0. Hive的语句执行顺序 from -> on -> join -> where -> group by -> having -> select -> distinct -> order -> limit Hive函数大致可以分为三类:UDF(用户自定义函数)、UDAF(用户自定义聚合函数)、UDTF...
1. 消息大小限制 在版本3.7中的源码,我们可以看到最大消息大小为2GiB。 274 %% Trying to send a term across a cluster larger than 2^31 bytes will 275 %% cause the VM to exit with "Absurdly large distribution output data 276 %% buffer". So we li...