java.lang.OutOfMemoryError：ChunkPool :: allocate请求32756字节。在交换空间之外？

Question

我正在使用通过WebLogic 10.3部署在HP服务器上的Java应用程序。

版本信息：

WebLogic Version 10.3 
OS Version B.11.23 

$ java -version 
java version "1.6.0.03" 
Java(TM) SE Runtime Environment (build 1.6.0.03-jinteg_05_feb_2009_11_19-b00) 
Java HotSpot(TM) Server VM (build 11.0-b16-jre1.6.0.03-rc2, mixed mode) 

我得到这个java.lang.OutOfMemoryError和WebLogic管理服务器已关闭。它总是在编译器线程上。该错误消息说检查交换和MAXDSIZ。我看了两个，他们似乎很好（见下文）。我已经通过论坛，看了很多东西，但似乎没有完全适用。我已经改变了堆和堆栈上下都没有运气。另外，我确信这是惠普应用程序的第一个1.6端口。

# kctune -a -v -q maxdsiz 
Tunable maxdsiz 
Description Maximum size of the data segment of a 32-bit process (bytes) 
Module vm 
Current Value 3221225472 
Value at Next Boot 3221225472 
Value at Last Boot 3221225472 
Default Value 1073741824 
Constraints maxdsiz GT 262144 
maxdsiz LT 4294963200 
Can Change Immediately or at Next Boot 






# swapinfo -tam 
Mb Mb Mb PCT START/ Mb 
TYPE AVAIL USED FREE USED LIMIT RESERVE PRI NAME 
dev 4096 261 3835 6% 0 - 1 /dev/vg00/lvol2 
dev 4096 263 3833 6% 0 - 1 /dev/vg00/lvol9 
reserve - 1195 -1195 
memory 4085 1598 2487 39% 
total 12277 3317 8960 27% - 0 - 

我得到一个核心和一个hs.log文件。这个问题似乎相似，但不是决议的父亲。

JVM errors after updating to Java 6 Update 14

我张贴的日志文件。没有一个堆空间显示接近100％。我不习惯看这些，希望有人能帮助我指导一个解决方案。我看到物理内存变低，但不是100％。

# 
# An unexpected error has been detected by Java Runtime Environment: 
# 
# java.lang.OutOfMemoryError: requested 32756 bytes for ChunkPool::allocate. Out of swap space? 
Possible causes: 
- not enough swap space left, or 
- kernel parameter MAXDSIZ is very small. 
# 
# Internal Error (allocation.cpp:128), pid=11593, tid=9 
# Error: ChunkPool::allocate 
# 
# Java VM: Java HotSpot(TM) Server VM (11.0-b16-jre1.6.0.03-rc2 mixed mode hp-ux-ia64) 
# Please report this error to HP customer support. 
# 

T H R E A D 
Current thread (0059e400): JavaThread "CompilerThread0" daemon [_thread_in_native, id=9, lwp_id=3000034, stack(21e01000,22001 
000)] 

Stack: 21e01000,22001000 

Current CompileTask: 
C3:154% ! weblogic.timers.internal.TimerThread$Thread.run()V @ 0 (196 bytes) 

P R O C E S S 
Java Threads: (current thread) 
01156000 JavaThread "STANDBY ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_blocke 
d, id=58, lwp_id=3000185, stack(1fa01000,1fa41000)] 
04fa1c00 JavaThread "STANDBY ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_blocke 
d, id=57, lwp_id=3000183, stack(1fac1000,1fb01000)] 
04bb1600 JavaThread "ACTIVE ExecuteThread: '2' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_blocked 
, id=56, lwp_id=3000182, stack(1fb81000,1fbc1000)] 
04f81200 JavaThread "DynamicSSLListenThreadDefaultSecure" daemon [_thread_in_native, id=55, lwp_id=3000181, stack(1fc41000 
,1fc81000)] 
043d6e00 JavaThread "DynamicListenThreadDefault" daemon [_thread_in_native, id=54, lwp_id=3000180, stack(1fd01000,1fd41000 
)] 
043d3400 JavaThread "weblogic.GCMonitor" daemon _thread_blocked, id=53, lwp_id=3000178, stack(1fdc1000,1fe01000) 
03167a00 JavaThread "Thread-14" daemon _thread_in_native, id=52, lwp_id=3000177, stack(1fe81000,1fec1000) 
03e5a600 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=51, lwp_id=3000155, stack(1ff41000,1ff81000) 
03e56e00 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=50, lwp_id=3000154, stack(20001000,20041000) 

