afedulov commented on a change in pull request #15054: URL: https://github.com/apache/flink/pull/15054#discussion_r602934364
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/messages/ThreadInfoSample.java ########## @@ -0,0 +1,283 @@ +/* + * 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.messages; + +import java.io.Serializable; +import java.lang.management.LockInfo; +import java.lang.management.ThreadInfo; +import java.lang.management.ThreadMXBean; + +/** + * A serializable wrapper around {@link java.lang.management.ThreadInfo} that excludes {@link + * java.lang.management.LockInfo}-based non-serializable fields. + */ +public class ThreadInfoSample implements Serializable { + + private final String threadName; + private final long threadId; + private final long blockedTime; + private final long blockedCount; + private final long waitedTime; + private final long waitedCount; + private final String lockName; + private final long lockOwnerId; + private final String lockOwnerName; + private final boolean inNative; + private final boolean suspended; + private final Thread.State threadState; + private final StackTraceElement[] stackTrace; Review comment: Not for the Flame Graphs, but I was thinking that they maybe could be helpful if we further extend our debugging toolkit. Remove unused for now? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
