一直卡死的实验

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今天我做了个实验报错了,是把数据从一方传到远程的kafka里。发送方启动server.jar,kafka的接收方也启动server.jar。

java -jar server-v1.0.jar -d C:\Users\Administrator\Desktop\test\ -s 172.21.6.57 -t taxi

传输了不久之后，报错了。
报错日志如下：

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#
# A fatal error has been detected by the Java Runtime Environment:
#
#  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0000000002be853a, pid=11956, tid=0x0000000000001e10
#
# JRE version: Java(TM) SE Runtime Environment (8.0_171-b11) (build 1.8.0_171-b11)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.171-b11 mixed mode windows-amd64 compressed oops)
# Problematic frame:
# J 2149 C2 sun.nio.ch.IOUtil.write(Ljava/io/FileDescriptor;[Ljava/nio/ByteBuffer;IILsun/nio/ch/NativeDispatcher;)J (509 bytes) @ 0x0000000002be853a [0x0000000002be7e40+0x6fa]
#
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#

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

Current thread (0x0000000019b3e000):  JavaThread "nioEventLoopGroup-2-1" [_thread_in_Java, id=7696, stack(0x0000000019f50000,0x000000001a050000)]

siginfo: ExceptionCode=0xc0000005, writing address 0x0000000033960040

Registers:
RAX=0x00000000d36695f0, RBX=0x0000000000000008, RCX=0x000000001e25ebc0, RDX=0x00000000d7ee5360
RSP=0x000000001a04ef50, RBP=0x00000000d36695f0, RSI=0x000000000000b5a4, RDI=0x0000000000000000
R8 =0x000000000045bf8c, R9 =0x00000000ded44a00, R10=0x0000000033960040, R11=0x0000000000000039
R12=0x0000000000000000, R13=0x00000000d5c00000, R14=0x00000000d47d9430, R15=0x0000000019b3e000
RIP=0x0000000002be853a, EFLAGS=0x0000000000010202

Top of Stack: (sp=0x000000001a04ef50)
0x000000001a04ef50:   0000000000000001 0000000000000020
0x000000001a04ef60:   000000001a04efb8 0000000000000000
0x000000001a04ef70:   0000000000800000 00000000ca036da0
0x000000001a04ef80:   00000000819b6ea8 0000000000000000
0x000000001a04ef90:   0000b5a40000b5a4 00000000817b09c0
0x000000001a04efa0:   0000000019b3e000 00000000819b6c00
0x000000001a04efb0:   00000000819b6ce0 00000000d36695c0
0x000000001a04efc0:   00000000819bc618 00000000819bc578
0x000000001a04efd0:   00000000819bc5a8 00000000819bc618
0x000000001a04efe0:   0000000000000001 0000000002cfda2c
0x000000001a04eff0:   00000000df8e3998 00000001400731a8
0x000000001a04f000:   00000000818cf500 00000000df8eac08
0x000000001a04f010:   00000001df8e3998 00000000ca036da0
0x000000001a04f020:   0000b5a40014578f 00000000819b6dd8
0x000000001a04f030:   00000000819b6ee0 00000000df8e3998
0x000000001a04f040:   000000012803e413 0000000000000001 

Instructions: (pc=0x0000000002be853a)
0x0000000002be851a:   00 28 0f 85 47 17 00 00 48 63 c9 49 03 49 10 c5
0x0000000002be852a:   f9 7e cb 83 fb 04 0f 84 d7 0f 00 00 4c 8b 52 18
0x0000000002be853a:   49 89 0a 4d 63 db 4d 89 5a 08 41 ba 01 00 00 00
0x0000000002be854a:   c4 e1 f9 7e c0 e9 10 fb ff ff 0f 1f 84 00 00 00 


Register to memory mapping:

