yaooqinn commented on a change in pull request #1015: URL: https://github.com/apache/incubator-kyuubi/pull/1015#discussion_r700790130
########## File path: kyuubi-server/src/main/scala/org/apache/kyuubi/credentials/HadoopCredentialsManager.scala ########## @@ -0,0 +1,225 @@ +/* + * 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.kyuubi.credentials + +import java.time.Duration +import java.util.ServiceLoader +import java.util.concurrent._ + +import scala.collection.mutable +import scala.util.{Failure, Success, Try} + +import com.google.common.cache.{CacheBuilder, CacheLoader, LoadingCache} +import org.apache.hadoop.conf.Configuration +import org.apache.hadoop.security.Credentials + +import org.apache.kyuubi.{KyuubiException, Logging} +import org.apache.kyuubi.config.KyuubiConf +import org.apache.kyuubi.config.KyuubiConf._ +import org.apache.kyuubi.service.AbstractService +import org.apache.kyuubi.util.{KyuubiHadoopUtils, ThreadUtils} + +class HadoopCredentialsManager private (name: String) extends AbstractService(name) + with Logging { + + def this() = this(classOf[HadoopCredentialsManager].getSimpleName) + + private val userRefMap = new ConcurrentHashMap[String, UserCredentialsRef]() + + private var engineRefCache: LoadingCache[String, EngineCredentialsRef] = _ + + private var providers: Map[String, HadoopDelegationTokenProvider] = _ + private var requiredProviders: Map[String, HadoopDelegationTokenProvider] = _ + + private var renewalInterval: Long = _ + private var renewalRetryWait: Long = _ + private var renewalExecutor: ScheduledExecutorService = _ + private var hadoopConf: Configuration = _ + + override def initialize(conf: KyuubiConf): Unit = { + val cacheLoader = new CacheLoader[String, EngineCredentialsRef] { + override def load(key: String): EngineCredentialsRef = new EngineCredentialsRef + } + engineRefCache = CacheBuilder.newBuilder() + .concurrencyLevel(conf.get(KyuubiConf.SERVER_EXEC_POOL_SIZE)) + .expireAfterAccess(conf.get(KyuubiConf.ENGINE_IDLE_TIMEOUT), TimeUnit.MILLISECONDS) + .build(cacheLoader) + + hadoopConf = KyuubiHadoopUtils.newHadoopConf(conf) + providers = loadProviders(conf) + requiredProviders = providers.filter { case (_, provider) => + val required = provider.delegationTokensRequired(hadoopConf, conf) + if (!required) { + info(s"Service ${provider.serviceName} does not require a token." + + s" Check your configuration to see if security is disabled or not.") + } + required + } + info("Using the following builtin delegation token providers: " + + s"${providers.keys.mkString(", ")}.") + + renewalInterval = conf.get(CREDENTIALS_RENEWAL_INTERVAL) + renewalRetryWait = conf.get(CREDENTIALS_RENEWAL_RETRY_WAIT) + super.initialize(conf) + } + + override def start(): Unit = { + renewalExecutor = + ThreadUtils.newDaemonSingleThreadScheduledExecutor("Delegation Token Renewal Thread") + super.start() + } + + override def stop(): Unit = { + if (renewalExecutor != null) { + renewalExecutor.shutdownNow() + try { + renewalExecutor.awaitTermination(10, TimeUnit.SECONDS) + } catch { + case _: InterruptedException => + } + } + super.stop() + } + + /** + * Send credentials to SQL engine if [[HadoopCredentialsManager]] had a newer version. + * `appUser`'s credentials are created if not exist. + * [[HadoopCredentialsManager]] takes care created credentials' renewal. + * @param engineId SQL engine identifier + * @param appUser User identity that the SQL engine uses. + * @param send Function to send encoded credentials to SQL engine + * @return `true` if credentials are sent successfully. Else, false. + * @throws KyuubiException if sending credentials fails. + */ + def sendCredentialsIfNeeded( + engineId: String, + appUser: String, + send: String => Unit): Boolean = { + require(renewalExecutor != null, "renewalExecutor should be initialized") + + val userRef = getUserRef(appUser) + val engineRef = getEngineRef(engineId) + + var sent = false Review comment: where is it used? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
