org.apache.flink.runtime.healthmanager.plugins.detectors.DryRunCheckTrigger 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.healthmanager.plugins.detectors;
import org.apache.flink.runtime.healthmanager.HealthMonitor;
import org.apache.flink.runtime.healthmanager.plugins.Detector;
import org.apache.flink.runtime.healthmanager.plugins.Symptom;
import org.apache.flink.runtime.healthmanager.plugins.symptoms.DryRunCheckSignal;
import org.apache.flink.runtime.healthmanager.plugins.utils.HealthMonitorOptions;
/**
* Trigger for dry run check.
*/
public class DryRunCheckTrigger implements Detector {
long lastCheck = System.currentTimeMillis();
long checkInterval;
@Override
public void open(HealthMonitor monitor) {
checkInterval = monitor.getConfig().getLong(HealthMonitorOptions.PARALLELISM_SCALE_INTERVAL) / 2;
}
@Override
public void close() {
}
@Override
public Symptom detect() throws Exception {
if (System.currentTimeMillis() - lastCheck > checkInterval) {
lastCheck = System.currentTimeMillis();
return DryRunCheckSignal.INSTANCE;
}
return null;
}
}