DRS in full data synchronization, will be a large number of tables sharded multi-thread concurrent...

Vendor: Huawei
Product: H13-831_V2.0
Update on: Oct 24, 2025
Questions: 498

Huawei H13-831_V2.0 Question Answer

DRS in full data synchronization, will be a large number of tables sharded multi-thread concurrent synchronization to improve efficiency, under normal circumstances the table will be sharded according to the primary key, and the default shards each shard 520000, once Bob found during data synchronization, there is a large table with a primary key T1 was divided into many shards, However, some shards have more than 5200 entries , and some shards have less than 520000 shards, which of the following options is the possible reason?

There is an error in DRS data sharding

The table is divided according to 520000 pieces, and the number of remaining articles may be less than 520000 in the last shard, so there will be a shortage

A shard of 520,000 exists

DRS may have more than 520,000 shards for all tables with primary keys

T1 The primary key of the table is a joint primary key