H13-831_V2.0 · Question #3824
During full data synchronization, DRS shards tables with a large number of records and uses multi- threaded concurrent synchronization to improve efficiency. Tables are typically sharded by primary…
The correct answer is B. The table is sharded with 520,000 records. The number of records remaining in the last shard may be C. The actual number of shards for all primary key tables in DRS may exceed 520,000. See the full explanation below for the reasoning.
Question
During full data synchronization, DRS shards tables with a large number of records and uses multi- threaded concurrent synchronization to improve efficiency. Tables are typically sharded by primary key, and each shard holds 520,000 records by default. During data synchronization, Xiao Ming discovered that a large table T1 with a primary key had been sharded. However, some shards held more than 520,000 records, while others held less than 520,000. Which of the following options are possible causes? (Multiple choice)
Options
- AThere is an error in DRS data sharding
- BThe table is sharded with 520,000 records. The number of records remaining in the last shard may be
- CThe actual number of shards for all primary key tables in DRS may exceed 520,000.
- DThe primary key of table T1 is a composite primary key
How the community answered
(49 responses)- A10% (5)
- B82% (40)
- D8% (4)
Topics
Community Discussion
No community discussion yet for this question.