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KAFKA-14592: Move FeatureCommand to tools (#13459)

KAFKA-14592: Move FeatureCommand to tools

Reviewers: Luke Chen <showuon@gmail.com>
pull/13544/head
Gantigmaa Selenge 2 years ago committed by GitHub
parent
commit
ea540fa400
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  1. 2
      bin/kafka-features.sh
  2. 17
      bin/windows/kafka-features.bat
  3. 1
      checkstyle/import-control.xml
  4. 304
      core/src/main/scala/kafka/admin/FeatureCommand.scala
  5. 327
      core/src/test/scala/unit/kafka/admin/FeatureCommandTest.scala
  6. 324
      tools/src/main/java/org/apache/kafka/tools/FeatureCommand.java
  7. 302
      tools/src/test/java/org/apache/kafka/tools/FeatureCommandTest.java
  8. 3
      tools/src/test/java/org/apache/kafka/tools/ToolsTestUtils.java

2
bin/kafka-features.sh

@ -14,4 +14,4 @@ @@ -14,4 +14,4 @@
# See the License for the specific language governing permissions and
# limitations under the License.
exec $(dirname $0)/kafka-run-class.sh kafka.admin.FeatureCommand "$@"
exec $(dirname $0)/kafka-run-class.sh org.apache.kafka.tools.FeatureCommand "$@"

17
bin/windows/kafka-features.bat

@ -0,0 +1,17 @@ @@ -0,0 +1,17 @@
@echo off
rem Licensed to the Apache Software Foundation (ASF) under one or more
rem contributor license agreements. See the NOTICE file distributed with
rem this work for additional information regarding copyright ownership.
rem The ASF licenses this file to You under the Apache License, Version 2.0
rem (the "License"); you may not use this file except in compliance with
rem the License. You may obtain a copy of the License at
rem
rem http://www.apache.org/licenses/LICENSE-2.0
rem
rem Unless required by applicable law or agreed to in writing, software
rem distributed under the License is distributed on an "AS IS" BASIS,
rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rem See the License for the specific language governing permissions and
rem limitations under the License.
"%~dp0kafka-run-class.bat" org.apache.kafka.tools.FeatureCommand %*

1
checkstyle/import-control.xml

@ -283,6 +283,7 @@ @@ -283,6 +283,7 @@
<subpackage name="tools">
<allow pkg="org.apache.kafka.common"/>
<allow pkg="org.apache.kafka.server.util" />
<allow pkg="org.apache.kafka.server.common" />
<allow pkg="org.apache.kafka.clients" />
<allow pkg="org.apache.kafka.clients.admin" />
<allow pkg="org.apache.kafka.clients.producer" />

