DZ

壹加壹

环境配置

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5 i4 k. r5 S. W) z! ?! Z4 bhttp://www.discuz.net/forum.php? ... amp;highlight=REDIS

壹加壹

http://www.discuz.net/forum.php? ... 648&highlight=REDIS
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

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https://wenku.baidu.com/view/265a5ce176a20029bc642d0b.html
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1. 连接上 ssh
   
2. 
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3. 
   
4. 第一步:下载redis
   % `' k# u* X% U- l' G
5. # wget http://redis.googlecode.com/files/redis-2.6.10.tar.gz
   
6. # tar zxvf redis-2.6.10.tar.gz
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7. # cd redis-2.6.10
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8. # make
   
9. # make install  
   
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#########
    
14. # Redis configuration file example
    
15. 
    : r6 H/ ~2 f% m
16. # Note on units: when memory size is needed, it is possible to specify
    
17. # it in the usual form of 1k 5GB 4M and so forth:
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18. #
    
19. # 1k => 1000 bytes
    
20. # 1kb => 1024 bytes
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21. # 1m => 1000000 bytes
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22. # 1mb => 1024*1024 bytes
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23. # 1g => 1000000000 bytes
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24. # 1gb => 1024*1024*1024 bytes
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25. #
    - A3 ?( N, p* r3 u7 _
26. # units are case insensitive so 1GB 1Gb 1gB are all the same.
    
27. 
    # ^- Y$ M  r5 f. L; D
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.
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30. daemonize yes
    6 w! ?; s3 B; V# [$ H
31. 
    ) j5 u/ s5 @/ }: @$ M; N
32. # When running daemonized, Redis writes a pid file in /var/run/redis.pid by
    ! @: b9 B4 E9 @" l+ K7 w
33. # default. You can specify a custom pid file location here.
    
34. pidfile /var/run/redis.pid
    
35. 
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36. # Accept connections on the specified port, default is 6379.
    
37. # If port 0 is specified Redis will not listen on a TCP socket.
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38. port 6379
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39. 
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40. # If you want you can bind a single interface, if the bind option is not
    
41. # specified all the interfaces will listen for incoming connections.
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42. #
    ) X2 W1 @6 U4 J0 I" T8 U
43. # bind 127.0.0.1
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44. 
    , [5 _8 j3 j5 k' C
45. # Specify the path for the unix socket that will be used to listen for
    
46. # incoming connections. There is no default, so Redis will not listen
    
47. # on a unix socket when not specified.
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48. #
      \$ N; [7 f3 r& N2 D5 E
49. # unixsocket /tmp/redis.sock
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50. # unixsocketperm 755
    
51. 
    
52. # Close the connection after a client is idle for N seconds (0 to disable)
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53. timeout 300
    
54. 
    
55. # TCP keepalive.
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56. #
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57. # If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence
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58. # of communication. This is useful for two reasons:
    " i8 V! f$ e9 E; ]
59. #
    2 o7 K" B% s  h# l
60. # 1) Detect dead peers.
    8 L6 l! P6 y( l4 P- L: l. }
61. # 2) Take the connection alive from the point of view of network
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62. #    equipment in the middle.
    
63. #
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64. # On Linux, the specified value (in seconds) is the period used to send ACKs.
    
65. # Note that to close the connection the double of the time is needed.
    
66. # On other kernels the period depends on the kernel configuration.
    
67. #
    
68. # A reasonable value for this option is 60 seconds.
    
69. tcp-keepalive 0
    
70. 
    ; i, T9 O& n, F5 k! h* [# Q$ @, \1 S
71. # Specify the server verbosity level.
    2 R0 ^+ E$ r  Z$ R
72. # This can be one of:
    
73. # debug (a lot of information, useful for development/testing)
    % a( {- ]2 M/ X3 R
74. # verbose (many rarely useful info, but not a mess like the debug level)
    
75. # notice (moderately verbose, what you want in production probably)
    9 h. F. P/ m% T9 Z! i( @  X
76. # warning (only very important / critical messages are logged)
    
77. loglevel warning
    
78. 
    $ ~$ [4 N0 b" h# g+ x& t
79. # Specify the log file name. Also 'stdout' can be used to force
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80. # Redis to log on the standard output. Note that if you use standard
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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,
    0 S$ B0 \5 g( S, k' Z7 t
85. # and optionally update the other syslog parameters to suit your needs.
    
