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Diffstat (limited to 'utils/redis-sha1.rb')
| -rw-r--r-- | utils/redis-sha1.rb | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/utils/redis-sha1.rb b/utils/redis-sha1.rb new file mode 100644 index 0000000..6a8b4f3 --- /dev/null +++ b/utils/redis-sha1.rb @@ -0,0 +1,52 @@ +# redis-sha1.rb - Copyright (C) 2009 Salvatore Sanfilippo +# BSD license, See the COPYING file for more information. +# +# Performs the SHA1 sum of the whole dataset. +# This is useful to spot bugs in persistence related code and to make sure +# Slaves and Masters are in SYNC. +# +# If you hack this code make sure to sort keys and set elements as this are +# unsorted elements. Otherwise the sum may differ with equal dataset. + +require 'rubygems' +require 'redis' +require 'digest/sha1' + +def redisSha1(opts={}) + sha1="" + r = Redis.new(opts) + r.keys('*').sort.each{|k| + vtype = r.type?(k) + if vtype == "string" + len = 1 + sha1 = Digest::SHA1.hexdigest(sha1+k) + sha1 = Digest::SHA1.hexdigest(sha1+r.get(k)) + elsif vtype == "list" + len = r.llen(k) + if len != 0 + sha1 = Digest::SHA1.hexdigest(sha1+k) + sha1 = Digest::SHA1.hexdigest(sha1+r.list_range(k,0,-1).join("\x01")) + end + elsif vtype == "set" + len = r.scard(k) + if len != 0 + sha1 = Digest::SHA1.hexdigest(sha1+k) + sha1 = Digest::SHA1.hexdigest(sha1+r.set_members(k).to_a.sort.join("\x02")) + end + elsif vtype == "zset" + len = r.zcard(k) + if len != 0 + sha1 = Digest::SHA1.hexdigest(sha1+k) + sha1 = Digest::SHA1.hexdigest(sha1+r.zrange(k,0,-1).join("\x01")) + end + end + # puts "#{k} => #{sha1}" if len != 0 + } + sha1 +end + +host = ARGV[0] || "127.0.0.1" +port = ARGV[1] || "6379" +db = ARGV[2] || "0" +puts "Performing SHA1 of Redis server #{host} #{port} DB: #{db}" +p "Dataset SHA1: #{redisSha1(:host => host, :port => port.to_i, :db => db)}" |