JVM虛擬機(jī)性能監(jiān)控與故障處理工具介紹

更新時(shí)間：2023年07月23日 11:28:33 作者：zero

這篇文章主要為大家介紹了JVM虛擬機(jī)性能監(jiān)控與故障處理工具介紹，有需要的朋友可以借鑒參考下，希望能夠有所幫助，祝大家多多進(jìn)步，早日升職加薪

引言

定位線上問題時(shí)，知識(shí)和經(jīng)驗(yàn)是關(guān)鍵基礎(chǔ)，數(shù)據(jù)是依據(jù)，數(shù)據(jù)包括運(yùn)行日志，異常堆棧，GC日志，線程快照(threaddump/javacore文件)，堆轉(zhuǎn)儲(chǔ)快照(headdump/hprof文件)等

JDK監(jiān)控和故障處理工具

命令	作用
jps	顯示指定系統(tǒng)內(nèi)所有HotSpot虛擬機(jī)進(jìn)程
jstat	收集HotSpot虛擬機(jī)各方面運(yùn)行數(shù)據(jù)
jinfo	顯示虛擬機(jī)配置信息
jmap	生成虛擬機(jī)的內(nèi)部轉(zhuǎn)儲(chǔ)快照(heapdump文件)
jhat	分析heapdump文件
jstack	顯示虛擬機(jī)線程快照

jps：虛擬機(jī)進(jìn)程狀況工具

顯示指定系統(tǒng)內(nèi)所有HotSpot虛擬機(jī)進(jìn)程

常用選項(xiàng)

選項(xiàng)	作用
-q	只輸出LVMID
-m	輸出虛擬機(jī)啟動(dòng)時(shí)傳遞給主類main函數(shù)的參數(shù)
-l	輸出主類全名
-v	顯示虛擬機(jī)啟動(dòng)時(shí)的JVM參數(shù)

[oracle@wcdev ~]$ jps
20560 Server
24748 Rcu
17387 Server
14824 Jps
20635 Server
27844 Server
10658 Server
5713 Server
10738 Server
6594 NodeManager
10705 Server
29681 Server
[oracle@wcdev ~]$

jstat：虛擬機(jī)統(tǒng)計(jì)信息監(jiān)視工具

收集HotSpot虛擬機(jī)各方面運(yùn)行數(shù)據(jù)

常用選項(xiàng)

選項(xiàng)	作用
-class	監(jiān)視類裝載，卸載數(shù)量，總空間以及類裝載所耗費(fèi)的時(shí)間
-gc	監(jiān)視JAVA堆狀況，包括Eden區(qū)，兩個(gè)survivor區(qū)，老年代，永久代等

查詢進(jìn)程20560的信息，1000毫秒一次，執(zhí)行10次

[oracle@wcdev ~]$ jstat -gc 20560 1000 10
HeapSize NurserySize UsedHeapSize   YC     OC    YCTime   OCTime   GCTime  YCPauseTime OCPauseTime PauseTime
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
4194304.0   1528649.8    1132960.1   2735    501  309.990  173.831  483.821     310.056     173.843   483.899
[oracle@wcdev ~]$

jinfo：JAVA配置信息工具

jinfo可以查看和調(diào)整虛擬機(jī)各項(xiàng)參數(shù)，使用 jinfo 可以在不重啟虛擬機(jī)的情況下，可以動(dòng)態(tài)的修改 jvm 的參數(shù)

常用選項(xiàng)

選項(xiàng)	作用
-flag	輸出對(duì)應(yīng)名稱的參數(shù)
-flag [+/-]name	開啟或者關(guān)閉對(duì)應(yīng)名稱的參數(shù)

jinfo pid

C:\Users\zero&gt;jps -l
12080 com.example.offer.leecode.t20201015.CanJump
16112 sun.tools.jps.Jps
6292 org.jetbrains.idea.maven.server.RemoteMavenServer36
12940 org.jetbrains.kotlin.daemon.KotlinCompileDaemon
16284 org.jetbrains.jps.cmdline.Launcher
17388