304
core/src/main/scala/kafka/admin/FeatureCommand.scala

@ -17,306 +17,12 @@ @@ -17,306 +17,12 @@
package kafka.admin
import kafka.tools.TerseFailure
import kafka.utils.Exit
import net.sourceforge.argparse4j.ArgumentParsers
import net.sourceforge.argparse4j.impl.Arguments.{append, fileType, store, storeTrue}
import net.sourceforge.argparse4j.inf.{ArgumentParserException, Namespace, Subparsers}
import net.sourceforge.argparse4j.internal.HelpScreenException
import org.apache.kafka.clients.CommonClientConfigs
import org.apache.kafka.clients.admin.FeatureUpdate.UpgradeType
import org.apache.kafka.clients.admin.{Admin, FeatureUpdate, UpdateFeaturesOptions}
import org.apache.kafka.common.utils.Utils
import org.apache.kafka.server.common.MetadataVersion
import java.io.{File, PrintStream}
import java.util.Properties
import scala.concurrent.ExecutionException
import scala.jdk.CollectionConverters._
import scala.compat.java8.OptionConverters._
@deprecated(since = "3.5")
object FeatureCommand {
def main(args: Array[String]): Unit = {
val res = mainNoExit(args, System.out)
Exit.exit(res)
}
// This is used for integration tests in order to avoid killing the test with Exit.exit,
// and in order to capture the command output.
def mainNoExit(
args: Array[String],
out: PrintStream
): Int = {
val parser = ArgumentParsers.newArgumentParser("kafka-features")
.defaultHelp(true)
.description("This tool manages feature flags in Kafka.")
parser.addArgument("--bootstrap-server")
.help("A comma-separated list of host:port pairs to use for establishing the connection to the Kafka cluster.")
.required(true)
parser.addArgument("--command-config")
.`type`(fileType())
.help("Property file containing configs to be passed to Admin Client.")
val subparsers = parser.addSubparsers().dest("command")
addDescribeParser(subparsers)
addUpgradeParser(subparsers)
addDowngradeParser(subparsers)
addDisableParser(subparsers)
try {
val namespace = parser.parseArgs(args)
val command = namespace.getString("command")
val commandConfig = namespace.get[File]("command_config")
val props = if (commandConfig != null) {
if (!commandConfig.exists()) {
throw new TerseFailure(s"Properties file ${commandConfig.getPath} does not exists!")
}
Utils.loadProps(commandConfig.getPath)
} else {
new Properties()
}
props.put(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG, namespace.getString("bootstrap_server"))
val admin = Admin.create(props)
try {
command match {
case "describe" => handleDescribe(out, admin)
case "upgrade" => handleUpgrade(out, namespace, admin)
case "downgrade" => handleDowngrade(out, namespace, admin)
case "disable" => handleDisable(out, namespace, admin)
}
} finally {
admin.close()
}
0
} catch {
case _: HelpScreenException =>
0
case e: ArgumentParserException =>
System.err.println(s"Command line error: ${e.getMessage}. Type --help for help.")
1
case e: TerseFailure =>
System.err.println(e.getMessage)
1
}
}
def addDescribeParser(subparsers: Subparsers): Unit = {
subparsers.addParser("describe")
.help("Describes the current active feature flags.")
}
def addUpgradeParser(subparsers: Subparsers): Unit = {
val upgradeParser = subparsers.addParser("upgrade")
.help("Upgrade one or more feature flags.")
upgradeParser.addArgument("--metadata")
.help("The level to which we should upgrade the metadata. For example, 3.3-IV3.")
.action(store())
upgradeParser.addArgument("--feature")
.help("A feature upgrade we should perform, in feature=level format. For example: `metadata.version=5`.")
.action(append())
upgradeParser.addArgument("--dry-run")
.help("Validate this upgrade, but do not perform it.")
.action(storeTrue())
}
def addDowngradeParser(subparsers: Subparsers): Unit = {
val downgradeParser = subparsers.addParser("downgrade")
.help("Downgrade one or more feature flags.")
downgradeParser.addArgument("--metadata")
.help("The level to which we should downgrade the metadata. For example, 3.3-IV0.")
.action(store())
downgradeParser.addArgument("--feature")
.help("A feature downgrade we should perform, in feature=level format. For example: `metadata.version=5`.")
.action(append())
downgradeParser.addArgument("--unsafe")
.help("Perform this downgrade even if it may irreversibly destroy metadata.")
.action(storeTrue())
downgradeParser.addArgument("--dry-run")
.help("Validate this downgrade, but do not perform it.")
.action(storeTrue())
}
def addDisableParser(subparsers: Subparsers): Unit = {
val disableParser = subparsers.addParser("disable")
.help("Disable one or more feature flags. This is the same as downgrading the version to zero.")
disableParser.addArgument("--feature")
.help("A feature flag to disable.")
.action(append())
disableParser.addArgument("--unsafe")
.help("Disable this feature flag even if it may irreversibly destroy metadata.")
.action(storeTrue())
disableParser.addArgument("--dry-run")
.help("Perform a dry-run of this disable operation.")
.action(storeTrue())
}
def levelToString(
feature: String,
level: Short
): String = {
if (feature.equals(MetadataVersion.FEATURE_NAME))
try MetadataVersion.fromFeatureLevel(level).version
catch { case _: Throwable => s"UNKNOWN [$level]"}
else
level.toString
}
def handleDescribe(
out: PrintStream,
admin: Admin
): Unit = {
val featureMetadata = admin.describeFeatures().featureMetadata().get()
val featureList = new java.util.TreeSet[String](featureMetadata.supportedFeatures().keySet())
featureList.forEach { feature =>
val finalizedLevel = featureMetadata.finalizedFeatures().asScala.get(feature) match {
case None => 0.toShort
case Some(v) => v.maxVersionLevel()
}
val range = featureMetadata.supportedFeatures().get(feature)
out.printf("Feature: %s\tSupportedMinVersion: %s\tSupportedMaxVersion: %s\tFinalizedVersionLevel: %s\tEpoch: %s%n",
feature,
levelToString(feature, range.minVersion()),
levelToString(feature, range.maxVersion()),
levelToString(feature, finalizedLevel),
featureMetadata.finalizedFeaturesEpoch().asScala.flatMap(e => Some(e.toString)).getOrElse("-"))
}
}
def metadataVersionsToString(first: MetadataVersion, last: MetadataVersion): String = {
MetadataVersion.VERSIONS.toList.asJava.
subList(first.ordinal(), last.ordinal() + 1).
asScala.mkString(", ")
}
def handleUpgrade(out: PrintStream, namespace: Namespace, admin: Admin): Unit = {
handleUpgradeOrDowngrade("upgrade", out, namespace, admin, UpgradeType.UPGRADE)
}
def downgradeType(namespace: Namespace): UpgradeType = {
val unsafe = namespace.getBoolean("unsafe")
if (unsafe == null || !unsafe) {
UpgradeType.SAFE_DOWNGRADE
} else {
UpgradeType.UNSAFE_DOWNGRADE
}
}
def handleDowngrade(out: PrintStream, namespace: Namespace, admin: Admin): Unit = {
handleUpgradeOrDowngrade("downgrade", out, namespace, admin, downgradeType(namespace))
}
def parseNameAndLevel(input: String): (String, Short) = {
val equalsIndex = input.indexOf("=")
if (equalsIndex < 0) {
throw new TerseFailure(s"Can't parse feature=level string ${input}: equals sign not found.")
}
val name = input.substring(0, equalsIndex).trim
val levelString = input.substring(equalsIndex + 1).trim
val level =
try levelString.toShort
catch {
case _: Throwable => throw new TerseFailure(s"Can't parse feature=level string ${input}: " +
s"unable to parse ${levelString} as a short.")
}
(name, level)
}
def handleUpgradeOrDowngrade(
op: String,
out: PrintStream,
namespace: Namespace,
admin: Admin,
upgradeType: UpgradeType
): Unit = {
val updates = new java.util.HashMap[String, FeatureUpdate]()
Option(namespace.getString("metadata")).foreach(metadata => {
val version = try {
MetadataVersion.fromVersionString(metadata)
} catch {
case _: Throwable => throw new TerseFailure("Unsupported metadata version " + metadata +
". Supported metadata versions are " + metadataVersionsToString(
MetadataVersion.MINIMUM_BOOTSTRAP_VERSION, MetadataVersion.latest()))
}
updates.put(MetadataVersion.FEATURE_NAME, new FeatureUpdate(version.featureLevel(), upgradeType))
})
Option(namespace.getList[String]("feature")).foreach(features => {
features.forEach(feature => {
val (name, level) = parseNameAndLevel(feature)
if (updates.put(name, new FeatureUpdate(level, upgradeType)) != null) {
throw new TerseFailure(s"Feature ${name} was specified more than once.")
}
})
})
update(op, out, admin, updates, namespace.getBoolean("dry-run"))
}
def handleDisable(out: PrintStream, namespace: Namespace, admin: Admin): Unit = {
val upgradeType = downgradeType(namespace)
val updates = new java.util.HashMap[String, FeatureUpdate]()
Option(namespace.getList[String]("feature")).foreach(features => {
features.forEach(name =>
if (updates.put(name, new FeatureUpdate(0.toShort, upgradeType)) != null) {
throw new TerseFailure(s"Feature ${name} was specified more than once.")
})
}
)
update("disable", out, admin, updates, namespace.getBoolean("dry-run"))
}
def update(
op: String,
out: PrintStream,
admin: Admin,
updates: java.util.HashMap[String, FeatureUpdate],
dryRun: Boolean
): Unit = {
if (updates.isEmpty) {
throw new TerseFailure(s"You must specify at least one feature to ${op}")
}
val result = admin.updateFeatures(updates, new UpdateFeaturesOptions().validateOnly(dryRun))
val errors = result.values().asScala.map { case (feature, future) =>
try {
future.get()
feature -> None
} catch {
case e: ExecutionException => feature -> Some(e.getCause)
case t: Throwable => feature -> Some(t)
}
}
var numFailures = 0
errors.keySet.toList.sorted.foreach { feature =>
val maybeThrowable = errors(feature)
val level = updates.get(feature).maxVersionLevel()
if (maybeThrowable.isDefined) {
val helper = if (dryRun) {
"Can not"
} else {
"Could not"
}
val suffix = if (op.equals("disable")) {
s"disable ${feature}"
} else {
s"${op} ${feature} to ${level}"
}
out.println(s"${helper} ${suffix}. ${maybeThrowable.get.getMessage}")
numFailures = numFailures + 1
} else {
val verb = if (dryRun) {
"can be"
} else {
"was"
}
val obj = if (op.equals("disable")) {
"disabled."
} else {
s"${op}d to ${level}."
}
out.println(s"${feature} ${verb} ${obj}")
}
}
if (numFailures > 0) {
throw new TerseFailure(s"${numFailures} out of ${updates.size} operation(s) failed.")
}
println("WARNING: The 'kafka.tools' package is deprecated and will change to 'org.apache.kafka.tools' in the next major release.")
val toolClass = Class.forName("org.apache.kafka.tools.FeatureCommand")
val toolMethod = toolClass.getDeclaredMethod("main", classOf[Array[String]])
toolMethod.invoke(null, args)
}
}

