Jvm 了解java运行时环境给出的内存不足报告，以找出原因
我的内存不足，无法找到原因 如果我没有错的话，机器有足够的内存，而且java堆大小也足够了。因此，问题应该是我无法发现的其他强加限制 为了减少原因，我禁用了压缩的OOP（-XX:-UseCompressedOops）。 另外，为了简化报告，我将最大和最小堆大小设置为相同的值（-Xmx348m-Xms348m） 操作系统是Centos 7，禁用了Overmit（vm.Overmit_memory=2，vm.Overmit_ratio=60，vm.min_free_kbytes=51200，vm.swappiness=80），以避免OOM杀手杀死我的应用程序。为了证明我添加了交换内存 以防万一，这台机器是一个虚拟GCP实例，具有600MB的物理RAM和1600MB的交换空间 在查看报告后，我的印象是没有足够的元空间—由“>99%”提交内存引导的虚拟空间。但是Jvm 了解java运行时环境给出的内存不足报告，以找出原因,jvm,out-of-memory,Jvm,Out Of Memory,我的内存不足，无法找到原因 如果我没有错的话，机器有足够的内存，而且java堆大小也足够了。因此，问题应该是我无法发现的其他强加限制 为了减少原因，我禁用了压缩的OOP（-XX:-UseCompressedOops）。 另外，为了简化报告，我将最大和最小堆大小设置为相同的值（-Xmx348m-Xms348m） 操作系统是Centos 7，禁用了Overmit（vm.Overmit_memory=2，vm.Overmit_ratio=60，vm.min_free_kbytes=51200，vm.s
MaxMetaspaceSize# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 16384 bytes for committing reserved memory.
# Possible reasons:
# The system is out of physical RAM or swap space
# Possible solutions:
# Reduce memory load on the system
# Increase physical memory or swap space
# Check if swap backing store is full
# Decrease Java heap size (-Xmx/-Xms)
# Decrease number of Java threads
# Decrease Java thread stack sizes (-Xss)
# Set larger code cache with -XX:ReservedCodeCacheSize=
# This output file may be truncated or incomplete.
#
# Out of Memory Error (os_linux.cpp:2976), pid=19661, tid=27722
#
# JRE version: OpenJDK Runtime Environment 18.9 (11.0.11+9) (build 11.0.11+9-LTS)
# Java VM: OpenJDK 64-Bit Server VM 18.9 (11.0.11+9-LTS, mixed mode, tiered, serial gc, linux-amd64)
# No core dump will be written. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
--------------- S U M M A R Y ------------
Command Line: -Xmx348m -Xms348m -XX:-UseCompressedOops -Xloggc:/home/botofono/actual/logs/gc.log webServer.Boot
Host: Intel(R) Xeon(R) CPU @ 2.20GHz, 1 cores, 587M, CentOS Linux release 7.9.2009 (Core)
Time: Thu Apr 29 22:11:53 2021 UTC elapsed time: 20719.354308 seconds (0d 5h 45m 19s)
--------------- T H R E A D ---------------
Current thread (0x0000558766169800): JavaThread "Main-akka.actor.internal-dispatcher-339" [_thread_new, id=27722, stack(0x00007f182f8fb000,0x00007f182f9fc000)]
Stack: [0x00007f182f8fb000,0x00007f182f9fc000], sp=0x00007f182f9fa970, free space=1022k
Native frames: (J=compiled Java code, A=aot compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0xeeb895] VMError::report_and_die(int, char const*, char const*, __va_list_tag*, Thread*, unsigned char*, void*, void*, char const*, int, unsigned long)+0x235
V [libjvm.so+0xeec763] VMError::report_and_die(Thread*, char const*, int, unsigned long, VMErrorType, char const*, __va_list_tag*)+0x43
V [libjvm.so+0x6e8370] report_vm_out_of_memory(char const*, int, unsigned long, VMErrorType, char const*, ...)+0x110
V [libjvm.so+0xc3d152] os::pd_commit_memory(char*, unsigned long, bool)+0xc2
V [libjvm.so+0xc33ade] os::commit_memory(char*, unsigned long, bool)+0x2e
V [libjvm.so+0xc3e920] os::pd_create_stack_guard_pages(char*, unsigned long)+0x80
V [libjvm.so+0xe810dc] JavaThread::create_stack_guard_pages()+0x5c
V [libjvm.so+0xe82d3c] JavaThread::run()+0x2c
V [libjvm.so+0xe7ef9a] Thread::call_run()+0x16a
V [libjvm.so+0xc435d8] thread_native_entry(Thread*)+0xf8
--------------- P R O C E S S ---------------
Threads class SMR info:
_java_thread_list=0x000055876617f810, length=23, elements={
0x00007f188008f800, 0x00007f1880094000, 0x00007f18800a8800, 0x00007f18800aa800,
