JVM问题排查

1、获取java进程

ps -ef|grep java

2、查看进程中,线程使用的CPU

top -H -p 2128

[root@alipayap01_test bin]# top -H -p2128
top - 08:49:52 up 170 days, 23:04,  6 users,  load average: 0.06, 0.09, 0.09
Tasks:  21 total,   0 running,  21 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.6%us,  0.3%sy,  2.2%ni, 93.8%id,  2.9%wa,  0.0%hi,  0.2%si,  0.0%st
Mem:   8174464k total,  8096600k used,    77864k free,   472244k buffers
Swap: 16777208k total,   122952k used, 16654256k free,   510808k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                              
 2128 root      18   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 java                                                                                                                  
 2129 root      19   0 5648m 1.1g 3896 S  0.0 14.2   0:11.52 java                                                                                                                  
 2130 root      18   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 (Signal Handler                                                                                                       
 2131 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:08.72 (OC Main Thread                                                                                                       
 2132 root      16   0 5648m 1.1g 3896 S  0.0 14.2   2:10.21 (GC Worker Thre                                                                                                       
 2133 root      16   0 5648m 1.1g 3896 S  0.0 14.2   2:10.42 (GC Worker Thre                                                                                                       
 2134 root      16   0 5648m 1.1g 3896 S  0.0 14.2   2:10.52 (GC Worker Thre                                                                                                       
 2135 root      16   0 5648m 1.1g 3896 S  0.0 14.2   2:10.43 (GC Worker Thre                                                                                                       
 2136 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:00.02 (Code Generatio                                                                                                       
 2137 root      16   0 5648m 1.1g 3896 S  0.0 14.2   1:06.06 (Code Optimizat                                                                                                       
 2138 root      19   4 5648m 1.1g 3896 S  0.0 14.2  48:17.84 (VM Periodic Ta                                                                                                       
 2139 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 Finalizer                                                                                                             
 2140 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 Reference Handl                                                                                                       
 2141 root      23   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 (Sensor Event T                                                                                                       
 2142 root      24   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 VM JFR Buffer T                                                                                                       
 2284 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:00.03 pp-online-serve                                                                                                       
 2285 root      19   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 pp-online-admin                                                                                                       
 2286 root      20   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 Timer-0                                                                                                               
 2287 root      15   0 5648m 1.1g 3896 S  0.0 14.2 195:30.66 Timer-1                                                                                                               
 9366 root      15   0 5648m 1.1g 3896 S  0.0 14.2   0:00.03 Timer-2                                                                                                               
11842 root      16   0 5648m 1.1g 3896 S  0.0 14.2   0:00.00 (Attach Listene 

 

3、相信线程信息

./jrcmd 2128 print_threads

[root@alipayap01_test bin]# ./jrcmd 2128 print_threads  
2128:

===== FULL THREAD DUMP ===============
Mon Jun 19 08:49:31 2017
Oracle JRockit(R) R28.2.7-7-155314-1.6.0_45-20130329-0641-linux-x86_64

"(Signal Handler)" id=2 idx=0x8 tid=2130 prio=5 alive, native_blocked, daemon

"(OC Main Thread)" id=3 idx=0xc tid=2131 prio=5 alive, native_waiting, daemon

"(GC Worker Thread 1)" id=? idx=0x10 tid=2132 prio=5 alive, daemon

"(GC Worker Thread 2)" id=? idx=0x14 tid=2133 prio=5 alive, daemon

"(GC Worker Thread 3)" id=? idx=0x18 tid=2134 prio=5 alive, daemon

"(GC Worker Thread 4)" id=? idx=0x1c tid=2135 prio=5 alive, daemon

"(Code Generation Thread 1)" id=4 idx=0x20 tid=2136 prio=5 alive, native_waiting, daemon

"(Code Optimization Thread 1)" id=5 idx=0x24 tid=2137 prio=5 alive, native_waiting, daemon

"(VM Periodic Task)" id=6 idx=0x28 tid=2138 prio=10 alive, native_blocked, daemon

"Finalizer" id=7 idx=0x2c tid=2139 prio=8 alive, native_waiting, daemon
    at jrockit/memory/Finalizer.waitForFinalizees(J[Ljava/lang/Object;)I(Native Method)
    at jrockit/memory/Finalizer.access$700(Finalizer.java:12)
    at jrockit/memory/Finalizer$4.run(Finalizer.java:201)
    at java/lang/Thread.run(Thread.java:662)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"Reference Handler" id=8 idx=0x30 tid=2140 prio=10 alive, native_waiting, daemon
    at java/lang/ref/Reference.waitForActivatedQueue(J)Ljava/lang/ref/Reference;(Native Method)
    at java/lang/ref/Reference.access$100(Reference.java:11)
    at java/lang/ref/Reference$ReferenceHandler.run(Reference.java:82)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"(Sensor Event Thread)" id=9 idx=0x34 tid=2141 prio=5 alive, native_blocked, daemon