RAX=0x00000000d36695f0 is an oop
[Ljava.nio.ByteBuffer; 
 - klass: 'java/nio/ByteBuffer'[]
 - length: 4571020
RBX=0x0000000000000008 is an unknown value
RCX=0x000000001e25ebc0 is an unknown value
RDX=0x00000000d7ee5360 is an oop
sun.nio.ch.AllocatedNativeObject 
 - klass: 'sun/nio/ch/AllocatedNativeObject'
RSP=0x000000001a04ef50 is pointing into the stack for thread: 0x0000000019b3e000
RBP=0x00000000d36695f0 is an oop
[Ljava.nio.ByteBuffer; 
 - klass: 'java/nio/ByteBuffer'[]
 - length: 4571020
RSI=0x000000000000b5a4 is an unknown value
RDI=0x0000000000000000 is an unknown value
R8 =0x000000000045bf8c is an unknown value
R9 =0x00000000ded44a00 is an oop
java.nio.DirectByteBuffer 
 - klass: 'java/nio/DirectByteBuffer'
R10=0x0000000033960040 is an unknown value
R11=0x0000000000000039 is an unknown value
R12=0x0000000000000000 is an unknown value
R13=0x00000000d5c00000 is an oop
[I 
 - klass: {type array int}
 - length: 4571020
R14=0x00000000d47d9430 is an oop
[I 
 - klass: {type array int}
 - length: 4571020
R15=0x0000000019b3e000 is a thread


Stack: [0x0000000019f50000,0x000000001a050000],  sp=0x000000001a04ef50,  free space=1019k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  0x0000000002be853a


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

Java Threads: ( => current thread )
  0x000000001a5b9800 JavaThread "Thread-1" [_thread_blocked, id=15172, stack(0x000000001cf70000,0x000000001d070000)]
  0x000000001a5c9000 JavaThread "kafka-producer-network-thread | producer-1" daemon [_thread_in_native, id=18268, stack(0x000000001ccf0000,0x000000001cdf0000)]
  0x000000001a5f8800 JavaThread "threadDeathWatcher-3-1" daemon [_thread_blocked, id=15976, stack(0x000000001bbe0000,0x000000001bce0000)]
=>0x0000000019b3e000 JavaThread "nioEventLoopGroup-2-1" [_thread_in_Java, id=7696, stack(0x0000000019f50000,0x000000001a050000)]
  0x0000000018965000 JavaThread "Service Thread" daemon [_thread_blocked, id=10604, stack(0x0000000019380000,0x0000000019480000)]
  0x00000000188f8000 JavaThread "C1 CompilerThread2" daemon [_thread_blocked, id=19388, stack(0x0000000019280000,0x0000000019380000)]
  0x00000000188f4000 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=9220, stack(0x0000000019160000,0x0000000019260000)]
  0x000000001762f000 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=1804, stack(0x0000000018e20000,0x0000000018f20000)]
  0x00000000188c8800 JavaThread "Attach Listener" daemon [_thread_blocked, id=9820, stack(0x0000000018f50000,0x0000000019050000)]
  0x0000000017620000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=8704, stack(0x0000000018d00000,0x0000000018e00000)]
  0x000000001760a000 JavaThread "Finalizer" daemon [_thread_blocked, id=6588, stack(0x00000000187c0000,0x00000000188c0000)]
  0x00000000175c3000 JavaThread "Reference Handler" daemon [_thread_blocked, id=6064, stack(0x0000000018460000,0x0000000018560000)]
  0x000000000020e800 JavaThread "main" [_thread_blocked, id=19140, stack(0x0000000002610000,0x0000000002710000)]

Other Threads:
  0x00000000175bb800 VMThread [stack: 0x00000000185e0000,0x00000000186e0000] [id=8132]
  0x000000001896e800 WatcherThread [stack: 0x0000000019640000,0x0000000019740000] [id=14692]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap:
 PSYoungGen      total 461312K, used 173083K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 71% used [0x00000000d5c00000,0x00000000e0506c90,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1381668K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5949270,0x00000000d5c00000)
 Metaspace       used 17921K, capacity 18118K, committed 18432K, reserved 1064960K
  class space    used 2194K, capacity 2284K, committed 2304K, reserved 1048576K

Card table byte_map: [0x0000000011ad0000,0x0000000011ed0000] byte_map_base: 0x00000000116c6000

Marking Bits: (ParMarkBitMap*) 0x00000000531208c0
 Begin Bits: [0x00000000128d0000, 0x0000000014880000)
 End Bits:   [0x0000000014880000, 0x0000000016830000)

Polling page: 0x0000000000140000

CodeCache: size=245760Kb used=5665Kb max_used=6455Kb free=240094Kb
 bounds [0x0000000002710000, 0x0000000002d70000, 0x0000000011710000]
 total_blobs=2312 nmethods=1836 adapters=388
 compilation: enabled

