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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.storage
import org.scalatest.FunSuite
import java.io.File
import org.apache.spark.executor.ShuffleWriteMetrics
import org.apache.spark.serializer.JavaSerializer
import org.apache.spark.SparkConf
class BlockObjectWriterSuite extends FunSuite {
test("verify write metrics") {
val file = new File("somefile")
file.deleteOnExit()
val writeMetrics = new ShuffleWriteMetrics()
val writer = new DiskBlockObjectWriter(new TestBlockId("0"), file,
new JavaSerializer(new SparkConf()), 1024, os => os, true, writeMetrics)
writer.write(Long.box(20))
// Metrics don't update on every write
assert(writeMetrics.shuffleBytesWritten == 0)
// After 32 writes, metrics should update
for (i <- 0 until 32) {
writer.flush()
writer.write(Long.box(i))
}
assert(writeMetrics.shuffleBytesWritten > 0)
writer.commitAndClose()
assert(file.length() == writeMetrics.shuffleBytesWritten)
}
test("verify write metrics on revert") {
val file = new File("somefile")
file.deleteOnExit()
val writeMetrics = new ShuffleWriteMetrics()
val writer = new DiskBlockObjectWriter(new TestBlockId("0"), file,
new JavaSerializer(new SparkConf()), 1024, os => os, true, writeMetrics)
writer.write(Long.box(20))
// Metrics don't update on every write
assert(writeMetrics.shuffleBytesWritten == 0)
// After 32 writes, metrics should update
for (i <- 0 until 32) {
writer.flush()
writer.write(Long.box(i))
}
assert(writeMetrics.shuffleBytesWritten > 0)
writer.revertPartialWritesAndClose()
assert(writeMetrics.shuffleBytesWritten == 0)
}
}
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