C:\Users\zero&gt;jinfo 12080
Attaching to process ID 12080, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.102-b14
Java System Properties:

java.runtime.name = Java(TM) SE Runtime Environment
java.vm.version = 25.102-b14
sun.boot.library.path = C:\Program Files\Java\Java1.8.1\jre\bin
java.vendor.url = http://java.oracle.com/
java.vm.vendor = Oracle Corporation
path.separator = ;
file.encoding.pkg = sun.io
java.vm.name = Java HotSpot(TM) 64-Bit Server VM
sun.os.patch.level =
sun.java.launcher = SUN_STANDARD
user.script =
user.country = CN
user.dir = F:\GitCode\zero\TestExcel
java.vm.specification.name = Java Virtual Machine Specification
java.runtime.version = 1.8.0_102-b14
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
os.arch = amd64
java.endorsed.dirs = C:\Program Files\Java\Java1.8.1\jre\lib\endorsed
line.separator =

java.io.tmpdir = C:\Users\zero\AppData\Local\Temp\
java.vm.specification.vendor = Oracle Corporation
user.variant =
os.name = Windows 10
sun.jnu.encoding = GBK
java.library.path = C:\Program Files\Java\Java1.8.1\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;F:\oracleExe\app\oracle\product\11.2.0\server\bin;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Java\Java1.8.1\bin;C:\Program Files\TortoiseSVN\bin;F:\APP;F:\Git\Git\cmd;C:\Program Files\Redis\;F:\NvmFolder\nvm;F:\NvmFolder\nodejs;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;F:\Microsoft VS Code\Microsoft VS Code\bin;F:\Idea\IntelliJ IDEA 2017.1.1\plugins\maven\lib\maven3\bin;C:\Program Files\gradle\gradle-4.6\bin;F:\NvmFolder\nvm;F:\NvmFolder\nodejs;C:\Users\zero\AppData\Local\BypassRuntm;F:\NvmFolder\nvm;F:\NvmFolder\nodejs;F:\JetBrains\IntelliJ IDEA 2019.2.1\plugins\maven\lib\maven3\bin;.
java.specification.name = Java Platform API Specification
java.class.version = 52.0
sun.management.compiler = HotSpot 64-Bit Tiered Compilers
os.version = 10.0
user.home = C:\Users\zero
user.timezone = Asia/Shanghai
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = UTF-8
java.specification.version = 1.8
user.name = zero
java.class.path = C:\Program Files\Java\Java1.8.1\jre\lib\charsets.jar;C:\Program Files\Java\Java1.8.1\jre\lib\deploy.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\dnsns.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\jaccess.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\localedata.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\nashorn.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\sunec.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\Java1.8.1\jre\lib\ext\zipfs.jar;C:\Program Files\Java\Java1.8.1\jre\lib\javaws.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jce.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jfr.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jfxswt.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jsse.jar;C:\Program Files\Java\Java1.8.1\jre\lib\management-agent.jar;C:\Program Files\Java\Java1.8.1\jre\lib\plugin.jar;C:\Program Files\Java\Java1.8.1\jre\lib\resources.jar;C:\Program Files\Java\Java1.8.1\jre\lib\rt.jar;F:\Jclasslib\jclasslib\jclasslib\bin\jclasslib.jar;F:\GitCode\zero\TestExcel\target\classes;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter-web\2.2.6.RELEASE\spring-boot-starter-web-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter\2.2.6.RELEASE\spring-boot-starter-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot\2.2.6.RELEASE\spring-boot-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-autoconfigure\2.2.6.RELEASE\spring-boot-autoconfigure-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter-logging\2.2.6.RELEASE\spring-boot-starter-logging-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;F:\workSpace\Maven\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;F:\workSpace\Maven\repository\org\slf4j\slf4j-api\1.7.30\slf4j-api-1.7.30.jar;F:\workSpace\Maven\repository\org\apache\logging\log4j\log4j-to-slf4j\2.12.1\log4j-to-slf4j-2.12.1.jar;F:\workSpace\Maven\repository\org\apache\logging\log4j\log4j-api\2.12.1\log4j-api-2.12.1.jar;F:\workSpace\Maven\repository\org\slf4j\jul-to-slf4j\1.7.30\jul-to-slf4j-1.7.30.jar;F:\workSpace\Maven\repository\jakarta\annotation\jakarta.annotation-api\1.3.5\jakarta.annotation-api-1.3.5.jar;F:\workSpace\Maven\repository\org\springframework\spring-core\5.2.5.RELEASE\spring-core-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-jcl\5.2.5.RELEASE\spring-jcl-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\yaml\snakeyaml\1.25\snakeyaml-1.25.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter-json\2.2.6.RELEASE\spring-boot-starter-json-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\core\jackson-databind\2.10.3\jackson-databind-2.10.3.