0x00007f18800ad000, 0x00007f18800af000, 0x00007f18800b1000, 0x00007f1880151800,
0x00007f1880989000, 0x00007f1830004800, 0x00007f1880d5e000, 0x00007f184c00b800,
0x00007f184c00d800, 0x00007f18341d2000, 0x00007f1880017000, 0x00007f18301b2000,
0x00007f1838013000, 0x00007f183801e800, 0x00007f184c006000, 0x00007f188084a800,
0x00007f1844226800, 0x00007f18280a7000, 0x0000558766169800
}
Java Threads: ( => current thread )
0x00007f188008f800 JavaThread "Reference Handler" daemon [_thread_blocked, id=19712, stack(0x00007f18_8567_5000,0x00007f18_8577_6000)]
0x00007f1880094000 JavaThread "Finalizer" daemon [_thread_blocked, id=19713, stack(0x00007f1885574000,0x00007f1885675000)]
... some threads removed
Other Threads:
0x00007f1880087800 VMThread "VM Thread" [stack: 0x00007f1885778000,0x00007f1885878000] [id=19711]
0x00007f188010e800 WatcherThread [stack: 0x00007f1884f6f000,0x00007f188506f000] [id=19719]
Threads with active compile tasks:
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: None
Heap:
def new generation total 106_944K, used 62_805K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95_104K, 60% used [0x00007f1852c00000, 0x00007f185648b2c0, 0x00007f18588e0000)
from space 11_840K, 41% used [0x00007f1859470000, 0x00007f185993a480, 0x00007f185a000000)
to space 11_840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237_568K, used 30_327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237_568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 92_749K, capacity 97_419K, committed 97_536K, reserved 98_304K
Card table byte_map: [0x0000_7f18_89a1_3000,0x0000_7f18_89ac_2000] _byte_map_base: 0x0000_7ed8_fd77_d000
Polling page: 0x00007f1889be0000
Metaspace:
Usage:
95.14 MB capacity, 90.58 MB ( 95%) used, 3.91 MB ( 4%) free+waste, 666.38 KB ( <1%) overhead.
Virtual space:
96.00 MB reserved, 95.25 MB (>99%) committed
Chunk freelists:
62.00 KB
MaxMetaspaceSize: unlimited
CodeHeap 'non-profiled nmethods': size=120036Kb used=3874Kb max_used=3874Kb free=116161Kb
bounds [0x00007f1870349000, 0x00007f1870719000, 0x00007f1877882000]
CodeHeap 'profiled nmethods': size=120032Kb used=14201Kb max_used=14201Kb free=105830Kb
bounds [0x00007f1868e11000, 0x00007f1869bf1000, 0x00007f1870349000]
CodeHeap 'non-nmethods': size=5692Kb used=1350Kb max_used=1376Kb free=4341Kb
bounds [0x00007f1868882000, 0x00007f1868af2000, 0x00007f1868e11000]
total_blobs=8839 nmethods=8022 adapters=730
compilation: enabled
stopped_count=0, restarted_count=0
full_count=0
Compilation events (20 events): <removed because I think this is irrelevant>
GC Heap History (16 events):
Event: 5.753 GC heap before
{Heap before GC invocations=0 (full 0):
def new generation total 106944K, used 72981K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 76% used [0x00007f1852c00000, 0x00007f1857345530, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 0K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 0% used [0x00007f185a000000, 0x00007f185a000000, 0x00007f185a000200, 0x00007f1868800000)
Metaspace used 20877K, capacity 20989K, committed 21248K, reserved 22528K
}
Event: 5.805 GC heap after
{Heap after GC invocations=1 (full 1):
def new generation total 106944K, used 0K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 12811K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 5% used [0x00007f185a000000, 0x00007f185ac82de0, 0x00007f185ac82e00, 0x00007f1868800000)
Metaspace used 20877K, capacity 20989K, committed 21248K, reserved 22528K
