed
     
507. # of just strings that happens to be integers in radix 10 in the range
     6 l2 F( _' z& [
508. # of 64 bit signed integers.
     3 y" o. W+ w4 A4 X, p
509. # The following configuration setting sets the limit in the size of the
     ( a6 ^) @9 r7 t5 d/ q* j9 N
510. # set in order to use this special memory saving encoding.
     , k( B& T9 q+ j1 P* ^6 g- t8 b
511. set-max-intset-entries 512
     # w/ h' H$ f, f4 I" U1 V
512. 
     
513. # Similarly to hashes and lists, sorted sets are also specially encoded in
     ; W% H! ?, B/ I9 V' f* C5 b
514. # order to save a lot of space. This encoding is only used when the length and
     ( \" X$ r; E: p5 _; p' r
515. # elements of a sorted set are below the following limits:
     6 D. ]/ U  E) ^5 F. p+ N
516. zset-max-ziplist-entries 128
     
517. zset-max-ziplist-value 64
     
518. 
     
519. # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
     1 i2 e. [0 V. ?2 }8 _: t& M& V
520. # order to help rehashing the main Redis hash table (the one mapping top-level
     
521. # keys to values). The hash table implementation Redis uses (see dict.c)
     
522. # performs a lazy rehashing: the more operation you run into an hash table
     ) Y" ?7 ?. O% @) v$ J) D% r% U
523. # that is rehashing, the more rehashing "steps" are performed, so if the
     4 L$ q9 f6 _- D
524. # server is idle the rehashing is never complete and some more memory is used
     $ E  m4 k( g4 V( \
525. # by the hash table.
     ! B9 i1 C$ z( j0 `5 A
526. #
     
527. # The default is to use this millisecond 10 times every second in order to
     / h* |+ M: D( l
528. # active rehashing the main dictionaries, freeing memory when possible.
     . K% a+ [/ f- G" B( F0 _- n
529. #
     
530. # If unsure:
     6 C! w# h% W2 ^( N/ h* M1 k
531. # use "activerehashing no" if you have hard latency requirements and it is
     2 R0 r, |/ H/ [/ P/ c- S
532. # not a good thing in your environment that Redis can reply form time to time
     8 B  K5 p5 }$ O
533. # to queries with 2 milliseconds delay.
     
534. #
     3 j# q- Z( D4 A" a
535. # use "activerehashing yes" if you don't have such hard requirements but
     ) q2 E# b- L3 u; p9 w( X
536. # want to free memory asap when possible.
     : ?' t8 F# d/ D0 y6 R7 M
537. activerehashing yes
     / V# [3 a- I4 n8 K' `
538. 
     
539. # The client output buffer limits can be used to force disconnection of clients
     : W4 `: W/ }, c
540. # that are not reading data from the server fast enough for some reason (a
     
541. # common reason is that a Pub/Sub client can't consume messages as fast as the
     
542. # publisher can produce them).
     
543. #
     % c  R" k# u$ o7 W  b
544. # The limit can be set differently for the three different classes of clients:
     & r6 M3 v; C5 i
545. #
     
546. # normal -> normal clients
     5 R: M# P8 |: F% C( a& `
547. # slave  -> slave clients and MONITOR clients
     2 j. |& R# u% a6 g. r
548. # pubsub -> clients subcribed to at least one pubsub channel or pattern
     
549. #
     
550. # The syntax of every client-output-buffer-limit directive is the following:
     # g/ I- Q( X* N1 H; x& V! ]
551. #
     
552. # client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
     4 {) j! U0 J$ I' e
553. #
     2 H/ e- z3 a) H: b& f
554. # A client is immediately disconnected once the hard limit is reached, or if
     
555. # the soft limit is reached and remains reached for the specified number of
     9 I2 `4 `( k) ]9 W5 u8 M2 Q
556. # seconds (continuously).
     
557. # So for instance if the hard limit is 32 megabytes and the soft limit is
     
558. # 16 megabytes / 10 seconds, the client will get disconnected immediately
     6 }, r9 V2 k- o. |# h( N
559. # if the size of the output buffers reach 32 megabytes, but will also get
     9 {* w: J1 o7 s  N. S1 T* \6 {
560. # disconnected if the client reaches 16 megabytes and continuously overcomes
     
561. # the limit for 10 seconds.
     7 C$ Y! H# Z4 Y% X8 j4 r
562. #
     : t) l3 Y6 k* ?" B3 Z
563. # By default normal clients are not limited because they don't receive data
     ; C9 `6 @' `$ U& a! T+ R
564. # without asking (in a push way), but just after a request, so only
     
565. # asynchronous clients may create a scenario where data is requested faster
     
566. # than it can read.
     
567. #
     8 ~6 k5 _6 e$ w8 d2 b/ z, O
568. # Instead there is a default limit for pubsub and slave clients, since
     ; o; R9 R! w+ l* ~9 x+ L
569. # subscribers and slaves receive data in a push fashion.
     
