云函数执行失败，报错

Uncaught (in promise) Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID b87388ca-652c-11ea-ab05-525400192d0e, cloud function service error code -504002, error message errCode: -1 unknown error | errMsg: collection.aggregate:fail Error: ESOCKETTIMEDOUT; at collection.aggregate api; 

Error: errCode: -1 unknown error | errMsg: collection.aggregate:fail Error: ESOCKETTIMEDOUT; at collection.aggregate api

针对6个集合，分别调用这个云函数，有5个集合可以正常执行，并返回想要的结果，只有中间第3个集合一直报错，但多试几次又能够执行成功1次