}
Event: 8.408 GC heap before
{Heap before GC invocations=1 (full 1):
def new generation total 106944K, used 71167K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 74% used [0x00007f1852c00000, 0x00007f185717fc78, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 12811K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 5% used [0x00007f185a000000, 0x00007f185ac82de0, 0x00007f185ac82e00, 0x00007f1868800000)
Metaspace used 34498K, capacity 35182K, committed 35328K, reserved 36864K
}
Event: 8.453 GC heap after
{Heap after GC invocations=2 (full 2):
def new generation total 106944K, used 0K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 17823K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 7% used [0x00007f185a000000, 0x00007f185b167fa0, 0x00007f185b168000, 0x00007f1868800000)
Metaspace used 34498K, capacity 35182K, committed 35328K, reserved 36864K
}
Event: 11.876 GC heap before
{Heap before GC invocations=2 (full 2):
def new generation total 106944K, used 95104K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 100% used [0x00007f1852c00000, 0x00007f18588e0000, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 17823K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 7% used [0x00007f185a000000, 0x00007f185b167fa0, 0x00007f185b168000, 0x00007f1868800000)
Metaspace used 55383K, capacity 57083K, committed 57088K, reserved 57344K
}
Event: 11.896 GC heap after
{Heap after GC invocations=3 (full 2):
def new generation total 106944K, used 5550K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 46% used [0x00007f1859470000, 0x00007f18599dbb88, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 17823K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 7% used [0x00007f185a000000, 0x00007f185b167fa0, 0x00007f185b168000, 0x00007f1868800000)
Metaspace used 55383K, capacity 57083K, committed 57088K, reserved 57344K
}
Event: 12.270 GC heap before
{Heap before GC invocations=3 (full 2):
def new generation total 106944K, used 18749K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 13% used [0x00007f1852c00000, 0x00007f18538e3b30, 0x00007f18588e0000)
from space 11840K, 46% used [0x00007f1859470000, 0x00007f18599dbb88, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 17823K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 7% used [0x00007f185a000000, 0x00007f185b167fa0, 0x00007f185b168000, 0x00007f1868800000)
Metaspace used 56949K, capacity 58844K, committed 58880K, reserved 59392K
}
Event: 12.325 GC heap after
{Heap after GC invocations=4 (full 3):
def new generation total 106944K, used 0K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 23993K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 10% used [0x00007f185a000000, 0x00007f185b76e6c0, 0x00007f185b76e800, 0x00007f1868800000)
Metaspace used 56949K, capacity 58844K, committed 58880K, reserved 59392K
}
Event: 16.167 GC heap before
{Heap before GC invocations=4 (full 3):
def new generation total 106944K, used 95104K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 100% used [0x00007f1852c00000, 0x00007f18588e0000, 0x00007f18588e0000)
from space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 23993K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 10% used [0x00007f185a000000, 0x00007f185b76e6c0, 0x00007f185b76e800, 0x00007f1868800000)
Metaspace used 76922K, capacity 79828K, committed 79872K, reserved 79872K
}
Event: 16.199 GC heap after
{Heap after GC invocations=5 (full 3):