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\core\jackson-annotations\2.10.3\jackson-annotations-2.10.3.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\core\jackson-core\2.10.3\jackson-core-2.10.3.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.10.3\jackson-datatype-jdk8-2.10.3.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.10.3\jackson-datatype-jsr310-2.10.3.jar;F:\workSpace\Maven\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.10.3\jackson-module-parameter-names-2.10.3.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter-tomcat\2.2.6.RELEASE\spring-boot-starter-tomcat-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.33\tomcat-embed-core-9.0.33.jar;F:\workSpace\Maven\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.33\tomcat-embed-el-9.0.33.jar;F:\workSpace\Maven\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.33\tomcat-embed-websocket-9.0.33.jar;F:\workSpace\Maven\repository\org\springframework\boot\spring-boot-starter-validation\2.2.6.RELEASE\spring-boot-starter-validation-2.2.6.RELEASE.jar;F:\workSpace\Maven\repository\jakarta\validation\jakarta.validation-api\2.0.2\jakarta.validation-api-2.0.2.jar;F:\workSpace\Maven\repository\org\hibernate\validator\hibernate-validator\6.0.18.Final\hibernate-validator-6.0.18.Final.jar;F:\workSpace\Maven\repository\org\jboss\logging\jboss-logging\3.4.1.Final\jboss-logging-3.4.1.Final.jar;F:\workSpace\Maven\repository\com\fasterxml\classmate\1.5.1\classmate-1.5.1.jar;F:\workSpace\Maven\repository\org\springframework\spring-web\5.2.5.RELEASE\spring-web-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-beans\5.2.5.RELEASE\spring-beans-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-webmvc\5.2.5.RELEASE\spring-webmvc-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-aop\5.2.5.RELEASE\spring-aop-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-context\5.2.5.RELEASE\spring-context-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\springframework\spring-expression\5.2.5.RELEASE\spring-expression-5.2.5.RELEASE.jar;F:\workSpace\Maven\repository\org\apache\poi\poi-ooxml\3.10-FINAL\poi-ooxml-3.10-FINAL.jar;F:\workSpace\Maven\repository\org\apache\poi\poi\3.10-FINAL\poi-3.10-FINAL.jar;F:\workSpace\Maven\repository\commons-codec\commons-codec\1.13\commons-codec-1.13.jar;F:\workSpace\Maven\repository\dom4j\dom4j\1.6.1\dom4j-1.6.1.jar;F:\workSpace\Maven\repository\xml-apis\xml-apis\1.0.b2\xml-apis-1.0.b2.jar;F:\workSpace\Maven\repository\org\apache\poi\poi-ooxml-schemas\3.10-FINAL\poi-ooxml-schemas-3.10-FINAL.jar;F:\workSpace\Maven\repository\org\apache\xmlbeans\xmlbeans\2.3.0\xmlbeans-2.3.0.jar;F:\workSpace\Maven\repository\stax\stax-api\1.0.1\stax-api-1.0.1.jar;F:\workSpace\Maven\repository\com\alibaba\fastjson\1.2.53\fastjson-1.2.53.jar;F:\workSpace\Maven\repository\com\rabbitmq\amqp-client\3.4.1\amqp-client-3.4.1.jar;F:\workSpace\Maven\repository\org\json\json\20140107\json-20140107.jar;F:\workSpace\Maven\repository\junit\junit\4.12\junit-4.12.jar;F:\workSpace\Maven\repository\org\hamcrest\hamcrest-core\2.1\hamcrest-core-2.1.jar;F:\workSpace\Maven\repository\org\hamcrest\hamcrest\2.1\hamcrest-2.1.jar;F:\workSpace\Maven\repository\io\netty\netty-all\4.1.20.Final\netty-all-4.1.20.Final.jar;F:\workSpace\Maven\repository\org\msgpack\msgpack\0.6.12\msgpack-0.6.12.jar;F:\workSpace\Maven\repository\com\googlecode\json-simple\json-simple\1.1.1\json-simple-1.1.1.jar;F:\workSpace\Maven\repository\org\javassist\javassist\3.18.1-GA\javassist-3.18.1-GA.jar;F:\JetBrains\IntelliJ IDEA 2019.2.1\lib\idea_rt.jar
java.vm.specification.version = 1.8
sun.arch.data.model = 64
sun.java.command = com.example.offer.leecode.t20201015.CanJump
java.home = C:\Program Files\Java\Java1.8.1\jre
user.language = zh
java.specification.vendor = Oracle Corporation
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode
java.version = 1.8.0_102
java.ext.dirs = C:\Program Files\Java\Java1.8.1\jre\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\Java1.8.1\jre\lib\resources.jar;C:\Program Files\Java\Java1.8.1\jre\lib\rt.jar;C:\Program Files\Java\Java1.8.1\jre\lib\sunrsasign.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jsse.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jce.jar;C:\Program Files\Java\Java1.8.1\jre\lib\charsets.jar;C:\Program Files\Java\Java1.8.1\jre\lib\jfr.jar;C:\Program Files\Java\Java1.8.1\jre\classes
java.vendor = Oracle Corporation
file.separator = \
java.vendor.url.bug = http://bugreport.sun.com/bugreport/
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
sun.desktop = windows
sun.cpu.isalist = amd64

