我正在从虚拟 Linux 机器 (VPS) 运行一个 JAR(例如，一个 Talend 作业)。
我在运行 jar 时遇到连接超时异常。
我无法完全解释它，因为如果我在 Eclipse 中运行 JAR(例如在 Talend ESB Studio 中)，它可以正常工作。该 jar 正在执行一些 HTTP GET 调用，并使用 chrome 开发工具对其进行测量，它们从 10 秒到 40 秒不等。
在调查抛出此异常的原因时，我在 jar 目录中发现了一个名为 hs_err_pid6127.log 的文件，其中包含一些关于Java 运行时环境内存不足以继续运行的日志>.
这是我的问题:这两件事可以以某种方式联系起来吗？我如何知道 Java 运行时环境的实际内存？会不会是超时的原因？如果是，如何解决？
JAR 异常堆栈跟踪:
Exception in component tREST_2
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection timed out
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:131)
at com.sun.jersey.api.client.Client.handle(Client.java:616)
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:559)
at com.sun.jersey.api.client.WebResource.get(WebResource.java:182)
at jobtest.forwardjson_0_1.ForwardJSON.tREST_2Process(ForwardJSON.java:1770)
at jobtest.forwardjson_0_1.ForwardJSON.tFileInputRaw_2Process(ForwardJSON.java:1257)
at jobtest.forwardjson_0_1.ForwardJSON.tFileInputRaw_1Process(ForwardJSON.java:984)
at jobtest.forwardjson_0_1.ForwardJSON.tJava_2Process(ForwardJSON.java:713)
at jobtest.forwardjson_0_1.ForwardJSON.runJobInTOS(ForwardJSON.java:3400)
at jobtest.forwardjson_0_1.ForwardJSON.main(ForwardJSON.java:3127)
Caused by: java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:997)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:851)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler._invoke(URLConnectionClientHandler.java:218)
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:129)
... 9 more
内存不足错误日志文件内容:
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 179306496 bytes for committing reserved memory.
# 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.cpp:2756), pid=6127, tid=122490359273216
#
# JRE version: (7.0_80-b15) (build )
# Java VM: Java HotSpot(TM) 64-Bit Server VM (24.80-b11 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 (0x00006f677c00a000): JavaThread "Unknown thread" [_thread_in_vm, id=6128, stack(0x00006f67824a5000,0x00006f67825a6000)]
Stack: [0x00006f67824a5000,0x00006f67825a6000], sp=0x00006f67825a4270, free space=1020k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x9a320a] VMError::report_and_die()+0x2ea
V [libjvm.so+0x498d3b] report_vm_out_of_memory(char const*, int, unsigned long, char const*)+0x9b
V [libjvm.so+0x82191e] os::Linux::commit_memory_impl(char*, unsigned long, bool)+0xfe
V [libjvm.so+0x821e69] os::pd_commit_memory(char*, unsigned long, unsigned long, bool)+0x29
V [libjvm.so+0x81bb6a] os::commit_memory(char*, unsigned long, unsigned long, bool)+0x2a
V [libjvm.so+0x88d623] PSVirtualSpace::expand_by(unsigned long)+0x53
V [libjvm.so+0x87c293] PSOldGen::initialize(ReservedSpace, unsigned long, char const*, int)+0x103
V [libjvm.so+0x29ace3] AdjoiningGenerations::AdjoiningGenerations(ReservedSpace, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long)+0x3e3
V [libjvm.so+0x843215] ParallelScavengeHeap::initialize()+0x4d5
V [libjvm.so+0x97509a] Universe::initialize_heap()+0xca
V [libjvm.so+0x976269] universe_init()+0x79
V [libjvm.so+0x5b2f25] init_globals()+0x65
V [libjvm.so+0x95db4d] Threads::create_vm(JavaVMInitArgs*, bool*)+0x1ed
V [libjvm.so+0x63b2e4] JNI_CreateJavaVM+0x74
C [libjli.so+0x2f8e] JavaMain+0x9e
--------------- P R O C E S S ---------------