03e45000 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=49, lwp_id=3000153, stack(200c1000,20101000) 
03e2e200 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=48, lwp_id=3000152, stack(20181000,201c1000) 
03e29000 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=47, lwp_id=3000151, stack(20241000,20281000) 
03e27a00 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=46, lwp_id=3000150, stack(20301000,20341000) 
03e15a00 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=45, lwp_id=3000149, stack(203c1000,20401000) 
0073de00 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=44, lwp_id=3000148, stack(20481000,204c1000) 
0073da00 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=43, lwp_id=3000147, stack(20c01000,20c41000) 
0073d600 JavaThread "RecyclableThread - waiting" daemon _thread_blocked, id=42, lwp_id=3000146, stack(20cc1000,20d01000) 
03e11800 JavaThread "SimpleQuartzScheduler_QuartzSchedulerThread" [_thread_blocked, id=41, lwp_id=3000139, stack(20541000,20 
581000)] 
03e0f400 JavaThread "ThreadPoolManager" daemon _thread_blocked, id=39, lwp_id=3000137, stack(206c1000,20701000) 
03e0d000 JavaThread "DataCacheManager" daemon _thread_blocked, id=38, lwp_id=3000136, stack(20781000,207c1000) 
03e0b400 JavaThread "TriggerManager" daemon _thread_blocked, id=37, lwp_id=3000135, stack(20841000,20881000) 
03e09c00 JavaThread "RequestEventManager" daemon _thread_blocked, id=36, lwp_id=3000134, stack(20901000,20941000) 
034b9200 JavaThread "HyperServiceCacheManager" daemon _thread_blocked, id=35, lwp_id=3000133, stack(209c1000,20a01000) 
034b7800 JavaThread "LogManager" daemon _thread_blocked, id=34, lwp_id=3000132, stack(20a81000,20ac1000) 
034b7400 JavaThread "ServiceTaskManager" daemon _thread_blocked, id=33, lwp_id=3000131, stack(21141000,21181000) 
0073e800 JavaThread "NXAHSProcessMgr::MasterThread" daemon _thread_blocked, id=32, lwp_id=3000130, stack(20b41000,20b81000) 
03ae6800 JavaThread "EventBroker" daemon _thread_blocked, id=29, lwp_id=3000102, stack(20d81000,20dc1000) 
03aaec00 JavaThread "I/O Monitor" daemon _thread_blocked, id=28, lwp_id=3000101, stack(20e41000,20e81000) 
033bf600 JavaThread "Timer-2" daemon _thread_blocked, id=27, lwp_id=3000100, stack(20f01000,20f41000) 
0312be00 JavaThread "Thread-11" daemon _thread_blocked, id=26, lwp_id=3000057, stack(20fc1000,21001000) 