VM Flags:
Non-default VM flags: -XX:CICompilerCount=4 -XX:InitialHeapSize=268435456 -XX:MaxHeapSize=4273995776 -XX:MaxNewSize=1424490496 -XX:MinHeapDeltaBytes=524288 -XX:NewSize=89128960 -XX:OldSize=179306496 -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseFastUnorderedTimeStamps -XX:-UseLargePagesIndividualAllocation -XX:+UseParallelGC
Command line:  -javaagent:F:\JetBrains\IntelliJ IDEA 2019.2.1\lib\idea_rt.jar=55312:F:\JetBrains\IntelliJ IDEA 2019.2.1\bin -Dfile.encoding=UTF-8


C:\Users\zero&gt;

jinfo -flag name pid

查看指定JVM參數(shù)的值

C:\Users\zero&gt;jinfo -flag InitialHeapSize 6880
-XX:InitialHeapSize=268435456

jinfo -flag [+|-]name pid

動(dòng)態(tài)修改JVM參數(shù)的值

C:\Users\zero&gt;jinfo -flag +PrintGC 8932

C:\Users\zero&gt;jinfo -flag PrintGC 8932
-XX:+PrintGC

C:\Users\zero&gt;jinfo -flag -PrintGC 8932

C:\Users\zero&gt;jinfo -flag PrintGC 8932
-XX:-PrintGC

C:\Users\zero&gt;

jmap：JAVA內(nèi)存映像工具

jmap用于生成堆轉(zhuǎn)儲(chǔ)快照(heapdump或dump文件)

生成dump文件的方法，設(shè)置虛擬機(jī)參數(shù)，讓虛擬機(jī)在OOM異常后自動(dòng)生成dump文件，或者kill -3 dip，或者使用jmap獲取，但是使用jmap命令會(huì)造成服務(wù)器停用，影響可能會(huì)很嚴(yán)重

#出現(xiàn) OOME 時(shí)生成堆 dump: 
-XX:+HeapDumpOnOutOfMemoryError
#生成堆文件地址：
-XX:HeapDumpPath=/home/liuke/jvmlogs/

常用選項(xiàng)

選項(xiàng)	作用
-dump	生成JAVA堆轉(zhuǎn)儲(chǔ)快照
-heap	顯示JAVA堆詳細(xì)信息

使用jmap生成dump文件

C:\Users\zero&gt;jmap -dump:format=b,file=work 5892
Dumping heap to C:\Users\zero\work ...
Heap dump file created