Compilation events (10 events):
Event: 418.857 Thread 0x00000000188f8000 2213       3       io.netty.util.Recycler$Stack::pushLater (93 bytes)
Event: 418.857 Thread 0x000000001762f000 2214       4       io.netty.util.Recycler::access$2100 (4 bytes)
Event: 418.857 Thread 0x000000001762f000 nmethod 2214 0x000000000285ae50 code [0x000000000285af80, 0x000000000285afd8]
Event: 418.858 Thread 0x00000000188f8000 nmethod 2213 0x0000000002bd32d0 code [0x0000000002bd35c0, 0x0000000002bd5008]
Event: 418.861 Thread 0x00000000188f4000 2215       4       io.netty.util.Recycler$WeakOrderQueue::reserveSpace (46 bytes)
Event: 418.862 Thread 0x00000000188f4000 nmethod 2215 0x0000000002b1f2d0 code [0x0000000002b1f400, 0x0000000002b1f478]
Event: 418.862 Thread 0x000000001762f000 2216       4       io.netty.util.Recycler$Stack::pushLater (93 bytes)
Event: 418.863 Thread 0x00000000188f4000 2217       4       io.netty.util.Recycler$WeakOrderQueue::add (84 bytes)
Event: 418.867 Thread 0x00000000188f4000 nmethod 2217 0x00000000029588d0 code [0x0000000002958a20, 0x0000000002958d18]
Event: 418.893 Thread 0x000000001762f000 nmethod 2216 0x0000000002842710 code [0x0000000002842900, 0x0000000002843e50]

GC Heap History (10 events):
Event: 392.153 GC heap before
{Heap before GC invocations=219 (full 62):
 PSYoungGen      total 461312K, used 231300K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 95% used [0x00000000d5c00000,0x00000000e3de1358,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384162K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5bb8b50,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
Event: 395.350 GC heap after
Heap after GC invocations=219 (full 62):
 PSYoungGen      total 461312K, used 222710K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 92% used [0x00000000d5c00000,0x00000000e357d948,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384162K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5bb8b50,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
}
Event: 395.357 GC heap before
{Heap before GC invocations=220 (full 63):
 PSYoungGen      total 461312K, used 241664K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 100% used [0x00000000d5c00000,0x00000000e4800000,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384162K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5bb8b50,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
Event: 400.346 GC heap after
Heap after GC invocations=220 (full 63):
 PSYoungGen      total 461312K, used 169771K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 70% used [0x00000000d5c00000,0x00000000e01cae08,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384088K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5ba6170,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
}
Event: 400.471 GC heap before
{Heap before GC invocations=221 (full 64):
 PSYoungGen      total 461312K, used 233668K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 96% used [0x00000000d5c00000,0x00000000e4031180,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384088K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5ba6170,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
Event: 403.654 GC heap after
Heap after GC invocations=221 (full 64):
 PSYoungGen      total 461312K, used 225026K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 93% used [0x00000000d5c00000,0x00000000e37c0b78,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384088K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5ba6170,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
}
Event: 403.654 GC heap before
{Heap before GC invocations=222 (full 65):
 PSYoungGen      total 461312K, used 225026K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 93% used [0x00000000d5c00000,0x00000000e37c0b78,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384088K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5ba6170,0x00000000d5c00000)
 Metaspace       used 17944K, capacity 18158K, committed 18432K, reserved 1064960K
  class space    used 2200K, capacity 2294K, committed 2304K, reserved 1048576K
Event: 414.327 GC heap after
Heap after GC invocations=222 (full 65):
 PSYoungGen      total 461312K, used 224508K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 92% used [0x00000000d5c00000,0x00000000e373f278,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384121K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5bae6e8,0x00000000d5c00000)
 Metaspace       used 17918K, capacity 18118K, committed 18432K, reserved 1064960K
  class space    used 2194K, capacity 2284K, committed 2304K, reserved 1048576K
}
Event: 414.506 GC heap before
{Heap before GC invocations=223 (full 66):
 PSYoungGen      total 461312K, used 241664K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 100% used [0x00000000d5c00000,0x00000000e4800000,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1384124K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5baf358,0x00000000d5c00000)
 Metaspace       used 17921K, capacity 18118K, committed 18432K, reserved 1064960K
  class space    used 2194K, capacity 2284K, committed 2304K, reserved 1048576K
Event: 418.168 GC heap after
Heap after GC invocations=223 (full 66):
 PSYoungGen      total 461312K, used 39793K [0x00000000d5c00000, 0x0000000100000000, 0x0000000100000000)
  eden space 241664K, 16% used [0x00000000d5c00000,0x00000000d82dc588,0x00000000e4800000)
  from space 219648K, 0% used [0x00000000f2980000,0x00000000f2980000,0x0000000100000000)
  to   space 225280K, 0% used [0x00000000e4800000,0x00000000e4800000,0x00000000f2400000)
 ParOldGen       total 1384448K, used 1381668K [0x0000000081400000, 0x00000000d5c00000, 0x00000000d5c00000)
  object space 1384448K, 99% used [0x0000000081400000,0x00000000d5949270,0x00000000d5c00000)
 Metaspace       used 17921K, capacity 18118K, committed 18432K, reserved 1064960K
  class space    used 2194K, capacity 2284K, committed 2304K, reserved 1048576K
}