86. syslog-enabled yes
    
87. 
    3 k/ v* |3 l/ Y: g% U
88. # Specify the syslog identity.
    2 S2 b5 E- B  y; v
89. # syslog-ident redis
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90. 
    
91. # Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
    
92. syslog-facility local0
    
93. 
    
94. # Set the number of databases. The default database is DB 0, you can select
    
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
    
98. 
    6 `6 V9 ~) W& X5 Q0 O6 _) Y
99. ################################ SNAPSHOTTING  #################################
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100. #
     
101. # Save the DB on disk:
     
102. #
     
103. #   save <seconds> <changes>
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104. #
     
105. #   Will save the DB if both the given number of seconds and the given
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106. #   number of write operations against the DB occurred.
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107. #
     
108. #   In the example below the behaviour will be to save:
     
109. #   after 900 sec (15 min) if at least 1 key changed
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110. #   after 300 sec (5 min) if at least 10 keys changed
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111. #   after 60 sec if at least 10000 keys changed
     2 E$ |' @  G, j5 ~3 b. i  F3 n
112. #
     
113. #   Note: you can disable saving at all commenting all the "save" lines.
     
114. #
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115. #   It is also possible to remove all the previously configured save
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116. #   points by adding a save directive with a single empty string argument
     
117. #   like in the following example:
     
118. #
     
119. #   save ""
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120. 
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121. save 900 1
     
122. save 300 10
     
123. save 60 10000
     
124. 
     
125. # By default Redis will stop accepting writes if RDB snapshots are enabled
     
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
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128. # on disk properly, otherwise chances are that no one will notice and some
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129. # distater will happen.
     
130. #
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131. # If the background saving process will start working again Redis will
     
132. # automatically allow writes again.
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133. #
     + C( r9 o7 x/ v8 O" _# ]
134. # However if you have setup your proper monitoring of the Redis server
     
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,
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137. # permissions, and so forth.
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138. stop-writes-on-bgsave-error yes
     
139. 
     
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.
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142. # If you want to save some CPU in the saving child set it to 'no' but
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143. # the dataset will likely be bigger if you have compressible values or keys.
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144. rdbcompression yes
     
145. 
     
146. # Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
     
147. # This makes the format more resistant to corruption but there is a performance
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148. # hit to pay (around 10%) when saving and loading RDB files, so you can disable it
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149. # for maximum performances.
     
150. #
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151. # RDB files created with checksum disabled have a checksum of zero that will
     
152. # tell the loading code to skip the check.
     ! M1 _+ T: u3 L6 ^1 f
153. rdbchecksum yes
     
154. 
     
155. # The filename where to dump the DB
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156. dbfilename dump.rdb
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157. 
     
158. # The working directory.
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159. #
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160. # The DB will be written inside this directory, with the filename specified
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161. # above using the 'dbfilename' configuration directive.
     
162. #
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163. # The Append Only File will also be created inside this directory.
     
164. #
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165. # Note that you must specify a directory here, not a file name.
     
166. dir /var/db/redis
     
167. 
     
168. ################################# REPLICATION #################################
     
169. 
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170. # Master-Slave replication. Use slaveof to make a Redis instance a copy of
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171. # another Redis server. Note that the configuration is local to the slave
     
172. # so for example it is possible to configure the slave to save the DB with a
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173. # different interval, or to listen to another port, and so on.
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174. #
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175. # slaveof <masterip> <masterport>
     % D" T' k. n0 x8 ?! d! Q
176. 
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177. # If the master is password protected (using the "requirepass" configuration
     
178. # directive below) it is possible to tell the slave to authenticate before
     
179. # starting the replication synchronization process, otherwise the master will
     $ E. w' E6 l# c1 q1 Y! t# D
180. # refuse the slave request.
     * y. i$ Z% F6 b. D4 Y! M, g$ S
181. #
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182. # masterauth <master-password>
     
183. 
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184. # When a slave loses its connection with the master, or when the replication
     
185. # is still in progress, the slave can act in two different ways:
     
186. #
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187. # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will
     
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.
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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
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193. #    but to INFO and SLAVEOF.
     3 ~7 V+ O. w0 `$ W2 v+ G& Q8 _
194. #
     
195. slave-serve-stale-data yes
     
196. 
     / i/ }. g+ K! s# r; B+ A9 v
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
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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
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201. # misconfiguration.
     & K7 ~1 ?* y# j; |. ~4 ?
202. #
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203. # Since Redis 2.6 by default slaves are read-only.
     ( v! f1 E& m  A4 e0 e
204. #
     & S. M4 M% W. `$ a* e
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
     # ~2 T% ?: ~* ^$ X
208. # such as CONFIG, DEBUG, and so forth. To a limited extend you can improve
     * c  }& r4 ?% y! R/ T/ H
209. # security of read only slaves using 'rename-command' to shadow all the
     
210. # administrative / dangerous commands.
     9 P' \: L( ]" M% ^  Y
211. slave-read-only yes
     
212. 
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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.
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216. #
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217. # repl-ping-slave-period 10
     
218. 
     