危險(xiǎn)操作

最主要的危險(xiǎn)操作是下面這三種：

jmap -dump
這個(gè)命令執(zhí)行，JVM會(huì)將整個(gè)heap的信息dump寫入到一個(gè)文件，heap如果比較大的話，就會(huì)導(dǎo)致這個(gè)過程比較耗時(shí)，并且執(zhí)行的過程中為了保證dump的信息是可靠的，所以會(huì)暫停應(yīng)用。
jmap -permstat
這個(gè)命令執(zhí)行，JVM會(huì)去統(tǒng)計(jì)perm區(qū)的狀況，這整個(gè)過程也會(huì)比較的耗時(shí)，并且同樣也會(huì)暫停應(yīng)用。
jmap -histo:live
這個(gè)命令執(zhí)行，JVM會(huì)先觸發(fā)gc，然后再統(tǒng)計(jì)信息。

jstack：JAVA堆棧跟蹤工具

jstack命令用于生成虛擬機(jī)當(dāng)前時(shí)刻的線程快照(threaddump或者javacore文件)

常用選項(xiàng)

選項(xiàng)	作用
-l	除堆棧外，顯示有關(guān)鎖的附加信息
-m	調(diào)用本地方法的話，可以顯示C/C++的堆棧

使用jstack查看線程堆棧

C:\Users\zero>jstack 14024
2020-10-21 22:06:55
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode):
"Service Thread" #11 daemon prio=9 os_prio=0 tid=0x000000001f982800 nid=0x3c2c runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"C1 CompilerThread3" #10 daemon prio=9 os_prio=2 tid=0x000000001f0e9800 nid=0x604 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"C2 CompilerThread2" #9 daemon prio=9 os_prio=2 tid=0x000000001f0e4800 nid=0x3b24 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"C2 CompilerThread1" #8 daemon prio=9 os_prio=2 tid=0x000000001f0e4000 nid=0x32fc waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"C2 CompilerThread0" #7 daemon prio=9 os_prio=2 tid=0x000000001f0dd000 nid=0x428 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"Monitor Ctrl-Break" #6 daemon prio=5 os_prio=0 tid=0x000000001f081000 nid=0x2c08 runnable [0x000000001f55e000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:170)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
        - locked <0x000000076b44f888> (a java.io.InputStreamReader)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.fill(BufferedReader.java:161)
        at java.io.BufferedReader.readLine(BufferedReader.java:324)
        - locked <0x000000076b44f888> (a java.io.InputStreamReader)
        at java.io.BufferedReader.readLine(BufferedReader.java:389)
        at com.intellij.rt.execution.application.AppMainV2$1.run(AppMainV2.java:64)
"Attach Listener" #5 daemon prio=5 os_prio=2 tid=0x000000001edf1800 nid=0x10c4 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"Signal Dispatcher" #4 daemon prio=9 os_prio=2 tid=0x000000001ed9d000 nid=0x1d14 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
"Finalizer" #3 daemon prio=8 os_prio=1 tid=0x000000001ed80800 nid=0x3c38 in Object.wait() [0x000000001f25f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x000000076b188e98> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
        - locked <0x000000076b188e98> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
"Reference Handler" #2 daemon prio=10 os_prio=2 tid=0x000000000340c000 nid=0x3500 in Object.wait() [0x000000001ed5f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x000000076b186b40> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:502)
        at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
        - locked <0x000000076b186b40> (a java.lang.ref.Reference$Lock)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
"main" #1 prio=5 os_prio=0 tid=0x0000000003314800 nid=0x3fa8 waiting on condition [0x000000000309f000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
        at java.lang.Thread.sleep(Native Method)
        at com.example.offer.leecode.t20201015.CanJump.main(CanJump.java:57)
"VM Thread" os_prio=2 tid=0x000000001ce69800 nid=0x1f18 runnable
"GC task thread#0 (ParallelGC)" os_prio=0 tid=0x000000000332a800 nid=0x2b64 runnable
"GC task thread#1 (ParallelGC)" os_prio=0 tid=0x000000000332c000 nid=0x514 runnable
"GC task thread#2 (ParallelGC)" os_prio=0 tid=0x000000000332e000 nid=0x19f8 runnable
"GC task thread#3 (ParallelGC)" os_prio=0 tid=0x0000000003330800 nid=0x2608 runnable
"GC task thread#4 (ParallelGC)" os_prio=0 tid=0x0000000003332800 nid=0x2c84 runnable
"GC task thread#5 (ParallelGC)" os_prio=0 tid=0x0000000003333800 nid=0x406c runnable
"GC task thread#6 (ParallelGC)" os_prio=0 tid=0x0000000003337000 nid=0x2c38 runnable
"GC task thread#7 (ParallelGC)" os_prio=0 tid=0x0000000003338000 nid=0x2c54 runnable
