X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/e7546c639301968a011265b96ea6e7f22407960e..841053366f12c27dcd225f83c8ae7312326be32e:/redis.conf diff --git a/redis.conf b/redis.conf index 69663521..2923a3aa 100644 --- a/redis.conf +++ b/redis.conf @@ -22,9 +22,10 @@ timeout 300 # Set server verbosity to 'debug' # it can be one of: # debug (a lot of information, useful for development/testing) +# verbose (many rarely useful info, but not a mess like the debug level) # notice (moderately verbose, what you want in production probably) # warning (only very important / critical messages are logged) -loglevel debug +loglevel verbose # Specify the log file name. Also 'stdout' can be used to force # the demon to log on the standard output. Note that if you use standard @@ -52,9 +53,9 @@ databases 16 # # Note: you can disable saving at all commenting all the "save" lines. -#save 900 1 -#save 300 10 -#save 60 10000 +save 900 1 +save 300 10 +save 60 10000 # Compress string objects using LZF when dump .rdb databases? # For default that's set to 'yes' as it's almost always a win. @@ -100,7 +101,7 @@ dir ./ # Set the max number of connected clients at the same time. By default there # is no limit, and it's up to the number of file descriptors the Redis process -# is able to open. The special value '0' means no limts. +# is able to open. The special value '0' means no limits. # Once the limit is reached Redis will close all the new connections sending # an error 'max number of clients reached'. # @@ -157,14 +158,18 @@ appendonly no # always: fsync after every write to the append only log . Slow, Safest. # everysec: fsync only if one second passed since the last fsync. Compromise. # -# The default is "always" that's the safer of the options. It's up to you to -# understand if you can relax this to "everysec" that will fsync every second -# or to "no" that will let the operating system flush the output buffer when -# it want, for better performances (but if you can live with the idea of -# some data loss consider the default persistence mode that's snapshotting). +# The default is "everysec" that's usually the right compromise between +# speed and data safety. It's up to you to understand if you can relax this to +# "no" that will will let the operating system flush the output buffer when +# it wants, for better performances (but if you can live with the idea of +# some data loss consider the default persistence mode that's snapshotting), +# or on the contrary, use "always" that's very slow but a bit safer than +# everysec. +# +# If unsure, use "everysec". -appendfsync always -# appendfsync everysec +# appendfsync always +appendfsync everysec # appendfsync no ################################ VIRTUAL MEMORY ############################### @@ -178,13 +183,35 @@ appendfsync always # To enable VM just set 'vm-enabled' to yes, and set the following three # VM parameters accordingly to your needs. -vm-enabled yes -# vm-enabled no +vm-enabled no +# vm-enabled yes + +# This is the path of the Redis swap file. As you can guess, swap files +# can't be shared by different Redis instances, so make sure to use a swap +# file for every redis process you are running. +# +# The swap file name may contain "%p" that is substituted with the PID of +# the Redis process, so the default name /tmp/redis-%p.vm will work even +# with multiple instances as Redis will use, for example, redis-811.vm +# for one instance and redis-593.vm for another one. +# +# Useless to say, the best kind of disk for a Redis swap file (that's accessed +# at random) is a Solid State Disk (SSD). +# +# *** WARNING *** if you are using a shared hosting the default of putting +# the swap file under /tmp is not secure. Create a dir with access granted +# only to Redis user and configure Redis to create the swap file there. +vm-swap-file /tmp/redis-%p.vm # vm-max-memory configures the VM to use at max the specified amount of # RAM. Everything that deos not fit will be swapped on disk *if* possible, that # is, if there is still enough contiguous space in the swap file. -vm-max-memory 10000000 +# +# With vm-max-memory 0 the system will swap everything it can. Not a good +# default, just specify the max amount of RAM you can in bytes, but it's +# better to leave some margin. For instance specify an amount of RAM +# that's more or less between 60 and 80% of your free RAM. +vm-max-memory 0 # Redis swap files is split into pages. An object can be saved using multiple # contiguous pages, but pages can't be shared between different objects. @@ -194,8 +221,8 @@ vm-max-memory 10000000 # # If you use a lot of small objects, use a page size of 64 or 32 bytes. # If you use a lot of big objects, use a bigger page size. -# If unsure, use the defualt :) -vm-page-size 256 +# If unsure, use the default :) +vm-page-size 32 # Number of total memory pages in the swap file. # Given that the page table (a bitmap of free/used pages) is taken in memory, @@ -203,9 +230,23 @@ vm-page-size 256 # # The total swap size is vm-page-size * vm-pages # -# With the default of 256-bytes memory pages and 104857600 pages Redis will -# use a 25 GB swap file, that will use rougly 13 MB of RAM for the page table. -vm-pages 104857600 +# With the default of 32-bytes memory pages and 134217728 pages Redis will +# use a 4 GB swap file, that will use 16 MB of RAM for the page table. +# +# It's better to use the smallest acceptable value for your application, +# but the default is large in order to work in most conditions. +vm-pages 134217728 + +# Max number of VM I/O threads running at the same time. +# This threads are used to read/write data from/to swap file, since they +# also encode and decode objects from disk to memory or the reverse, a bigger +# number of threads can help with big objects even if they can't help with +# I/O itself as the physical device may not be able to couple with many +# reads/writes operations at the same time. +# +# The special value of 0 turn off threaded I/O and enables the blocking +# Virtual Memory implementation. +vm-max-threads 4 ############################### ADVANCED CONFIG ###############################