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  • Problems with laravel Resource Controller

    1.laravel created a new resource controller class UserController extends Controller { public function index() { echo "i am index"; } public function create() { echo "i am create"; } pu...

    Dec.01,2021
  • How to solve the problem of hadoop resourcemanager error reporting by INTERNAL_SERVER_ERROR?

    problem description hive is stuck or has no speed while executing mapreduce read the log hadoop resourcemanager reported an error 2018-07-17 19br 17br the environmental background of the problems and what methods you have tried set up a hadoop c...

  • Is there a sequence in which threads compete for resources?

    suppose that thread 1 executes wait (), thread 2 to acquire lock resources, while thread 3 starts to execute synchronized to compete for lock resources, and thread 2 uses notifyAll () to wake up thread 1 before ending, so which thread 1 or thread 3 can ...

    Mar.26,2021
  • 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-64f5-1e79b01-77a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-1e79b01-77a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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