327
core/src/test/scala/unit/kafka/admin/FeatureCommandTest.scala

@ -1,327 +0,0 @@ @@ -1,327 +0,0 @@
/**
* 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 kafka.admin
import kafka.api.IntegrationTestHarness
import kafka.server.KafkaConfig
import kafka.tools.TerseFailure
import kafka.utils.{TestInfoUtils, TestUtils}
import net.sourceforge.argparse4j.inf.Namespace
import org.apache.kafka.clients.admin.FeatureUpdate.UpgradeType.{SAFE_DOWNGRADE, UNSAFE_DOWNGRADE}
import org.apache.kafka.clients.admin.MockAdminClient
import org.apache.kafka.common.utils.Utils
import org.apache.kafka.server.common.MetadataVersion
import org.apache.kafka.server.common.MetadataVersion.{IBP_3_3_IV0, IBP_3_3_IV1, IBP_3_3_IV2, IBP_3_3_IV3, IBP_3_5_IV1}
import org.junit.jupiter.api.Assertions.{assertEquals, assertThrows}
import org.junit.jupiter.api.Test
import org.junit.jupiter.params.ParameterizedTest
import org.junit.jupiter.params.provider.ValueSource
import java.io.{ByteArrayOutputStream, PrintStream}
import java.{lang, util}
import java.util.Collections.{emptyMap, singletonMap}
import scala.jdk.CollectionConverters._
case class FeatureCommandTestEnv(admin: MockAdminClient = null) extends AutoCloseable {
val stream = new ByteArrayOutputStream()
val out = new PrintStream(stream)
override def close(): Unit = {
Utils.closeAll(stream, out)
Utils.closeQuietly(admin, "admin")
}
def outputWithoutEpoch(): String = {
val lines = stream.toString.split(String.format("%n"))
lines.map { line =>
val pos = line.indexOf("Epoch: ")
if (pos > 0) {
line.substring(0, pos)
} else {
line
}
}.mkString(String.format("%n"))
}
}
class FeatureCommandTest extends IntegrationTestHarness {
override def brokerCount: Int = 1
override protected def metadataVersion: MetadataVersion = IBP_3_3_IV1
serverConfig.setProperty(KafkaConfig.InterBrokerProtocolVersionProp, metadataVersion.toString)
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("zk"))
def testDescribeWithZk(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(0, FeatureCommand.mainNoExit(
Array("--bootstrap-server", bootstrapServers(), "describe"), env.out))
assertEquals("", env.outputWithoutEpoch())
}
}
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("kraft"))
def testDescribeWithKRaft(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(0, FeatureCommand.mainNoExit(
Array("--bootstrap-server", bootstrapServers(), "describe"), env.out))
assertEquals(String.format(
"Feature: metadata.version\tSupportedMinVersion: 3.0-IV1\t" +
"SupportedMaxVersion: 3.5-IV2\tFinalizedVersionLevel: 3.3-IV1\t"),
env.outputWithoutEpoch())
}
}
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("zk"))
def testUpgradeMetadataVersionWithZk(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"upgrade", "--metadata", "3.3-IV2"), env.out))
assertEquals("Could not upgrade metadata.version to 6. Could not apply finalized feature " +
"update because the provided feature is not supported.", env.outputWithoutEpoch())
}
}
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("kraft"))
def testUpgradeMetadataVersionWithKraft(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(0, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"upgrade", "--feature", "metadata.version=5"), env.out))
assertEquals("metadata.version was upgraded to 5.", env.outputWithoutEpoch())
}
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(0, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"upgrade", "--metadata", "3.3-IV2"), env.out))
assertEquals("metadata.version was upgraded to 6.", env.outputWithoutEpoch())
}
}
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("zk"))
def testDowngradeMetadataVersionWithZk(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"disable", "--feature", "metadata.version"), env.out))
assertEquals("Could not disable metadata.version. Can not delete non-existing finalized feature.",
env.outputWithoutEpoch())
}
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"downgrade", "--metadata", "3.3-IV0"), env.out))
assertEquals("Could not downgrade metadata.version to 4. Could not apply finalized feature " +
"update because the provided feature is not supported.", env.outputWithoutEpoch())
}
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"downgrade", "--unsafe", "--metadata", "3.3-IV0"), env.out))
assertEquals("Could not downgrade metadata.version to 4. Could not apply finalized feature " +
"update because the provided feature is not supported.", env.outputWithoutEpoch())
}
}
@ParameterizedTest(name = TestInfoUtils.TestWithParameterizedQuorumName)
@ValueSource(strings = Array("kraft"))
def testDowngradeMetadataVersionWithKRaft(quorum: String): Unit = {
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"disable", "--feature", "metadata.version"), env.out))
assertEquals("Could not disable metadata.version. Invalid update version 0 for feature " +
"metadata.version. Local controller 1000 only supports versions 1-11", env.outputWithoutEpoch())
}
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"downgrade", "--metadata", "3.3-IV0"), env.out))
assertEquals("Could not downgrade metadata.version to 4. Invalid metadata.version 4. " +
"Refusing to perform the requested downgrade because it might delete metadata information. " +
"Retry using UNSAFE_DOWNGRADE if you want to force the downgrade to proceed.", env.outputWithoutEpoch())
}
TestUtils.resource(FeatureCommandTestEnv()) { env =>
assertEquals(1, FeatureCommand.mainNoExit(Array("--bootstrap-server", bootstrapServers(),
"downgrade", "--unsafe", "--metadata", "3.3-IV0"), env.out))
