OS环境：阿里云 1核 1G内存；
安装软件：安装了 JDK 1.7 TOMCAT 7.X；
部署内容：部署了 java web 工程，工程正常运行；
问题：每小时在跟目录下生成一个 hs_err_pid.log
已经采取的措施：
1、配置服务器Swap
2、配置tomcat jvm 内存 （bin/catalina.sh）
未果，求牛人指点。
文件内容如下：
#
There is insufficient memory for the Java Runtime Environment to continue.
pthread_getattr_np
Possible reasons:
The system is out of physical RAM or swap space
In 32 bit mode, the process size limit was hit
Possible solutions:
Reduce memory load on the system
Increase physical memory or swap space
Check if swap backing store is full
Use 64 bit Java on a 64 bit OS
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_x86.cpp:718), pid=29229, tid=140505843455744
#
JRE version: Java(TM) SE Runtime Environment (7.0_67-b01) (build 1.7.0_67-b01)
Java VM: Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode linux-amd64 compressed oops)
Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
--------------- T H R E A D ---------------
Current thread (0x00007fca0c08a800): JavaThread "Service Thread" daemon [_thread_new, id=29237, stack(0x0000000000000000,0x0000000000000000)]
Stack: [0x0000000000000000,0x0000000000000000], sp=0x00007fca10e34880, free space=137212737746k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x99eb8a]
V [libjvm.so+0x49721b]
V [libjvm.so+0x8237ca]
V [libjvm.so+0x823815]
V [libjvm.so+0x952614]
V [libjvm.so+0x958dd4]
V [libjvm.so+0x81f988]
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
=>0x00007fca0c08a800 JavaThread "Service Thread" daemon [_thread_new, id=29237, stack(0x0000000000000000,0x0000000000000000)]
0x00007fca0c088000 JavaThread "C2 CompilerThread1" daemon [_thread_blocked, id=29236, stack(0x00007fca10e36000,0x00007fca10f37000)]
0x00007fca0c085800 JavaThread "C2 CompilerThread0" daemon [_thread_blocked, id=29235, stack(0x00007fca10f37000,0x00007fca11038000)]
0x00007fca0c084000 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=29234, stack(0x00007fca11038000,0x00007fca11139000)]
0x00007fca0c064800 JavaThread "Finalizer" daemon [_thread_blocked, id=29233, stack(0x00007fca11139000,0x00007fca1123a000)]
0x00007fca0c062800 JavaThread "Reference Handler" daemon [_thread_blocked, id=29232, stack(0x00007fca1123a000,0x00007fca1133b000)]
0x00007fca0c008800 JavaThread "main" [_thread_in_vm, id=29230, stack(0x00007fca12195000,0x00007fca12296000)]
Other Threads:
0x00007fca0c05e000 VMThread [stack: 0x00007fca1133b000,0x00007fca1143c000] [id=29231]
VM state:not at safepoint (normal execution)
VM Mutex/Monitor currently owned by a thread: ([mutex/lock_event])
[0x00007fca0c006bc0] PeriodicTask_lock - owner thread: 0x00007fca0c008800
Heap
def new generation total 4800K, used 343K [0x00000000eb400000, 0x00000000eb930000, 0x00000000f0750000)
eden space 4288K, 8% used [0x00000000eb400000, 0x00000000eb455e40, 0x00000000eb830000)
from space 512K, 0% used [0x00000000eb830000, 0x00000000eb830000, 0x00000000eb8b0000)
to space 512K, 0% used [0x00000000eb8b0000, 0x00000000eb8b0000, 0x00000000eb930000)
tenured generation total 10624K, used 0K [0x00000000f0750000, 0x00000000f11b0000, 0x00000000fae00000)
the space 10624K, 0% used [0x00000000f0750000, 0x00000000f0750000, 0x00000000f0750200, 0x00000000f11b0000)
compacting perm gen total 21248K, used 2132K [0x00000000fae00000, 0x00000000fc2c0000, 0x0000000100000000)
the space 21248K, 10% used [0x00000000fae00000, 0x00000000fb015148, 0x00000000fb015200, 0x00000000fc2c0000)
No shared spaces configured.
Card table byte_map: [0x00007fca117bd000,0x00007fca11864000] byte_map_base: 0x00007fca11063000
Polling page: 0x00007fca1332b000
Code Cache [0x00007fca09000000, 0x00007fca09270000, 0x00007fca0c000000)
total_blobs=156 nmethods=0 adapters=126 free_code_cache=48779Kb largest_free_block=49950080
Compilation events (0 events):
No events
GC Heap History (0 events):
No events
Deoptimization events (0 events):
No events
Internal exceptions (1 events):
Event: 0.027 Thread 0x00007fca0c008800 Threw 0x00000000eb410380 at /HUDSON/workspace/7u-2-build-linux-amd64/jdk7u67/1368/hotspot/src/share/vm/prims/jni.cpp:3991
Events (10 events):
Event: 0.058 loading class 0x00007fca11701880
Event: 0.058 loading class 0x00007fca11701880 done
Event: 0.058 loading class 0x00007fca1170df80
Event: 0.058 loading class 0x00007fca1170df80 done
Event: 0.058 loading class 0x00007fca116c8ee0
Event: 0.058 loading class 0x00007fca116c8ee0 done
Event: 0.058 Thread 0x00007fca0c084000 Thread added: 0x00007fca0c084000
Event: 0.058 Thread 0x00007fca0c085800 Thread added: 0x00007fca0c085800
Event: 0.059 Thread 0x00007fca0c088000 Thread added: 0x00007fca0c088000
Event: 0.059 Thread 0x00007fca0c08a800 Thread added: 0x00007fca0c08a800
.....
