Update to Redis coobkook #6

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WP wants to merge 1 commit into AtariTech:master from WP:master

redis/attributes/default.rb

-Original file line number
+Diff line change
@@ Expand Up / @@ -26,3 +26,14 @@ @@
     default[:redis][:vm][:page_size] = "32"
     default[:redis][:vm][:pages] = "134217728"
     default[:redis][:vm][:max_threads] = "4"
+    # set [:redis][:maxmemory] in override attributes if desired
+    default[:redis][:maxmemory] = nil
+    default[:redis][:maxmemory_policy] = "volatile-lru"
+    default[:redis][:hash_max_zipmap_entries] = "64"
+    default[:redis][:hash_max_zipmap_value] = "512"
+    default[:redis][:list_max_ziplist_entries] = "512"
+    default[:redis][:list_max_ziplist_value] = "64"
+    default[:redis][:set_max_intset_entries] = "512"
+    default[:redis][:loglevel] = "warning"
+    default[:redis][:db_path] = "/var/lib/redis"
+    default[:redis][:save_interval] = "900 1"

redis/metadata.rb

-Original file line number
+Diff line change
@@ Expand Up / @@ -3,5 +3,5 @@ @@
     license          "Apache 2.0"
     description      "Installs/configures redis"
     long_description IO.read(File.join(File.dirname(__FILE__), 'README.rdoc'))
-    version          "1.0.0"
+    version          "2.0.0"
     supports         "ubuntu"

redis/recipes/server.rb

-Original file line number
+Diff line change
@@ Expand Up / @@ -19,9 +19,18 @@ @@
     package "redis" do
       package_name "redis-server"
+      version node[:redis][:version] if node[:redis][:version]
       action :install
     end
+    directory node[:redis][:db_path] do
+      owner "redis"
+      group "redis"
+      mode 0755
+      action :create
+      recursive true
+    end
     service "redis" do
       service_name "redis-server"
       supports :status => true, :restart => true
@@ Expand Down @@

redis/templates/default/redis.conf.erb

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -1,5 +1,5 @@
  
    # Redis configuration file example

    # Config file populated by Chef

    <% redis_2_4 = (node['redis']['version'].sub(/[0-9]*:/, '').split('.').map(&:to_i) <=> [2, 4]) < 0 %>