"VM Periodic Task Thread" os_prio=2 tid=0x000000001fa2c000 nid=0x21d4 waiting on condition
JNI global references: 33
C:\Users\zero>jstack -l 14024
2020-10-21 22:07:00
Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.102-b14 mixed mode):
"Service Thread" #11 daemon prio=9 os_prio=0 tid=0x000000001f982800 nid=0x3c2c runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"C1 CompilerThread3" #10 daemon prio=9 os_prio=2 tid=0x000000001f0e9800 nid=0x604 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"C2 CompilerThread2" #9 daemon prio=9 os_prio=2 tid=0x000000001f0e4800 nid=0x3b24 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"C2 CompilerThread1" #8 daemon prio=9 os_prio=2 tid=0x000000001f0e4000 nid=0x32fc waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"C2 CompilerThread0" #7 daemon prio=9 os_prio=2 tid=0x000000001f0dd000 nid=0x428 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"Monitor Ctrl-Break" #6 daemon prio=5 os_prio=0 tid=0x000000001f081000 nid=0x2c08 runnable [0x000000001f55e000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
        at java.net.SocketInputStream.read(SocketInputStream.java:170)
        at java.net.SocketInputStream.read(SocketInputStream.java:141)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
        - locked <0x000000076b44f888> (a java.io.InputStreamReader)
        at java.io.InputStreamReader.read(InputStreamReader.java:184)
        at java.io.BufferedReader.fill(BufferedReader.java:161)
        at java.io.BufferedReader.readLine(BufferedReader.java:324)
        - locked <0x000000076b44f888> (a java.io.InputStreamReader)
        at java.io.BufferedReader.readLine(BufferedReader.java:389)
        at com.intellij.rt.execution.application.AppMainV2$1.run(AppMainV2.java:64)
   Locked ownable synchronizers:
        - None
"Attach Listener" #5 daemon prio=5 os_prio=2 tid=0x000000001edf1800 nid=0x10c4 waiting on condition [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"Signal Dispatcher" #4 daemon prio=9 os_prio=2 tid=0x000000001ed9d000 nid=0x1d14 runnable [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   Locked ownable synchronizers:
        - None
"Finalizer" #3 daemon prio=8 os_prio=1 tid=0x000000001ed80800 nid=0x3c38 in Object.wait() [0x000000001f25f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x000000076b188e98> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)
        - locked <0x000000076b188e98> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)
   Locked ownable synchronizers:
        - None
"Reference Handler" #2 daemon prio=10 os_prio=2 tid=0x000000000340c000 nid=0x3500 in Object.wait() [0x000000001ed5f000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        - waiting on <0x000000076b186b40> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:502)
        at java.lang.ref.Reference.tryHandlePending(Reference.java:191)
        - locked <0x000000076b186b40> (a java.lang.ref.Reference$Lock)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
   Locked ownable synchronizers:
        - None
"main" #1 prio=5 os_prio=0 tid=0x0000000003314800 nid=0x3fa8 waiting on condition [0x000000000309f000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
        at java.lang.Thread.sleep(Native Method)
        at com.example.offer.leecode.t20201015.CanJump.main(CanJump.java:57)
   Locked ownable synchronizers:
        - None
"VM Thread" os_prio=2 tid=0x000000001ce69800 nid=0x1f18 runnable
"GC task thread#0 (ParallelGC)" os_prio=0 tid=0x000000000332a800 nid=0x2b64 runnable
"GC task thread#1 (ParallelGC)" os_prio=0 tid=0x000000000332c000 nid=0x514 runnable
"GC task thread#2 (ParallelGC)" os_prio=0 tid=0x000000000332e000 nid=0x19f8 runnable
"GC task thread#3 (ParallelGC)" os_prio=0 tid=0x0000000003330800 nid=0x2608 runnable
"GC task thread#4 (ParallelGC)" os_prio=0 tid=0x0000000003332800 nid=0x2c84 runnable
"GC task thread#5 (ParallelGC)" os_prio=0 tid=0x0000000003333800 nid=0x406c runnable
"GC task thread#6 (ParallelGC)" os_prio=0 tid=0x0000000003337000 nid=0x2c38 runnable