assertEquals("Could not downgrade metadata.version to 4. Invalid metadata.version 4. " +
"Unsafe metadata downgrade is not supported in this version.", env.outputWithoutEpoch())
}
}
}
class FeatureCommandUnitTest {
@Test
def testLevelToString(): Unit = {
assertEquals("5", FeatureCommand.levelToString("foo.bar", 5.toShort))
assertEquals("3.3-IV0",
FeatureCommand.levelToString(MetadataVersion.FEATURE_NAME, IBP_3_3_IV0.featureLevel()))
}
@Test
def testMetadataVersionsToString(): Unit = {
assertEquals("3.3-IV0, 3.3-IV1, 3.3-IV2, 3.3-IV3, 3.4-IV0, 3.5-IV0, 3.5-IV1",
FeatureCommand.metadataVersionsToString(IBP_3_3_IV0, IBP_3_5_IV1))
}
@Test
def testdowngradeType(): Unit = {
assertEquals(SAFE_DOWNGRADE, FeatureCommand.downgradeType(
new Namespace(singletonMap("unsafe", java.lang.Boolean.valueOf(false)))))
assertEquals(UNSAFE_DOWNGRADE, FeatureCommand.downgradeType(
new Namespace(singletonMap("unsafe", java.lang.Boolean.valueOf(true)))))
assertEquals(SAFE_DOWNGRADE, FeatureCommand.downgradeType(new Namespace(emptyMap())))
}
@Test
def testParseNameAndLevel(): Unit = {
assertEquals(("foo.bar", 5.toShort), FeatureCommand.parseNameAndLevel("foo.bar=5"))
assertEquals(("quux", 0.toShort), FeatureCommand.parseNameAndLevel(" quux=0"))
assertEquals("Can't parse feature=level string baaz: equals sign not found.",
assertThrows(classOf[TerseFailure],
() => FeatureCommand.parseNameAndLevel("baaz")).getMessage)
assertEquals("Can't parse feature=level string w=tf: unable to parse tf as a short.",
assertThrows(classOf[TerseFailure],
() => FeatureCommand.parseNameAndLevel("w=tf")).getMessage)
}
def buildAdminClient1(): MockAdminClient = {
new MockAdminClient.Builder().
minSupportedFeatureLevels(Map(
MetadataVersion.FEATURE_NAME -> lang.Short.valueOf(IBP_3_3_IV0.featureLevel()),
"foo.bar" -> lang.Short.valueOf(0.toShort)
).asJava).
featureLevels(Map(
MetadataVersion.FEATURE_NAME -> lang.Short.valueOf(IBP_3_3_IV2.featureLevel()),
"foo.bar" -> lang.Short.valueOf(5.toShort)
).asJava).
maxSupportedFeatureLevels(Map(
MetadataVersion.FEATURE_NAME -> lang.Short.valueOf(IBP_3_3_IV3.featureLevel()),
"foo.bar" -> lang.Short.valueOf(10.toShort)
).asJava).
build()
}
@Test
def testHandleDescribe(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
FeatureCommand.handleDescribe(env.out, env.admin)
assertEquals(String.format(
"Feature: foo.bar\tSupportedMinVersion: 0\tSupportedMaxVersion: 10\tFinalizedVersionLevel: 5\tEpoch: 123%n" +
"Feature: metadata.version\tSupportedMinVersion: 3.3-IV0\tSupportedMaxVersion: 3.3-IV3\tFinalizedVersionLevel: 3.3-IV2\tEpoch: 123%n"),
env.stream.toString)
}
}
@Test
def testHandleUpgrade(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 2 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleUpgrade(env.out, new Namespace(Map(
"metadata" -> "3.3-IV1",
"feature" -> util.Arrays.asList("foo.bar=6")
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar was upgraded to 6.%n" +
"Could not upgrade metadata.version to 5. Can't upgrade to lower version.%n"),
env.stream.toString)
}
}
@Test
def testHandleUpgradeDryRun(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 2 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleUpgrade(env.out, new Namespace(Map(
"metadata" -> "3.3-IV1",
"feature" -> util.Arrays.asList("foo.bar=6"),
"dry-run" -> java.lang.Boolean.valueOf(true)
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar can be upgraded to 6.%n" +
"Can not upgrade metadata.version to 5. Can't upgrade to lower version.%n"),
env.stream.toString)
}
}
@Test
def testHandleDowngrade(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 2 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleDowngrade(env.out, new Namespace(Map(
"metadata" -> "3.3-IV3",
"feature" -> util.Arrays.asList("foo.bar=1")
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar was downgraded to 1.%n" +
"Could not downgrade metadata.version to 7. Can't downgrade to newer version.%n"),
env.stream.toString)
}
}
@Test
def testHandleDowngradeDryRun(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 2 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleDowngrade(env.out, new Namespace(Map(
"metadata" -> "3.3-IV3",
"feature" -> util.Arrays.asList("foo.bar=1"),
"dry-run" -> java.lang.Boolean.valueOf(true)
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar can be downgraded to 1.%n" +
"Can not downgrade metadata.version to 7. Can't downgrade to newer version.%n"),
env.stream.toString)
}
}
@Test
def testHandleDisable(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 3 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleDisable(env.out, new Namespace(Map[String, AnyRef](
"feature" -> util.Arrays.asList("foo.bar", "metadata.version", "quux")
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar was disabled.%n" +
"Could not disable metadata.version. Can't downgrade below 4%n" +
"quux was disabled.%n"),
env.stream.toString)
}
}
@Test
def testHandleDisableDryRun(): Unit = {
TestUtils.resource(FeatureCommandTestEnv(buildAdminClient1())) { env =>
assertEquals("1 out of 3 operation(s) failed.",
assertThrows(classOf[TerseFailure], () =>
FeatureCommand.handleDisable(env.out, new Namespace(Map[String, AnyRef](
"feature" -> util.Arrays.asList("foo.bar", "metadata.version", "quux"),
"dry-run" -> java.lang.Boolean.valueOf(true)
).asJava), env.admin)).getMessage)
assertEquals(String.format(
"foo.bar can be disabled.%n" +
"Can not disable metadata.version. Can't downgrade below 4%n" +
"quux can be disabled.%n"),
env.stream.toString)
}
}
}