Deoptimization events (10 events):
Event: 414.331 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002d62914 method=io.netty.buffer.PoolChunkList.free(Lio/netty/buffer/PoolChunk;J)Z @ 13
Event: 414.409 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002c2c29c method=io.netty.util.Recycler$Stack.pushNow(Lio/netty/util/Recycler$DefaultHandle;)V @ 44
Event: 414.409 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002c20a14 method=io.netty.util.Recycler$Stack.pushNow(Lio/netty/util/Recycler$DefaultHandle;)V @ 44
Event: 414.466 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002b60620 method=io.netty.buffer.PoolArena.freeChunk(Lio/netty/buffer/PoolChunk;JLio/netty/buffer/PoolArena$SizeClass;)V @ 96
Event: 418.187 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002cc8478 method=io.netty.buffer.PoolArena.freeChunk(Lio/netty/buffer/PoolChunk;JLio/netty/buffer/PoolArena$SizeClass;)V @ 96
Event: 418.230 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002ac941c method=io.netty.buffer.PoolArena.freeChunk(Lio/netty/buffer/PoolChunk;JLio/netty/buffer/PoolArena$SizeClass;)V @ 96
Event: 418.274 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002b5c524 method=io.netty.buffer.PoolArena.freeChunk(Lio/netty/buffer/PoolChunk;JLio/netty/buffer/PoolArena$SizeClass;)V @ 96
Event: 418.321 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x00000000029c4fc8 method=io.netty.buffer.PoolArena.freeChunk(Lio/netty/buffer/PoolChunk;JLio/netty/buffer/PoolArena$SizeClass;)V @ 96
Event: 418.839 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002b20190 method=io.netty.channel.ChannelOutboundBuffer.remove0(Ljava/lang/Throwable;Z)Z @ 6
Event: 418.856 Thread 0x0000000019b3e000 Uncommon trap: reason=unstable_if action=reinterpret pc=0x0000000002c3361c method=io.netty.util.Recycler$WeakOrderQueue.add(Lio/netty/util/Recycler$DefaultHandle;)V @ 36

Classes redefined (0 events):
No events

Internal exceptions (10 events):
Event: 0.675 Thread 0x000000000020e800 Exception <a 'java/lang/NoClassDefFoundError': org/slf4j/impl/StaticLoggerBinder> (0x00000000d72ac3c0) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\classfile\systemDictionary.cpp, line 199]
Event: 0.683 Thread 0x000000000020e800 Exception <a 'java/lang/NoClassDefFoundError': org/apache/log4j/Priority> (0x00000000d72bb238) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\classfile\systemDictionary.cpp, line 199]
Event: 0.700 Thread 0x000000000020e800 Exception <a 'java/lang/ClassCastException': sun.misc.Cleaner cannot be cast to java.lang.Runnable> (0x00000000d73afc40) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\interpreter\interpreterRuntime.cpp, line
Event: 0.701 Thread 0x000000000020e800 Exception <a 'java/lang/NoClassDefFoundError': javassist/ClassPath> (0x00000000d73ba370) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\classfile\systemDictionary.cpp, line 199]
Event: 0.973 Thread 0x000000000020e800 Exception <a 'java/lang/NoSuchFieldError': method resolution failed> (0x00000000d7666800) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\prims\methodHandles.cpp, line 1167]
Event: 0.975 Thread 0x000000000020e800 Exception <a 'java/lang/NoSuchFieldError': method resolution failed> (0x00000000d7673ec0) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\prims\methodHandles.cpp, line 1167]
Event: 312.070 Thread 0x000000001a5c9000 Exception <a 'java/lang/NoSuchMethodError': java.lang.Object.lambda$identity$2(Ljava/lang/Object;)Ljava/lang/Object;> (0x00000000e3466588) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\interpreter\linkResolv
Event: 319.814 Thread 0x000000001a5c9000 Implicit null exception at 0x0000000002c4de6e to 0x0000000002c4f2e9
Event: 414.327 Thread 0x0000000019b3e000 Exception <a 'java/lang/OutOfMemoryError'> (0x00000000816f6ef8) thrown at [C:\re\workspace\8-2-build-windows-amd64-cygwin\jdk8u171\10807\hotspot\src\share\vm\gc_interface/collectedHeap.inline.hpp, line 159]
Event: 418.839 Thread 0x0000000019b3e000 Implicit null exception at 0x0000000002b1f835 to 0x0000000002b20171