def new generation total 106944K, used 6700K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 56% used [0x00007f18588e0000, 0x00007f1858f6b2e8, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 23993K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 10% used [0x00007f185a000000, 0x00007f185b76e6c0, 0x00007f185b76e800, 0x00007f1868800000)
Metaspace used 76922K, capacity 79828K, committed 79872K, reserved 79872K
}
Event: 3771.331 GC heap before
{Heap before GC invocations=5 (full 3):
def new generation total 106944K, used 101804K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 100% used [0x00007f1852c00000, 0x00007f18588e0000, 0x00007f18588e0000)
from space 11840K, 56% used [0x00007f18588e0000, 0x00007f1858f6b2e8, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 23993K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 10% used [0x00007f185a000000, 0x00007f185b76e6c0, 0x00007f185b76e800, 0x00007f1868800000)
Metaspace used 85703K, capacity 89394K, committed 89600K, reserved 90112K
}
Event: 3772.694 GC heap after
{Heap after GC invocations=6 (full 3):
def new generation total 106944K, used 3802K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 32% used [0x00007f1859470000, 0x00007f1859826b18, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 30327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 85703K, capacity 89394K, committed 89600K, reserved 90112K
}
Event: 10014.891 GC heap before
{Heap before GC invocations=6 (full 3):
def new generation total 106944K, used 98906K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 100% used [0x00007f1852c00000, 0x00007f18588e0000, 0x00007f18588e0000)
from space 11840K, 32% used [0x00007f1859470000, 0x00007f1859826b18, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 30327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 91886K, capacity 96588K, committed 96768K, reserved 98304K
}
Event: 10021.354 GC heap after
{Heap after GC invocations=7 (full 3):
def new generation total 106944K, used 5346K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 45% used [0x00007f18588e0000, 0x00007f1858e18a80, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 30327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 91886K, capacity 96588K, committed 96768K, reserved 98304K
}
Event: 14674.359 GC heap before
{Heap before GC invocations=7 (full 3):
def new generation total 106944K, used 100450K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 100% used [0x00007f1852c00000, 0x00007f18588e0000, 0x00007f18588e0000)
from space 11840K, 45% used [0x00007f18588e0000, 0x00007f1858e18a80, 0x00007f1859470000)
to space 11840K, 0% used [0x00007f1859470000, 0x00007f1859470000, 0x00007f185a000000)
tenured generation total 237568K, used 30327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 92499K, capacity 97146K, committed 97280K, reserved 98304K
}
Event: 14674.620 GC heap after
{Heap after GC invocations=8 (full 3):
def new generation total 106944K, used 4905K [0x00007f1852c00000, 0x00007f185a000000, 0x00007f185a000000)
eden space 95104K, 0% used [0x00007f1852c00000, 0x00007f1852c00000, 0x00007f18588e0000)
from space 11840K, 41% used [0x00007f1859470000, 0x00007f185993a480, 0x00007f185a000000)
to space 11840K, 0% used [0x00007f18588e0000, 0x00007f18588e0000, 0x00007f1859470000)
tenured generation total 237568K, used 30327K [0x00007f185a000000, 0x00007f1868800000, 0x00007f1868800000)