Java Threads: ( => current thread )
Other Threads:
=>0x00006f677c00a000 (exited) JavaThread "Unknown thread" [_thread_in_vm, id=6128, stack(0x00006f67824a5000,0x00006f67825a6000)]
VM state:not at safepoint (not fully initialized)
VM Mutex/Monitor currently owned by a thread: None
GC Heap History (0 events):
No events
Deoptimization events (0 events):
No events
Internal exceptions (0 events):
No events
Events (0 events):
No events
Dynamic libraries:
00400000-00401000 r-xp 00000000 08:01 661565 /usr/lib/jvm/java-7-oracle/jre/bin/java
00600000-00601000 rw-p 00000000 08:01 661565 /usr/lib/jvm/java-7-oracle/jre/bin/java
00601000-023d6000 ---p 00000000 00:00 0
023d6000-023f8000 rw-p 00000000 00:00 0 [heap]
6f67330d6000-6f6733254000 rw-p 00000000 00:00 0
6f6733254000-6f673327f000 rw-p 00000000 00:00 0
6f673327f000-6f67332ff000 rw-p 00000000 00:00 0
6f67332ff000-6f6733300000 rw-p 00000000 00:00 0
6f6733300000-6f6733380000 ---p 00000000 00:00 0
6f6733380000-6f6738580000 rw-p 00000000 00:00 0
6f6742f13000-6f6743080000 rw-p 00000000 00:00 0
6f6743080000-6f6763000000 rw-p 00000000 00:00 0
6f6763000000-6f6768580000 rw-p 00000000 00:00 0
6f6768580000-6f6778580000 rw-p 00000000 00:00 0
6f6768580000-6f6778580000 rw-p 00000000 00:00 0
6f6778598000-6f6778808000 rwxp 00000000 00:00 0
6f6778808000-6f677b598000 rw-p 00000000 00:00 0
6f677b598000-6f677b5af000 r-xp 00000000 08:01 661261 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libzip.so
6f677b5af000-6f677b7af000 ---p 00017000 08:01 661261 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libzip.so
6f677b7af000-6f677b7b0000 rw-p 00017000 08:01 661261 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libzip.so
6f677b7b0000-6f677b7bc000 r-xp 00000000 08:01 786478 /lib/x86_64-linux-gnu/libnss_files-2.21.so
6f677b7bc000-6f677b9bb000 ---p 0000c000 08:01 786478 /lib/x86_64-linux-gnu/libnss_files-2.21.so
6f677b9bb000-6f677b9bc000 r--p 0000b000 08:01 786478 /lib/x86_64-linux-gnu/libnss_files-2.21.so
6f677b9bc000-6f677b9bd000 rw-p 0000c000 08:01 786478 /lib/x86_64-linux-gnu/libnss_files-2.21.so
6f677b9c0000-6f677b9cb000 r-xp 00000000 08:01 786465 /lib/x86_64-linux-gnu/libnss_nis-2.21.so
6f677b9cb000-6f677bbca000 ---p 0000b000 08:01 786465 /lib/x86_64-linux-gnu/libnss_nis-2.21.so
6f677bbca000-6f677bbcb000 r--p 0000a000 08:01 786465 /lib/x86_64-linux-gnu/libnss_nis-2.21.so
6f677bbcb000-6f677bbcc000 rw-p 0000b000 08:01 786465 /lib/x86_64-linux-gnu/libnss_nis-2.21.so
6f677bbd0000-6f677bbe7000 r-xp 00000000 08:01 786484 /lib/x86_64-linux-gnu/libnsl-2.21.so
6f677bbe7000-6f677bde6000 ---p 00017000 08:01 786484 /lib/x86_64-linux-gnu/libnsl-2.21.so
6f677bde6000-6f677bde7000 r--p 00016000 08:01 786484 /lib/x86_64-linux-gnu/libnsl-2.21.so
6f677bde7000-6f677bde8000 rw-p 00017000 08:01 786484 /lib/x86_64-linux-gnu/libnsl-2.21.so
6f677bde8000-6f677bdea000 rw-p 00000000 00:00 0
6f677bdf0000-6f677bdf8000 r-xp 00000000 08:01 786480 /lib/x86_64-linux-gnu/libnss_compat-2.21.so
6f677bdf8000-6f677bff7000 ---p 00008000 08:01 786480 /lib/x86_64-linux-gnu/libnss_compat-2.21.so
6f677bff7000-6f677bff8000 r--p 00007000 08:01 786480 /lib/x86_64-linux-gnu/libnss_compat-2.21.so
6f677bff8000-6f677bff9000 rw-p 00008000 08:01 786480 /lib/x86_64-linux-gnu/libnss_compat-2.21.so
