I have a memory dump produced on customer's server using -XX:+HeapDumpOnOutOfMemoryError and when I try to analyze it on my machine I get the error below. Not a valid HPROF file: heap dump segment has a size of 0. Not a valid HPROF file: heap dump segment has a size of 0. ...
Not a HPROF heap dump 或Unknown HPROF Version --- 以为是jdk版本问题,换了个jdk, 用它执行tomcat,然后用它的jmap来做dump,依然不行。 --- 以为是mat版本问题,又下载了个64位的mat,依然不行 --- 后来想到,是不是压缩文件给压坏了 找了个空tomcat,做了...
jmap -dump:live,format=b,file=heapdump.hprof <pid> • jmap:用于生成堆内存快照(heap dump),分析对象的内存使用情况。适用于内存泄漏分析。 • jstack:用于生成线程堆栈信息(thread dump),帮助分析线程的运行状态、死锁等问题。适用于诊断线程问题或应用假死。 生成线程堆栈信息 当服务假死时,更常用的方法是...
Heap Dump,称为堆转储文件,是Java进程在某个时间内的快照。 它在触发快照的时候保存了很多信息:Java对象和类信息。 通常在写Heap Dump文件前会触发一次Full GC。 下载地址 :https://www.eclipse.org/mat/downloads.php 1)获取dump文件 手动: jmap -dump:format=b,file=heap.hprof 44808 自动: -XX:+HeapDu...
-opens=java.desktop/javax.swing=ALL-UNNAMED --add-opens=java.desktop/javax.swing.plaf.basic=ALL-UNNAMED -XX:+IgnoreUnrecognizedVMOptions -Dnetbeans.logger.console=true -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/Users/gg/Library/Application Support/VisualVM/2.0.1/var/log/heapdump.hprof...
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...
可以使用 jmap 来生成 heap dump 文件: $ jmap -dump:live,format=b,file=heapdump.hprof -F 8152 Attaching to process ID 8152, please wait... Debugger attached successfully. Server compiler detected. JVM version is 23.25-b01 Dumping heap to heapdump.hprof ... ...
-XX:+HeapDumpOnOutOfMemoryError-XX:HeapDumpPath=/Volumes/Netsc/XXX/springcloud-gateway/heapDump.hprof-Dio.netty.leakDetection.level=advanced-Dio.netty.leakDetectionLevel=advanced-Dio.netty.leakDetection.targetRecords=10 日志如下,还是不明显
-XX:+HeapDumpOnOutOfMemoryError -XX:-OmitStackTraceInFastThrow -Djdk.attach.allowAttachSelf -Xverify:none -XX:ErrorFile=$USER_HOME/java_error_in_idea_%p.log -XX:HeapDumpPath=$USER_HOME/java_error_in_idea.hprof Explicitely providing IDEA_VM_OPTIONS did make it work again though: ...
Raw # /usr/lib/jvm/java-1.8.0/bin/jmap -F -dump:format=b,file=dump.hprof 6503 Attaching to process ID 6503, please wait... Debugger attached successfully. Server compiler detected. JVM version is 25.65-b01 Dumping heap to java_pid6503_va1rprdljap7496.hprof ... Exception in thread "...