"GC task thread#7 (ParallelGC)" os_prio=0 tid=0x0000000003338000 nid=0x2c54 runnable
"VM Periodic Task Thread" os_prio=2 tid=0x000000001fa2c000 nid=0x21d4 waiting on condition
JNI global references: 33
C:\Users\zero>jstack -m 14024
Attaching to process ID 14024, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.102-b14
Deadlock Detection:
No deadlocks found.
----------------- 0 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
0xec8b485741564155              ????????
sun.jvm.hotspot.debugger.DebuggerException: Windbg Error: ReadVirtual failed!
        at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readBytesFromProcess0(Native Method)
        at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readBytesFromProcess(WindbgDebuggerLocal.java:490)
        at sun.jvm.hotspot.debugger.DebuggerBase$Fetcher.fetchPage(DebuggerBase.java:80)
        at sun.jvm.hotspot.debugger.PageCache.getPage(PageCache.java:178)
        at sun.jvm.hotspot.debugger.PageCache.getLong(PageCache.java:100)
        at sun.jvm.hotspot.debugger.DebuggerBase.readCInteger(DebuggerBase.java:364)
        at sun.jvm.hotspot.debugger.DebuggerBase.readAddressValue(DebuggerBase.java:462)
        at sun.jvm.hotspot.debugger.windbg.WindbgDebuggerLocal.readAddress(WindbgDebuggerLocal.java:316)
        at sun.jvm.hotspot.debugger.windbg.WindbgAddress.getAddressAt(WindbgAddress.java:72)
        at sun.jvm.hotspot.debugger.windows.amd64.WindowsAMD64CFrame.sender(WindowsAMD64CFrame.java:60)
        at sun.jvm.hotspot.tools.PStack.run(PStack.java:161)
        at sun.jvm.hotspot.tools.PStack.run(PStack.java:58)
        at sun.jvm.hotspot.tools.PStack.run(PStack.java:53)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:66)
        at sun.jvm.hotspot.tools.Tool.startInternal(Tool.java:260)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:223)
        at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:92)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at sun.tools.jstack.JStack.runJStackTool(JStack.java:140)
        at sun.tools.jstack.JStack.main(JStack.java:106)
----------------- 1 -----------------
----------------- 2 -----------------
----------------- 3 -----------------
0x00007ffb6fa55c24      ntdll!NtWaitForMultipleObjects + 0x14
----------------- 4 -----------------
----------------- 5 -----------------
----------------- 6 -----------------
----------------- 7 -----------------
----------------- 8 -----------------
----------------- 9 -----------------
----------------- 10 -----------------
----------------- 11 -----------------
----------------- 12 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 13 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 14 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 15 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 16 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 17 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 18 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 19 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 20 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 21 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14
----------------- 22 -----------------
----------------- 23 -----------------
0x00007ffb6fa55154      ntdll!ZwWaitForSingleObject + 0x14

以上就是JVM虛擬機(jī)性能監(jiān)控與故障處理工具介紹的詳細(xì)內(nèi)容，更多關(guān)于JVM 性能監(jiān)控故障處理工具的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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jinfo -flag name pid

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国产无遮挡裸体免费直播视频,久久精品国产蜜臀av,动漫在线视频一区二区,欧亚日韩一区二区三区,久艹在线 免费视频,国产精品美女网站免费,正在播放 97超级视频在线观看,斗破苍穹年番在线观看免费,51最新乱码中文字幕

JVM虛擬機(jī)性能監(jiān)控與故障處理工具介紹

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jps：虛擬機(jī)進(jìn)程狀況工具

jstat：虛擬機(jī)統(tǒng)計(jì)信息監(jiān)視工具

jinfo：JAVA配置信息工具

jinfo pid

jinfo -flag name pid

jinfo -flag [+|-]name pid

jmap：JAVA內(nèi)存映像工具

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jstack：JAVA堆棧跟蹤工具

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