| /** |
| * 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.tez.runtime.api.events; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Public; |
| import org.apache.tez.runtime.api.Event; |
| |
| import java.util.Objects; |
| |
| /** |
| * Event generated by an Input to indicate error when trying to retrieve data. |
| * This is not necessarily a fatal event - it's an indication to the AM to retry |
| * source data generation. |
| */ |
| @Public |
| public final class InputReadErrorEvent extends Event { |
| |
| /** |
| * Diagnostics/trace of the error that occurred on the Input's edge. |
| */ |
| private final String diagnostics; |
| |
| /** |
| * Index of the physical edge on which the error occurred. |
| */ |
| private final int index; |
| |
| /** |
| * Version of the data on which the error occurred. |
| */ |
| private final int version; |
| |
| /** |
| * Number of failures. |
| */ |
| private final int numFailures; |
| |
| /** |
| * Whether this input read error is caused while fetching local file. |
| */ |
| private final boolean isLocalFetch; |
| |
| /** |
| * Whether this input read error is caused because the fetcher detected a fatal, unrecoverable, |
| * local file read issue from the shuffle handler. |
| */ |
| private final boolean isDiskErrorAtSource; |
| |
| private InputReadErrorEvent(final String diagnostics, final int index, final int version, |
| final int numFailures, boolean isLocalFetch, boolean isDiskErrorAtSource) { |
| super(); |
| this.diagnostics = diagnostics; |
| this.index = index; |
| this.version = version; |
| this.numFailures = numFailures; |
| this.isLocalFetch = isLocalFetch; |
| this.isDiskErrorAtSource = isDiskErrorAtSource; |
| } |
| |
| public static InputReadErrorEvent create(String diagnostics, int index, int version, |
| boolean isLocalFetch, boolean isDiskErrorAtSource) { |
| return create(diagnostics, index, version, 1, isLocalFetch, isDiskErrorAtSource); |
| } |
| |
| public static InputReadErrorEvent create(String diagnostics, int index, int version) { |
| return create(diagnostics, index, version, 1, false, false); |
| } |
| |
| /** |
| * Create an InputReadErrorEvent. |
| */ |
| public static InputReadErrorEvent create(final String diagnostics, final int index, |
| final int version, final int numFailures, boolean isLocalFetch, boolean isDiskErrorAtSource) { |
| return new InputReadErrorEvent(diagnostics, index, version, numFailures, isLocalFetch, |
| isDiskErrorAtSource); |
| } |
| |
| public String getDiagnostics() { |
| return diagnostics; |
| } |
| |
| public int getIndex() { |
| return index; |
| } |
| |
| public int getVersion() { |
| return version; |
| } |
| |
| /** |
| * @return number of failures |
| */ |
| public int getNumFailures() { |
| return numFailures; |
| } |
| |
| public boolean isLocalFetch() { |
| return isLocalFetch; |
| } |
| |
| public boolean isDiskErrorAtSource() { |
| return isDiskErrorAtSource; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(index, version); |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| InputReadErrorEvent that = (InputReadErrorEvent) o; |
| return index == that.index && version == that.version; |
| } |
| } |