219. # The following option sets a timeout for both Bulk transfer I/O timeout and
     $ ^9 W! U! f# u6 }6 ~
220. # master data or ping response timeout. The default value is 60 seconds.
     2 L, p0 h9 {/ Q! [! }. p
221. #
     
222. # It is important to make sure that this value is greater than the value
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223. # specified for repl-ping-slave-period otherwise a timeout will be detected
     
224. # every time there is low traffic between the master and the slave.
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225. #
     
226. # repl-timeout 60
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227. 
     
228. # Disable TCP_NODELAY on the slave socket after SYNC?
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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
     
232. # the data to appear on the slave side, up to 40 milliseconds with
     
233. # Linux kernels using a default configuration.
     
234. #
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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. #
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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.
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241. repl-disable-tcp-nodelay no
     
242. 
     
243. # The slave priority is an integer number published by Redis in the INFO output.
     
244. # It is used by Redis Sentinel in order to select a slave to promote into a
     4 }' v% \2 n; @8 T2 \- X
245. # master if the master is no longer working correctly.
     % j5 H6 ^" \0 a
246. #
     
247. # A slave with a low priority number is considered better for promotion, so
     
248. # for instance if there are three slaves with priority 10, 100, 25 Sentinel will
     4 o: c! L- F7 ]4 l$ c: i
249. # pick the one wtih priority 10, that is the lowest.
     0 ^# W0 I% W. f8 X
250. #
     
251. # However a special priority of 0 marks the slave as not able to perform the
       |/ J/ F9 i( [: q- ~; Y
252. # role of master, so a slave with priority of 0 will never be selected by
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253. # Redis Sentinel for promotion.
     
254. #
     
255. # By default the priority is 100.
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256. slave-priority 100
     
257. 
     
258. ################################## SECURITY ###################################
     
259. 
     
260. # Require clients to issue AUTH <ASSWORD> before processing any other
     + ?7 |% d1 c) K& C. b% \" c8 A
261. # commands.  This might be useful in environments in which you do not trust
     # }$ l9 d% R2 f+ o- d& R' t
262. # others with access to the host running redis-server.
     7 P' y! v, {1 g
263. #
     
264. # This should stay commented out for backward compatibility and because most
     9 L6 m# u" J% }( t* v
265. # people do not need auth (e.g. they run their own servers).
     
266. #
     
267. # Warning: since Redis is pretty fast an outside user can try up to
     : Y2 V* s6 ]" u$ a% B# d, u
268. # 150k passwords per second against a good box. This means that you should
     
269. # use a very strong password otherwise it will be very easy to break.
     
270. #
     0 p: a% o, X  }
271. # requirepass foobared
     
272. 
     " E) Q* r# y9 y; z7 Y! M! M
273. # Command renaming.
     ' Q: u% }9 C$ E) t
274. #
     
275. # It is possible to change the name of dangerous commands in a shared
     & t; K- u  a- i: g  R! w" h
276. # environment. For instance the CONFIG command may be renamed into something
     ! M. g# Y0 T  r. ]  {/ b
277. # hard to guess so that it will still be available for internal-use tools
     
278. # but not available for general clients.
     
279. #
     6 p1 L5 Z- I. R: z, |% b
280. # Example:
     % U4 h' r% V' Q; i3 D& v" a
281. #
     
282. # rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
     ( q# {" D# F3 E3 D. _
283. #
     
284. # It is also possible to completely kill a command by renaming it into
     
285. # an empty string:
     
286. #
     
287. # rename-command CONFIG ""
     . K6 f3 H7 y3 s  {/ E3 {$ Y5 |
288. 
     ; w( f  d; g/ O6 p: g. l. D1 `; y
289. ################################### LIMITS ####################################
     
290. 
       V4 [/ z4 G6 \0 C7 W, u6 N
291. # Set the max number of connected clients at the same time. By default
     / f# d$ ?& k& T2 |/ d
292. # this limit is set to 10000 clients, however if the Redis server is not
     , {+ Y, a8 A: D  \+ }
293. # able to configure the process file limit to allow for the specified limit
     
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. #
     : V0 D9 j% E$ K, ]
297. # Once the limit is reached Redis will close all the new connections sending
     
298. # an error 'max number of clients reached'.
     