"VM JFR Buffer Thread" id=10 idx=0x38 tid=2142 prio=5 alive, in native, daemon

"pp-online-server(epayap:8200)-main" id=139 idx=0x238 tid=2284 prio=5 alive, in native
    at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
    at java/net/PlainSocketImpl.accept(PlainSocketImpl.java:408)
    ^-- Holding lock: java/net/SocksSocketImpl@0x100da9fb0[biased lock]
    at java/net/ServerSocket.implAccept(ServerSocket.java:462)
    at java/net/ServerSocket.accept(ServerSocket.java:430)
    at com/csii/pe/service/comm/tcp/TcpServer$1.run()V(Unknown Source)
    at java/lang/Thread.run(Thread.java:662)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"pp-online-adminserver(*:18001)-main" id=140 idx=0x23c tid=2285 prio=5 alive, in native
    at java/net/PlainSocketImpl.socketAccept(Ljava/net/SocketImpl;)V(Native Method)
    at java/net/PlainSocketImpl.accept(PlainSocketImpl.java:408)
    ^-- Holding lock: java/net/SocksSocketImpl@0x100d92fb8[biased lock]
    at java/net/ServerSocket.implAccept(ServerSocket.java:462)
    at java/net/ServerSocket.accept(ServerSocket.java:430)
    at com/csii/pe/service/comm/tcp/TcpServer$1.run()V(Unknown Source)
    at java/lang/Thread.run(Thread.java:662)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"Timer-0" id=141 idx=0x240 tid=2286 prio=5 alive, waiting, native_blocked
    -- Waiting for notification on: java/util/TaskQueue@0x100e51858[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)
    at java/util/TimerThread.mainLoop(Timer.java:509)
    ^-- Lock released while waiting: java/util/TaskQueue@0x100e51858[fat lock]
    at java/util/TimerThread.run(Timer.java:462)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"Timer-1" id=142 idx=0x244 tid=2287 prio=5 alive, waiting, native_blocked
    -- Waiting for notification on: java/util/TaskQueue@0x100e518d8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)
    at java/util/TimerThread.mainLoop(Timer.java:509)
    ^-- Lock released while waiting: java/util/TaskQueue@0x100e518d8[fat lock]
    at java/util/TimerThread.run(Timer.java:462)
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"attached" id=144 idx=0x248 tid=2129 prio=5 alive, native_waiting, daemon

"Timer-2" id=177 idx=0x2cc tid=9366 prio=5 alive, waiting, native_blocked, daemon
    -- Waiting for notification on: java/util/TaskQueue@0x100a0c8f8[fat lock]
    at jrockit/vm/Threads.waitForNotifySignal(JLjava/lang/Object;)Z(Native Method)
    at java/lang/Object.wait(J)V(Native Method)
    at java/util/TimerThread.mainLoop(Timer.java:509)[inlined]
    at java/util/TimerThread.run(Timer.java:462)[optimized]
    ^-- Lock released while waiting: java/util/TaskQueue@0x100a0c8f8[fat lock]
    at jrockit/vm/RNI.c2java(JJJJJ)V(Native Method)
    -- end of trace

"(Attach Listener)" id=223 idx=0x384 tid=11842 prio=5 alive, daemon

===== END OF THREAD DUMP ===============

./jrcmd 2128 help

[root@alipayap01_test bin]# ./jrcmd 2128 help
2128:
The following commands are available:
    kill_management_server
    start_management_server
    print_object_summary
    memleakserver
    print_class_summary
    print_codeblocks
    dump_codelayout
    dump_codelist
    dump_codemap
    print_codegenlist
    exception_trace_filter
    print_vm_state
    print_utf8pool
    check_flightrecording
    dump_flightrecording
    stop_flightrecording
    start_flightrecording
    print_properties
    hprofdump
    print_threads
    datadump_request
    runsystemgc
    runfinalization
    heap_diagnostics
    oom_diagnostics
    print_exceptions
    version
    timestamp
    command_line
    sanity
    verbosity
    set_filename
    help
    print_memusage
    set_vmflag
    list_vmflags

