Re: Spark-2.0.0 fails reading a parquet dataset generated by Spark-1.6.2

2016-08-12 Thread Cheng Lian
OK, I've merged this PR to master and branch-2.0. On 8/11/16 8:27 AM, Cheng Lian wrote: Haven't figured out the exactly way how it failed, but the leading underscore in the partition directory name looks suspicious. Could you please try this PR to see whether it fixes the issue:

Re: Spark-2.0.0 fails reading a parquet dataset generated by Spark-1.6.2

2016-08-10 Thread Cheng Lian
Haven't figured out the exactly way how it failed, but the leading underscore in the partition directory name looks suspicious. Could you please try this PR to see whether it fixes the issue: https://github.com/apache/spark/pull/14585/files Cheng On 8/9/16 5:38 PM, immerrr again wrote:

Re: Spark-2.0.0 fails reading a parquet dataset generated by Spark-1.6.2

2016-08-09 Thread immerrr again
Another follow-up: I have narrowed it down to the first 32 partitions, but from that point it gets strange. Here's the error: In [68]: spark.read.parquet(*subdirs[:32]) ... AnalysisException: u'Unable to infer schema for ParquetFormat at

Re: Spark-2.0.0 fails reading a parquet dataset generated by Spark-1.6.2

2016-08-09 Thread immerrr again
Some follow-up information: - dataset size is ~150G - the data is partitioned by one of the columns, _locality_code: $ ls -1 _locality_code=AD _locality_code=AE _locality_code=AF _locality_code=AG _locality_code=AI _locality_code=AL _locality_code=AM _locality_code=AN _locality_code=YE

Spark-2.0.0 fails reading a parquet dataset generated by Spark-1.6.2

2016-08-09 Thread immerrr again
Hi everyone I tried upgrading Spark-1.6.2 to Spark-2.0.0 but run into an issue reading the existing data. Here's how the traceback looks in spark-shell: scala> spark.read.parquet("/path/to/data") org.apache.spark.sql.AnalysisException: Unable to infer schema for ParquetFormat at /path/to/data.