org.apache.flink.runtime.util.FatalExitExceptionHandler Maven / Gradle / Ivy
/*
* 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.flink.runtime.util;
import org.apache.flink.runtime.security.FlinkSecurityManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Handler for uncaught exceptions that will log the exception and kill the process afterwards.
*
* This guarantees that critical exceptions are not accidentally lost and leave the system
* running in an inconsistent state.
*/
public final class FatalExitExceptionHandler implements Thread.UncaughtExceptionHandler {
private static final Logger LOG = LoggerFactory.getLogger(FatalExitExceptionHandler.class);
public static final FatalExitExceptionHandler INSTANCE = new FatalExitExceptionHandler();
public static final int EXIT_CODE = -17;
@Override
@SuppressWarnings("finally")
public void uncaughtException(Thread t, Throwable e) {
try {
LOG.error(
"FATAL: Thread '{}' produced an uncaught exception. Stopping the process...",
t.getName(),
e);
} finally {
FlinkSecurityManager.forceProcessExit(EXIT_CODE);
}
}
}