[jira] [Created] (SPARK-26031) dataframe can't load correct after saving to local disk in cluster mode

["Bihui Jin (JIRA)" <ji...@apache.org>]

Bihui Jin created SPARK-26031:
---------------------------------

             Summary: dataframe can't load correct after saving to local disk in cluster mode
                 Key: SPARK-26031
                 URL: https://issues.apache.org/jira/browse/SPARK-26031
             Project: Spark
          Issue Type: Bug
          Components: Structured Streaming
    Affects Versions: 2.3.1
         Environment: 1 spark master

3 spark slaves

 
            Reporter: Bihui Jin


Firstly I saved a spark dataframe to local disk in spark cluster mode with "

df.write \
.format('json') \
.save('file:///root/bughunter/', mode='overwrite')

" (using interface provide by {color:#FF0000}pyspark{color})

Then I load it with "

spark.read.format('json').load('file:///root/bughunter/')

"

But it faild with " org.apache.spark.sql.AnalysisException: Unable to infer schema for JSON. It must be specified manually."

And I check every node's disk:

In master:

only the file named "_SUCCESS" exists in /root/bughunter/;

In each slave, there is a folder named "_temporary" exists in /root/bughunter/

 



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