Compress the heap dump generated by TestUtils.dump()
Motivation: It takes too long to download the heap dump from the CI server. Modifications: Compress the heap dump as much as possible. Result: When heap dump is generated by certain test failure, the generated heap dump file is about 3 times smaller than before, although the compression time will increase the build time when the test fails.
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0bc0851569
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10
pom.xml
10
pom.xml
@ -553,7 +553,7 @@
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<dependency>
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<dependency>
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<groupId>com.jcraft</groupId>
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<groupId>com.jcraft</groupId>
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<artifactId>jzlib</artifactId>
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<artifactId>jzlib</artifactId>
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<version>1.1.2</version>
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<version>1.1.2</version>
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</dependency>
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</dependency>
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<dependency>
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<dependency>
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<groupId>com.ning</groupId>
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<groupId>com.ning</groupId>
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@ -710,6 +710,14 @@
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<version>1.8.1</version>
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<version>1.8.1</version>
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<scope>test</scope>
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<scope>test</scope>
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</dependency>
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</dependency>
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<!-- Test dependency for generating a compressed heap dump file -->
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<dependency>
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<groupId>org.tukaani</groupId>
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<artifactId>xz</artifactId>
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<version>1.5</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</dependencies>
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</dependencyManagement>
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</dependencyManagement>
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@ -30,29 +30,9 @@
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<dependencies>
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<dependencies>
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<dependency>
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<dependency>
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<groupId>junit</groupId>
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<groupId>${project.groupId}</groupId>
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<artifactId>junit</artifactId>
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<artifactId>netty-transport-sctp</artifactId>
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</dependency>
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<version>${project.version}</version>
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<dependency>
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<groupId>org.easymock</groupId>
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<artifactId>easymock</artifactId>
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</dependency>
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<dependency>
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<groupId>org.easymock</groupId>
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<artifactId>easymockclassextension</artifactId>
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</dependency>
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<dependency>
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<groupId>org.jmock</groupId>
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<artifactId>jmock-junit4</artifactId>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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</dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<artifactId>netty-transport-sctp</artifactId>
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<version>${project.version}</version>
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</dependency>
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</dependency>
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<dependency>
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<dependency>
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<groupId>${project.groupId}</groupId>
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<groupId>${project.groupId}</groupId>
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@ -75,6 +55,12 @@
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<classifier>${os.detected.classifier}</classifier>
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<classifier>${os.detected.classifier}</classifier>
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<optional>true</optional>
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<optional>true</optional>
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</dependency>
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</dependency>
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<dependency>
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<groupId>org.tukaani</groupId>
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<artifactId>xz</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</dependencies>
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<properties>
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<properties>
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@ -20,11 +20,15 @@ import io.netty.util.NetUtil;
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import io.netty.util.internal.logging.InternalLogger;
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import io.netty.util.internal.logging.InternalLogger;
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import io.netty.util.internal.logging.InternalLoggerFactory;
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import io.netty.util.internal.logging.InternalLoggerFactory;
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import org.junit.rules.TestName;
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import org.junit.rules.TestName;
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import org.tukaani.xz.LZMA2Options;
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import org.tukaani.xz.XZOutputStream;
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import javax.management.MBeanServer;
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import javax.management.MBeanServer;
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import java.io.File;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.OutputStream;
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import java.lang.management.ManagementFactory;
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import java.lang.management.ManagementFactory;
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import java.lang.management.ThreadInfo;
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import java.lang.management.ThreadInfo;
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@ -238,6 +242,51 @@ public final class TestUtils {
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hotspotMXBeanDumpHeap.invoke(hotspotMXBean, filename, true);
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hotspotMXBeanDumpHeap.invoke(hotspotMXBean, filename, true);
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} catch (Exception e) {
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} catch (Exception e) {
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logger.warn("Failed to dump heap: {}", filename, e);
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logger.warn("Failed to dump heap: {}", filename, e);
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return;
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}
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final String xzFilename = filename + ".xz";
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logger.info("Compressing the heap dump: {}", xzFilename);
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final byte[] buf = new byte[65536];
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InputStream in = null;
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OutputStream out = null;
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try {
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in = new FileInputStream(filename);
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out = new XZOutputStream(new FileOutputStream(xzFilename), new LZMA2Options(9));
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for (;;) {
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int readBytes = in.read(buf);
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if (readBytes < 0) {
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break;
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}
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if (readBytes == 0) {
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continue;
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}
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out.write(buf, 0, readBytes);
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}
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out.close();
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in.close();
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} catch (Exception e) {
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logger.warn("Failed to compress the heap dump: {}", xzFilename, e);
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} finally {
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if (in != null) {
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try {
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in.close();
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} catch (IOException ignored) {
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// Ignore.
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}
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}
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if (out != null) {
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try {
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out.close();
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} catch (IOException ignored) {
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// Ignore.
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}
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}
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}
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// Delete the uncompressed dump in favor of the compressed one.
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if (!file.delete()) {
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logger.warn("Failed to delete the uncompressed heap dump: {}", filename);
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}
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}
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}
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}
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