| // |
| // 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.cloudstack.utils.hypervisor; |
| |
| import com.cloud.utils.exception.CloudRuntimeException; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.logging.log4j.LogManager; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.util.concurrent.TimeUnit; |
| |
| public class HypervisorUtils { |
| protected static Logger LOGGER = LogManager.getLogger(HypervisorUtils.class); |
| |
| public static void checkVolumeFileForActivity(final String filePath, int timeoutSeconds, long inactiveThresholdMilliseconds, long minimumFileSize) throws IOException { |
| File file = new File(filePath); |
| if (!file.exists()) { |
| throw new CloudRuntimeException("File " + file.getAbsolutePath() + " not found"); |
| } |
| if (file.length() < minimumFileSize) { |
| LOGGER.debug("VM disk file too small, fresh clone? skipping modify check"); |
| return; |
| } |
| int waitedSeconds = 0; |
| int intervalSeconds = 1; |
| while (true) { |
| BasicFileAttributes attrs = Files.readAttributes(file.toPath(), BasicFileAttributes.class); |
| long modifyIdle = System.currentTimeMillis() - attrs.lastModifiedTime().toMillis(); |
| long accessIdle = System.currentTimeMillis() - attrs.lastAccessTime().toMillis(); |
| if (modifyIdle > inactiveThresholdMilliseconds && accessIdle > inactiveThresholdMilliseconds) { |
| LOGGER.debug("File " + filePath + " has not been accessed or modified for at least " + inactiveThresholdMilliseconds + " ms"); |
| return; |
| } else { |
| LOGGER.debug("File was modified " + modifyIdle + "ms ago, accessed " + accessIdle + "ms ago, waiting for inactivity threshold of " |
| + inactiveThresholdMilliseconds + "ms or timeout of " + timeoutSeconds + "s (waited " + waitedSeconds + "s)"); |
| } |
| try { |
| TimeUnit.SECONDS.sleep(intervalSeconds); |
| } catch (InterruptedException ex) { |
| throw new CloudRuntimeException("Interrupted while waiting for activity on " + filePath + " to subside", ex); |
| } |
| waitedSeconds += intervalSeconds; |
| if (waitedSeconds >= timeoutSeconds) { |
| throw new CloudRuntimeException("Reached timeout while waiting for activity on " + filePath + " to subside"); |
| } |
| } |
| } |
| |
| } |