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KAFKA-17367: Introduce share coordinator [2/N] (#17011)
Introduces the share coordinator. This coordinator is built on the new coordinator runtime framework. It is responsible for persistence of share-group state in a new internal topic named "__share_group_state". The responsibility for being a share coordinator is distributed across the brokers in a cluster. Reviewers: David Arthur <[email protected]>, Andrew Schofield <[email protected]>, Apoorv Mittal <[email protected]>
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...java/org/apache/kafka/coordinator/common/runtime/CoordinatorOperationExceptionHelper.java
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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. | ||
| */ | ||
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| package org.apache.kafka.coordinator.common.runtime; | ||
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| import org.apache.kafka.common.protocol.Errors; | ||
| import org.apache.kafka.common.requests.ApiError; | ||
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| import org.slf4j.Logger; | ||
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| import java.util.function.BiFunction; | ||
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| public class CoordinatorOperationExceptionHelper { | ||
| /** | ||
| * This is the handler commonly used by all the operations that requires to convert errors to | ||
| * coordinator errors. The handler also handles and log unexpected errors. | ||
| * | ||
| * @param operationName The name of the operation. | ||
| * @param operationInput The operation's input for logging purposes. | ||
| * @param exception The exception to handle. | ||
| * @param handler A function which takes an Errors and a String and builds the expected | ||
| * output. The String can be null. Note that the function could further | ||
| * transform the error depending on the context. | ||
| * @return The output built by the handler. | ||
| * @param <IN> The type of the operation input. It must be a toString'able object. | ||
| * @param <OUT> The type of the value returned by handler. | ||
| */ | ||
| public static <IN, OUT> OUT handleOperationException( | ||
| String operationName, | ||
| IN operationInput, | ||
| Throwable exception, | ||
| BiFunction<Errors, String, OUT> handler, | ||
| Logger log | ||
| ) { | ||
| ApiError apiError = ApiError.fromThrowable(exception); | ||
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| switch (apiError.error()) { | ||
| case UNKNOWN_SERVER_ERROR: | ||
| log.error("Operation {} with {} hit an unexpected exception: {}.", | ||
| operationName, operationInput, exception.getMessage(), exception); | ||
| return handler.apply(Errors.UNKNOWN_SERVER_ERROR, null); | ||
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| case NETWORK_EXCEPTION: | ||
| // When committing offsets transactionally, we now verify the transaction with the | ||
| // transaction coordinator. Verification can fail with `NETWORK_EXCEPTION`, a | ||
| // retriable error which older clients may not expect and retry correctly. We | ||
| // translate the error to `COORDINATOR_LOAD_IN_PROGRESS` because it causes clients | ||
| // to retry the request without an unnecessary coordinator lookup. | ||
| return handler.apply(Errors.COORDINATOR_LOAD_IN_PROGRESS, null); | ||
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| case UNKNOWN_TOPIC_OR_PARTITION: | ||
| case NOT_ENOUGH_REPLICAS: | ||
| case REQUEST_TIMED_OUT: | ||
| return handler.apply(Errors.COORDINATOR_NOT_AVAILABLE, null); | ||
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| case NOT_LEADER_OR_FOLLOWER: | ||
| case KAFKA_STORAGE_ERROR: | ||
| return handler.apply(Errors.NOT_COORDINATOR, null); | ||
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| case MESSAGE_TOO_LARGE: | ||
| case RECORD_LIST_TOO_LARGE: | ||
| case INVALID_FETCH_SIZE: | ||
| return handler.apply(Errors.UNKNOWN_SERVER_ERROR, null); | ||
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| default: | ||
| return handler.apply(apiError.error(), apiError.message()); | ||
| } | ||
| } | ||
| } |
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