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[SPARK-23518][SQL] Avoid metastore access when the users only want to read and write data frames #20681

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liufengdb wants to merge 4 commits into from
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[SPARK-23518][SQL] Avoid metastore access when the users only want to read and write data frames #20681

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292cbce
lazy
Feb 26, 2018
57f2a3d
comments
Feb 27, 2018
6a962e9
fix test
Feb 27, 2018
d0eacc2
remove the new dep
Mar 1, 2018
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remove the new dep
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Feng Liu committed Mar 1, 2018
commit d0eacc2048cf07193aca20f8011b677099884278
18 changes: 10 additions & 8 deletions ...erver/src/test/scala/org/apache/spark/sql/hive/HiveMetastoreLazyInitializationSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -19,19 +19,17 @@ package org.apache.spark.sql.hive

import org.apache.spark.SparkFunSuite
import org.apache.spark.sql.{AnalysisException, SparkSession}
import org.apache.spark.sql.test.SQLTestUtilsBase
import org.apache.spark.util.Utils

class HiveMetastoreLazyInitializationSuite extends SparkFunSuite with SQLTestUtilsBase {
class HiveMetastoreLazyInitializationSuite extends SparkFunSuite {

override def spark: SparkSession = SparkSession.builder()
test("lazily initialize Hive client") {
val spark = SparkSession.builder()
.appName("HiveMetastoreLazyInitializationSuite")
.master("local[2]")
.enableHiveSupport()
.config("spark.hadoop.hive.metastore.uris", "thrift://127.0.0.1:11111")
.getOrCreate()

test("lazily initialize Hive client") {
val originalLevel = org.apache.log4j.Logger.getRootLogger().getLevel
try {
// Avoid outputting a lot of expected warning logs
Expand All @@ -45,9 +43,13 @@ class HiveMetastoreLazyInitializationSuite extends SparkFunSuite with SQLTestUti
assert(spark.range(0, 1).count() === 1)

// We should be able to use fs
withTempPath { dir =>
spark.range(0, 1).write.parquet(dir.getAbsolutePath)
assert(spark.read.parquet(dir.getAbsolutePath).count() === 1)
val path = Utils.createTempDir()
path.delete()
try {
spark.range(0, 1).write.parquet(path.getAbsolutePath)
assert(spark.read.parquet(path.getAbsolutePath).count() === 1)
} finally {
Utils.deleteRecursively(path)
}

// Make sure that we are not using the local derby metastore.
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