0079cc00 JavaThread "DoSManager" daemon _thread_blocked, id=25, lwp_id=3000056, stack(21081000,210c1000) 
030ca400 JavaThread "VDE Transaction Processor Thread" daemon [_thread_blocked, id=23, lwp_id=3000054, stack(21201000,212410 
00)] 
03185c00 JavaThread "ExecuteThread: '2' for queue: 'weblogic.socket.Muxer'" daemon [_thread_blocked, id=22, lwp_id=3000053, 
stack(212c1000,21301000)] 
0312d200 JavaThread "ExecuteThread: '1' for queue: 'weblogic.socket.Muxer'" daemon [_thread_blocked, id=21, lwp_id=3000052, 
stack(21381000,213c1000)] 
030cba00 JavaThread "ExecuteThread: '0' for queue: 'weblogic.socket.Muxer'" daemon [_thread_in_native, id=20, lwp_id=3000051 
, stack(21881000,218c1000)] 
00a1c800 JavaThread "ACTIVE ExecuteThread: '1' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_blocked 
, id=19, lwp_id=3000050, stack(21941000,21981000)] 
030ab600 JavaThread "Thread-7" daemon _thread_blocked, id=18, lwp_id=3000049, stack(21a01000,21a41000) 
00689600 JavaThread "weblogic.timers.TimerThread" daemon _thread_blocked, id=17, lwp_id=3000048, stack(21ac1000,21b01000) 
00683e00 JavaThread "weblogic.time.TimeEventGenerator" daemon [_thread_blocked, id=16, lwp_id=3000047, stack(21b81000,21bc10 
00)] 
00677800 JavaThread "ACTIVE ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon [_thread_blocked 
, id=15, lwp_id=3000046, stack(22081000,220c1000)] 
00677000 JavaThread "Timer-1" daemon _thread_blocked, id=14, lwp_id=3000045, stack(22281000,222c1000) 
02094e00 JavaThread "Timer-0" daemon _thread_blocked, id=13, lwp_id=3000038, stack(22481000,224c1000) 
005a9e00 JavaThread "Low Memory Detector" daemon _thread_blocked, id=12, lwp_id=3000037, stack(22681000,226c1000) 
005a1400 JavaThread "CompilerThread1" daemon _thread_blocked, id=10, lwp_id=3000035, stack(21601000,21801000) 
=>0059e400 JavaThread "CompilerThread0" daemon _thread_in_native, id=9, lwp_id=3000034, stack(21e01000,22001000) 
0059c200 JavaThread "Signal Dispatcher" daemon _thread_blocked, id=8, lwp_id=3000033, stack(22881000,228c1000) 
0057cc00 JavaThread "Finalizer" daemon _thread_blocked, id=7, lwp_id=3000032, stack(231c1000,23201000) 
00535600 JavaThread "Reference Handler" daemon _thread_blocked, id=6, lwp_id=3000031, stack(23281000,232c1000) 
00465800 JavaThread "main" _thread_blocked, id=1, lwp_id=-1, stack(7fdfe000,7ffff000) 