 ./jrcmd 2128 print_threads 或者 jstack 2128

4、trace追踪

追踪线程id=2284

strace -t -T -e trace=all -p 12203

[root@alipayap01_test bin]# strace -t -T -e trace=all -p 12203
Process 12203 attached - interrupt to quit
09:09:22 accept(185, {sa_family=AF_INET, sin_port=htons(58714), sin_addr=inet_addr("195.203.6.163")}, [6549641241670189072]) = 75 <13.636115>
09:09:35 futex(0x15b2d80c, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x15b2d808, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 <0.000014>
09:09:35 accept(185, {sa_family=AF_INET, sin_port=htons(58715), sin_addr=inet_addr("195.203.6.163")}, [6621698835708117008]) = 83 <0.034538>
09:09:35 futex(0x15b0705c, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x15b07058, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 <0.000032>
09:09:35 futex(0x15b07030, FUTEX_WAKE_PRIVATE, 1) = 1 <0.000024>
09:09:35 futex(0x2aab000052e0, FUTEX_WAIT_PRIVATE, 2, NULL) = -1 EAGAIN (Resource temporarily unavailable) <0.000021>
09:09:35 futex(0x2aab000052e0, FUTEX_WAKE_PRIVATE, 1) = 0 <0.000018>
09:09:35 accept(185, {sa_family=AF_INET, sin_port=htons(58718), sin_addr=inet_addr("195.203.6.163")}, [6837871617821900816]) = 75 <0.488808>
09:09:36 futex(0x15b522ac, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x15b522a8, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1 <0.000137>
09:09:36 accept(185,

 

-c 统计每一系统调用的所执行的时间,次数和出错的次数等. 
-d 输出strace关于标准错误的调试信息. 
-f 跟踪由fork调用所产生的子进程. 
-ff 如果提供-o filename,则所有进程的跟踪结果输出到相应的filename.pid中,pid是各进程的进程号. 
-F 尝试跟踪vfork调用.在-f时,vfork不被跟踪. 
-h 输出简要的帮助信息. 
-i 输出系统调用的入口指针. 
-q 禁止输出关于脱离的消息. 
-r 打印出相对时间关于,,每一个系统调用. 
-t 在输出中的每一行前加上时间信息. 
-tt 在输出中的每一行前加上时间信息,微秒级. 
-ttt 微秒级输出,以秒了表示时间. 
-T 显示每一调用所耗的时间. 
-v 输出所有的系统调用.一些调用关于环境变量,状态,输入输出等调用由于使用频繁,默认不输出. 
-V 输出strace的版本信息. 
-x 以十六进制形式输出非标准字符串 
-xx 所有字符串以十六进制形式输出. 
-a column 
设置返回值的输出位置.默认 为40. 
-e expr
指定一个表达式,用来控制如何跟踪.格式如下: 
[qualifier=][!]value1[,value2]... 
qualifier只能是 trace,abbrev,verbose,raw,signal,read,write其中之一.value是用来限定的符号或数字.默认的 qualifier是 trace.感叹号是否定符号.例如: 
-eopen等价于 -e trace=open,表示只跟踪open调用.而-etrace!=open表示跟踪除了open以外的其他调用.有两个特殊的符号 all 和 none. 
注意有些shell使用!来执行历史记录里的命令,所以要使用\\. 
-e trace=set
只跟踪指定的系统 调用.例如:-e trace=open,close,rean,write表示只跟踪这四个系统调用.默认的为set=all. 
-e trace=file
只跟踪有关文件操作的系统调用. 
-e trace=process 
只跟踪有关进程控制的系统调用. 
-e trace=network 
跟踪与网络有关的所有系统调用. 
-e strace=signal 
跟踪所有与系统信号有关的 系统调用 
-e trace=ipc 
跟踪所有与进程通讯有关的系统调用 
-e abbrev=set
设定 strace输出的系统调用的结果集.-v 等与 abbrev=none.默认为abbrev=all. 
-e raw=set
将指 定的系统调用的参数以十六进制显示. 
-e signal=set
指定跟踪的系统信号.默认为all.如 signal=!SIGIO(或者signal=!io),表示不跟踪SIGIO信号. 
-e read=set
输出从指定文件中读出 的数据.例如: 
-e read=3,5 
-e write=set
输出写入到指定文件中的数据. 
-o filename 
将strace的输出写入文件filename 
-p pid 
跟踪指定的进程pid. 
-s strsize 
指定输出的字符串的最大长度.默认为32.文件名一直全部输出. 
-u username 
以username 的UID和GID执行被跟踪的命令

  

strace -c >/dev/null ls   
堆中对象
jmap -histo 23048|more  

strace -t -T -e trace=all -p 23048 -f -s 1000 -o /tmp/asms1.log  

posted @ 2017-06-19 11:37  W&L  阅读(817)  评论(0编辑  收藏  举报