the space 237568K, 12% used [0x00007f185a000000, 0x00007f185bd9dfc0, 0x00007f185bd9e000, 0x00007f1868800000)
Metaspace used 92499K, capacity 97146K, committed 97280K, reserved 98304K
}
Deoptimization events (20 events): <removed because I think this is irrelevant>
Classes redefined (0 events):
No events
Internal exceptions (20 events): <removed because I think this is irrelevant>
Events (20 events):
Event: 20243.287 Executing VM operation: RevokeBias done
Event: 20243.287 Thread 0x0000558766169800 Thread exited: 0x0000558766169800
Event: 20303.307 Thread 0x0000558766169800 Thread added: 0x0000558766169800
Event: 20303.307 Protecting memory [0x00007f182f8fb000,0x00007f182f8ff000] with protection modes 0
Event: 20363.307 Executing VM operation: RevokeBias
Event: 20363.307 Executing VM operation: RevokeBias done
Event: 20363.307 Thread 0x0000558766169800 Thread exited: 0x0000558766169800
Event: 20423.327 Thread 0x0000558766169800 Thread added: 0x0000558766169800
Event: 20423.327 Protecting memory [0x00007f182f8fb000,0x00007f182f8ff000] with protection modes 0
Event: 20429.016 Executing VM operation: ThreadDump
Event: 20429.017 Executing VM operation: ThreadDump done
Event: 20429.017 Executing VM operation: RevokeBias
Event: 20429.017 Executing VM operation: RevokeBias done
Event: 20483.484 Thread 0x0000558766169800 Thread exited: 0x0000558766169800
Event: 20543.347 Thread 0x0000558766169800 Thread added: 0x0000558766169800
Event: 20543.347 Protecting memory [0x00007f182f8fb000,0x00007f182f8ff000] with protection modes 0
Event: 20603.382 Executing VM operation: RevokeBias
Event: 20603.382 Executing VM operation: RevokeBias done
Event: 20603.382 Thread 0x0000558766169800 Thread exited: 0x0000558766169800
Event: 20679.594 Thread 0x0000558766169800 Thread added: 0x0000558766169800
Dynamic libraries: <removed because I think this is irrelevant>
VM Arguments:
jvm_args: -Xmx348m -Xms348m -XX:-UseCompressedOops -Xloggc:/home/botofono/actual/logs/gc.log
java_command: webServer.Boot
java_class_path (initial): <removed because I think this is irrelevant>
Launcher Type: SUN_STANDARD
[Global flags]
intx CICompilerCount = 2 {product} {ergonomic}
size_t InitialHeapSize = 364904448 {product} {command line}
size_t MaxHeapSize = 364904448 {product} {command line}
size_t MaxNewSize = 121634816 {product} {ergonomic}
size_t MinHeapDeltaBytes = 196608 {product} {ergonomic}
size_t NewSize = 121634816 {product} {ergonomic}
uintx NonNMethodCodeHeapSize = 5825164 {pd product} {ergonomic}
uintx NonProfiledCodeHeapSize = 122916538 {pd product} {ergonomic}
size_t OldSize = 243269632 {product} {ergonomic}
uintx ProfiledCodeHeapSize = 122916538 {pd product} {ergonomic}
uintx ReservedCodeCacheSize = 251658240 {pd product} {ergonomic}
bool SegmentedCodeCache = true {product} {ergonomic}
bool UseCompressedOops = false {lp64_product} {command line}
bool UseSerialGC = true {product} {ergonomic}
Logging:
Log output configuration:
#0: stdout all=warning uptime,level,tags
#1: stderr all=off uptime,level,tags
#2: file=/home/botofono/actual/logs/gc.log all=off,gc=info uptime,level,tags filecount=5,filesize=20480K
Environment Variables:
JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.9.11-0.el7_9.x86_64
PATH=/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/usr/lib/jvm/java-11-openjdk-11.0.9.11-0.el7_9.x86_64/bin:/home/botofono/.local/bin:/home/botofono/bin
SHELL=/bin/bash
LANG=en_US.UTF-8