Other Threads: 
0051aa00 VMThread stack: 22381000,22401000 id=5, lwp_id=3000030 
0048a800 WatcherThread stack: 22181000,22201000 id=11, lwp_id=3000036 

VM state: not at safepoint (normal execution) 

VM Mutex/Monitor currently owned by a thread: None 

Heap 
PSYoungGen total 308544K, used 132524K [5deb0000, 72790000, 73400000) 
eden space 307328K, 43% used [5deb0000,6601b248,70ad0000) 
from space 1216K, 0% used [72660000,72660000,72790000) 
to space 13888K, 0% used [70c70000,70c70000,71a00000) 
PSOldGen total 174784K, used 90916K [33400000, 3deb0000, 5deb0000) 
object space 174784K, 52% used [33400000,38cc9350,3deb0000) 
PSPermGen total 226304K, used 113097K [23400000, 31100000, 33400000) 
object space 226304K, 49% used [23400000,2a272528,31100000) 

Dynamic libraries: 
/opt/java1.6/jre/bin/IA64N/java 
text:0x00400000-0x0041b040 data:0x0041c000-0x0041c4f8 
/usr/lib/hpux32/libpthread.so.1 
text:0xc008d000-0xc011fcb0 data:0x777f2000-0x777f4508 
/opt/java1.6/jre/bin/IA64N/../../lib/IA64N/jli/libjli.so 
text:0xc1794000-0xc17b15e0 data:0x777f0000-0x777f1498 
/usr/lib/hpux32/libdl.so.1 
text:0xc1953000-0xc1956ed0 data:0x777ed000-0x777ed150 
/usr/lib/hpux32/libc.so.1 
text:0xc0120000-0xc039e300 data:0x777d9000-0x777ea0f8 
/opt/java1.6/jre/lib/IA64N/server/libjvm.so 
text:0xcb8f6000-0xcd783450 data:0x775ae000-0x777bace8 
/usr/lib/hpux32/libm.so.1 
text:0xc052f000-0xc0691c30 data:0x777cc000-0x777cf818 
/usr/lib/hpux32/librt.so.1 
text:0xc4ebd000-0xc4ec31f0 data:0x777d4000-0x777d41a8 
/usr/lib/hpux32/libuca.so.1 

text:0xc0c1c000-0xc0c23af0 data:0x777c9000-0x777c9150 
/usr/lib/hpux32/libelf.so.1 
text:0xc17b2000-0xc17d9fe0 data:0x777c8000-0x777c88c8 
/usr/lib/hpux32/libunwind.so.1 
text:0xc0bd3000-0xc0c1b910 data:0x777c7000-0x777c7628 
/usr/lib/hpux32/libstd_v2.so.1 
text:0xc09e2000-0xc0b82fc0 data:0x775a0000-0x775adc28 
/usr/lib/hpux32/libCsup.so.1 
text:0xc0b83000-0xc0bd2190 data:0x7759a000-0x7759ff20 
/opt/java1.6/jre/lib/IA64N/native_threads/libhpi.so 
text:0xc17da000-0xc17f0a60 data:0x777bc000-0x777bd6a0 
/opt/java1.6/jre/lib/IA64N/libverify.so 
text:0xc1957000-0xc1976b20 data:0x777bb000-0x777bbaf0 
/opt/java1.6/jre/lib/IA64N/libjava.so 
text:0xcb79e000-0xcb801070 data:0x77591000-0x77593208 
/opt/java1.6/jre/lib/IA64N/libzip.so 
text:0xc1977000-0xc19ab810 data:0x7758d000-0x7758e800 
/opt/java1.6/jre/lib/IA64N/libmanagement.so 
text:0xc19b4000-0xc19befa0 data:0x7758a000-0x7758a300 
/opt/java1.6/jre/lib/IA64N/libnet.so 
text:0xcd784000-0xcd7b2b30 data:0x77589000-0x77589908 
/usr/lib/hpux32/libnss_files.so.1 
text:0xc0518000-0xc052ea70 data:0x77586000-0x775868e0 
/opt/java1.6/jre/lib/IA64N/libnio.so 
text:0xc17f9000-0xc1808160 data:0x77585000-0x77585588 
/d1/app/bea/wlserver_10.3/server/native/hpux11/IPF32/libwlfileio2.so 
text:0xc18ab000-0xc18afb50 data:0x77582000-0x77582218 
/d1/app/bea/wlserver_10.3/server/native/hpux11/IPF32/libmuxer.so 
text:0xc5f0e000-0xc5f14f10 data:0x77581000-0x775818a0 
/usr/lib/hpux32/libnss_nisplus.so.1 
text:0xc7756000-0xc776fb40 data:0x7753e000-0x7753f580 
/usr/lib/hpux32/libsec.so.1 
text:0xc04d5000-0xc0517f50 data:0x7751c000-0x77526db0 
/usr/lib/hpux32/libnsl.so.1 
text:0xc03b2000-0xc04a5410 data:0x7752c000-0x77539da0 
/usr/lib/hpux32/libxti.so.1 
text:0xc04a6000-0xc04d4230 data:0x77529000-0x7752b420 
/usr/lib/hpux32/libnss_dns.so.1 
text:0xc0ceb000-0xc0cf8f00 data:0x7751b000-0x7751b370 