Events (10 events):
Event: 418.274 Thread 0x0000000019b3e000 DEOPT UNPACKING pc=0x000000000275583b sp=0x000000001a04eef0 mode 2
Event: 418.321 Thread 0x0000000019b3e000 Uncommon trap: trap_request=0xffffff65 fr.pc=0x00000000029c4fc8
Event: 418.321 Thread 0x0000000019b3e000 DEOPT PACKING pc=0x00000000029c4fc8 sp=0x000000001a04eee0
Event: 418.321 Thread 0x0000000019b3e000 DEOPT UNPACKING pc=0x000000000275583b sp=0x000000001a04eec8 mode 2
Event: 418.839 Thread 0x0000000019b3e000 Uncommon trap: trap_request=0xffffff65 fr.pc=0x0000000002b20190
Event: 418.839 Thread 0x0000000019b3e000 DEOPT PACKING pc=0x0000000002b20190 sp=0x000000001a04f120
Event: 418.839 Thread 0x0000000019b3e000 DEOPT UNPACKING pc=0x000000000275583b sp=0x000000001a04f080 mode 2
Event: 418.856 Thread 0x0000000019b3e000 Uncommon trap: trap_request=0xffffff65 fr.pc=0x0000000002c3361c
Event: 418.856 Thread 0x0000000019b3e000 DEOPT PACKING pc=0x0000000002c3361c sp=0x000000001a04f080
Event: 418.856 Thread 0x0000000019b3e000 DEOPT UNPACKING pc=0x000000000275583b sp=0x000000001a04f010 mode 2


