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[improve][ci] Detect test thread leaks in CI builds and add tooling f…
…or resource leak investigation
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53 changes: 53 additions & 0 deletions
53
buildtools/src/main/java/org/apache/pulsar/tests/HeapDumpUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * 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.pulsar.tests; | ||
|
|
||
| import com.sun.management.HotSpotDiagnosticMXBean; | ||
| import java.io.File; | ||
| import java.lang.management.ManagementFactory; | ||
| import javax.management.MBeanServer; | ||
|
|
||
| public class HeapDumpUtil { | ||
| private static final String HOTSPOT_BEAN_NAME = "com.sun.management:type=HotSpotDiagnostic"; | ||
|
|
||
| // Utility method to get the HotSpotDiagnosticMXBean | ||
| private static HotSpotDiagnosticMXBean getHotSpotDiagnosticMXBean() { | ||
| try { | ||
| MBeanServer server = ManagementFactory.getPlatformMBeanServer(); | ||
| return ManagementFactory.newPlatformMXBeanProxy(server, HOTSPOT_BEAN_NAME, HotSpotDiagnosticMXBean.class); | ||
| } catch (Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Dump the heap of the JVM. | ||
| * | ||
| * @param file the system-dependent filename | ||
| * @param liveObjects if true dump only live objects i.e. objects that are reachable from others | ||
| */ | ||
| public static void dumpHeap(File file, boolean liveObjects) { | ||
| try { | ||
| HotSpotDiagnosticMXBean hotspotMBean = getHotSpotDiagnosticMXBean(); | ||
| hotspotMBean.dumpHeap(file.getAbsolutePath(), liveObjects); | ||
| } catch (Exception e) { | ||
| throw new RuntimeException("Error generating heap dump", e); | ||
| } | ||
| } | ||
| } |
62 changes: 62 additions & 0 deletions
62
buildtools/src/main/java/org/apache/pulsar/tests/HeapHistogramUtil.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| /* | ||
| * 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.pulsar.tests; | ||
|
|
||
| import java.lang.management.ManagementFactory; | ||
| import java.time.ZonedDateTime; | ||
| import java.time.format.DateTimeFormatter; | ||
| import javax.management.JMException; | ||
| import javax.management.ObjectName; | ||
|
|
||
| public class HeapHistogramUtil { | ||
| public static String buildHeapHistogram() { | ||
| StringBuilder dump = new StringBuilder(); | ||
| dump.append(String.format("Timestamp: %s", DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(ZonedDateTime.now()))); | ||
| dump.append("\n\n"); | ||
| try { | ||
| dump.append(callDiagnosticCommand("gcHeapInfo")); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| return null; | ||
| } | ||
| dump.append("\n"); | ||
| try { | ||
| dump.append(callDiagnosticCommand("gcClassHistogram")); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| return null; | ||
| } | ||
| return dump.toString(); | ||
| } | ||
|
|
||
| /** | ||
| * Calls a diagnostic commands. | ||
| * The available operations are similar to what the jcmd commandline tool has, | ||
| * however the naming of the operations are different. The "help" operation can be used | ||
| * to find out the available operations. For example, the jcmd command "Thread.print" maps | ||
| * to "threadPrint" operation name. | ||
| */ | ||
| static String callDiagnosticCommand(String operationName, String... args) | ||
| throws JMException { | ||
| return (String) ManagementFactory.getPlatformMBeanServer() | ||
| .invoke(new ObjectName("com.sun.management:type=DiagnosticCommand"), | ||
| operationName, new Object[] {args}, new String[] {String[].class.getName()}); | ||
| } | ||
| } |
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