VM Arguments: 
jvm_args: -Xms256m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=256m -Dbea.home=/d1/app/bea -Dweblogic.RootDirectory=/d1/app/bea/user_projects/domains/dev1 -Dweblogic.Name=server1 -Dweblogic.ListenAddress=myserver -Dweblogic.ListenPort=7003 -Dweblogic.management.server=t3://myserver:7001 -Dweblogic.system.BootIdentityFile=/d1/app/bea/user_projects/domains/dev1/servers/server1/security/boot.properties -Djavax.xml.soap.MessageFactory=weblogic.xml.saaj.MessageFactoryImpl -Dcom.sun.xml.namespace.QName.useCompatibleSerialVersionUID=1.0 -Djava.endorsed.dirs=/d1/home/wls/greencm/myapplication/core-4.0.0/blueEndorsed -Djava.awt.headless=true -Djava.security.auth.login.config=/d1/home/wls/greencm/myapplication/jaas.config -Djava.security.policy=/d1/app/bea/wlserver_10.3/server/lib/weblogic.policy 

java_command: weblogic.Server 
Launcher Type: SUN_STANDARD 

Environment Variables: 
JAVA_HOME=/opt/java1.6 
CLASSPATH=/d1/app/bea/patch_wls1030/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/d1/app/bea/patch_cie660/profiles/default/sys_manifest_classpath/weblogic_patch.jar:/opt/java1.6/lib/tools.jar:/d1/app/bea/wlserver_10.3/server/lib/weblogic_sp.jar:/d1/app/bea/wlserver_10.3/server/lib/weblogic.jar:/d1/app/bea/modules/features/weblogic.server.modules_10.3.0.0.jar:/d1/app/bea/wlserver_10.3/server/lib/webservices.jar:/d1/app/bea/modules/org.apache.ant_1.6.5/lib/ant-all.jar:/d1/app/bea/modules/net.sf.antcontrib_1.0.0.0_1-0b2/lib/ant-contrib.jar: 
PATH=/d1/app/bea/wlserver_10.3/server/bin:/d1/app/bea/modules/org.apache.ant_1.6.5/bin:/opt/java1.6/jre/bin:/opt/java1.6/bin:/opt/java1.6/bin:/usr/bin:/usr/local/bin:/usr/bin:/usr/sbin:. 
LD_LIBRARY_PATH=/opt/java1.6/jre/lib/IA64N:/opt/java1.6/jre/lib/IA64N/server:/opt/java1.6/jre/../lib/IA64N:/opt/java1.6/jre/lib/IA64N:/opt/java1.6/jre/lib/IA64N/server:/opt/java1.6/jre/../lib/IA64N 
SHELL=/usr/bin/sh 
SHLIB_PATH=:/d1/app/bea/wlserver_10.3/server/native/hpux11/IPF32:/d1/app/bea/wlserver_10.3/server/native/hpux11/IPF32/oci920_8 
PTHREAD_COMPAT_MODE=0 

Signal Handlers: 
SIGSEGV: htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000051 
SIGBUS : htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000051 
SIGFPE : htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000050 
SIGPIPE: htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000050 
SIGXFSZ: htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000050 
SIGILL : htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000051 
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000004 
SIGUSR2: htp://libjvm.so+0xffed4dd8, sa_mask[0]=0x00000000, sa_flags=0x00000000 
SIGHUP : SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000004 
SIGINT : SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000004 
SIGQUIT: htp://libjvm.so+0xffed1ee8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000040 
SIGTERM: htp://libjvm.so+0xffed1ee8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000040 
SIGRTMIN: htp://libjvm.so+0xffed4fa8, sa_mask[0]=0x00000000, sa_flags=0x00000010 
SIGRTMIN+1: htp://libjvm.so+0xffed64a8, sa_mask[0]=0xbf7ffeff, sa_flags=0x00000050 

S Y S T E M 
OS:HP-UX 
uname:HP-UX B.11.23 U ia64 
rlimit: STACK 131072k, CORE 2097151k, NOFILE 4096, AS infinity 
load average:0.45 0.14 0.06 