299. #
     
300. maxclients 500
     # u& u  ]4 W) O- z/ _" A
301. 
     ! I) \5 S! B- |; N; g
302. # Don't use more memory than the specified amount of bytes.
     
303. # When the memory limit is reached Redis will try to remove keys
     " L' @) M: C1 A4 i3 c7 ?
304. # accordingly to the eviction policy selected (see maxmemmory-policy).
     : B. D  s7 x' c7 b
305. #
     
306. # If Redis can't remove keys according to the policy, or if the policy is
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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
     " W. u0 l: R/ P6 h2 Q  E+ T
309. # to reply to read-only commands like GET.
     9 M6 j, \( [+ m% y
310. #
     
311. # This option is usually useful when using Redis as an LRU cache, or to set
     5 ^/ W3 ~, D+ m. o+ E+ c% d
312. # an hard memory limit for an instance (using the 'noeviction' policy).
     * [. Y  j. n0 V; _
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
     ) s; `5 X/ {% h
316. # from the used memory count, so that network problems / resyncs will
     8 o$ k* Z: _/ I8 W! O: [. |
317. # not trigger a loop where keys are evicted, and in turn the output
     ( j0 G3 d( p1 r' L3 D. y% \: f$ ~
318. # buffer of slaves is full with DELs of keys evicted triggering the deletion
     8 l! p5 u; f8 }  _
319. # of more keys, and so forth until the database is completely emptied.
     
320. #
     6 O; q# M9 T6 ], g
321. # In short... if you have slaves attached it is suggested that you set a lower
     & L; r' s5 R2 a
322. # limit for maxmemory so that there is some free RAM on the system for slave
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323. # output buffers (but this is not needed if the policy is 'noeviction').
     " Z$ o& B5 r0 K) i" d# U
324. #
     
325. maxmemory 128000000
     
326. 
     
327. # MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
     * r( M0 J0 ^+ l0 S
328. # is reached. You can select among five behaviors:
     
329. #
     ) n4 L5 [3 }9 X
330. # volatile-lru -> remove the key with an expire set using an LRU algorithm
     - R  \& ?, O# f8 R- }* P# G3 ?8 P
331. # allkeys-lru -> remove any key accordingly to the LRU algorithm
     
332. # volatile-random -> remove a random key with an expire set
     
333. # allkeys-random -> remove a random key, any key
     
334. # volatile-ttl -> remove the key with the nearest expire time (minor TTL)
     ! \. v( z2 _# e% I6 ^6 U; n$ W
335. # noeviction -> don't expire at all, just return an error on write operations
     
336. #
     + M$ E/ M; I2 R9 U
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.
     3 ?, H) J. B9 L& R( C8 x9 w0 B; p
339. #
       y7 R: g1 r" ]- c5 a
340. #       At the date of writing this commands are: set setnx setex append
     
341. #       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
     
342. #       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
     
343. #       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
     
344. #       getset mset msetnx exec sort
     
345. #
     8 z$ _1 f* p7 ^' F# j
346. # The default is:
     & I* `" ~8 {9 Z  k% _7 L; H
347. #
     
348. # maxmemory-policy volatile-lru
     & Z! a! C9 l6 k' o1 I
349. 
     
350. # LRU and minimal TTL algorithms are not precise algorithms but approximated
     5 I9 @( k3 s! k& \6 L4 A2 }
351. # algorithms (in order to save memory), so you can select as well the sample
     $ s) Q7 m, w6 m5 s' I1 b
352. # size to check. For instance for default Redis will check three keys and
     4 h. m% \; I; K+ x* o
353. # pick the one that was used less recently, you can change the sample size
     $ A: I  w5 ]; v  ?, J+ M8 P
354. # using the following configuration directive.
     