6f677c000000-6f677c026000 rw-p 00000000 00:00 0
6f677c026000-6f6780000000 ---p 00000000 00:00 0
6f67800fc000-6f67801d8000 rw-p 00000000 00:00 0
6f67801d8000-6f6780201000 r-xp 00000000 08:01 661227 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libjava.so
6f6780201000-6f6780401000 ---p 00029000 08:01 661227 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libjava.so
6f6780401000-6f6780403000 rw-p 00029000 08:01 661227 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libjava.so
6f6780408000-6f6780415000 r-xp 00000000 08:01 661254 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libverify.so
6f6780415000-6f6780614000 ---p 0000d000 08:01 661254 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libverify.so
6f6780614000-6f6780616000 rw-p 0000c000 08:01 661254 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/libverify.so
6f6780618000-6f678061f000 r-xp 00000000 08:01 786497 /lib/x86_64-linux-gnu/librt-2.21.so
6f678061f000-6f678081e000 ---p 00007000 08:01 786497 /lib/x86_64-linux-gnu/librt-2.21.so
6f678081e000-6f678081f000 r--p 00006000 08:01 786497 /lib/x86_64-linux-gnu/librt-2.21.so
6f678081f000-6f6780820000 rw-p 00007000 08:01 786497 /lib/x86_64-linux-gnu/librt-2.21.so
6f6780820000-6f6780927000 r-xp 00000000 08:01 786483 /lib/x86_64-linux-gnu/libm-2.21.so
6f6780927000-6f6780b26000 ---p 00107000 08:01 786483 /lib/x86_64-linux-gnu/libm-2.21.so
6f6780b26000-6f6780b27000 r--p 00106000 08:01 786483 /lib/x86_64-linux-gnu/libm-2.21.so
6f6780b27000-6f6780b28000 rw-p 00107000 08:01 786483 /lib/x86_64-linux-gnu/libm-2.21.so
6f6780b28000-6f678169e000 r-xp 00000000 08:01 661281 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/server/libjvm.so
6f678169e000-6f678189d000 ---p 00b76000 08:01 661281 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/server/libjvm.so
6f678189d000-6f6781961000 rw-p 00b75000 08:01 661281 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/server/libjvm.so
6f6781961000-6f67819a2000 rw-p 00000000 00:00 0
6f6781961000-6f67819a2000 rw-p 00000000 00:00 0
6f67819a8000-6f6781b68000 r-xp 00000000 08:01 786503 /lib/x86_64-linux-gnu/libc-2.21.so
6f6781b68000-6f6781d68000 ---p 001c0000 08:01 786503 /lib/x86_64-linux-gnu/libc-2.21.so
6f6781d68000-6f6781d6c000 r--p 001c0000 08:01 786503 /lib/x86_64-linux-gnu/libc-2.21.so
6f6781d6c000-6f6781d6e000 rw-p 001c4000 08:01 786503 /lib/x86_64-linux-gnu/libc-2.21.so
6f6781d6e000-6f6781d72000 rw-p 00000000 00:00 0
6f6781d78000-6f6781d7b000 r-xp 00000000 08:01 786471 /lib/x86_64-linux-gnu/libdl-2.21.so
6f6781d7b000-6f6781f7a000 ---p 00003000 08:01 786471 /lib/x86_64-linux-gnu/libdl-2.21.so
6f6781f7a000-6f6781f7b000 r--p 00002000 08:01 786471 /lib/x86_64-linux-gnu/libdl-2.21.so
6f6781f7b000-6f6781f7c000 rw-p 00003000 08:01 786471 /lib/x86_64-linux-gnu/libdl-2.21.so
6f6781f80000-6f6781f95000 r-xp 00000000 08:01 661273 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/jli/libjli.so
6f6781f95000-6f6782194000 ---p 00015000 08:01 661273 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/jli/libjli.so
6f6782194000-6f6782195000 rw-p 00014000 08:01 661273 /usr/lib/jvm/java-7-oracle/jre/lib/amd64/jli/libjli.so
6f6782198000-6f67821b0000 r-xp 00000000 08:01 786475 /lib/x86_64-linux-gnu/libpthread-2.21.so
