Ben Tindall created HTTPASYNC-161: ------------------------------------- Summary: HttpAsyncClient 5.0 thread leak Key: HTTPASYNC-161 URL: https://issues.apache.org/jira/browse/HTTPASYNC-161 Project: HttpComponents HttpAsyncClient Issue Type: Bug Reporter: Ben Tindall
It seems that HttpAsyncClient doesn't close all its threads with the close() operation. Consider the following test: {code:java} @Test public void leakApache() throws Exception { for (int i = 0; i < 10000; i++) { CloseableHttpAsyncClient client = null; try { client = HttpAsyncClientBuilder.create().build(); System.out.println(i); } catch (Throwable e) { e.printStackTrace(); } finally { if (client != null) client.close(); } Thread.sleep(10); } Thread.sleep(300000); } {code} After around 280 iterations I start seeing this error message: {quote}java.lang.IllegalStateException: Unexpected failure opening I/O selector at org.apache.hc.core5.reactor.AbstractSingleCoreIOReactor.<init>(AbstractSingleCoreIOReactor.java:60) at org.apache.hc.core5.reactor.SingleCoreIOReactor.<init>(SingleCoreIOReactor.java:81) at org.apache.hc.core5.reactor.DefaultConnectingIOReactor.<init>(DefaultConnectingIOReactor.java:71) at org.apache.hc.client5.http.impl.async.HttpAsyncClientBuilder.build(HttpAsyncClientBuilder.java:924) at com.mimecast.micro.rest.BenTest.leakApache(BenTest.java:77) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.junit.runner.JUnitCore.run(JUnitCore.java:137) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:33) at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:230) at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:58) Caused by: java.io.IOException: Too many open files at sun.nio.ch.IOUtil.makePipe(Native Method) at sun.nio.ch.KQueueSelectorImpl.<init>(KQueueSelectorImpl.java:84) at sun.nio.ch.KQueueSelectorProvider.openSelector(KQueueSelectorProvider.java:42) at java.nio.channels.Selector.open(Selector.java:227) at org.apache.hc.core5.reactor.AbstractSingleCoreIOReactor.<init>(AbstractSingleCoreIOReactor.java:58) ... 26 more {quote} If I run lsof i see around 10k files. These files do not get released until the whole test closes. Is there something I'm missing? Thanks, Ben -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@hc.apache.org For additional commands, e-mail: dev-h...@hc.apache.org