355. #
     - k" p6 O2 f# J  c3 u0 p( P# m5 c
356. # maxmemory-samples 3
     ( t. |+ M0 B, ]
357. 
     - H7 e, |/ B, ~+ r: H" f0 _
358. ############################## APPEND ONLY MODE ###############################
     ( T, w( s! x2 q" a8 s
359. 
     8 c" O/ g, Q$ {) V/ h6 Z
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
     ; x& X4 l  R9 S+ ?. @$ ^' c$ V
362. # a power outage may result into a few minutes of writes lost (depending on
     & b3 q0 _' }6 {8 x/ ^4 d& s3 Y
363. # the configured save points).
     % u$ Q, f4 y. O/ c
364. #
     ; u- r% i2 p- ~* _
365. # The Append Only File is an alternative persistence mode that provides
     
366. # much better durability. For instance using the default data fsync policy
     
367. # (see later in the config file) Redis can lose just one second of writes in a
     
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.
     7 W) }# X0 _# A, u) J, {% [3 t
371. #
     1 j2 Q0 k7 |" b2 A; Q6 _
372. # AOF and RDB persistence can be enabled at the same time without problems.
     
373. # If the AOF is enabled on startup Redis will load the AOF, that is the file
     
374. # with the better durability guarantees.
       d$ H! H" c" T" @7 q5 y3 T) p
375. #
     
376. # Please check http://redis.io/topics/persistence for more information.
     0 x0 E7 E: ]6 f- h2 D7 f
377. 
     
378. appendonly no
     
379. 
     , @8 ^; @5 }  T6 g: R# V' o) J
380. # The name of the append only file (default: "appendonly.aof")
     
381. # appendfilename appendonly.aof
     
382. 
     
383. # The fsync() call tells the Operating System to actually write data on disk
     : ^8 Z; d$ C9 L1 V
384. # instead to wait for more data in the output buffer. Some OS will really flush
     
385. # data on disk, some other OS will just try to do it ASAP.
     & p: A9 w" B. m6 e0 g8 c3 L
386. #
     
387. # Redis supports three different modes:
     
388. #
     
389. # no: don't fsync, just let the OS flush the data when it wants. Faster.
     
390. # always: fsync after every write to the append only log . Slow, Safest.
     . {) g/ a, X# i9 y. x! {5 f. R
391. # everysec: fsync only one time every second. Compromise.
     3 ?7 g/ Z9 j) n! O" y9 q- b! y4 N" u
392. #
     
393. # The default is "everysec", as that's usually the right compromise between
     
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
     2 y- u( Y9 c4 [0 X% J) m
396. # it wants, for better performances (but if you can live with the idea of
     
397. # some data loss consider the default persistence mode that's snapshotting),
     . f( q/ F  D$ X# a
398. # or on the contrary, use "always" that's very slow but a bit safer than
     0 S) M& p, q6 l& Q/ J1 ?: L
399. # everysec.
     
400. #
     : V( D  E6 B/ B, l
401. # More details please check the following article:
     * \; E' Y+ E3 T) {# ?0 I4 y" N; ^% J
402. # http://antirez.com/post/redis-persistence-demystified.html
     1 }! R: A: y$ e  @$ g/ T: J
403. #
     
404. # If unsure, use "everysec".
     4 w$ j1 x6 p7 S0 Z
405. 
     
406. # appendfsync always
     6 A, E- o' ?% ~  E4 u. G
407. appendfsync everysec
     ' v$ b4 E+ B' F+ }+ u: D, {
408. # appendfsync no
     2 O5 ]0 \( f' Q4 g
409. 
     
410. # When the AOF fsync policy is set to always or everysec, and a background
     5 T) o  D5 b4 f7 C9 T  B
411. # saving process (a background save or AOF log background rewriting) is
     5 g1 i# p% e0 E  N
412. # performing a lot of I/O against the disk, in some Linux configurations
     
413. # Redis may block too long on the fsync() call. Note that there is no fix for
     
414. # this currently, as even performing fsync in a different thread will block
     & M' ?& F$ H* d) G1 d5 `
415. # our synchronous write(2) call.
     
416. #
     4 @0 Y4 D4 K2 L5 x% r
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
     ; F  r* C* \+ ?
419. # BGSAVE or BGREWRITEAOF is in progress.
     6 Z) y# h5 v+ T& |
420. #
     ' d8 |; ]! Q; O9 J( p6 x4 j
421. # This means that while another child is saving, the durability of Redis is
     # y* ?0 l8 h0 R  G2 s
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
     ) X' F8 ^. l. N0 K4 q
424. # default Linux settings).
     
425. #
     9 B7 W5 ~8 r/ I$ ~1 T
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.
     
428. no-appendfsync-on-rewrite no
     
429. 
       _8 T# _' V; }* m$ x
430. # Automatic rewrite of the append only file.
     7 r5 c  I2 S3 c% E/ A
431. # Redis is able to automatically rewrite the log file implicitly calling
     % O: c0 m# Q: i0 O* D5 I
432. # BGREWRITEAOF when the AOF log size grows by the specified percentage.
     