324
tools/src/main/java/org/apache/kafka/tools/FeatureCommand.java

@ -0,0 +1,324 @@ @@ -0,0 +1,324 @@
/*
* 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.kafka.tools;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Properties;
import java.util.TreeMap;
import java.util.concurrent.ExecutionException;
import java.util.stream.Collectors;
import net.sourceforge.argparse4j.ArgumentParsers;
import net.sourceforge.argparse4j.impl.Arguments;
import net.sourceforge.argparse4j.inf.ArgumentParser;
import net.sourceforge.argparse4j.inf.ArgumentParserException;
import net.sourceforge.argparse4j.inf.Namespace;
import net.sourceforge.argparse4j.inf.Subparser;
import net.sourceforge.argparse4j.inf.Subparsers;
import net.sourceforge.argparse4j.internal.HelpScreenException;
import org.apache.kafka.clients.admin.Admin;
import org.apache.kafka.clients.admin.FeatureMetadata;
import org.apache.kafka.clients.admin.FeatureUpdate;
import org.apache.kafka.clients.admin.SupportedVersionRange;
import org.apache.kafka.clients.admin.UpdateFeaturesOptions;
import org.apache.kafka.clients.admin.UpdateFeaturesResult;
import org.apache.kafka.common.utils.Exit;
import org.apache.kafka.common.utils.Utils;
import org.apache.kafka.server.common.MetadataVersion;
import static net.sourceforge.argparse4j.impl.Arguments.append;
import static net.sourceforge.argparse4j.impl.Arguments.store;
import static net.sourceforge.argparse4j.impl.Arguments.storeTrue;
public class FeatureCommand {
public static void main(String... args) {
Exit.exit(mainNoExit(args));
}
static int mainNoExit(String... args) {
try {
execute(args);
return 0;
} catch (HelpScreenException e) {
return 0;
} catch (ArgumentParserException e) {
System.err.printf("Command line error: " + e.getMessage() + ". Type --help for help.");
return 1;
} catch (Throwable e) {
System.err.println(e.getMessage());
return 1;
}
}
static void execute(String... args) throws Exception {
ArgumentParser parser = ArgumentParsers
.newArgumentParser("kafka-features")
.defaultHelp(true)
.description("This tool manages feature flags in Kafka.");
parser
.addArgument("--bootstrap-server")
.help("A comma-separated list of host:port pairs to use for establishing the connection to the Kafka cluster.")
.required(true);
parser
.addArgument("--command-config")
.type(Arguments.fileType())
.help("Property file containing configs to be passed to Admin Client.");
Subparsers subparsers = parser.addSubparsers().dest("command");
addDescribeParser(subparsers);
addUpgradeParser(subparsers);
addDowngradeParser(subparsers);
addDisableParser(subparsers);
Namespace namespace = parser.parseArgsOrFail(args);
String command = namespace.getString("command");
String configPath = namespace.getString("command_config");
Properties properties = (configPath == null) ? new Properties() : Utils.loadProps(configPath);
String bootstrapServer = namespace.getString("bootstrap_server");
if (bootstrapServer != null) {
properties.setProperty("bootstrap.servers", bootstrapServer);
}
if (properties.getProperty("bootstrap.servers") == null) {
throw new TerseException("Please specify --bootstrap-server.");
}
try (Admin adminClient = Admin.create(properties)) {
switch (command) {
case "describe":
handleDescribe(adminClient);
break;
case "upgrade":
handleUpgrade(namespace, adminClient);
break;
case "downgrade":
handleDowngrade(namespace, adminClient);
break;
case "disable":
handleDisable(namespace, adminClient);
break;
default:
throw new TerseException("Unknown command " + command);
}
}
}
private static void addDescribeParser(Subparsers subparsers) {
subparsers.addParser("describe")
.help("Describes the current active feature flags.");
}
private static void addUpgradeParser(Subparsers subparsers) {
Subparser upgradeParser = subparsers.addParser("upgrade")
.help("Upgrade one or more feature flags.");
upgradeParser.addArgument("--metadata")
.help("The level to which we should upgrade the metadata. For example, 3.3-IV3.")
.action(store());
upgradeParser.addArgument("--feature")
.help("A feature upgrade we should perform, in feature=level format. For example: `metadata.version=5`.")
.action(append());
upgradeParser.addArgument("--dry-run")
.help("Validate this upgrade, but do not perform it.")
.action(storeTrue());
}
private static void addDowngradeParser(Subparsers subparsers) {
Subparser downgradeParser = subparsers.addParser("downgrade")
.help("Upgrade one or more feature flags.");
downgradeParser.addArgument("--metadata")
.help("The level to which we should downgrade the metadata. For example, 3.3-IV0.")
.action(store());
downgradeParser.addArgument("--feature")
.help("A feature downgrade we should perform, in feature=level format. For example: `metadata.version=5`.")
.action(append());
downgradeParser.addArgument("--unsafe")
.help("Perform this downgrade even if it may irreversibly destroy metadata.")
.action(storeTrue());
downgradeParser.addArgument("--dry-run")
.help("Validate this downgrade, but do not perform it.")
.action(storeTrue());
}
private static void addDisableParser(Subparsers subparsers) {
Subparser downgradeParser = subparsers.addParser("disable")
.help("Disable one or more feature flags. This is the same as downgrading the version to zero.");
downgradeParser.addArgument("--feature")
.help("A feature flag to disable.")
.action(append());
downgradeParser.addArgument("--unsafe")
.help("Disable this feature flag even if it may irreversibly destroy metadata.")
.action(storeTrue());
downgradeParser.addArgument("--dry-run")
.help("Perform a dry-run of this disable operation.")
.action(storeTrue());
}
static String levelToString(String feature, short level) {
if (feature.equals(MetadataVersion.FEATURE_NAME)) {
try {
return MetadataVersion.fromFeatureLevel(level).version();
