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hs_err_prd.log日志分析

JAVA学习网 2020-11-14 00:53:02

 java程序运行的时候，突然JVM发生错误导致崩溃时，会生成一个hs_err_pid_xxx.log这样的文件，该文件包含了导致 JVM crash 的重要信息，我们可以通过分析该文件定位到导致 JVM Crash 的原因，从而修复保证系统稳定，默认该文件出生在项目得根目录。

这个文件主要包含如下内容：

  • 日志头信息
  • crash 的线程信息
  • 所有线程信息
  • 安全点和锁信息
  • 堆信息
  • 本地代码缓存
  • 编译事件
  • gc 相关时间
  • 逆优化
  • 重新定义类
  • 内部异常信息
  • jvm 内存映射
  • jvm 启动参数
  • 服务器信息

一、日志头文件

翻译过来的意思大概就是：

​ 没有足够的内存，Java运行时环境无法继续。本机内存分配（malloc）无法为ChunkPool :: allocate分配32744个字节可能的原因：系统没有物理RAM或交换空间该进程正在启用CompressedOops的情况下运行，并且Java Heap可能阻止了本机堆的增长可能的解决方案：

  1. 减少系统上的内存负载
  2. 增加物理内存或交换内存
  3. 检查交换后备存储是否已满
  4. 减小Java堆大小（-Xmx / -Xms）
  5. 减小Java线程数减小Java线程堆栈大小（-Xss）
  6. 设置较大的代码-XX：ReservedCodeCacheSize =

进行高速缓存JVM以基于零的压缩Oops模式运行，在该模式下，Java堆位于前32GB地址空间中。 Java堆基址是本机堆增长的最大限制。请使用-XX：HeapBaseMinAddress设置Java Heap基础并将Java Heap放置在32GB以上的虚拟地址上。

该输出文件可能被截断或不完整。内存不足错误（allocation.cpp：272），pid = 16756，tid = 0x0000000000006b78

JRE版本：Java（TM）SE运行时环境（8.0_231-b11）（内部版本1.8.0_231-b11）

Java VM：Java HotSpot（TM） ）64位服务器VM（25.231-b11混合模式Windows-amd64压缩的oops）

无法写入核心转储。默认情况下，在Windows客户端版本上不启用小型转储

这段信息简述了发生异常的信息，是服务器内存不足，除此之外，JVM 自身的 bug，应用程序错误，JVM 参数，JNI 调用错误，版本信息和配置信息等也会导致JVM Crash。

Out of Memory Error (allocation.cpp:272), pid=16756, tid=0x0000000000006b78
复制代码
  • pid=16756 进程号
  • tid=0x0000000000006b78 线程号

二、crash 的线程信息

---------------  T H R E A D  ---------------

Current thread (0x000000001fd37800):  JavaThread "C2 CompilerThread0" daemon [_thread_in_native, id=27512, stack(0x0000000020170000,0x0000000020270000)]

Stack: [0x0000000020170000,0x0000000020270000]
[error occurred during error reporting (printing stack bounds), id 0xc0000005]

Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)


Current CompileTask:
C2:  19813 10229       4       java.net.URLClassLoader$1::run (5 bytes)

复制代码

线程信息

Current thread (0x0000000001e94800):  JavaThread "pool-1-thread-2" [_thread_in_native, id=30111, stack(0x00007f3d567e5000,0x00007f3d568e6000)]
复制代码
  • 0x0000000001e94800：出错的线程指针
  • JavaThread：线程类型，线程可能还会有以下：
  1. JavaThread：Java线程
  2. VMThread : JVM 的内部线程
  3. CompilerThread：用来调用JITing，实时编译装卸class 。 通常，jvm会启动多个线程来处理这部分工作，线程名称后面的数字也会累加，例如：CompilerThread1
  4. GCTaskThread：执行gc的线程
  5. WatcherThread：JVM 周期性任务调度的线程，是一个单例对象
  6. ConcurrentMarkSweepThread：jvm在进行CMS GC的时候，会创建一个该线程去进行GC，该线程被创建的同时会创建一个SurrogateLockerThread（简称SLT）线程并且启动它，SLT启动之后，处于等待阶段。CMST开始GC时，会发一个消息给SLT让它去获取Java层Reference对象的全局锁：Lock
  • pool-1-thread-2：线程名称
  • _thread_in_native：当前线程状态
  1. _thread_in_native：线程当前状态，状态枚举包括：
  2. _thread_uninitialized：线程还没有创建，它只在内存原因崩溃的时候才出现
  3. _thread_new：线程已经被创建，但是还没有启动
  4. _thread_in_native：线程正在执行本地代码，一般这种情况很可能是本地代码有问题
  5. _thread_in_vm：线程正在执行虚拟机代码
  6. _thread_in_Java：线程正在执行解释或者编译后的Java代码
  7. _thread_blocked：线程处于阻塞状态
  8. …_trans：以_trans结尾，线程正处于要切换到其它状态的中间状态
  • id=30111 ：线程id
  • stack(0x00007f3d567e5000,0x00007f3d568e6000)：栈区间

