jmap -dump 1. linux系统 1、导dump,cd到tomcat指定的jdk的bin目录下执行 jmap -dump: format=b,file=文件名 pid 2、导jstack, 在jdk的bin目录下执行: jstack pid > a1.txt,间隔几秒在执行一次jstack pid > a2.txt,导出4-5个jstack文件就可以 fr用的是哪个jdk,可以执行ps -ef|grep tomcat, 根据这里...
at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.attach(LinuxDebuggerLocal.java:286) 。。。 解决方法 在root用户下使用su -m user -c " command "搞定。如下: [root@host11]# su -m yarn -c "jmap -dump:format=b,file=ll.bin 421442" Dumping heap to /tmp/hsperfdata_yarn/ll.bin ... H...
jmap-dump:live,format=b,file=heapdump.phrof pid 描述:生成堆转储快照dump文件。 以hprof二进制格式转储Java堆到指定filename的文件中。live子选项是可选的。如果指定了live子选项,堆中只有活动的对象会被转储。想要浏览heap dump,你可以使用jhat(Java堆分析工具)读取生成的文件。 这个命令执行,JVM会将整个heap的...
format=b binary format file=<file> dump heap to <file> Example: jmap -dump:live,format=b,file=heap.bin <pid> -F force. Use with -dump:<dump-options> <pid> or -histo to force a heap dump or histogram when <pid> does not respond. The "live" suboption is not supported in this ...
Command line: -Dzookeeper.log.dir=/usr/local/bigdata/apache-zookeeper-3.7.1/bin/../logs -Dzookeeper.log.file=zookeeper-alanchan-server-server1.log -Dzookeeper.root.logger=INFO,CONSOLE -XX:+HeapDumpOnOutOfMemoryError -XX:OnOutOfMemoryError=kill-9 %p -Xmx1000m -Dcom.sun.management.jmxremo...
Command::拉起进程对应的命令。 6、jstack查看java线程 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /opt/java8/bin/jstackUsage:jstack[-l]<pid>(to connect to running process)连接活动线程 jstack-F[-m][-l]<pid>(to connect to a hung process)连接阻塞线程 ...
和jconsole一样,运行jviusalvm,在jdk的bin目录下执行jviusalvm,windows下是jviusalvm.exe,linux和unix下是。 4:jmap jmap是jdk自带的jvm内存分析的工具,位于jdk的bin目录。jdk1.6中jmap命令用法: Usage: jmap -histo <pid> (to connect to running process and print histogram of java object heap ...
public InputStream heapHisto(Object … args) throws IOException { return executeCommand(“inspectheap”, args); } 接着看到 LinuxVirtualMachine.java: 先是创建UNIX socket,然后连到target VM,把dumpheap或inspectheap命令通过socket发过去。 那么具体的inspectheap在sun hotspot核心代码里是如何处理的呢?
when executingjmapcommand and unable to generate a heap dump: Raw [root@myhost /tmp]# jmap -dump:format=b,file=heap.hprof <JAVA_PID> <JAVA_PID>: java.io.IOException: well-known file /tmp/.java_pid<JAVA_PID> is not secure: file's group should be the current group (which is 1xx7...
In addition, the JDK 7 release introduced the -dump:format=b,file=filename option, which causes jmap to dump the Java heap in binary HPROF format to a specified file. This file can then be analyzed with the jhat tool.If the jmap pid command does not respond because of a hung process,...