6f67821b0000-6f67823b0000 ---p 00018000 08:01 786475 /lib/x86_64-linux-gnu/libpthread-2.21.so
6f67823b0000-6f67823b1000 r--p 00018000 08:01 786475 /lib/x86_64-linux-gnu/libpthread-2.21.so
6f67823b1000-6f67823b2000 rw-p 00019000 08:01 786475 /lib/x86_64-linux-gnu/libpthread-2.21.so
6f67823b2000-6f67823b6000 rw-p 00000000 00:00 0
6f67823b8000-6f67823dc000 r-xp 00000000 08:01 786474 /lib/x86_64-linux-gnu/ld-2.21.so
6f67823e5000-6f67823ef000 rw-p 00000000 00:00 0
6f67823ef000-6f67824a5000 rw-p 00000000 00:00 0
6f67824a5000-6f67824a8000 ---p 00000000 00:00 0
6f67824a8000-6f67825a6000 rw-p 00000000 00:00 0 [stack:6128]
6f67825c0000-6f67825c8000 rw-s 00000000 08:01 1311123 /tmp/hsperfdata_root/6127
6f67825ce000-6f67825d0000 rw-p 00000000 00:00 0
6f67825d4000-6f67825d7000 rw-p 00000000 00:00 0
6f67825d7000-6f67825d8000 r--p 00000000 00:00 0
6f67825d8000-6f67825db000 rw-p 00000000 00:00 0
6f67825db000-6f67825dc000 r--p 00023000 08:01 786474 /lib/x86_64-linux-gnu/ld-2.21.so
6f67825dc000-6f67825dd000 rw-p 00024000 08:01 786474 /lib/x86_64-linux-gnu/ld-2.21.so
6f67825dd000-6f67825df000 rw-p 00000000 00:00 0
6f67825df000-6f67825e1000 r-xp 00000000 00:00 0 [vdso]
715d736a8000-715d736ca000 rw-p 00000000 00:00 0 [stack]
ffffffffff600000-ffffffffff601000 r--p 00000000 00:00 0 [vsyscall]
VM Arguments:
jvm_args: -Xms256M -Xmx1024M
java_command: talendjobtest.forwardjson_0_1.ForwardJSON --context=Default
Launcher Type: SUN_STANDARD
Environment Variables:
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
SHELL=/bin/sh
Signal Handlers:
SIGSEGV: [libjvm.so+0x9a3b20], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGBUS: [libjvm.so+0x9a3b20], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGFPE: [libjvm.so+0x81e740], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGPIPE: [libjvm.so+0x81e740], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGXFSZ: [libjvm.so+0x81e740], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGILL: [libjvm.so+0x81e740], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: [libjvm.so+0x81ffb0], sa_mask[0]=0x00000000, sa_flags=0x10000004
SIGHUP: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGINT: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGTERM: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGQUIT: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
--------------- S Y S T E M ---------------
OS:jessie/sid
uname:Linux 3.14.32-xxxx-grs-ipv6-64-vps #1 SMP Sat Feb 7 11:39:32 CET 2015 x86_64
libc:glibc 2.21 NPTL 2.21
rlimit: STACK 8192k, CORE 0k, NPROC 7963, NOFILE 65536, AS infinity
load average:0.13 0.04 0.05
/proc/meminfo:
MemTotal: 2039816 kB
MemFree: 84776 kB
MemAvailable: 150456 kB
Buffers: 31448 kB
Cached: 45968 kB
SwapCached: 8360 kB
Active: 1345272 kB
Inactive: 463056 kB
Active(anon): 1296372 kB
Inactive(anon): 438476 kB
Active(file): 48900 kB
Inactive(file): 24580 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 2099196 kB
SwapFree: 9020 kB
Dirty: 384 kB
Writeback: 0 kB
AnonPages: 1722672 kB
Mapped: 23088 kB
Shmem: 3916 kB
Slab: 38616 kB
SReclaimable: 12896 kB
SUnreclaim: 25720 kB
KernelStack: 11776 kB
PageTables: 28396 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 3119104 kB