Dynamic libraries:
0x000000013fff0000 - 0x0000000140027000 	F:\java\jdk1.8\bin\java.exe
0x0000000076ff0000 - 0x000000007719a000 	C:\Windows\SYSTEM32\ntdll.dll
0x0000000076ed0000 - 0x0000000076fef000 	C:\Windows\system32\kernel32.dll
0x000007fefcd20000 - 0x000007fefcd8a000 	C:\Windows\system32\KERNELBASE.dll
0x000007fefebf0000 - 0x000007fefeccb000 	C:\Windows\system32\ADVAPI32.dll
0x000007fefeae0000 - 0x000007fefeb7f000 	C:\Windows\system32\msvcrt.dll
0x000007fefeb80000 - 0x000007fefeb9f000 	C:\Windows\SYSTEM32\sechost.dll
0x000007fefe340000 - 0x000007fefe46d000 	C:\Windows\system32\RPCRT4.dll
0x0000000076dd0000 - 0x0000000076eca000 	C:\Windows\system32\USER32.dll
0x000007fefe0b0000 - 0x000007fefe117000 	C:\Windows\system32\GDI32.dll
0x000007fefee30000 - 0x000007fefee3e000 	C:\Windows\system32\LPK.dll
0x000007fefe1c0000 - 0x000007fefe28b000 	C:\Windows\system32\USP10.dll
0x000007fefb460000 - 0x000007fefb654000 	C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7601.18837_none_fa3b1e3d17594757\COMCTL32.dll
0x000007fefe7a0000 - 0x000007fefe811000 	C:\Windows\system32\SHLWAPI.dll
0x000007fefee00000 - 0x000007fefee2e000 	C:\Windows\system32\IMM32.DLL
0x000007fefecd0000 - 0x000007fefedd9000 	C:\Windows\system32\MSCTF.dll
0x000000006a760000 - 0x000000006a832000 	F:\java\jdk1.8\jre\bin\msvcr100.dll
0x0000000052900000 - 0x00000000531a0000 	F:\java\jdk1.8\jre\bin\server\jvm.dll
0x000007fef9550000 - 0x000007fef9559000 	C:\Windows\system32\WSOCK32.dll
0x000007fefeba0000 - 0x000007fefebed000 	C:\Windows\system32\WS2_32.dll
0x000007fefe290000 - 0x000007fefe298000 	C:\Windows\system32\NSI.dll
0x000007fefad40000 - 0x000007fefad7b000 	C:\Windows\system32\WINMM.dll
0x000007fefbda0000 - 0x000007fefbdac000 	C:\Windows\system32\VERSION.dll
0x00000000771c0000 - 0x00000000771c7000 	C:\Windows\system32\PSAPI.DLL
0x0000000073540000 - 0x000000007354f000 	F:\java\jdk1.8\jre\bin\verify.dll
0x0000000070720000 - 0x0000000070749000 	F:\java\jdk1.8\jre\bin\java.dll
0x0000000070e00000 - 0x0000000070e16000 	F:\java\jdk1.8\jre\bin\zip.dll
0x000007fefd0a0000 - 0x000007fefde2a000 	C:\Windows\system32\SHELL32.dll
0x000007fefdeb0000 - 0x000007fefe0ac000 	C:\Windows\system32\ole32.dll
0x000007fefcce0000 - 0x000007fefccef000 	C:\Windows\system32\profapi.dll
0x0000000073550000 - 0x000000007355d000 	F:\java\jdk1.8\jre\bin\management.dll
0x0000000070de0000 - 0x0000000070dfa000 	F:\java\jdk1.8\jre\bin\net.dll
0x000007fefc450000 - 0x000007fefc4a5000 	C:\Windows\system32\mswsock.dll
0x000007fefc440000 - 0x000007fefc447000 	C:\Windows\System32\wship6.dll
0x000007fefb1e0000 - 0x000007fefb1f5000 	C:\Windows\system32\NLAapi.dll
0x000007fef1050000 - 0x000007fef1065000 	C:\Windows\system32\napinsp.dll
0x000007fef1030000 - 0x000007fef1049000 	C:\Windows\system32\pnrpnsp.dll
0x000007fefc2d0000 - 0x000007fefc32b000 	C:\Windows\system32\DNSAPI.dll
0x000007fefa5c0000 - 0x000007fefa5cb000 	C:\Windows\System32\winrnr.dll
0x000007fefa2a0000 - 0x000007fefa2b0000 	C:\Windows\system32\wshbth.dll
0x000007fefbe70000 - 0x000007fefbe77000 	C:\Windows\System32\wshtcpip.dll
0x000007fefa970000 - 0x000007fefa997000 	C:\Windows\system32\IPHLPAPI.DLL
0x000007fefa950000 - 0x000007fefa95b000 	C:\Windows\system32\WINNSI.DLL
0x000007fef8b50000 - 0x000007fef8b58000 	C:\Windows\system32\rasadhlp.dll
0x000007fef9e90000 - 0x000007fef9ee3000 	C:\Windows\System32\fwpuclnt.dll
0x0000000070b80000 - 0x0000000070b91000 	F:\java\jdk1.8\jre\bin\nio.dll
0x000007fefc4b0000 - 0x000007fefc4c8000 	C:\Windows\system32\CRYPTSP.dll
0x000007fefc1b0000 - 0x000007fefc1f7000 	C:\Windows\system32\rsaenh.dll
0x000007fefd080000 - 0x000007fefd09e000 	C:\Windows\system32\USERENV.dll
0x000007fefcb40000 - 0x000007fefcb4f000 	C:\Windows\system32\CRYPTBASE.dll
0x000007fef9cf0000 - 0x000007fef9d08000 	C:\Windows\system32\dhcpcsvc.DLL
0x000007fef9cd0000 - 0x000007fef9ce1000 	C:\Windows\system32\dhcpcsvc6.DLL
0x000007fef67e0000 - 0x000007fef6905000 	C:\Windows\system32\dbghelp.dll