} catch (Throwable e) {
return "UNKNOWN " + level;
}
}
return String.valueOf(level);
}
static void handleDescribe(Admin adminClient) throws ExecutionException, InterruptedException {
FeatureMetadata featureMetadata = adminClient.describeFeatures().featureMetadata().get();
featureMetadata.supportedFeatures().keySet().stream().sorted().forEach(feature -> {
short finalizedLevel = (featureMetadata.finalizedFeatures().get(feature) == null) ? 0 : featureMetadata.finalizedFeatures().get(feature).maxVersionLevel();
SupportedVersionRange range = featureMetadata.supportedFeatures().get(feature);
System.out.printf("Feature: %s\tSupportedMinVersion: %s\tSupportedMaxVersion: %s\tFinalizedVersionLevel: %s\tEpoch: %s%n",
feature,
levelToString(feature, range.minVersion()),
levelToString(feature, range.maxVersion()),
levelToString(feature, finalizedLevel),
(featureMetadata.finalizedFeaturesEpoch().isPresent()) ? featureMetadata.finalizedFeaturesEpoch().get().toString() : "-");
});
}
static String metadataVersionsToString(MetadataVersion first, MetadataVersion last) {
List<MetadataVersion> versions = Arrays.asList(MetadataVersion.VERSIONS).subList(first.ordinal(), last.ordinal() + 1);
return versions.stream()
.map(String::valueOf)
.collect(Collectors.joining(", "));
}
static void handleUpgrade(Namespace namespace, Admin adminClient) throws TerseException {
handleUpgradeOrDowngrade("upgrade", namespace, adminClient, FeatureUpdate.UpgradeType.UPGRADE);
}
static FeatureUpdate.UpgradeType downgradeType(Namespace namespace) {
Boolean unsafe = namespace.getBoolean("unsafe");
if (unsafe == null || !unsafe) {
return FeatureUpdate.UpgradeType.SAFE_DOWNGRADE;
} else {
return FeatureUpdate.UpgradeType.UNSAFE_DOWNGRADE;
}
}
static void handleDowngrade(Namespace namespace, Admin adminClient) throws TerseException {
handleUpgradeOrDowngrade("downgrade", namespace, adminClient, downgradeType(namespace));
}
static String[] parseNameAndLevel(String input) {
int equalsIndex = input.indexOf("=");
if (equalsIndex < 0) {
throw new RuntimeException("Can't parse feature=level string " + input + ": equals sign not found.");
}
String name = input.substring(0, equalsIndex).trim();
String levelString = input.substring(equalsIndex + 1).trim();
try {
Short.parseShort(levelString);
} catch (Throwable t) {
throw new RuntimeException("Can't parse feature=level string " + input + ": " +
"unable to parse " + levelString + " as a short.");
}
return new String[]{name, levelString};
}
private static void handleUpgradeOrDowngrade(String op, Namespace namespace, Admin admin, FeatureUpdate.UpgradeType upgradeType) throws TerseException {
Map<String, FeatureUpdate> updates = new HashMap<>();
MetadataVersion version;
String metadata = namespace.getString("metadata");
if (metadata != null) {
try {
version = MetadataVersion.fromVersionString(metadata);
} catch (Throwable e) {
throw new TerseException("Unsupported metadata version " + metadata +
". Supported metadata versions are " + metadataVersionsToString(
MetadataVersion.MINIMUM_BOOTSTRAP_VERSION, MetadataVersion.latest()));
}
updates.put(MetadataVersion.FEATURE_NAME, new FeatureUpdate(version.featureLevel(), upgradeType));
}
List<String> features = namespace.getList("feature");
if (features != null) {
features.forEach(feature -> {
String[] nameAndLevel;
nameAndLevel = parseNameAndLevel(feature);
if (updates.put(nameAndLevel[0], new FeatureUpdate(Short.parseShort(nameAndLevel[1]), upgradeType)) != null) {
throw new RuntimeException("Feature " + nameAndLevel[0] + " was specified more than once.");
}
});
}
update(op, admin, updates, namespace.getBoolean("dry_run"));
}
static void handleDisable(Namespace namespace, Admin adminClient) throws TerseException {
FeatureUpdate.UpgradeType upgradeType = downgradeType(namespace);
Map<String, FeatureUpdate> updates = new HashMap<>();
List<String> features = namespace.getList("feature");
if (features != null) {
features.forEach(feature -> {
if (updates.put(feature, new FeatureUpdate((short) 0, upgradeType)) != null) {
throw new RuntimeException("Feature " + feature + " was specified more than once.");
}
});
}
update("disable", adminClient, updates, namespace.getBoolean("dry_run"));
}
private static void update(String op, Admin admin, Map<String, FeatureUpdate> updates, Boolean dryRun) throws TerseException {
if (updates.isEmpty()) {
throw new TerseException("You must specify at least one feature to " + op);
}
UpdateFeaturesResult result = admin.updateFeatures(updates, new UpdateFeaturesOptions().validateOnly(dryRun));
Map<String, Optional<Throwable>> errors = new TreeMap<>();
result.values().forEach((feature, future) -> {
try {
future.get();
errors.put(feature, null);
} catch (ExecutionException e) {
errors.put(feature, Optional.ofNullable(e.getCause()));
} catch (Throwable t) {
errors.put(feature, Optional.of(t));
}
});
int numFailures = 0;
for (Map.Entry<String, Optional<Throwable>> feature: errors.entrySet()) {
short level = updates.get(feature.getKey()).maxVersionLevel();
Optional<Throwable> maybeThrowable = feature.getValue();
if (maybeThrowable != null && maybeThrowable.isPresent()) {
String helper = dryRun ? "Can not " : "Could not ";
String suffix = (op.equals("disable")) ? "disable " + feature.getKey() : op + " " + feature.getKey() + " to " + level;
System.out.println(helper + suffix + ". " + maybeThrowable.get().getMessage());
numFailures++;
} else {
String verb = dryRun ? " can be " : " was ";
String obj = (op.equals("disable")) ? "disabled." : op + "d to " + level + ".";
System.out.println(feature.getKey() + verb + obj);
}
}
if (numFailures > 0) {
throw new TerseException(numFailures + " out of " + updates.size() + " operation(s) failed.");
}
}
}

