Merge remote branch 'origin/unstable' into unstable

[redis.git] / redis.conf

diff --git a/redis.conf b/redis.conf
index 05374ed7ea3adb482298edb65b7ef0bbe81b0577..6d18e2f5839d33b97e10fe9efc6b453851971d96 100644 (file)
--- a/redis.conf
+++ b/redis.conf
@@ -21,6 +21,7 @@ daemonize no
 pidfile /var/run/redis.pid
 
 # Accept connections on the specified port, default is 6379.
 pidfile /var/run/redis.pid
 
 # Accept connections on the specified port, default is 6379.

+# If port 0 is specified Redis will not listen on a TCP socket.

 port 6379
 
 # If you want you can bind a single interface, if the bind option is not
 port 6379
 
 # If you want you can bind a single interface, if the bind option is not


@@ -291,91 +292,53 @@ appendfsync everysec
 # "no" that is the safest pick from the point of view of durability.
 no-appendfsync-on-rewrite no
 
 # "no" that is the safest pick from the point of view of durability.
 no-appendfsync-on-rewrite no
 

-################################ VIRTUAL MEMORY ###############################
-
-# Virtual Memory allows Redis to work with datasets bigger than the actual
-# amount of RAM needed to hold the whole dataset in memory.
-# In order to do so very used keys are taken in memory while the other keys
-# are swapped into a swap file, similarly to what operating systems do
-# with memory pages.
-#
-# To enable VM just set 'vm-enabled' to yes, and set the following three
-# VM parameters accordingly to your needs.
-
-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. Redis will complain if the
-# swap file is already in use.
-#
-# The best kind of storage for the 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.swap
-
-# 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.
-#
-# 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.
-# So if your page is too big, small objects swapped out on disk will waste
-# a lot of space. If you page is too small, there is less space in the swap
-# file (assuming you configured the same number of total swap file pages).
-#
-# 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 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,
-# every 8 pages on disk will consume 1 byte of RAM.
-#
-# The total swap size is vm-page-size * vm-pages
+# Automatic rewrite of the append only file.
+# Redis is able to automatically rewrite the log file implicitly calling
+# BGREWRITEAOF when the AOF log size will growth by the specified percentage.
+# 
+# This is how it works: Redis remembers the size of the AOF file after the
+# latest rewrite (or if no rewrite happened since the restart, the size of
+# the AOF at startup is used).

 #
 #

-# 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.
+# This base size is compared to the current size. If the current size is
+# bigger than the specified percentage, the rewrite is triggered. Also
+# you need to specify a minimal size for the AOF file to be rewritten, this
+# is useful to avoid rewriting the AOF file even if the percentage increase
+# is reached but it is still pretty small.

 #
 #

-# 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
+# Specify a precentage of zero in order to disable the automatic AOF
+# rewrite feature.

 
 

-# 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
+auto-aof-rewrite-percentage 100
+auto-aof-rewrite-min-size 64mb

 
 ############################### ADVANCED CONFIG ###############################
 
 
 ############################### ADVANCED CONFIG ###############################
 

-# Glue small output buffers together in order to send small replies in a
-# single TCP packet. Uses a bit more CPU but most of the times it is a win
-# in terms of number of queries per second. Use 'yes' if unsure.
-glueoutputbuf yes
-

 # Hashes are encoded in a special way (much more memory efficient) when they
 # have at max a given numer of elements, and the biggest element does not
 # exceed a given threshold. You can configure this limits with the following
 # configuration directives.
 # Hashes are encoded in a special way (much more memory efficient) when they
 # have at max a given numer of elements, and the biggest element does not
 # exceed a given threshold. You can configure this limits with the following
 # configuration directives.

-hash-max-zipmap-entries 64
-hash-max-zipmap-value 512
+hash-max-zipmap-entries 512
+hash-max-zipmap-value 64
+
+# Similarly to hashes, small lists are also encoded in a special way in order
+# to save a lot of space. The special representation is only used when
+# you are under the following limits:
+list-max-ziplist-entries 512
+list-max-ziplist-value 64
+
+# Sets have a special encoding in just one case: when a set is composed
+# of just strings that happens to be integers in radix 10 in the range
+# of 64 bit signed integers.
+# The following configuration setting sets the limit in the size of the
+# set in order to use this special memory saving encoding.
+set-max-intset-entries 512
+
+# Similarly to hashes and lists, sorted sets are also specially encoded in
+# order to save a lot of space. This encoding is only used when the length and
+# elements of a sorted set are below the following limits:
+zset-max-ziplist-entries 128
+zset-max-ziplist-value 64

 
 # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
 # order to help rehashing the main Redis hash table (the one mapping top-level
 
 # Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
 # order to help rehashing the main Redis hash table (the one mapping top-level