zhangstar333 75b55f8f2f [enhance](session)check invalid value when set parallel instance variables (#28141) ...

in some case, if set incorrectly, will be cause BE core dump

10:18:19   *** SIGFPE integer divide by zero (@0x564853c204c8) received by PID 2132555 
    int max_scanners =
            config::doris_scanner_thread_pool_thread_num / state->query_parallel_instance_num();

2023-12-08 17:38:48 +08:00

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[enhance](session)check invalid value when set parallel instance variables (#28141)

2023-12-08 17:38:48 +08:00