302
tools/src/test/java/org/apache/kafka/tools/FeatureCommandTest.java

@ -0,0 +1,302 @@ @@ -0,0 +1,302 @@
/*
* 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.kafka.tools;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import kafka.test.ClusterInstance;
import kafka.test.annotation.ClusterTest;
import kafka.test.annotation.ClusterTestDefaults;
import kafka.test.annotation.Type;
import kafka.test.junit.ClusterTestExtensions;
import net.sourceforge.argparse4j.inf.Namespace;
import org.apache.kafka.clients.admin.MockAdminClient;
import org.apache.kafka.server.common.MetadataVersion;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import static java.lang.String.format;
import static java.util.Collections.emptyMap;
import static java.util.Collections.singletonMap;
import static org.apache.kafka.clients.admin.FeatureUpdate.UpgradeType.SAFE_DOWNGRADE;
import static org.apache.kafka.clients.admin.FeatureUpdate.UpgradeType.UNSAFE_DOWNGRADE;
import static org.junit.jupiter.api.Assertions.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
@ExtendWith(value = ClusterTestExtensions.class)
@ClusterTestDefaults(clusterType = Type.KRAFT)
@Tag("integration")
public class FeatureCommandTest {
private final ClusterInstance cluster;
public FeatureCommandTest(ClusterInstance cluster) {
this.cluster = cluster;
}
@ClusterTest(clusterType = Type.ZK, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testDescribeWithZK() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(0, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(), "describe"))
);
assertEquals("", commandOutput);
}
@ClusterTest(clusterType = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testDescribeWithKRaft() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(0, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(), "describe"))
);
assertEquals("Feature: metadata.version\tSupportedMinVersion: 3.0-IV1\t" +
"SupportedMaxVersion: 3.5-IV2\tFinalizedVersionLevel: 3.3-IV1\t", outputWithoutEpoch(commandOutput));
}
@ClusterTest(clusterType = Type.ZK, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testUpgradeMetadataVersionWithZk() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"upgrade", "--metadata", "3.3-IV2"))
);
assertEquals("Could not upgrade metadata.version to 6. Could not apply finalized feature " +
"update because the provided feature is not supported.", commandOutput);
}
@ClusterTest(clusterType = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testUpgradeMetadataVersionWithKraft() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(0, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"upgrade", "--feature", "metadata.version=5"))
);
assertEquals("metadata.version was upgraded to 5.", commandOutput);
commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(0, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"upgrade", "--metadata", "3.3-IV2"))
);
assertEquals("metadata.version was upgraded to 6.", commandOutput);
}
@ClusterTest(clusterType = Type.ZK, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testDowngradeMetadataVersionWithZk() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"disable", "--feature", "metadata.version"))
);
assertEquals("Could not disable metadata.version. Can not delete non-existing finalized feature.", commandOutput);
commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"downgrade", "--metadata", "3.3-IV0"))
);
assertEquals("Could not downgrade metadata.version to 4. Could not apply finalized feature " +
"update because the provided feature is not supported.", commandOutput);
commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"downgrade", "--unsafe", "--metadata", "3.3-IV0"))
);
assertEquals("Could not downgrade metadata.version to 4. Could not apply finalized feature " +
"update because the provided feature is not supported.", commandOutput);
}
@ClusterTest(clusterType = Type.KRAFT, metadataVersion = MetadataVersion.IBP_3_3_IV1)
public void testDowngradeMetadataVersionWithKRaft() {
String commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"disable", "--feature", "metadata.version"))
);
assertEquals("Could not disable metadata.version. Invalid update version 0 for feature " +
"metadata.version. Local controller 3000 only supports versions 1-11", commandOutput);
commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"downgrade", "--metadata", "3.3-IV0"))
);
assertEquals("Could not downgrade metadata.version to 4. Invalid metadata.version 4. " +
"Refusing to perform the requested downgrade because it might delete metadata information. " +
"Retry using UNSAFE_DOWNGRADE if you want to force the downgrade to proceed.", commandOutput);
commandOutput = ToolsTestUtils.captureStandardOut(() ->
assertEquals(1, FeatureCommand.mainNoExit("--bootstrap-server", cluster.bootstrapServers(),
"downgrade", "--unsafe", "--metadata", "3.3-IV0"))
);
assertEquals("Could not downgrade metadata.version to 4. Invalid metadata.version 4. " +
"Unsafe metadata downgrade is not supported in this version.", commandOutput);
}
private String outputWithoutEpoch(String output) {
int pos = output.indexOf("Epoch: ");
return (pos > 0) ? output.substring(0, pos) : output;
}
}
class FeatureCommandUnitTest {
@Test
public void testLevelToString() {
assertEquals("5", FeatureCommand.levelToString("foo.bar", (short) 5));
assertEquals("3.3-IV0",
FeatureCommand.levelToString(MetadataVersion.FEATURE_NAME, MetadataVersion.IBP_3_3_IV0.featureLevel()));
}
@Test
public void testMetadataVersionsToString() {
assertEquals("3.3-IV0, 3.3-IV1, 3.3-IV2, 3.3-IV3",
FeatureCommand.metadataVersionsToString(MetadataVersion.IBP_3_3_IV0, MetadataVersion.IBP_3_3_IV3));
}
@Test
public void testdowngradeType() {
assertEquals(SAFE_DOWNGRADE, FeatureCommand.downgradeType(
new Namespace(singletonMap("unsafe", Boolean.FALSE))));
