github/arthas
4
0
Fork 0
mirror of https://github.com/alibaba/arthas.git synced 2024-04-21 10:21:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

add heapdump command. #837

Browse Source
This commit is contained in:
hengyunabc
2019-09-02 19:40:03 +08:00
parent ba02797000
commit 89a61ff18b
2 changed files with 85 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
core/src/main/java/com/taobao/arthas/core/command/BuiltinCommandPack.java
+2
View File
@@ -26,6 +26,7 @@ import com.taobao.arthas.core.command.klass100.RedefineCommand;
import com.taobao.arthas.core.command.klass100.SearchClassCommand;
import com.taobao.arthas.core.command.klass100.SearchMethodCommand;
import com.taobao.arthas.core.command.monitor200.DashboardCommand;
import com.taobao.arthas.core.command.monitor200.HeapDumpCommand;
import com.taobao.arthas.core.command.monitor200.JvmCommand;
import com.taobao.arthas.core.command.monitor200.MBeanCommand;
import com.taobao.arthas.core.command.monitor200.MonitorCommand;
@@ -78,6 +79,7 @@ public class BuiltinCommandPack implements CommandResolver {
commands.add(Command.create(RedefineCommand.class));
commands.add(Command.create(DashboardCommand.class));
commands.add(Command.create(DumpClassCommand.class));
commands.add(Command.create(HeapDumpCommand.class));
commands.add(Command.create(JulyCommand.class));
commands.add(Command.create(ThanksCommand.class));
commands.add(Command.create(OptionsCommand.class));
core/src/main/java/com/taobao/arthas/core/command/monitor200/HeapDumpCommand.java
+83
View File
@@ -0,0 +1,83 @@
package com.taobao.arthas.core.command.monitor200;
import java.io.File;
import java.io.IOException;
import java.lang.management.ManagementFactory;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.sun.management.HotSpotDiagnosticMXBean;
import com.taobao.arthas.core.command.Constants;
import com.taobao.arthas.core.shell.command.AnnotatedCommand;
import com.taobao.arthas.core.shell.command.CommandProcess;
import com.taobao.arthas.core.util.LogUtil;
import com.taobao.middleware.cli.annotations.Argument;
import com.taobao.middleware.cli.annotations.Description;
import com.taobao.middleware.cli.annotations.Name;
import com.taobao.middleware.cli.annotations.Option;
import com.taobao.middleware.cli.annotations.Summary;
import com.taobao.middleware.logger.Logger;
/**
* HeapDump command
*
* @author hengyunabc 2019-09-02
*
*/
@Name("heapdump")
@Summary("Heap dump")
@Description("\nExamples:\n" + " heapdump\n" + " heapdump --live\n" + " heapdump --live /tmp/dump.hprof\n"
+ Constants.WIKI + Constants.WIKI_HOME + "heapdump")
public class HeapDumpCommand extends AnnotatedCommand {
private static final Logger logger = LogUtil.getArthasLogger();
private String file;
private boolean live;
@Argument(argName = "file", index = 0, required = false)
@Description("Output file")
public void setFile(String file) {
this.file = file;
}
@Option(shortName = "l", longName = "live", flag = true)
@Description("Only dump live objects, default value true")
public void setLive(boolean live) {
this.live = live;
}
@Override
public void process(CommandProcess process) {
int status = 0;
try {
String dumpFile = file;
if (dumpFile == null || dumpFile.isEmpty()) {
String date = new SimpleDateFormat("yyyy-MM-dd-HH-mm").format(new Date());
File file = File.createTempFile("heapdump" + date + (live ? "-live" : ""), ".hprof");
dumpFile = file.getAbsolutePath();
file.delete();
}
process.write("Dumping heap to " + dumpFile + "...\n");
run(process, dumpFile, live);
process.write("Heap dump file created\n");
} catch (Throwable t) {
logger.error("arthas", "heap dump error", t);
process.write("Heap dump error: " + t.getMessage() + '\n');
status = 1;
} finally {
process.end(status);
}
}
private static void run(CommandProcess process, String file, boolean live) throws IOException {
HotSpotDiagnosticMXBean hotSpotDiagnosticMXBean = ManagementFactory
.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
hotSpotDiagnosticMXBean.dumpHeap(file, live);
}
}