VM Arguments:
java_command: server-v1.0.jar -d C:\Users\Administrator\Desktop\test\ -s 172.21.6.57 -t taxi
java_class_path (initial): server-v1.0.jar
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=F:\java\jdk1.8
CLASSPATH=.;F:\java\jdk1.8\lib\dt.jar;F:\java\jdk1.8\lib\tools.jar;
PATH=F:\apache-maven-3.3.9\bin;F:\java\jdk1.8\bin;F:\java\jdk1.8\jre\bin;C:\Program Files\MySQL\MySQL Server 5.7\bin;C:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\;C:\Windows\system32;C:\Windows;C:\Windows\system32\wbem; F:\java\jdk1.8\bin;F:\java\jdk1.8\jre\bin;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;E:\Software\Node.js\;E:\Go\bin;E:\Software\CMDer\bin;D:\software\python3\Scripts\;D:\software\python3\;D:\software\codeblocks\MinGW\bin;C:\Users\Administrator\AppData\Roaming\npm
USERNAME=Administrator
OS=Windows_NT
PROCESSOR_IDENTIFIER=Intel64 Family 6 Model 60 Stepping 3, GenuineIntel



---------------  S Y S T E M  ---------------

OS: Windows 7 , 64 bit Build 7601 (6.1.7601.23889)

CPU:total 4 (initial active 4) (2 cores per cpu, 2 threads per core) family 6 model 60 stepping 3, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, avx2, aes, clmul, erms, lzcnt, ht, tsc, tscinvbit, bmi1, bmi2

Memory: 4k page, physical 8302960k(1130368k free), swap 16604060k(7792288k free)

vm_info: Java HotSpot(TM) 64-Bit Server VM (25.171-b11) for windows-amd64 JRE (1.8.0_171-b11), built on Mar 28 2018 16:06:12 by "java_re" with MS VC++ 10.0 (VS2010)

time: Fri Apr 05 19:10:48 2019
elapsed time: 419 seconds (0d 0h 6m 59s)

原因：典型的内存错误 。发生了FullGC，老年代不够用了。那么应该如果调整JVM参数，不让他报错呢？光增大老年代大小就可以了吗？万一内存就这么大怎么办？

按说不应该用这么多内存啊，是不是发生了内存泄漏？怎么查看这个代码存不存在内存泄漏的情况?

我们都知道发生内存泄漏的情况会很多，比如

（1）静态集合类，例如HashMap和Vector。如果这些容器为静态的，由于它们的声明周期与程序一致，那么容器中的对象在程序结束之前将不能被释放，从而造成内存泄漏。

（2）各种连接，例如数据库的连接、网络连接以及IO连接等。

（3）监听器。在Java语言中，往往会使用到监听器。通常一个应用中会用到多个监听器，但在释放对象的同时往往没有相应的删除监听器，这也可能导致内存泄漏。

（4）变量不合理的作用域。一般而言，如果一个变量定义的作用域大于其使用范围，很有可能会造成内存泄漏，另一方面如果没有及时地把对象设置为Null，很有可能会导致内存泄漏的放生，如下：

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class Server{

private String msg;

public void receiveMsg(){

readFromNet();//从网络接收数据保存在msg中

saveDB()//把msg保存到数据库中

｝

从上面的代码中，通过readFromNet()方法接收的消息保存在变量msg中，然后调用saveDB()方法把msg的内容保存到数据库中，此时msg已经没用了，但是由于msg的声明周期与对象的声明周期相同，此时msg还不能被回收，因此造成了内存泄漏。对于这个问题，有如下两种解决方案：第一种方法，由于msg的作用范围只在receiveMsg()方法内，因此可以把msg定义为这个方法的局部变量，当方法结束后，msg的声明周期就会结束，此时垃圾回收器就会可以回收msg的内容了；第二种方法，在使用完msg后就设置为null，这样垃圾回收器也会自动回收msg内容所占用的内存空间。

（5）单例模式可能会造成内存泄漏

利用工具进行检查

利用jconsole发现（直接在cmd里输入jconsole就能出来），老年代确实用满了，大概是1.6G的样子，名称 = ‘PS MarkSweep’, 收集 = 73, 总花费时间 = 5 分钟，可以发现光老年代的GC时间达到了5分钟，这不行啊。总共运行7分钟程序，光GC时间就5分钟。然后我调大了老年代大小，设置成了堆大小是4G，新生代是400m。但是运行了一段时间后，内存占用又上升到了3.2G左右，这个这么占内存吗？