assertEquals(UNSAFE_DOWNGRADE, FeatureCommand.downgradeType(
new Namespace(singletonMap("unsafe", Boolean.TRUE))));
assertEquals(SAFE_DOWNGRADE, FeatureCommand.downgradeType(new Namespace(emptyMap())));
}
@Test
public void testParseNameAndLevel() {
assertArrayEquals(new String[]{"foo.bar", "5"}, FeatureCommand.parseNameAndLevel("foo.bar=5"));
assertArrayEquals(new String[]{"quux", "0"}, FeatureCommand.parseNameAndLevel("quux=0"));
assertTrue(assertThrows(RuntimeException.class, () -> FeatureCommand.parseNameAndLevel("baaz"))
.getMessage().contains("Can't parse feature=level string baaz: equals sign not found."));
assertTrue(assertThrows(RuntimeException.class, () -> FeatureCommand.parseNameAndLevel("w=tf"))
.getMessage().contains("Can't parse feature=level string w=tf: unable to parse tf as a short."));
}
private static MockAdminClient buildAdminClient() {
Map<String, Short> minSupportedFeatureLevels = new HashMap<>();
minSupportedFeatureLevels.put(MetadataVersion.FEATURE_NAME, MetadataVersion.IBP_3_3_IV0.featureLevel());
minSupportedFeatureLevels.put("foo.bar", (short) 0);
Map<String, Short> featureLevels = new HashMap<>();
featureLevels.put(MetadataVersion.FEATURE_NAME, MetadataVersion.IBP_3_3_IV2.featureLevel());
featureLevels.put("foo.bar", (short) 5);
Map<String, Short> maxSupportedFeatureLevels = new HashMap<>();
maxSupportedFeatureLevels.put(MetadataVersion.FEATURE_NAME, MetadataVersion.IBP_3_3_IV3.featureLevel());
maxSupportedFeatureLevels.put("foo.bar", (short) 10);
return new MockAdminClient.Builder().
minSupportedFeatureLevels(minSupportedFeatureLevels).
featureLevels(featureLevels).
maxSupportedFeatureLevels(maxSupportedFeatureLevels).build();
}
@Test
public void testHandleDescribe() {
String describeResult = ToolsTestUtils.captureStandardOut(() -> {
try {
FeatureCommand.handleDescribe(buildAdminClient());
} catch (Exception e) {
throw new RuntimeException(e);
}
});
assertEquals(format("Feature: foo.bar\tSupportedMinVersion: 0\tSupportedMaxVersion: 10\tFinalizedVersionLevel: 5\tEpoch: 123%n" +
"Feature: metadata.version\tSupportedMinVersion: 3.3-IV0\tSupportedMaxVersion: 3.3-IV3\tFinalizedVersionLevel: 3.3-IV2\tEpoch: 123"), describeResult);
}
@Test
public void testHandleUpgrade() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("metadata", "3.3-IV1");
namespace.put("feature", Collections.singletonList("foo.bar=6"));
namespace.put("dry_run", false);
String upgradeOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleUpgrade(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 2 operation(s) failed."));
});
assertEquals(format("foo.bar was upgraded to 6.%n" +
"Could not upgrade metadata.version to 5. Can't upgrade to lower version."), upgradeOutput);
}
@Test
public void testHandleUpgradeDryRun() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("metadata", "3.3-IV1");
namespace.put("feature", Collections.singletonList("foo.bar=6"));
namespace.put("dry_run", true);
String upgradeOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleUpgrade(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 2 operation(s) failed."));
});
assertEquals(format("foo.bar can be upgraded to 6.%n" +
"Can not upgrade metadata.version to 5. Can't upgrade to lower version."), upgradeOutput);
}
@Test
public void testHandleDowngrade() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("metadata", "3.3-IV3");
namespace.put("feature", Collections.singletonList("foo.bar=1"));
namespace.put("dry_run", false);
String downgradeOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleDowngrade(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 2 operation(s) failed."));
});
assertEquals(format("foo.bar was downgraded to 1.%n" +
"Could not downgrade metadata.version to 7. Can't downgrade to newer version."), downgradeOutput);
}
@Test
public void testHandleDowngradeDryRun() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("metadata", "3.3-IV3");
namespace.put("feature", Collections.singletonList("foo.bar=1"));
namespace.put("dry_run", true);
String downgradeOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleDowngrade(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 2 operation(s) failed."));
});
assertEquals(format("foo.bar can be downgraded to 1.%n" +
"Can not downgrade metadata.version to 7. Can't downgrade to newer version."), downgradeOutput);
}
@Test
public void testHandleDisable() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("feature", Arrays.asList("foo.bar", "metadata.version", "quux"));
namespace.put("dry_run", false);
String disableOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleDisable(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 3 operation(s) failed."));
});
assertEquals(format("foo.bar was disabled.%n" +
"Could not disable metadata.version. Can't downgrade below 4%n" +
"quux was disabled."), disableOutput);
}
@Test
public void testHandleDisableDryRun() {
Map<String, Object> namespace = new HashMap<>();
namespace.put("feature", Arrays.asList("foo.bar", "metadata.version", "quux"));
namespace.put("dry_run", true);
String disableOutput = ToolsTestUtils.captureStandardOut(() -> {
Throwable t = assertThrows(TerseException.class, () -> FeatureCommand.handleDisable(new Namespace(namespace), buildAdminClient()));
assertTrue(t.getMessage().contains("1 out of 3 operation(s) failed."));
});
assertEquals(format("foo.bar can be disabled.%n" +
"Can not disable metadata.version. Can't downgrade below 4%n" +
"quux can be disabled."), disableOutput);
}
}

3
tools/src/test/java/org/apache/kafka/tools/ToolsTestUtils.java

@ -46,6 +46,9 @@ public class ToolsTestUtils { @@ -46,6 +46,9 @@ public class ToolsTestUtils {
System.setErr(currentStream);
else
System.setOut(currentStream);
currentStream.close();
tempStream.close();
}
}

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