433. #
     
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
     
436. # the AOF at startup is used).
     
437. #
     ! j1 C3 U2 J0 g1 k
438. # This base size is compared to the current size. If the current size is
     9 ~, {* c$ w- U% K2 l6 j. G& n/ D* h
439. # bigger than the specified percentage, the rewrite is triggered. Also
     " c9 z6 P# E' `, Q2 E% j! F
440. # you need to specify a minimal size for the AOF file to be rewritten, this
     6 u, F7 N! s4 ]& }5 k
441. # is useful to avoid rewriting the AOF file even if the percentage increase
     9 |) Z1 a# W& T! [6 x! J  N  \
442. # is reached but it is still pretty small.
     2 s6 \$ H& |; z$ T: e6 X
443. #
     . H: q7 F  W4 w+ `+ }
444. # Specify a percentage of zero in order to disable the automatic AOF
     
445. # rewrite feature.
     ' x5 b6 z1 c; R
446. 
     
447. auto-aof-rewrite-percentage 100
     . k* U  o9 [3 R( V: J- v
448. auto-aof-rewrite-min-size 64mb
     
449. 
     
450. ################################ LUA SCRIPTING  ###############################
     2 s& B1 c4 G" p
451. 
     
452. # Max execution time of a Lua script in milliseconds.
     
453. #
     5 h6 t5 ~- L, g3 G" ?
454. # If the maximum execution time is reached Redis will log that a script is
     * v' i5 k' d& G! Z$ j# [2 @  E) w* g
455. # still in execution after the maximum allowed time and will start to
     
456. # reply to queries with an error.
     8 J2 B: w0 @2 f: h; O6 a4 Q2 }
457. #
     
458. # When a long running script exceed the maximum execution time only the
     
459. # SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be
     : n; O; A! ^5 L% A+ o- U+ V( K4 r  T
460. # used to stop a script that did not yet called write commands. The second
     & r. c6 \  R) W& P4 V( L; ~
461. # is the only way to shut down the server in the case a write commands was
     
462. # already issue by the script but the user don't want to wait for the natural
     
463. # termination of the script.
     . [0 [0 ]$ u" ~+ M3 H3 E$ z
464. #
       K( f# ^/ J; F1 `; F/ V
465. # Set it to 0 or a negative value for unlimited execution without warnings.
     
466. lua-time-limit 5000
     - e0 ?4 e5 e1 b# t7 ^6 i6 [4 B
467. 
     
468. ################################## SLOW LOG ###################################
       S3 c$ q0 C" W& X: i8 N
469. 
     
470. # The Redis Slow Log is a system to log queries that exceeded a specified
     6 o4 @9 W9 G8 r# B
471. # execution time. The execution time does not include the I/O operations
     
472. # like talking with the client, sending the reply and so forth,
     ' h# x9 F$ ~, Z
473. # but just the time needed to actually execute the command (this is the only
     5 H; S! ~' |& P3 Z9 T9 p6 c
474. # stage of command execution where the thread is blocked and can not serve
     " B( A- j* d% ~
475. # other requests in the meantime).
     2 Y" h  e2 r5 W, g9 J5 R
476. #
     * X4 e* A3 g/ {) J+ F, u$ V
477. # You can configure the slow log with two parameters: one tells Redis
     9 V$ W& h3 N- e5 M) H& O
478. # what is the execution time, in microseconds, to exceed in order for the
     
479. # command to get logged, and the other parameter is the length of the
     ! Z" q7 _; ~2 R- D. x  Y
480. # slow log. When a new command is logged the oldest one is removed from the
     
481. # queue of logged commands.
     " h. P  y* H( h$ K. d3 f
482. 
     
483. # The following time is expressed in microseconds, so 1000000 is equivalent
     
484. # to one second. Note that a negative number disables the slow log, while
     , ?9 z$ V( I2 w- N7 H
485. # a value of zero forces the logging of every command.
     
486. slowlog-log-slower-than 10000
     
487. 
     8 V; k9 Z& w6 _( r6 |% \" S
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
     * N/ \* A$ x, Z) ~9 I
491. 
     
492. ############################### ADVANCED CONFIG ###############################
     $ p1 s: C/ d6 T; W
493. 
     