Committed_AS: 14661200 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 289572 kB
VmallocChunk: 34359346732 kB
HardwareCorrupted: 0 kB
DirectMap4k: 10176 kB
DirectMap2M: 2086912 kB
DirectMap1G: 0 kB
CPU:total 2 (1 cores per cpu, 1 threads per core) family 21 model 0 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3, sse4.1, sse4.2, popcnt, avx, aes, mmxext, 3dnowpref, lzcnt, sse4a, tsc, tscinvbit, tscinv
/proc/cpuinfo:
processor : 0
vendor_id : AuthenticAMD
cpu family : 21
model : 0
model name : AMD Opteron(tm) Processor 6386 SE
stepping : 2
microcode : 0x6000822
cpu MHz : 2799.999
cache size : 2048 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : AuthenticAMD
cpu family : 21
model : 0
model name : AMD Opteron(tm) Processor 6386 SE
stepping : 2
microcode : 0x6000822
cpu MHz : 2799.999
cache size : 2048 KB
physical id : 2
siblings : 1
core id : 0
cpu cores : 1
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl tsc_reliable nonstop_tsc aperfmperf pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes xsave avx hypervisor lahf_lm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw xop fma4 arat vmmcall
bogomips : 5599.99
TLB size : 1536 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management:
Memory: 4k page, physical 2039816k(84776k free), swap 2099196k(9020k free)
vm_info: Java HotSpot(TM) 64-Bit Server VM (24.80-b11) for linux-amd64 JRE (1.7.0_80-b15), built on Apr 10 2015 19:53:14 by "java_re" with gcc 4.3.0 20080428 (Red Hat 4.3.0-8)
time: Fri Aug 21 12:55:01 2015
elapsed time: 0 seconds
Linux 版本:
# uname -a
Linux vps177513.ovh.net 3.14.32-xxxx-grs-ipv6-64-vps #1 SMP Sat Feb 7 11:39:32 CET 2015 x86_64 x86_64 x86_64 GNU/Linux
编辑——一些更有趣的事实:
# free -m
total used free shared buffers cached
Mem: 1992 1898 93 4 36 42
-/+ buffers/cache: 1819 172
Swap: 2049 2046 3
为了回应我通过这个脚本运行 JAR 的评论:
#!/bin/sh
cd `dirname $0`
ROOT_PATH=`pwd`
java -Xms256M -Xmx1024M -cp $ROOT_PATH:$ROOT_PATH/../lib/systemRoutines.jar:$ROOT_PATH/../lib/userRoutines.jar::.:$ROOT_PATH/forwardjson_0_1.ja r:$ROOT_PATH/../lib/camel-core-2.13.2.jar:$ROOT_PATH/../lib/commons-io-2.4.jar:$ROOT_PATH/../lib/cxf-api-2.7.12.jar:$ROOT_PATH/../lib/cxf-rt-bin dings-xml-2.7.12.jar:$ROOT_PATH/../lib/cxf-rt-core-2.7.12.jar:$ROOT_PATH/../lib/cxf-rt-frontend-jaxrs-2.7.12.jar:$ROOT_PATH/../lib/cxf-rt-rs-ext ension-providers-2.7.12.jar:$ROOT_PATH/../lib/cxf-rt-transports-http-2.7.12.jar:$ROOT_PATH/../lib/dom4j-1.6.1.jar:$ROOT_PATH/../lib/javax.ws.rs- api-2.0-m10.jar:$ROOT_PATH/../lib/jersey-client-1.4.jar:$ROOT_PATH/../lib/jersey-core-1.4.jar:$ROOT_PATH/../lib/jettison-1.3.5.jar:$ROOT_PATH/.. /lib/log4j-1.2.15.jar:$ROOT_PATH/../lib/mail.jar:$ROOT_PATH/../lib/slf4j-api-1.7.7.jar:$ROOT_PATH/../lib/slf4j-log4j12-1.7.7.jar:$ROOT_PATH/../l ib/stax-api-1.0.1.jar:$ROOT_PATH/../lib/stax2-api-3.1.4.jar:$ROOT_PATH/../lib/woodstox-core-asl-4.4.0.jar:$ROOT_PATH/../lib/wsdl4j-1.6.3.jar:$RO OT_PATH/../lib/xmlschema-core-2.1.0.jar: talendjobtest.forwardjson_0_1.ForwardJSON --context=Default "$@" root@vps177513:~/talend/ForwardJSON #
最佳答案
您需要一个分析器来查看随着时间的推移消耗内存的内容。除非你在某处发生泄漏，否则我不明白无状态 Web 服务将如何继续消耗内存。可以是永久代；可能是别的东西。措施;不要猜测。
32 位 JVM 不允许分配超过 2GB 的内存堆大小。
关于java - VPS、Java、连接超时和内存不足，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32145464/