Signal Handlers: <removed because I think this is irrelevant>
--------------- S Y S T E M ---------------
OS:CentOS Linux release 7.9.2009 (Core)
uname:Linux 3.10.0-1127.19.1.el7.x86_64 #1 SMP Tue Aug 25 17:23:54 UTC 2020 x86_64
OS uptime: 141 days 11:42 hours
libc:glibc 2.17 NPTL 2.17
rlimit (soft/hard): STACK 8192k/infinity , CORE 0k/infinity , NPROC 2285/2285 , NOFILE 4096/4096 , AS infinity/infinity , CPU infinity/infinity , DATA infinity/infinity , FSIZE infinity/infinity , MEMLOCK 64k/64k
load average:15.02 4.20 1.48
/proc/meminfo:
MemTotal: 601120 kB
MemFree: 175096 kB
MemAvailable: 165832 kB
Buffers: 92 kB
Cached: 126708 kB
SwapCached: 33032 kB
Active: 140336 kB
Inactive: 180384 kB
Active(anon): 100956 kB
Inactive(anon): 100868 kB
Active(file): 39380 kB
Inactive(file): 79516 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 1662968 kB
SwapFree: 1256648 kB
Dirty: 120 kB
Writeback: 0 kB
AnonPages: 191860 kB
Mapped: 10720 kB
Shmem: 7896 kB
Slab: 55316 kB
SReclaimable: 20700 kB
SUnreclaim: 34616 kB
KernelStack: 3280 kB
PageTables: 12700 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2_023_640 kB
Committed_AS: 1_825_492 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 5776 kB
VmallocChunk: 34359730024 kB
Percpu: 176 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 51188 kB
DirectMap2M: 577536 kB
DirectMap1G: 0 kB
/sys/kernel/mm/transparent_hugepage/enabled:
[always] madvise never
/sys/kernel/mm/transparent_hugepage/defrag (defrag/compaction efforts parameter):
[always] madvise never
Process Memory:
Virtual Size: 1604356K (peak: 1604356K)
Resident Set Size: 162700K (peak: 308108K) (anon: 162536K, file: 164K, shmem: 0K)
Swapped out: 172408K
C-Heap outstanding allocations: 44874K
/proc/sys/kernel/threads-max (system-wide limit on the number of threads):
4571
/proc/sys/vm/max_map_count (maximum number of memory map areas a process may have):
65530
/proc/sys/kernel/pid_max (system-wide limit on number of process identifiers):
32768
container (cgroup) information:
container_type: cgroupv1
cpu_cpuset_cpus: 0
cpu_memory_nodes: 0
active_processor_count: 1
cpu_quota: -1
cpu_period: 100000
cpu_shares: -1
memory_limit_in_bytes: -1
memory_and_swap_limit_in_bytes: -1
memory_soft_limit_in_bytes: -1
memory_usage_in_bytes: 333606912
memory_max_usage_in_bytes: 0
KVM virtualization detected
Steal ticks since vm start: 0
Steal ticks percentage since vm start: 0.000
CPU:total 1 (initial active 1) (1 cores per cpu, 1 threads per core) family 6 model 79 stepping 0 microcode 0x1, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, avx2, aes, clmul, erms, rtm, 3dnowpref, lzcnt, tsc, tscinvbit, bmi1, bmi2, adx, fma
CPU Model and flags from /proc/cpuinfo:
model name : Intel(R) Xeon(R) CPU @ 2.20GHz
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc eagerfpu pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat md_clear spec_ctrl intel_stibp arch_capabilities
Online cpus:
0
Offline cpus:
BIOS frequency limitation:
<Not Available>
Frequency switch latency (ns):
<Not Available>
Available cpu frequencies:
<Not Available>
Current governor:
<Not Available>
Core performance/turbo boost:
<Not Available>
Memory: 4k page, physical 601120k(170480k free), swap 1662968k(1_256_904k free)
vm_info: OpenJDK 64-Bit Server VM (11.0.11+9-LTS) for linux-amd64 JRE (11.0.11+9-LTS), built on Apr 21 2021 14:19:55 by "mockbuild" with gcc 4.8.5 20150623 (Red Hat 4.8.5-44)
END.
#内存不足，Java运行时环境无法继续。
#本机内存分配（mmap）映射16384字节以提交保留内存失败。