570. #
     
571. # Both the hard or the soft limit can be disabled by setting them to zero.
     , k% D( @$ v* L) L
572. client-output-buffer-limit normal 0 0 0
     . }2 `  i: X1 Y) q
573. client-output-buffer-limit slave 256mb 64mb 60
     ' N* D/ T8 k( ]* r, @! n! M
574. client-output-buffer-limit pubsub 32mb 8mb 60
     
575. 
     
576. ################################## INCLUDES ###################################
     
577. 
     * s6 x; n/ v4 x9 C, j2 U
578. # Include one or more other config files here.  This is useful if you
     ' B6 `3 l0 s6 [$ q0 {
579. # have a standard template that goes to all Redis server but also need
     . N' s/ v5 ]6 D! _4 w: l5 {8 K
580. # to customize a few per-server settings.  Include files can include
     & |. q+ f. ?# f# Q. S" x
581. # other files, so use this wisely.
     
582. #
     
583. # include /path/to/local.conf
     
584. # include /path/to/other.conf        
     / a! D! m* V. a, h  L4 a( _
585. ##########################配置文件结束################################
     2 s  U+ u' L( D  N5 _: c, Z
586. 第三步：启动进程
     6 x; T% G& }& t; t$ Y) l; B
587. #redis-server /etc/redis.conf
     " R2 {" L8 e$ `  ~
588. 查看进程有没有成功启动
     
589. #ps -ef | grep redis
     
590. 测试输入一个键值
     ; h# q) K5 P; c. {3 r/ Y
591. #redis-cli set test "testredis"
     $ Z3 ~! T1 j; A. `: @$ I
592. 获取键值
     9 U# r, H9 W$ z3 I, I: l, N" L) S* q9 S( d
593. #redis-cli get test
     0 r$ H  k" H* b: p5 z$ ]0 x( ~
594. 
     
595. 
     
596. 第四步:关闭redis  (这个是更改配置文件后 正常的重启方式  不重新加载redis配置跳过)
     
597. # redis-cli shutdown      //关闭所有   
     
598. 关闭某个端口上的redis   
     , C) {8 I+ g! o* M+ d6 ?/ A
599. # redis-cli -p 6397 shutdown  //关闭6397端口的redis  
     
600. 说明：关闭以后缓存数据会自动dump到硬盘上，硬盘地址见redis.conf中的dbfilename  dump.rdb  
     
601. 
     
602. 
     1 q+ x  C: v7 T
603. 第5步:php扩展安装
     
604. phpredis PHP扩展下载地址
       E0 J/ e6 J% E  X, F3 w
605. https://github.com/nicolasff/phpredis/tree/2.2.2
     
606. 选择最新版本下载zip
     
607. 
     9 P0 O4 [: x& |) l, m& B& J
608. 然后自己上传zip  用unzip解压到当前目录 unzip 文件名
     , X: ^6 i3 ?* S
609. 
     
610. # cd owlient-phpredis-90ecd17/   #打开解压后的文件夹里面  这个解压后的目录 要是不知道 可以输入 "dir" 查看
     , ?9 |" R" |- S2 S& c
611. # /www/nginx_php-5.2.17/bin
     
612. # ./configure --with-php-config=/www/nginx_php-5.2.17/bin/php-config
     
613. #make
     + w0 }7 g( R; j/ Q+ e
614. #make install   #记录产生的redis.so路径
     
615. 
     ; }0 ~( W# z) Y+ C, |- j# s
616. 修改php.ini文件
     5 p0 m+ o% S+ V4 v+ f. [
617. 在php.ini中添加如下一行：
     
618. extension=/?/redis.so  #是刚刚记录的产生redis.so的路 写在 ?那
     ( m) U, R& r& m! V. u
619. 重启 使之生效：
     - S5 U- k& i1 Q' ]
620. /usr/local/php/sbin/php-fpm reload
     $ J+ m$ V2 g7 e% I+ O$ h; m2 ]$ b
621. /usr/local/nginx/sbin/nginx -s reload
     
622. 
     / ?* _9 T/ K; m$ G  a& C+ y6 e
623. 将 Redis 作为 Linux 服务随机启动
     5 ^6 ^2 Z& c' G( Y8 i
624. vi /etc/rc.local, 加入代码：
     
625. /root/redis-2.6.10/src/redis-serve  #路径看情况修改
     
626. 
     
627. redis-cli -h localhost -p 6379 info  #命令要在redis目录下面执行
     
628. 提供host为localhost，端口为6379，redis服务的统计信息
     3 k1 ~! @  S+ m  P7 x  ~
629. 
     
630. 
     
631. 就这样你的web服务器就支持redis了 记得要在 给dz 的配置文件 加上12.0.0.1哦
     ) g+ @& b0 Q& x4 c
632. dz配置文件在 config目录下面的 config_global.php
     
633. $_config['memory']['redis']['server'] = '127.0.0.1';
     
634. $_config['memory']['redis']['port'] = 6379;
     
635. $_config['memory']['redis']['pconnect'] = 1;
     
636. $_config['memory']['redis']['timeout'] = '0';
     " H  y: @. O% n0 \, a
637. $_config['memory']['redis']['serializer'] = 1;
     6 g" T3 h! E2 n) i' z& V

复制代码