CPU:total 2 

Memory: 4k page, physical 4182800k(11892k free) 

vm_info: Java HotSpot(TM) Server VM (11.0-b16-jre1.6.0.03-rc2) for hp-ux-ia64 JRE (1.6.0), built on Feb 6 2009 04:02:16 by "jinteg" with aCC 

time: Tue Dec 1 01:33:12 2009 
elapsed time: 9486 seconds 

This is what is in /var/adm/syslog: 

Nov 30 01:36:04 myserver syslog: Java out of memory messages are marked with pid:5031 in /var/adm/syslog/syslog.log. 
Nov 30 01:36:04 myserver syslog: pid: 5031 4Kb 4Kb 4Kb PCT START/ 4Kb 
DEV NO./ 
Nov 30 01:36:04 myserver syslog: pid: 5031 TYPE AVAIL USED FREE USED LIMIT RESERVE 

PRI FILE NAME 
Nov 30 01:36:04 myserver syslog: pid: 5031 dev 1048576 169912 878664 16.20% 0 - 
1 64 (major) 2 (minor) 
Nov 30 01:36:04 myserver syslog: pid: 5031 reserve - 579015 -579015 
Nov 30 01:36:04 myserver syslog: pid: 5031 memory 1045700 411902 633798 39.39% 

抱歉有任何奇怪的格式和感谢。

Answer 1

Google变成了一堆对此的反应。我开始阅读first one，虽然它的结论（减少堆）是合理的，但它并没有真正谈论根本原因。所以...

这是来自本地代码，并指出代码无法从C堆分配内存。有几个原因可能会发生，其中之一是虚拟内存空间是真正使用的操作系统，另一个是C堆碎片化。如果惠普有pmap，这是第一个开始的地方（或者找到它的等价物并从那里开始）。如果您看到分配块填充虚拟内存空间在一个完整的块中，那么解决方案很简单：减少你的堆。但是，如果您看到分散块遍布整个虚拟内存空间，则需要进行更深入的挖掘。有时候会发生这种情况，因为您拥有不回收原生资源的Java对象。有时候是因为操作系统的怪癖而发生的（我看到Solaris与线程堆栈混淆）。

Answer 2

THIS ANSWER is INCORRECT - 请参阅评论！

我正在离开答案，以便人们可以看到讨论。

---

So you're running out of memory. Compiling a JSP is a memory hog, so it's not too surprising that your container chose that point to blow up.

There are a few things that can be done to explore the problem, but I usually try the simplest remedy first: I give the program more memory.

This:

VM Arguments: jvm_args: -Xms256m -Xmx1024m -XX:PermSize=128m -XX:MaxPermSize=256m

indicates you are running with a pretty "standard" memory configuration. I would try increasing some of those numbers.

There's a (shell or .bat) script to start up WebLogic; I've forgotten its name or structure. But if you dig around in it, you will find Java being called with a set of options that are defined further up. You can shut down your server, back up this script file and edit it to fiddle the memory settings (-Xms, etc) and see where that gets you when you restart.

Answer 3

更新这为未来的搜索。解决方案是升级JDK。

回顾一下，这是由于随机的OOM JVM崩溃导致的。每HP：

http://docs.hp.com/en/JDKJRE60RN/jdk_rnotes_6.0.05.html

在JDK 6.0.03，偶尔，Java程序可以体验在C堆内存泄漏是由于QXCR1000920722，导致内存外的一个错误。惠普建议您从JDK 6.0升级。03转换为JDK 6.0.04（或更高版本）以防止由于QXCR1000920722而导致可能的C堆内存泄漏。

谢谢大家。

Answer 4

我刚刚遇到这个问题，显然可能来自多个原因：本机堆（C堆）耗尽，操作系统物理/虚拟内存耗尽，C堆/本机内存泄漏。

我发现在了解这个问题下面文章有用： http://javaeesupportpatterns.blogspot.sg/2012/03/outofmemoryerror-out-of-swap-space.html