表数据倾斜指的是特定的一些数据库分区上的某个表内的记录数与这个表所跨的所有数据库分区的平均记录数之间的差额。
Table data skew refers to a difference between the number of records in a table on particular database partitions and the average number of records across all database partitions for this table.
数据平衡指的是存储在各个数据库分区的记录的相对数量。
Data balancing refers to the relative number of records stored on each individual database partition.
如果各数据库分区存储的记录数不均,就会导致不均衡的存储需求和性能问题。
If records are stored unequally across the database partitions, it can result in disproportional storage requirements and performance problems.
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