Tomcat7中打印stuck的线程

ゝ一世哀愁。 2023-06-15 04:56 18阅读 0赞

在中间件层面，一些非常慢的请求就是性能杀手，weblogic可以很容易的配置超过多少秒打印出线程来，也叫stuck的线程。长期整改这些问题对系统的稳定运行有极大的帮组。修改context.xml文件，加入 org.apache.catalina.valves.StuckThreadDetectionValve。  
做了一个实验，在一个Jsp页面for update一张表，不过之前在pl/sql developer中先把表锁住。  
`<?xml version='1.0' encoding='utf-8'?> <Context> <WatchedResource>WEB-INF/web.xml</WatchedResource> <Valve className="org.apache.catalina.valves.StuckThreadDetectionValve" threshold="5" /> </Context>`

十一月 20, 2019 11:32:51 上午 org.apache.catalina.valves.StuckThreadDetectionValve notifyStuckThread  
Detected  
警告: Thread “http-bio-8082-exec-1” (id=16) has been active for 12,354 milliseconds (since 11/20/19  
11:32 AM) to serve the same request for http://localhost:8082/ and may be stuck (configured threshol  
d for this StuckThreadDetectionValve is 5 seconds). There is/are 1 thread(s) in total that are monit  
ored by this Valve and may be stuck.  
java.lang.Throwable  
at java.net.SocketInputStream.socketRead0(Native Method)  
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)  
at java.net.SocketInputStream.read(SocketInputStream.java:171)  
at java.net.SocketInputStream.read(SocketInputStream.java:141)  
at oracle.net.ns.Packet.receive(Packet.java:300)  
at oracle.net.ns.DataPacket.receive(DataPacket.java:106)  
at oracle.net.ns.NetInputStream.getNextPacket(NetInputStream.java:315)  
at oracle.net.ns.NetInputStream.read(NetInputStream.java:260)  
at oracle.net.ns.NetInputStream.read(NetInputStream.java:185)  
at oracle.net.ns.NetInputStream.read(NetInputStream.java:102)  
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.readNextPacket(T4CSocketInputStreamWrapper  
.java:124)  
at oracle.jdbc.driver.T4CSocketInputStreamWrapper.read(T4CSocketInputStreamWrapper.java:80)  
at oracle.jdbc.driver.T4CMAREngine.unmarshalUB1(T4CMAREngine.java:1137)  
at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:290)  
at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:192)  
at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)  
at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:207)  
at oracle.jdbc.driver.T4CPreparedStatement.executeForDescribe(T4CPreparedStatement.java:884)

at oracle.jdbc.driver.OracleStatement.executeMaybeDescribe(OracleStatement.java:1167)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1289)
        at oracle.jdbc.driver.OracleStatement.executeInternal(OracleStatement.java:1909)
        at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:1871)
        at oracle.jdbc.driver.OracleStatementWrapper.execute(OracleStatementWrapper.java:318)
        at org.apache.jsp.index_jsp$TestUpdate.updateDB(index_jsp.java:36)
        at org.apache.jsp.index_jsp._jspService(index_jsp.java:141)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j

ava:303)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.j

ava:241)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
        at org.apache.catalina.valves.StuckThreadDetectionValve.invoke(StuckThreadDetectionValve.jav

a:220)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)  
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)  
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:111  
5)  
at org.apache.coyote.AbstractProtocol A b s t r a c t C o n n e c t i o n H a n d l e r . p r o c e s s ( A b s t r a c t P r o t o c o l . j a v a : 637 ) a t o r g . a p a c h e . t o m c a t . u t i l . n e t . J I o E n d p o i n t AbstractConnectionHandler.process(AbstractProtocol.jav a:637) at org.apache.tomcat.util.net.JIoEndpoint AbstractConnectionHandler.process(AbstractProtocol.java:637)atorg.apache.tomcat.util.net.JIoEndpointSocketProcessor.run(JIoEndpoint.java:316)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)  
at java.util.concurrent.ThreadPoolExecutor W o r k e r . r u n ( T h r e a d P o o l E x e c u t o r . j a v a : 624 ) a t o r g . a p a c h e . t o m c a t . u t i l . t h r e a d s . T a s k T h r e a d Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread Worker.run(ThreadPoolExecutor.java:624)atorg.apache.tomcat.util.threads.TaskThreadWrappingRunnable.run(TaskThread.java:61)  
at java.lang.Thread.run(Thread.java:748)

十一月 20, 2019 11:34:31 上午 org.apache.catalina.valves.StuckThreadDetectionValve notifyStuckThread  
Completed  
警告: Thread “http-bio-8082-exec-1” (id=16) was previously reported to be stuck but has completed. I  
t was active for approximately 104,021 milliseconds.