三、线程信息

---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  0x000000002404f000 JavaThread "com.alibaba.nacos.naming.beat.sender" daemon [_thread_blocked, id=7612, stack(0x0000000021740000,0x0000000021840000)]
  0x0000000024047800 JavaThread "DestroyJavaVM" [_thread_blocked, id=25856, stack(0x0000000002fb0000,0x00000000030b0000)]
  0x0000000024048800 JavaThread "http-nio-51000-AsyncTimeout" daemon [_thread_blocked, id=12996, stack(0x0000000030020000,0x0000000030120000)]
  0x000000002404e800 JavaThread "http-nio-51000-Acceptor-0" daemon [_thread_in_native, id=22020, stack(0x000000002ff20000,0x0000000030020000)]
  0x000000002404d800 JavaThread "http-nio-51000-ClientPoller-1" daemon [_thread_in_native, id=11852, stack(0x000000002fe20000,0x000000002ff20000)]
  0x0000000024046000 JavaThread "http-nio-51000-ClientPoller-0" daemon [_thread_in_native, id=23656, stack(0x000000002fd20000,0x000000002fe20000)]
  0x0000000024047000 JavaThread "http-nio-51000-exec-10" daemon [_thread_blocked, id=11672, stack(0x000000002fc20000,0x000000002fd20000)]
  0x000000002404b800 JavaThread "http-nio-51000-exec-9" daemon [_thread_blocked, id=6460, stack(0x000000002fb20000,0x000000002fc20000)]
  0x000000002404d000 JavaThread "http-nio-51000-exec-8" daemon [_thread_blocked, id=4524, stack(0x000000002fa20000,0x000000002fb20000)]
  0x000000002404c000 JavaThread "http-nio-51000-exec-7" daemon [_thread_blocked, id=7536, stack(0x000000002f920000,0x000000002fa20000)]
  0x000000002404a800 JavaThread "http-nio-51000-exec-6" daemon [_thread_blocked, id=15648, stack(0x000000002f820000,0x000000002f920000)]
  0x0000000024045800 JavaThread "http-nio-51000-exec-5" daemon [_thread_blocked, id=17580, stack(0x000000002f720000,0x000000002f820000)]
  0x0000000022175800 JavaThread "http-nio-51000-exec-4" daemon [_thread_blocked, id=23840, stack(0x000000002f620000,0x000000002f720000)]
  0x0000000021bf9000 JavaThread "http-nio-51000-exec-3" daemon [_thread_blocked, id=20868, stack(0x000000002f520000,0x000000002f620000)]
  0x0000000021bfc000 JavaThread "http-nio-51000-exec-2" daemon [_thread_blocked, id=9416, stack(0x000000002f420000,0x000000002f520000)]
  0x0000000021bff800 JavaThread "http-nio-51000-exec-1" daemon [_thread_blocked, id=7856, stack(0x000000002f320000,0x000000002f420000)]
  0x0000000021bfc800 JavaThread "NioBlockingSelector.BlockPoller-1" daemon [_thread_in_native, id=17036, stack(0x000000002f060000,0x000000002f160000)]
  0x0000000021bf8000 JavaThread "dubbo-remoting-server-heartbeat-thread-1" daemon [_thread_blocked, id=11892, stack(0x000000002edf0000,0x000000002eef0000)]
  0x0000000021bf9800 JavaThread "NettyServerBoss-7-1" daemon [_thread_in_native, id=8756, stack(0x000000002e8a0000,0x000000002e9a0000)]
  0x0000000021bfe000 JavaThread "Keep-Alive-Timer" daemon [_thread_blocked, id=15228, stack(0x000000002f220000,0x000000002f320000)]
  0x0000000021bfd800 JavaThread "xxl-job, executor ExecutorRegistryThread" daemon [_thread_blocked, id=20704, stack(0x000000002e7a0000,0x000000002e8a0000)]
  0x0000000021bfb000 JavaThread "nioEventLoopGroup-5-1" [_thread_in_native, id=19896, stack(0x000000002e6a0000,0x000000002e7a0000)]
  0x0000000021bfa800 JavaThread "Thread-17" daemon [_thread_blocked, id=23024, stack(0x000000002eaf0000,0x000000002ebf0000)]
  0x0000000021bf0800 JavaThread "Thread-16" daemon [_thread_blocked, id=9520, stack(0x000000002e9f0000,0x000000002eaf0000)]
  0x0000000021bf6000 JavaThread "xxl-job, executor TriggerCallbackThread" daemon [_thread_blocked, id=15680, stack(0x000000002e2f0000,0x000000002e3f0000)]
