Athena error HIVE_BAD_DATA: Not valid Parquet file

Question

Hello,

I created a glue table with parquet serde initially.

```
Details:
input format: org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat
output format: org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat
serde: org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe
classification: parquet
```

Then I edited the table manually via console to use json serde.

```
Details:
input format: org.apache.hadoop.mapred.TextInputFormat
output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat
serde: org.openx.data.jsonserde.JsonSerDe
classification: json
```

The underlying s3 data is in json format.

Now when I try to query the data via Athena, I get the below error.

```
HIVE_BAD_DATA: Not valid Parquet file

```

It seems Athena is not picking up the updated glue details?
I tried MSCK repair on the table but it does not work.

Is there a way I can fix it without deleting the table?

Thanks.

Answer

Figured it.

If I drop the existing partitions and add it, Athena does not give error anymore.

I also tried to add more partitions after this, new partitions are taking json serde now.

Athena error HIVE_BAD_DATA: Not valid Parquet file

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