#可能的原因：
#系统的物理RAM或交换空间不足
#可能的解决办法：
#减少系统上的内存负载
#增加物理内存或交换空间
#检查交换备份存储是否已满
#减少Java堆大小（-Xmx/-Xms）
#减少Java线程的数量
#减少Java线程堆栈大小（-Xss）
#使用-XX:ReservedCodeCacheSize设置较大的代码缓存=
#此输出文件可能被截断或不完整。
#
#内存不足错误（os_linux.cpp:2976），pid=19661，tid=27722
#
#JRE版本：OpenJDK运行时环境18.9（11.0.11+9）（构建11.0.11+9-LTS）
#Java VM:OpenJDK 64位服务器VM 18.9（11.0.11+9-LTS，混合模式，分层，串行gc，linux-amd64）
#不会写入内核转储。核心转储已被禁用。要启用核心转储，请在再次启动Java之前尝试“ulimit-c unlimited”
#
---------------是的------------
命令行：-Xmx348m-Xms348m-XX:-UseCompressedOops-Xloggc:/home/botofino/actual/logs/gc.log webServer.Boot
主机：英特尔（R）至强（R）CPU@2.20GHz，1核，587M，CentOS Linux 7.9.2009版（Core）
时间：4月29日星期四22:11:53 2021 UTC运行时间：20719.354308秒（0d 5h 45m 19s）
---------------R E A D---------------
当前线程（0x0000558766169800）：JavaThread“Main akka.actor.internal-dispatcher-339”[\u thread\u new，id=27722，堆栈（0x00007f182f8fb000,0x00007f182f9fc000）]
堆栈：[0x00007f182f8fb000,0x00007f182f9fc000]，sp=0x00007f182f9fa970，可用空间=1022k
本机帧：（J=编译的Java代码，A=aot编译的Java代码，J=解释的，Vv=虚拟机代码，C=本机代码）
V[libjvm.so+0xeeb895]VMError:：report_and_die（int，char const*，char const*，u va_list_tag*，Thread*，unsigned char*，void*，void*，char const*，int，unsigned long）+0x235
V[libjvm.so+0xeec763]VMError:：报告_和_die（线程*，字符常量*，int，无符号长，VMErrorType，字符常量*，字符列表_标记*）+0x43
V[libjvm.so+0x6e8370]报告内存不足（字符常量*，int，无符号长，VMErrorType，字符常量*，…）+0x110
V[libjvm.so+0xc3d152]os:：pd_commit_内存（char*，无符号长，bool）+0xc2
V[libjvm.so+0xc33ade]os:：提交内存（char*，无符号长，bool）+0x2e
V[libjvm.so+0xc3e920]os:：pd_create_stack_guard_pages（char*，无符号长）+0x80
V[libjvm.so+0xe810dc]JavaThread:：create_stack_guard_pages（）+0x5c
V[libjvm.so+0xe82d3c]JavaThread:：run（）+0x2c
V[libjvm.so+0xe7ef9a]Thread:：call_run（）+0x16a
V[libjvm.so+0xc435d8]线程\u本机\u项（线程*）+0xf8
---------------P R O C E S---------------
线程类SMR信息：
_java_螺纹_列表=0x000055876617f810，长度=23，元素={
0x00007f188008f800、0x00007f1880094000、0x00007f18800a8800、0x00007f18800aa800、，
0x00007f18800ad000、0x00007f18800af000、0x00007f18800b1000、0x00007F1880011800、，
0x00007F188099000、0x00007f1830004800、0x00007f1880d5e000、0x00007f184c00b800、，
0x00007f184c00d800、0x00007f18341d2000、0x00007f1880017000、0x00007f18301b2000、，
0x00007f1838013000、0x00007f183801e800、0x00007f184c006000、0x00007f188084a800、，
0x00007f1844226800、0x00007f18280a7000、0x00005587666169800
}
Java线程：（=>当前线程）
0x00007f188008f800 JavaThread“引用处理程序”守护程序[_thread_blocked，id=19712，堆栈（0x00007f18_8567_5000,0x00007f18_8577_6000）]
0x00007f1880094000 JavaThread“Finalizer”守护程序[_thread_blocked，id=19713，堆栈（0x00007f1885574000,0x00007f1885675000）]
... 一些线程被删除
其他线程：
0x00007f1880087800 VMThread“VM线程”[堆栈：0x00007f1885778000,0x00007f1885878000][id=19711]
0x00007f188010e800 WatcherThread[堆栈：0x00007f1884f6f000,0x00007f188506f000][id=19719]
具有活动编译任务的线程：
VM状态：不在安全点（正常执行）
当前由线程拥有的VM互斥体/监视器：无
堆：
def新一代总计106_944K，使用量62_805K[0x00007f1852c00000，0x00007f185a000000，0x00007f185a000000）
伊甸园空间95_104K，60%已使用[0x00007f1852c00000，0x00007f185648b2c0，0x00007f18588e0000）
从空间11_840K，41%已使用[0x00007f1859470000，0x00007f185993a480，0x00007f185a000000）
对于空间11_840K，0%已使用[0x00007f18588e0000，0x00007f18588e0000，0x00007f1859470000）
终身发电总计237_568K，使用30_327K[0x00007f185a000000，0x00007f1868800000，0x00007f1868800000）
空间237_568K，已使用12%[0x00007f185a000000、0x00007f185bd9dfc0、0x00007f185bd9e000、0x00007f1868800000）
元空间使用92_749K，容量97_419K，提交97_536K，保留98_304K
卡表字节映射：[0x0000\U 7f18\U 89a1\U 3000,0x0000\U 7f18\U 89ac\U 2000]\U字节映射\U基础：0x0000\U 7ed8\U fd77\U d000
轮询页面：0x00007f1889be0000
元空间：
用法：
95.14 MB容量，使用了90.58 MB（95%）