Distributed-lock - Related information

• After querying the price of the order, the order is issued in batches, and the real time to deduct money is to receive the order, how to ensure that the account balance is sufficient?

  1. You can find out how much money you can get for each order first. Note: you can t inquire about it when you place an order. (the current consideration is to slow down the memory when querying, but if this order is checked, the order will not necessa...

  Distributed-lock concurrent redis java

  Mar.05,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-25b5451-1903.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-25b5451-1903.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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