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Very slow performance
See original GitHub issueHi All,
Config - Databricks 6.6 (Spark 2.45) Target - Azure SQL DB Premium P4
This connector , code
FLOC_VW.write \ .format("com.microsoft.sqlserver.jdbc.spark") \ .mode("overwrite") \ .option("url", url) \ .option("dbtable", tableName) \ .option("user", Username) \ .option("password", Password) \ .option("BEST_EFFORT","true") \ .option("tabLock","true") \ .save()
Minutes taken - 53 on Average
Same configuration but - spark connector - Performance 4x faster <10 mins of average
Any suggestions where it could be going wrong?
Issue Analytics
- State:
- Created 3 years ago
- Comments:19 (6 by maintainers)
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I ran a benchmark comparing timing by inserting 50 million records in databases with different indexing strategy. You can find it here. Scroll down to the bottom so see comparison between old and new connector.
After disabling the schema check both of the connectors are comparable in performance. Thanks @shivsood for helping out. I will update my blog during this weekend.