  0x0000000021bf4800 JavaThread "xxl-job, executor JobLogFileCleanThread" daemon [_thread_blocked, id=18152, stack(0x000000002ada0000,0x000000002aea0000)]
  0x0000000021bf6800 JavaThread "com.alibaba.nacos.naming.beat.sender" daemon [_thread_blocked, id=856, stack(0x000000002e400000,0x000000002e500000)]
  0x0000000021bf5000 JavaThread "JetCacheDefaultExecutor" daemon [_thread_blocked, id=4936, stack(0x000000002e5a0000,0x000000002e6a0000)]
  0x0000000021bf3000 JavaThread "DubboClientReconnectTimer-thread-2" daemon [_thread_blocked, id=20420, stack(0x000000002d9f0000,0x000000002daf0000)]
  0x0000000021bf1800 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=13332, stack(0x000000002d6f0000,0x000000002d7f0000)]
  0x0000000021bf2000 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=12236, stack(0x000000002d5f0000,0x000000002d6f0000)]
  0x0000000022179000 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=12008, stack(0x000000002d4f0000,0x000000002d5f0000)]
  0x0000000022178800 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=26380, stack(0x000000002d3f0000,0x000000002d4f0000)]
  0x0000000022177800 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=5812, stack(0x000000002d2f0000,0x000000002d3f0000)]
  0x0000000022176000 JavaThread "dubbo-remoting-client-heartbeat-thread-1" daemon [_thread_blocked, id=27148, stack(0x000000002c020000,0x000000002c120000)]
  0x000000002217d000 JavaThread "NettyClientWorker-4-1" daemon [_thread_in_native, id=22332, stack(0x000000002bf20000,0x000000002c020000)]
  0x000000002217c000 JavaThread "DubboClientReconnectTimer-thread-1" daemon [_thread_blocked, id=22356, stack(0x000000002be20000,0x000000002bf20000)]
  0x000000002217b800 JavaThread "DubboSaveRegistryCache-thread-1" daemon [_thread_blocked, id=23092, stack(0x000000002bd20000,0x000000002be20000)]
  0x000000002216e800 JavaThread "com.alibaba.nacos.client.naming.updater" daemon [_thread_blocked, id=23676, stack(0x000000002b680000,0x000000002b780000)]
  0x0000000022172800 JavaThread "DubboRegistryFailedRetryTimer-thread-1" daemon [_thread_blocked, id=22928, stack(0x000000002b920000,0x000000002ba20000)]
  0x0000000022171000 JavaThread "com.alibaba.nacos.naming.push.receiver" daemon [_thread_in_native, id=11576, stack(0x000000002b820000,0x000000002b920000)]
  0x000000002216e000 JavaThread "com.alibaba.nacos.naming.failover" daemon [_thread_blocked, id=16176, stack(0x000000002b230000,0x000000002b330000)]
  0x0000000022173000 JavaThread "com.alibaba.nacos.naming.beat.sender" daemon [_thread_blocked, id=22464, stack(0x000000002b580000,0x000000002b680000)]
  0x000000002216f800 JavaThread "com.alibaba.nacos.naming.beat.sender" daemon [_thread_blocked, id=17320, stack(0x000000002b480000,0x000000002b580000)]
  0x0000000022171800 JavaThread "com.alibaba.nacos.naming.client.listener" daemon [_thread_blocked, id=26024, stack(0x000000002b380000,0x000000002b480000)]
  0x0000000022174000 JavaThread "Timer-0" daemon [_thread_blocked, id=23244, stack(0x0000000022f40000,0x0000000023040000)]
  0x0000000022174800 JavaThread "Log4j2-TF-9-Scheduled-3" daemon [_thread_blocked, id=11696, stack(0x000000002aee0000,0x000000002afe0000)]
  0x000000002659f800 JavaThread "qos-boss-1-1" daemon [_thread_in_native, id=12388, stack(0x000000002aca0000,0x000000002ada0000)]
  0x00000000265a1000 JavaThread "Druid-ConnectionPool-Destroy-613765444" daemon [_thread_blocked, id=16984, stack(
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