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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.
*/
package org.apache.flink.runtime.checkpoint;
/**
* Various reasons why a checkpoint was failure.
*/
public enum CheckpointFailureReason {
PERIODIC_SCHEDULER_SHUTDOWN(true, "Periodic checkpoint scheduler is shut down."),
ALREADY_QUEUED(true, "Another checkpoint request has already been queued."),
TOO_MANY_CONCURRENT_CHECKPOINTS(true, "The maximum number of concurrent checkpoints is exceeded"),
MINIMUM_TIME_BETWEEN_CHECKPOINTS(true, "The minimum time between checkpoints is still pending. " +
"Checkpoint will be triggered after the minimum time."),
NOT_ALL_REQUIRED_TASKS_RUNNING(true, "Not all required tasks are currently running."),
EXCEPTION(true, "An Exception occurred while triggering the checkpoint."),
CHECKPOINT_EXPIRED(false, "Checkpoint expired before completing."),
CHECKPOINT_SUBSUMED(false, "Checkpoint has been subsumed."),
CHECKPOINT_DECLINED(false, "Checkpoint was declined."),
CHECKPOINT_DECLINED_TASK_NOT_READY(false, "Checkpoint was declined (tasks not ready)"),
CHECKPOINT_DECLINED_TASK_NOT_CHECKPOINTING(false, "Task does not support checkpointing"),
CHECKPOINT_DECLINED_SUBSUMED(false, "Checkpoint was canceled because a barrier from newer checkpoint was received."),
CHECKPOINT_DECLINED_ON_CANCELLATION_BARRIER(false, "Task received cancellation from one of its inputs"),
CHECKPOINT_DECLINED_ALIGNMENT_LIMIT_EXCEEDED(false, "The checkpoint alignment phase needed to buffer more than the configured maximum bytes"),
CHECKPOINT_DECLINED_INPUT_END_OF_STREAM(false, "Checkpoint was declined because one input stream is finished"),
CHECKPOINT_COORDINATOR_SHUTDOWN(false, "CheckpointCoordinator shutdown."),
CHECKPOINT_COORDINATOR_SUSPEND(false, "Checkpoint Coordinator is suspending."),
JOB_FAILURE(false, "The job has failed."),
JOB_FAILOVER_REGION(false, "FailoverRegion is restarting."),
TASK_CHECKPOINT_FAILURE(false, "Task local checkpoint failure."),
FINALIZE_CHECKPOINT_FAILURE(false, "Failure to finalize checkpoint."),
TRIGGER_CHECKPOINT_FAILURE(false, "Trigger checkpoint failure.");
// ------------------------------------------------------------------------
private final boolean preFlight;
private final String message;
CheckpointFailureReason(boolean isPreFlight, String message) {
this.preFlight = isPreFlight;
this.message = message;
}
public String message() {
return message;
}
/**
* @return true if this value indicates a failure reason happening before a checkpoint is passed to a job's tasks.
*/
public boolean isPreFlight() {
return preFlight;
}
}
