1 # Redis configuration file example  2   3 # By default Redis does not run as a daemon. Use ‘yes‘ if you need it.  4 # Note that Redis will write a pid file in /var/run/redis.pid when daemonized.  5 daemonize no  6   7 # When run as a daemon, Redis write a pid file in /var/run/redis.pid by default.  8 # You can specify a custom pid file location here.  9 pidfile /var/run/redis.pid 10  11 # Accept connections on the specified port, default is 6379 12 port 6379 13  14 # If you want you can bind a single interface, if the bind option is not 15 # specified all the interfaces will listen for connections. 16 # 17 # bind 127.0.0.1 18  19 # Close the connection after a client is idle for N seconds (0 to disable) 20 timeout 300 21  22 # Set server verbosity to ‘debug‘ 23 # it can be one of: 24 # debug (a lot of information, useful for development/testing) 25 # notice (moderately verbose, what you want in production probably) 26 # warning (only very important / critical messages are logged) 27 loglevel debug 28  29 # Specify the log file name. Also ‘stdout‘ can be used to force 30 # the demon to log on the standard output. Note that if you use standard 31 # output for logging but daemonize, logs will be sent to /dev/null 32 logfile stdout 33  34 # Set the number of databases. The default database is DB 0, you can select 35 # a different one on a per-connection basis using SELECT <dbid> where 36 # dbid is a number between 0 and ‘databases‘-1 37 databases 16 38  39 ################################ SNAPSHOTTING  ################################# 40 # 41 # Save the DB on disk: 42 # 43 #   save <seconds> <changes> 44 # 45 #   Will save the DB if both the given number of seconds and the given 46 #   number of write operations against the DB occurred. 47 # 48 #   In the example below the behaviour will be to save: 49 #   after 900 sec (15 min) if at least 1 key changed 50 #   after 300 sec (5 min) if at least 10 keys changed 51 #   after 60 sec if at least 10000 keys changed 52 save 900 1 53 save 300 10 54 save 60 10000 55  56 # Compress string objects using LZF when dump .rdb databases? 57 # For default that‘s set to ‘yes‘ as it‘s almost always a win. 58 # If you want to save some CPU in the saving child set it to ‘no‘ but 59 # the dataset will likely be bigger if you have compressible values or keys. 60 rdbcompression yes 61  62 # The filename where to dump the DB 63 dbfilename dump.rdb 64  65 # For default save/load DB in/from the working directory 66 # Note that you must specify a directory not a file name. 67 dir ./ 68  69 ################################# REPLICATION ################################# 70  71 # Master-Slave replication. Use slaveof to make a Redis instance a copy of 72 # another Redis server. Note that the configuration is local to the slave 73 # so for example it is possible to configure the slave to save the DB with a 74 # different interval, or to listen to another port, and so on. 75 # 76 # slaveof <masterip> <masterport> 77  78 # If the master is password protected (using the "requirepass" configuration 79 # directive below) it is possible to tell the slave to authenticate before 80 # starting the replication synchronization process, otherwise the master will 81 # refuse the slave request. 82 # 83 # masterauth <master-password> 84  85 ################################## SECURITY ################################### 86  87 # Require clients to issue AUTH <PASSWORD> before processing any other 88 # commands.  This might be useful in environments in which you do not trust 89 # others with access to the host running redis-server. 90 # 91 # This should stay commented out for backward compatibility and because most 92 # people do not need auth (e.g. they run their own servers). 93 # 94 # requirepass foobared 95  96 ################################### LIMITS #################################### 97  98 # Set the max number of connected clients at the same time. By default there 99 # is no limit, and it‘s up to the number of file descriptors the Redis process100 # is able to open. The special value ‘0‘ means no limts.101 # Once the limit is reached Redis will close all the new connections sending102 # an error ‘max number of clients reached‘.103 #104 # maxclients 128105 106 # Don‘t use more memory than the specified amount of bytes.107 # When the memory limit is reached Redis will try to remove keys with an108 # EXPIRE set. It will try to start freeing keys that are going to expire109 # in little time and preserve keys with a longer time to live.110 # Redis will also try to remove objects from free lists if possible.111 #112 # If all this fails, Redis will start to reply with errors to commands113 # that will use more memory, like SET, LPUSH, and so on, and will continue114 # to reply to most read-only commands like GET.115 #116 # WARNING: maxmemory can be a good idea mainly if you want to use Redis as a117 # ‘state‘ server or cache, not as a real DB. When Redis is used as a real118 # database the memory usage will grow over the weeks, it will be obvious if119 # it is going to use too much memory in the long run, and you‘ll have the time120 # to upgrade. With maxmemory after the limit is reached you‘ll start to get121 # errors for write operations, and this may even lead to DB inconsistency.122 #123 # maxmemory <bytes>124 125 ############################## APPEND ONLY MODE ###############################126 127 # By default Redis asynchronously dumps the dataset on disk. If you can live128 # with the idea that the latest records will be lost if something like a crash129 # happens this is the preferred way to run Redis. If instead you care a lot130 # about your data and don‘t want to that a single record can get lost you should131 # enable the append only mode: when this mode is enabled Redis will append132 # every write operation received in the file appendonly.log. This file will133 # be read on startup in order to rebuild the full dataset in memory.134 #135 # Note that you can have both the async dumps and the append only file if you136 # like (you have to comment the "save" statements above to disable the dumps).137 # Still if append only mode is enabled Redis will load the data from the138 # log file at startup ignoring the dump.rdb file.139 #140 # The name of the append only file is "appendonly.log"141 #142 # IMPORTANT: Check the BGREWRITEAOF to check how to rewrite the append143 # log file in background when it gets too big.144 145 appendonly no146 147 # The fsync() call tells the Operating System to actually write data on disk148 # instead to wait for more data in the output buffer. Some OS will really flush149 # data on disk, some other OS will just try to do it ASAP.150 #151 # Redis supports three different modes:152 #153 # no: don‘t fsync, just let the OS flush the data when it wants. Faster.154 # always: fsync after every write to the append only log . Slow, Safest.155 # everysec: fsync only if one second passed since the last fsync. Compromise.156 #157 # The default is "always" that‘s the safer of the options. It‘s up to you to158 # understand if you can relax this to "everysec" that will fsync every second159 # or to "no" that will let the operating system flush the output buffer when160 # it want, for better performances (but if you can live with the idea of161 # some data loss consider the default persistence mode that‘s snapshotting).162 163 appendfsync always164 # appendfsync everysec165 # appendfsync no166 167 ############################### ADVANCED CONFIG ###############################168 169 # Glue small output buffers together in order to send small replies in a170 # single TCP packet. Uses a bit more CPU but most of the times it is a win171 # in terms of number of queries per second. Use ‘yes‘ if unsure.172 glueoutputbuf yes173 174 # Use object sharing. Can save a lot of memory if you have many common175 # string in your dataset, but performs lookups against the shared objects176 # pool so it uses more CPU and can be a bit slower. Usually it‘s a good177 # idea.178 #179 # When object sharing is enabled (shareobjects yes) you can use180 # shareobjectspoolsize to control the size of the pool used in order to try181 # object sharing. A bigger pool size will lead to better sharing capabilities.182 # In general you want this value to be at least the double of the number of183 # very common strings you have in your dataset.184 #185 # WARNING: object sharing is experimental, don‘t enable this feature186 # in production before of Redis 1.0-stable. Still please try this feature in187 # your development environment so that we can test it better.188 # shareobjects no189 # shareobjectspoolsize 1024