jtmzheng commented on issue #7829:
URL: https://github.com/apache/hudi/issues/7829#issuecomment-1432525020
@alexeykudinkin sorry for the delay in response - we just have:
```
from pyspark.sql import functions as f
df = spark.read.format("parquet").load(INPUT_PATH) # eg. a MySQL table
snapshot
df = df.withColumn(
"_autogenerated_primary_key",
F.monotonically_increasing_id(),
)
df.write.format("hudi").save(OUTPUT_PATH)
```
We switched to using `uuid` and haven't seen the issue since - though this
is tricky to reproduce because the problem happens on Spark retries of key
generation
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