Kevin Huang created SPARK-17467: ----------------------------------- Summary: Spark SQL: Return incorrect result for the data files on Swift Key: SPARK-17467 URL: https://issues.apache.org/jira/browse/SPARK-17467 Project: Spark Issue Type: Bug Components: SQL Affects Versions: 1.6.2 Reporter: Kevin Huang
I have an AVRO file on Swift(awclassic.avro). I ran Spark SQL to count its records, but got incorrect result. The file has 60855 records, but I got 42451. The following is the sample code I used: {code:java} public class SparkTest { public static void main(String[] args) throws InterruptedException, IOException { SparkConf sparkConf = new SparkConf() .setAppName("Spark-Swift-App") .setMaster("local[8]"); JavaSparkContext sparkContext = new JavaSparkContext(sparkConf); Configuration hadoopConf = sparkContext.hadoopConfiguration(); Configuration extraHadoopConf = new Configuration(false); extraHadoopConf.addResource("swift-site.xml"); // swift-site.xml is a customized file which is to store Swift configurations. hadoopConf.addResource(extraHadoopConf); SQLContext sqlContext = new SQLContext(sparkContext); DataFrame df = sqlContext.read().format("com.databricks.spark.avro").load("swift://bdd-edp.bddcs/awclassic/awclassic.avro"); df.registerTempTable("awclassic"); DataFrame result = sqlContext.sql("SELECT COUNT(*) FROM awclassic"); result.show(); } } {code} I also found an interesting thing: if I changed the value of fs.swift.blocksize, I got different results. For details, please see the following table. ||fs.swift.blocksize ||SELECT COUNT\(*\) FROM awclassic || |16384(16M) | 51683| |32768(32M) - default | 42451| |65536(64M) | 30459| -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org