Research Article
Exploiting Sharing Join Opportunities in Big Data Multiquery Optimization with Flink
Table 4
The J-Moth Execution Time and Improvement Comparison using Flink Join Strategies.
| | Strategy | NT execution time (sec) | J-MOTH execution time (sec) | Improvement of J-MOTH wrt NT (%) |
| | BROADCAST_HASH_FIRST | 1703 | 1353 | 21 | | BROADCAST_HASH_SECOND | 1904 | 1403 | 26 | | REPARTITION_HASH_FIRST | 1453 | 1052 | 28 | | REPARTITION_HASH_SECOND | 1553 | 1152 | 26 | | REPARTITION_SORT_MERGE | 1904 | 1453 | 24 | | OPTIMIZER_CHOOSES | 1603 | 1202 | 25 |
|
|
