Question

为什么Mongo有时写，有时不写？代码可能会更好地了解我在说什么：

注意：

pmap是一个多线程映射。
db version v2.0.2，pdfile version 4.5

dbMongo = Mongo::Connection.new.db("test") #Mongo Database.
coll = dbMongo.collection("test-collection")
glob = Array.new

#///////Generates hashes////
(1...100).to_a.pmap(10) do |x|
  b_test = stack_hash(x) #generates an array of hashes
  glob << b_test
end

#///////Tests/////
glob = glob.flatten.uniq.compact 
p glob.length #=> 3027


p coll.drop #=> true
coll.insert(glob)
p coll.count.to_s + " <batch insert" #=> "2550 <batch insert"

p coll.drop #=> true
glob.each do |x|
  coll.insert(x)
end
p coll.count.to_s + " <single thread insert" #=> "3000 <single thread insert"


p coll.drop #=> true
glob.each do |x|
  sleep(0.1)
  coll.insert(x)
end
p coll.count.to_s + " <single thread slow insert" #=> "3000 <single thread slow insert"

Answer 1

您看到的错误是什么？您是否可以尝试将驱动程序设置为＆＃34; safe＆＃34;，以便您知道Mongo是否返回错误？

coll.insert(x, :safe => true)

MongoDB通过Ruby Wrapper编写持久性

1 个答案: