Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/11645#discussion_r56740432
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/streaming/state/StateStoreSuite.scala
---
@@ -0,0 +1,471 @@
+/*
+ * 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.sql.execution.streaming.state
+
+import java.io.File
+
+import scala.collection.mutable
+import scala.util.Random
+
+import org.apache.hadoop.fs.Path
+import org.scalatest.{BeforeAndAfter, PrivateMethodTester}
+import org.scalatest.concurrent.Eventually._
+import org.scalatest.time.SpanSugar._
+
+import org.apache.spark.{SparkConf, SparkContext, SparkFunSuite}
+import org.apache.spark.LocalSparkContext._
+import org.apache.spark.sql.catalyst.InternalRow
+import org.apache.spark.sql.catalyst.expressions.GenericInternalRow
+import org.apache.spark.sql.catalyst.util.quietly
+import org.apache.spark.unsafe.types.UTF8String
+import org.apache.spark.util.Utils
+
+class StateStoreSuite extends SparkFunSuite with BeforeAndAfter with
PrivateMethodTester {
+ type MapType = mutable.HashMap[InternalRow, InternalRow]
+
+ import StateStoreCoordinatorSuite._
+ import StateStoreSuite._
+
+ private val tempDir = Utils.createTempDir().toString
+
+ after {
+ StateStore.stop()
+ }
+
+ test("update, remove, commit, and all data iterator") {
+ val provider = newStoreProvider()
+
+ // Verify state before starting a new set of updates
+ assert(provider.latestIterator().isEmpty)
+
+ val store = provider.getStore(0)
+ assert(!store.hasCommitted)
+ intercept[IllegalStateException] {
+ store.iterator()
+ }
+ intercept[IllegalStateException] {
+ store.updates()
+ }
+
+ // Verify state after updating
+ update(store, "a", 1)
+ intercept[IllegalStateException] {
+ store.iterator()
+ }
+ intercept[IllegalStateException] {
+ store.updates()
+ }
+ assert(provider.latestIterator().isEmpty)
+
+ // Make updates, commit and then verify state
+ update(store, "b", 2)
+ update(store, "aa", 3)
+ remove(store, _.startsWith("a"))
+ assert(store.commit() === 1)
+
+ assert(store.hasCommitted)
+ assert(unwrapToSet(store.iterator()) === Set("b" -> 2))
+ assert(unwrapToSet(provider.latestIterator()) === Set("b" -> 2))
+ assert(fileExists(provider, version = 1, isSnapshot = false))
+ assert(getDataFromFiles(provider) === Set("b" -> 2))
+
+ // Trying to get newer versions should fail
+ intercept[Exception] {
+ provider.getStore(2)
+ }
+ intercept[Exception] {
+ getDataFromFiles(provider, 2)
+ }
+
+ // New updates to the reloaded store with new version, and does not
change old version
+ val reloadedStore = new HDFSBackedStateStoreProvider(store.id,
provider.directory).getStore(1)
+ update(reloadedStore, "c", 4)
+ assert(reloadedStore.commit() === 2)
+ assert(unwrapToSet(reloadedStore.iterator()) === Set("b" -> 2, "c" ->
4))
+ assert(getDataFromFiles(provider) === Set("b" -> 2, "c" -> 4))
+ assert(getDataFromFiles(provider, version = 1) === Set("b" -> 2))
+ assert(getDataFromFiles(provider, version = 2) === Set("b" -> 2, "c"
-> 4))
+ }
+
+ test("updates iterator with all combos of updates and removes") {
+ val provider = newStoreProvider()
+ var currentVersion: Int = 0
+ def withStore(body: StateStore => Unit): Unit = {
+ val store = provider.getStore(currentVersion)
+ body(store)
+ currentVersion += 1
+ }
+
+ // New data should be seen in updates as value added, even if they had
multiple updates
+ withStore { store =>
+ update(store, "a", 1)
+ update(store, "aa", 1)
+ update(store, "aa", 2)
+ store.commit()
+ assert(unwrapUpdates(store.updates()) === Set(Added("a", 1),
Added("aa", 2)))
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 1, "aa" -> 2))
+ }
+
+ // Multiple updates to same key should be collapsed in the updates as
a single value update
+ // Keys that have not been updated should not appear in the updates
+ withStore { store =>
+ update(store, "a", 4)
+ update(store, "a", 6)
+ store.commit()
+ assert(unwrapUpdates(store.updates()) === Set(Updated("a", 6)))
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 6, "aa" -> 2))
+ }
+
+ // Keys added, updated and finally removed before commit should not
appear in updates
+ withStore { store =>
+ update(store, "b", 4) // Added, finally removed
+ update(store, "bb", 5) // Added, updated, finally removed
+ update(store, "bb", 6)
+ remove(store, _.startsWith("b"))
+ store.commit()
+ assert(unwrapUpdates(store.updates()) === Set.empty)
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 6, "aa" -> 2))
+ }
+
+ // Removed data should be seen in updates as a key removed
+ // Removed, but re-added data should be seen in updates as a value
update
+ withStore { store =>
+ remove(store, _.startsWith("a"))
+ update(store, "a", 10)
+ store.commit()
+ assert(unwrapUpdates(store.updates()) === Set(Updated("a", 10),
Removed("aa")))
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 10))
+ }
+ }
+
+ test("cancel") {
+ val provider = newStoreProvider()
+ val store = provider.getStore(0)
+ update(store, "a", 1)
+ store.commit()
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 1))
+
+ // cancelUpdates should not change the data in the files
+ val store1 = provider.getStore(1)
+ update(store1, "b", 1)
+ store1.cancel()
+ assert(getDataFromFiles(provider) === Set("a" -> 1))
+ }
+
+ test("getStore with unexpected versions") {
+ val provider = newStoreProvider()
+
+ intercept[IllegalArgumentException] {
+ provider.getStore(-1)
+ }
+
+ // Prepare some data in the stoer
+ val store = provider.getStore(0)
+ update(store, "a", 1)
+ assert(store.commit() === 1)
+ assert(unwrapToSet(store.iterator()) === Set("a" -> 1))
+
+ intercept[IllegalStateException] {
+ provider.getStore(2)
+ }
+
+ // Update store version with some data
+ val store1 = provider.getStore(1)
+ update(store1, "b", 1)
+ assert(store1.commit() === 2)
+ assert(unwrapToSet(store1.iterator()) === Set("a" -> 1, "b" -> 1))
+ assert(getDataFromFiles(provider) === Set("a" -> 1, "b" -> 1))
+
+ // Overwrite the version with other data
+ val store2 = provider.getStore(1)
+ update(store2, "c", 1)
+ assert(store2.commit() === 2)
+ assert(unwrapToSet(store2.iterator()) === Set("a" -> 1, "c" -> 1))
+ assert(getDataFromFiles(provider) === Set("a" -> 1, "c" -> 1))
+ }
+
+ test("snapshotting") {
+ val provider = newStoreProvider(maxDeltaChainForSnapshots = 5)
+
+ var currentVersion = 0
+ def updateVersionTo(targetVersion: Int): Unit = {
+ for (i <- currentVersion + 1 to targetVersion) {
+ val store = provider.getStore(currentVersion)
+ update(store, "a", i)
+ store.commit()
+ currentVersion += 1
+ }
+ require(currentVersion === targetVersion)
+ }
+
+ updateVersionTo(2)
+ require(getDataFromFiles(provider) === Set("a" -> 2))
+ provider.manage() // should not generate snapshot files
+ assert(getDataFromFiles(provider) === Set("a" -> 2))
+
+ for (i <- 1 to currentVersion) {
+ assert(fileExists(provider, i, isSnapshot = false)) // all delta
files present
+ assert(!fileExists(provider, i, isSnapshot = true)) // no snapshot
files present
+ }
+
+ // After version 6, snapshotting should generate one snapshot file
+ updateVersionTo(6)
+ require(getDataFromFiles(provider) === Set("a" -> 6), "store not
updated correctly")
+ provider.manage() // should generate snapshot files
+ assert(getDataFromFiles(provider) === Set("a" -> 6), "snapshotting
messed up the data")
+ assert(getDataFromFiles(provider) === Set("a" -> 6))
+
+ val snapshotVersion = (0 to 6).find(version => fileExists(provider,
version, isSnapshot = true))
+ assert(snapshotVersion.nonEmpty, "snapshot file not generated")
+
+ // After version 20, snapshotting should generate newer snapshot files
+ updateVersionTo(20)
+ require(getDataFromFiles(provider) === Set("a" -> 20), "store not
updated correctly")
+ provider.manage() // do snapshot
+ assert(getDataFromFiles(provider) === Set("a" -> 20), "snapshotting
messed up the data")
+ assert(getDataFromFiles(provider) === Set("a" -> 20))
+
+ val latestSnapshotVersion = (0 to 20).filter(version =>
+ fileExists(provider, version, isSnapshot = true)).lastOption
+ assert(latestSnapshotVersion.nonEmpty, "no snapshot file found")
+ assert(latestSnapshotVersion.get > snapshotVersion.get, "newer
snapshot not generated")
+
+ }
+
+ test("cleaning") {
+ val provider = newStoreProvider(maxDeltaChainForSnapshots = 5)
+
+ for (i <- 1 to 20) {
+ val store = provider.getStore(i - 1)
+ update(store, "a", i)
+ store.commit()
+ provider.manage() // do cleanup
+ }
+ require(
+ unwrapToSet(provider.latestIterator()) === Set("a" -> 20),
+ "store not updated correctly")
+
+ assert(!fileExists(provider, version = 1, isSnapshot = false)) //
first file should be deleted
+
+ // last couple of versions should be retrievable
+ assert(getDataFromFiles(provider, 20) === Set("a" -> 20))
+ assert(getDataFromFiles(provider, 19) === Set("a" -> 19))
+ }
+
+ test("StateStore.get") {
+ quietly {
+ val dir = Utils.createDirectory(tempDir,
Random.nextString(5)).toString
--- End diff --
The root `tempDir` is already a temporary directory.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
