Aerospike記錄UDF是原子的嗎? function increment_and_expire(rec, incValue, expireThreshold, currentTime)
if aerospike:exists(rec) then
local timesUsed = rec['timesUsed']
if timesUsed == exp
如果我不喜歡 insert into sometable b + 10 from select b from (select b from sometable order by id desc limit 1)
查詢這是原子操作?也就是說,插入到sometable中是否可以更改b AFTER的值已被查詢,但在插入完成之前,導致插入獲得錯誤的值?
我有下面的代碼 #!/bin/env python
# http://stackoverflow.com/questions/32192938/order-of-subprocesses-execution-and-its-impact-on-operations-atomicity
from multiprocessing import Process
from multiprocess