    # Note on units: when memory size is needed, it is possible to specifiy

    # it in the usual form of 1k 5GB 4M and so forth:

    #

    @@ -20,14 +20,21 @@ daemonize yes
  
    # default. You can specify a custom pid file location here.

    pidfile /var/run/redis.pid

    # Accept connections on the specified port, default is 6379

    # Accept connections on the specified port, default is 6379.

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

    port <%= @listen_port %>

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

    # specified all the interfaces will listen for incoming connections.

    #

    bind <%= @listen_addr %>

    # Specify the path for the unix socket that will be used to listen for

    # incoming connections. There is no default, so Redis will not listen

    # on a unix socket when not specified.

    #

    # unixsocket /tmp/redis.sock

    # Close the connection after a client is idle for N seconds (0 to disable)

    timeout 300

    @@ -37,17 +44,27 @@ timeout 300
  
    # 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 verbose

    loglevel <%= @loglevel %>

    # Specify the log file name. Also 'stdout' can be used to force

    # Redis to log on the standard output. Note that if you use standard

    # output for logging but daemonize, logs will be sent to /dev/null

    logfile /var/log/redis/redis-server.log

    # To enable logging to the system logger, just set 'syslog-enabled' to yes,

    # and optionally update the other syslog parameters to suit your needs.

    # syslog-enabled no

    # Specify the syslog identity.

    # syslog-ident redis

    # Specify the syslog facility.  Must be USER or between LOCAL0-LOCAL7.

    # syslog-facility local0

    # Set the number of databases. The default database is DB 0, you can select

    # a different one on a per-connection basis using SELECT <dbid> where

    # dbid is a number between 0 and 'databases'-1

    databases 16

    databases 100

    ################################ SNAPSHOTTING  #################################

    #

    @@ -65,9 +82,7 @@ databases 16
  
    #

    #   Note: you can disable saving at all commenting all the "save" lines.

    save 900 1

    save 300 10

    save 60 10000

    save <%= @save_interval %>

    # Compress string objects using LZF when dump .rdb databases?

    # For default that's set to 'yes' as it's almost always a win.

    @@ -82,11 +97,11 @@ dbfilename dump.rdb
  
    #

    # The DB will be written inside this directory, with the filename specified

    # above using the 'dbfilename' configuration directive.

    #

    # 

    # Also the Append Only File will be created inside this directory.

    #

    # 

    # Note that you must specify a directory here, not a file name.

    dir /var/lib/redis

    dir <%= @db_path %>

    ################################# REPLICATION #################################

    @@ -104,6 +119,19 @@ dir /var/lib/redis
  
    #

    # masterauth <master-password>

    # When a slave lost the connection with the master, or when the replication

    # is still in progress, the slave can act in two different ways:

    #

    # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will

    #    still reply to client requests, possibly with out of data data, or the

    #    data set may just be empty if this is the first synchronization.

    #

    # 2) if slave-serve-stale data is set to 'no' the slave will reply with

    #    an error "SYNC with master in progress" to all the kind of commands

    #    but to INFO and SLAVEOF.

    #

    slave-serve-stale-data yes

    ################################## SECURITY ###################################

    # Require clients to issue AUTH <PASSWORD> before processing any other

    @@ -112,13 +140,29 @@ dir /var/lib/redis
  
    #

    # This should stay commented out for backward compatibility and because most

    # people do not need auth (e.g. they run their own servers).

    #

    # 

    # Warning: since Redis is pretty fast an outside user can try up to

    # 150k passwords per second against a good box. This means that you should

    # use a very strong password otherwise it will be very easy to break.

    #

    # requirepass foobared

    # Command renaming.

    #

    # It is possilbe to change the name of dangerous commands in a shared

    # environment. For instance the CONFIG command may be renamed into something

    # of hard to guess so that it will be still available for internal-use

    # tools but not available for general clients.

    #

    # Example:

    #

    # rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52

    #

    # It is also possilbe to completely kill a command renaming it into

    # an empty string:

    #

    # rename-command CONFIG ""

    ################################### LIMITS ####################################

    # Set the max number of connected clients at the same time. By default there

    @@ -147,6 +191,41 @@ dir /var/lib/redis
  
    # errors for write operations, and this may even lead to DB inconsistency.

    #

    # maxmemory <bytes>

    <% if @maxmemory %>

    maxmemory <%= @maxmemory %>

    <% end %>

    # MAXMEMORY POLICY: how Redis will select what to remove when maxmemory

    # is reached? You can select among five behavior:

    # 

    # volatile-lru -> remove the key with an expire set using an LRU algorithm

    # allkeys-lru -> remove any key accordingly to the LRU algorithm

    # volatile-random -> remove a random key with an expire set

    # allkeys->random -> remove a random key, any key

    # volatile-ttl -> remove the key with the nearest expire time (minor TTL)

    # noeviction -> don't expire at all, just return an error on write operations

    # 

    # Note: with all the kind of policies, Redis will return an error on write

    #       operations, when there are not suitable keys for eviction.

    #

    #       At the date of writing this commands are: set setnx setex append

    #       incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd

    #       sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby

    #       zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby

    #       getset mset msetnx exec sort

    #

    # The default is:

    #

    # maxmemory-policy volatile-lru

    maxmemory-policy <%= @maxmemory_policy %>

    # LRU and minimal TTL algorithms are not precise algorithms but approximated

    # algorithms (in order to save memory), so you can select as well the sample

    # size to check. For instance for default Redis will check three keys and

    # pick the one that was used less recently, you can change the sample size

    # using the following configuration directive.

    #

    # maxmemory-samples 3

    ############################## APPEND ONLY MODE ###############################

    @@ -169,10 +248,10 @@ dir /var/lib/redis
  
    appendonly <%= @appendonly %>

    # The name of the append only file (default: "appendonly.aof")

    # appendfilename appendonly.aof

    #appendfilename appendonly.aof

    # The fsync() call tells the Operating System to actually write data on disk

    # instead to wait for more data in the output buffer. Some OS will really flush

    # instead to wait for more data in the output buffer. Some OS will really flush 

    # data on disk, some other OS will just try to do it ASAP.

    #

    # Redis supports three different modes:

    @@ -191,11 +270,31 @@ appendonly <%= @appendonly %>
  
    #

    # If unsure, use "everysec".

    # appendfsync always

    appendfsync <%= @appendfsync %>

    # appendfsync everysec

    # appendfsync no

    appendfsync <%= @appendfsync %>

    # When the AOF fsync policy is set to always or everysec, and a background

    # saving process (a background save or AOF log background rewriting) is

    # performing a lot of I/O against the disk, in some Linux configurations

    # Redis may block too long on the fsync() call. Note that there is no fix for

    # this currently, as even performing fsync in a different thread will block

    # our synchronous write(2) call.

    #

    # In order to mitigate this problem it's possible to use the following option

    # that will prevent fsync() from being called in the main process while a

    # BGSAVE or BGREWRITEAOF is in progress.

    #

    # This means that while another child is saving the durability of Redis is

    # the same as "appendfsync none", that in pratical terms means that it is

    # possible to lost up to 30 seconds of log in the worst scenario (with the

    # default Linux settings).

    # 

    # If you have latency problems turn this to "yes". Otherwise leave it as

    # "no" that is the safest pick from the point of view of durability.

    no-appendfsync-on-rewrite no

    <% if redis_2_4 -%>

    ################################ VIRTUAL MEMORY ###############################

    # Virtual Memory allows Redis to work with datasets bigger than the actual

    @@ -207,22 +306,21 @@ appendfsync <%= @appendfsync %>
  
    # 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

    vm-enabled <%= @vm[:enabled] %>

    # 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)

    # 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 /var/lib/redis/redis.swap

    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

    @@ -268,20 +366,31 @@ vm-pages <%= @vm[:pages] %>
  
    # The special value of 0 turn off threaded I/O and enables the blocking

    # Virtual Memory implementation.

    vm-max-threads <%= @vm[:max_threads] %>

    <% end -%>

    ############################### 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.

    hash-max-zipmap-entries 64

    hash-max-zipmap-value 512

    <% if redis_2_4 -%>

    hash-max-zipmap-entries <%= @hash_max_zipmap_entries %>

    hash-max-zipmap-value <%= @hash_max_zipmap_value %>

    <% end -%>

    # 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 <%= @list_max_ziplist_entries %>

    list-max-ziplist-value <%= @list_max_ziplist_value %>

    # 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

    # 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

    @@ -290,7 +399,7 @@ hash-max-zipmap-value 512
  
    # that is rhashing, the more rehashing "steps" are performed, so if the

    # server is idle the rehashing is never complete and some more memory is used

    # by the hash table.

    #

    # 

    # The default is to use this millisecond 10 times every second in order to

    # active rehashing the main dictionaries, freeing memory when possible.

    #

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