494. # Hashes are encoded using a memory efficient data structure when they have a
     
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.
     2 J, @1 |1 }5 n: z! c  f* |  W/ D# Q7 z
497. hash-max-ziplist-entries 512
     
498. hash-max-ziplist-value 64
     " B& `1 |3 g1 {; z- p! D( m
499. 
     
500. # Similarly to hashes, small lists are also encoded in a special way in order
     
501. # to save a lot of space. The special representation is only used when
     
502. # you are under the following limits:
     
503. list-max-ziplist-entries 512
     
504. list-max-ziplist-value 64
     . \* m1 D- J8 Z: D" o# X) ?1 p
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
     
508. # of 64 bit signed integers.
     2 a- |5 x5 a! T, m1 @4 D
509. # The following configuration setting sets the limit in the size of the
     9 L7 O  b% w9 g. n
510. # set in order to use this special memory saving encoding.
     ) W4 B0 v$ `7 r/ Q' i5 q
511. set-max-intset-entries 512
     
512. 
     ( [$ X& p0 V+ z; K+ Y* O
513. # Similarly to hashes and lists, sorted sets are also specially encoded in
     ; l. H+ b* E$ J
514. # order to save a lot of space. This encoding is only used when the length and
     * _* _9 d3 I. d/ d5 w- `* p
515. # elements of a sorted set are below the following limits:
     
516. zset-max-ziplist-entries 128
     : {. C( j1 ~: Y3 Y3 v$ m' V
517. zset-max-ziplist-value 64
     7 w! G$ t5 D/ s5 H
518. 
     4 q" \! X  ~* }& {0 t1 H+ u: ?
519. # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
     
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
     
523. # that is rehashing, the more rehashing "steps" are performed, so if the
     " m- \$ P+ z0 ?$ u9 B3 |
524. # server is idle the rehashing is never complete and some more memory is used
     
525. # by the hash table.
     ' g% [! d' N: t  U* |* W
526. #
     
527. # The default is to use this millisecond 10 times every second in order to
     
528. # active rehashing the main dictionaries, freeing memory when possible.
     
529. #
     
530. # If unsure:
     8 ^+ j, _; B8 o; d! @# B
531. # use "activerehashing no" if you have hard latency requirements and it is
     
532. # not a good thing in your environment that Redis can reply form time to time
     & }' k. e6 D# g7 B5 H0 \( V) [" |
533. # to queries with 2 milliseconds delay.
     
534. #
     - ~# f: F2 u/ g$ I8 L( l' X& f5 G
535. # use "activerehashing yes" if you don't have such hard requirements but
     
536. # want to free memory asap when possible.
     3 q* f1 @6 b2 T/ B8 b1 |5 d
537. activerehashing yes
     7 g& M: G0 W& n" I
538. 
     * G5 M% ^8 i. H. s+ y! H* l
539. # The client output buffer limits can be used to force disconnection of clients
     
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. #
     
544. # The limit can be set differently for the three different classes of clients:
     1 n5 s7 D5 b& |- x/ w
545. #
     8 n! o; ]8 J1 d; v- u$ a- r
546. # normal -> normal clients
     9 P1 x; G. w5 G9 w5 N
547. # slave  -> slave clients and MONITOR clients
     
548. # pubsub -> clients subcribed to at least one pubsub channel or pattern
     , x( l5 c4 W  @
549. #
     7 C. u' C( [  b5 ?2 E
550. # The syntax of every client-output-buffer-limit directive is the following:
     - `% `0 a' ?6 g# x* d* {* [3 N
551. #
     , Z3 j( |+ {& a8 i5 r. M5 e4 u
552. # client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
     $ B- }* N* r% T- J1 U# `7 z
553. #
     # n% g4 Q/ ?6 ^* i1 `% v
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
     
556. # seconds (continuously).
     ) Y/ _$ A  b! L- c& K4 o2 O: S
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
     : I7 E# n2 s+ {6 c8 [; S
559. # if the size of the output buffers reach 32 megabytes, but will also get
     8 [# n6 m* x2 d; s$ f* _
560. # disconnected if the client reaches 16 megabytes and continuously overcomes
     4 a1 K  P' }' a
561. # the limit for 10 seconds.
     - ]( E) q8 h, \+ ]
562. #
     5 ?# z1 x3 \; t  o. z6 _+ H
563. # By default normal clients are not limited because they don't receive data
     
564. # without asking (in a push way), but just after a request, so only
     7 e" k& n4 t; M- O
565. # asynchronous clients may create a scenario where data is requested faster
     4 s+ [! c# K  X
566. # than it can read.
     
