a half-covered face. I just looked at it and got married. You didn't dare! (In those years, CIEN threatened Yang to marry his elders and green eyes before he could get the antidote. Yang was not yet available !)
There is also an inventory story in terms of software quality. My experience is that quality is mainly not about how many people you have invested in building a large post-testing team, but about the timing and methods of testing, it is too
1. ConceptInventoryControl, manage and control resources, keep their reserves at a reasonable level of economy. EconomicInventory Control is an important part of warehouse management. WarehousingInventory Control needs to use information technology , every purchase is recorded, to have a library function, inventory val
all forwarded to a payment server, into the payment link, see who deft on hand, at this time less people, plus lock what is simple.
scenario Three, if it is a single server, you can use the Memcache lock to achieve
Product_key key for the ticket
Product_lock_key for ticket lock key
when Product_key is present in memcached, all users can enter the order process.
when entering the payment process, first store add (Product_lock_key, "1″") to Memcached,
If the return succeeds, enter the p
, into the payment link, see who deft on hand, at this time less people, plus lock what is simple.Scenario three, if it is a single server, you can use the memcache lock to achieveProduct_key Key for the ticketProduct_lock_key for Ticket lock keyWhen Product_key is present in memcached, all users can enter the order process.When entering the payment process, first store add (Product_lock_key, "1″") to memcached,If the return succeeds, enter the payment process.If not, it means that someone has e
static page after the activity ends,
Inform the routing server that it is not routed to this server (this is worth discussing ).
M/n * (1 + 0.1) people who come in from all product servers will be forwarded to one payment server. when the payment process starts, the number of people will be small, locking is simple.
Solution 3: Use the Memcache lock to implement a single server.
Product_key is the key of the ticket
Product_lock_key is the ticket lock key.
When product_key exists in memcached,
, into the payment link, see who deft on hand, at this time less people, plus lock what is simple.Scenario three, if it is a single server, you can use the memcache lock to achieveProduct_key Key for the ticketProduct_lock_key for Ticket lock keyWhen Product_key is present in memcached, all users can enter the order process.When entering the payment process, first store add (Product_lock_key, "1″") to memcached,If the return succeeds, enter the payment process.If not, it means that someone has e
, into the payment link, see who deft on hand, at this time less people, plus lock what is simple.Scenario three, if it is a single server, you can use the memcache lock to achieveProduct_key Key for the ticketProduct_lock_key for Ticket lock keyWhen Product_key is present in memcached, all users can enter the order process.When entering the payment process, first store add (Product_lock_key, "1″") to memcached,If the return succeeds, enter the payment process.If not, it means that someone has e
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