利用jvisualvm.exe 可以查看JVM参数，但是不知道为啥这个程序看不见。。。显示出来一个 - 就。通过java命令行加入 JVM参数后，就显示出来了。

通过这个工具发现了有一些对象，年代数特别大，58.怎么回事呢？还有一个疑问，当类加载数直线上升时，代表了啥？（类加载数从1000到5000）

会不会和ByteBuffer有关

因为在代码中用到了ByteBuffer，所以怀疑是不是和这个有关。
代码中有一段是这样的

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randomAccessFile = new RandomAccessFile(f, "r");
FileChannel channel = randomAccessFile.getChannel();
ByteBuffer buffer = ByteBuffer.allocate(1048576);
int bytesRead = channel.read(buffer);
ByteBuffer stringBuffer = ByteBuffer.allocate(1024);

我们都知道写NIO程序经常使用ByteBuffer来读取或者写入数据，那么使用ByteBuffer.allocate(capability)还是使用ByteBuffer.allocteDirect(capability)来分配缓存了？第一种方式是分配JVM堆内存，属于GC管辖范围，由于需要拷贝所以速度相对较慢；第二种方式是分配OS本地内存，不属于GC管辖范围，由于不需要内存拷贝所以速度相对较快，但是内存分配起来比较慢，所以并非不论什么时候allocateDirect的操作效率都是最高的。但是当操作数据量非常小时，两种分配方式操作使用时间基本是同样的（大小是1024000之前都差不多），第一种方式有时可能会更快，可是当数据量非常大时，用ByteBuffer.allocteDirect(capability)这个就比较快了。

无意收获

今天读了一篇博客，http://www.ityouknow.com/arch/2017/02/12/a-script-caused-bloody-case.html.其中，有这个一段，“重新启动观察之后mimor gc的频率确实有所下降，测试大约过了3小时候之后又反馈tomcat down掉了，继续分析启动参数配置的时候发现了这么一句-XX:-+DisableExplicitGC,显示的禁止了System.gc(),但是使用了java.nio的大量框架中使用System.gc()来执行gc期通过full gc来强迫已经无用的DirectByteBuffer对象释放掉它们关联的native memory,如果禁用会导致OOM,随即怀疑是否是这个参数引发的问题，在启动参数中去掉它。”
大意是我没有禁用，所以不能GC，所以OOM。明白了。。。。。如果我们的应用中使用了java nio中的direct memory，那么使用-XX:+DisableExplicitGC一定要小心，存在潜在的内存泄露风险。

但是这个程序的内存跑到后期的时候，占用的内存还是很大，老年代GC时间很长，虽然没有OOM了，但是这样也不行啊。。。

ByteBuffer操作介绍

https://www.cnblogs.com/jiduoduo/p/6397454.html

小插曲

因为这个程序占用了CPU 几乎100%，造成了虚拟机抱了这些

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[root@rabbitmq _posts]# 
Message from syslogd@rabbitmq at May 25 20:39:18 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 33s! [rtkit-daemon:736]

Message from syslogd@rabbitmq at May 25 20:39:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 35s! [scsi_eh_1:275]

Message from syslogd@rabbitmq at May 25 20:39:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [pickup:4845]

Message from syslogd@rabbitmq at May 25 20:39:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [dhclient:871]

Message from syslogd@rabbitmq at May 25 20:39:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [master:2807]

Message from syslogd@rabbitmq at May 25 20:39:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 29s! [abrt-hook-ccpp:5402]

Message from syslogd@rabbitmq at May 25 20:39:58 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [abrt-hook-ccpp:5402]

原因是占用过多CPU，造成内核软死锁（soft lockup）。Soft lockup名称解释：所谓，soft lockup就是说，这个bug没有让系统彻底死机，但是若干个进程（或者kernel thread）被锁死在了某个状态（一般在内核区域），很多情况下这个是由于内核锁的使用的问题。

知识点

  • Code Cache (non-heap):HotSpot Java虚拟机包括一个用于编译和保存本地代码（native code）的内存，叫做“代码缓存区”（code cache） （这里大概是6、7M的大小）

你会写导致内存泄漏的代码吗？

https://stackoverflow.com/questions/6470651/creating-a-memory-leak-with-java

参考

https://blog.csdn.net/jsqfengbao/article/details/44787267
https://www.cnblogs.com/mengfanrong/p/3984841.html

-------------本文结束感谢您的阅读-------------