567. #
     3 t5 \% x0 ^0 _9 {5 A, I( c5 E- ?
568. # Instead there is a default limit for pubsub and slave clients, since
     
569. # subscribers and slaves receive data in a push fashion.
     0 q6 l! y% i- q6 X! L# g
570. #
     3 c5 {: [, T4 y, C) L
571. # Both the hard or the soft limit can be disabled by setting them to zero.
     
572. client-output-buffer-limit normal 0 0 0
     ( [' @% f8 R+ k8 d4 N
573. client-output-buffer-limit slave 256mb 64mb 60
     
574. client-output-buffer-limit pubsub 32mb 8mb 60
     ) K1 G- Y) y' T1 `
575. 
     
576. ################################## INCLUDES ###################################
     
577. 
     " S3 A. u3 n& ?& `* F6 a' A$ B1 a, y
578. # Include one or more other config files here.  This is useful if you
     7 G: Q) [/ q8 |
579. # have a standard template that goes to all Redis server but also need
     ( \+ J* m) z* u* Y! b
580. # to customize a few per-server settings.  Include files can include
     ; Q; ?% d4 W- i8 R+ O
581. # other files, so use this wisely.
     
582. #
     
583. # include /path/to/local.conf
     8 s7 ]/ k' `* _# Z7 h+ V+ {
584. # include /path/to/other.conf        
     
585. ##########################配置文件结束################################
     
586. 第三步：启动进程
     
587. #redis-server /etc/redis.conf
     0 I  E( p5 R* s) ]9 B- {
588. 查看进程有没有成功启动
     
589. #ps -ef | grep redis
     ) {( i! c& U# e% a1 h' j' U+ a& P
590. 测试输入一个键值
     
591. #redis-cli set test "testredis"
     4 N3 B0 C$ e' I
592. 获取键值
     4 x2 a8 }8 z" I8 a( g  O' p# u. m
593. #redis-cli get test
     2 Y, v! \# n( x$ {2 Q* E
594. 
     . C( C8 Q. s: u4 ?; ]
595. 
     ; u% O4 L+ {' `" x1 s) M
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)
     % k% I8 G0 Y8 C, }; j  G! F* l/ X
597. # redis-cli shutdown      //关闭所有   
     
598. 关闭某个端口上的redis   
     ' s  B4 Q) b) N* t& ]1 F1 d. F* k
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. 
     / X. l  \% p& N6 E
602. 
     & Q9 b; @- T1 d
603. 第5步:php扩展安装
     + [2 |* T+ L* a6 Z5 E0 {
604. phpredis PHP扩展下载地址
     9 X$ L1 J2 @( X
605. https://github.com/nicolasff/phpredis/tree/2.2.2
     
606. 选择最新版本下载zip
     ) L/ x1 ^8 y# M. c! b! ^# k& _
607. 
     ! F. y! O  k3 a$ W! ^! b
608. 然后自己上传zip  用unzip解压到当前目录 unzip 文件名
     
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
     
611. # /www/nginx_php-5.2.17/bin
     1 F! q6 G; U8 d- z" w
612. # ./configure --with-php-config=/www/nginx_php-5.2.17/bin/php-config
     
613. #make
     
614. #make install   #记录产生的redis.so路径
     $ T: c" U9 A5 \& r3 t: _  c7 j
615. 
     
616. 修改php.ini文件
     
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
     * v( B! Y# k5 k, }( f, ?1 G
619. 重启 使之生效：
     
620. /usr/local/php/sbin/php-fpm reload
     & h, _1 g2 ^, D: E+ Z: L1 g
621. /usr/local/nginx/sbin/nginx -s reload
     
622. 
     # P' x, g5 I  _7 y0 O* q
623. 将 Redis 作为 Linux 服务随机启动
     
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
     7 J8 S9 ]/ P/ q* u" ]* n* K
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
     + Y1 ?7 u3 E  t
632. dz配置文件在 config目录下面的 config_global.php
     $ |6 R! m8 M7 ~/ ?' ?
633. $_config['memory']['redis']['server'] = '127.0.0.1';
     
634. $_config['memory']['redis']['port'] = 6379;
     ( h" u; J' u/ r2 }/ v$ t
635. $_config['memory']['redis']['pconnect'] = 1;
     1 m1 s" N3 S+ ]! w$ N
636. $_config['memory']['redis']['timeout'] = '0';
     
637. $_config['memory']['redis']['serializer'] = 1;
     

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