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Posted to dev@velocity.apache.org by "nhb (JIRA)" <de...@velocity.apache.org> on 2007/08/16 14:29:31 UTC
[jira] Updated: (VELOCITY-562) Hanging in jj_scan_token (while
holding lock for getResouce)
[ https://issues.apache.org/jira/browse/VELOCITY-562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
nhb updated VELOCITY-562:
-------------------------
Description:
We are having trouble with deadlocks in Velocity after updating from 1.3 to 1.5
The thread holding the lock allways it at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3259)
although the frames below that differ between restarts. It is not possible to use Eclipse to step over that line. It simply hangs.
3259 is this line: "if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;"
Here is an example stacktrace:
Full thread dump Java HotSpot(TM) Client VM (1.5.0_08-b03 mixed mode):
"DataExchange" daemon prio=1 tid=0x08b2df10 nid=0x2824 waiting for monitor entry [0x8545a000..0x8545b130]
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:287)
- waiting to lock <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1077)
at org.apache.velocity.runtime.RuntimeSingleton.getTemplate(RuntimeSingleton.java:303)
at org.apache.velocity.app.Velocity.getTemplate(Velocity.java:503)
at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:735)
[...]
"http-8080-Processor23" daemon prio=1 tid=0x08220cc8 nid=0x2803 runnable [0x858e2000..0x858e3db0]
at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3259)
at org.apache.velocity.runtime.parser.Parser.jj_3R_56(Parser.java:3089)
at org.apache.velocity.runtime.parser.Parser.jj_3R_29(Parser.java:2696)
at org.apache.velocity.runtime.parser.Parser.jj_3_8(Parser.java:2530)
at org.apache.velocity.runtime.parser.Parser.jj_3_7(Parser.java:2574)
at org.apache.velocity.runtime.parser.Parser.jj_2_7(Parser.java:2483)
at org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1240)
at org.apache.velocity.runtime.parser.Parser.PrimaryExpression(Parser.java:2391)
at org.apache.velocity.runtime.parser.Parser.UnaryExpression(Parser.java:2366)
at org.apache.velocity.runtime.parser.Parser.MultiplicativeExpression(Parser.java:2215)
at org.apache.velocity.runtime.parser.Parser.AdditiveExpression(Parser.java:2139)
at org.apache.velocity.runtime.parser.Parser.RelationalExpression(Parser.java:2007)
at org.apache.velocity.runtime.parser.Parser.EqualityExpression(Parser.java:1931)
at org.apache.velocity.runtime.parser.Parser.ConditionalAndExpression(Parser.java:1891)
at org.apache.velocity.runtime.parser.Parser.ConditionalOrExpression(Parser.java:1851)
at org.apache.velocity.runtime.parser.Parser.Expression(Parser.java:1798)
at org.apache.velocity.runtime.parser.Parser.SetDirective(Parser.java:1730)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:310)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.ElseStatement(Parser.java:1564)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1495)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.process(Parser.java:258)
at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1042)
at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:972)
at org.apache.velocity.Template.process(Template.java:120)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:415)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:335)
- locked <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:177)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.Template.merge(Template.java:254)
at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:736)
at de.his.servlet.util.ServletUtil.sendResponseWithVelocity(ServletUtil.java:684)
at de.his.servlet.HISServletModuleImpl.handleRequest(HISServletModuleImpl.java:637)
at de.his.servlet.RequestDispatcherServlet.invoke(RequestDispatcherServlet.java:908)
at de.his.servlet.RequestDispatcherServlet.handleRequest(RequestDispatcherServlet.java:843)
at de.his.servlet.RequestDispatcherServlet.doGet(RequestDispatcherServlet.java:1060)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
was:
After updating Velocity from 1.3 to 1.5 we are having massive performance issues. I am not talking about Velocity 1.5 beiing slower than 1.3 but about 100%CPU ussage for several minutes if two threads are parsing (different) tempaltes at the same time:
Getting the stacktraces is a bit difficult because the complete system is very unresponsive. Here is an example stacktrace but i don't know if it really shows the cause of the problems:
Full thread dump Java HotSpot(TM) Client VM (1.5.0_08-b03 mixed mode):
"DataExchange" daemon prio=1 tid=0x08b2df10 nid=0x2824 waiting for monitor entry [0x8545a000..0x8545b130]
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:287)
- waiting to lock <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1077)
at org.apache.velocity.runtime.RuntimeSingleton.getTemplate(RuntimeSingleton.java:303)
at org.apache.velocity.app.Velocity.getTemplate(Velocity.java:503)
at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:735)
at de.his.servlet.util.ServletUtil.getVelocityString(ServletUtil.java:753)
at de.his.xml.XSLTransformator.transform(XSLTransformator.java:163)
at de.his.xml.XSLTransformator.transform(XSLTransformator.java:110)
at de.his.xml.dbinterface.DBInterface.processRequest(DBInterface.java:431)
at de.his.xml.dbinterface.DatabaseAdapter.processDirect(DatabaseAdapter.java:370)
at de.his.xml.dbinterface.DatabaseAdapter.process(DatabaseAdapter.java:387)
at de.his.xml.dbinterface.DatabaseAdapter.readDatabase(DatabaseAdapter.java:336)
at de.his.xml.dbinterface.DatabaseAdapter.doDataExchange(DatabaseAdapter.java:680)
at de.his.xml.dbinterface.DataExchangeThread.run(DataExchangeThread.java:144)
at java.lang.Thread.run(Thread.java:595)
"http-8080-Processor23" daemon prio=1 tid=0x08220cc8 nid=0x2803 runnable [0x858e2000..0x858e3db0]
at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3259)
at org.apache.velocity.runtime.parser.Parser.jj_3R_56(Parser.java:3089)
at org.apache.velocity.runtime.parser.Parser.jj_3R_29(Parser.java:2696)
at org.apache.velocity.runtime.parser.Parser.jj_3_8(Parser.java:2530)
at org.apache.velocity.runtime.parser.Parser.jj_3_7(Parser.java:2574)
at org.apache.velocity.runtime.parser.Parser.jj_2_7(Parser.java:2483)
at org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1240)
at org.apache.velocity.runtime.parser.Parser.PrimaryExpression(Parser.java:2391)
at org.apache.velocity.runtime.parser.Parser.UnaryExpression(Parser.java:2366)
at org.apache.velocity.runtime.parser.Parser.MultiplicativeExpression(Parser.java:2215)
at org.apache.velocity.runtime.parser.Parser.AdditiveExpression(Parser.java:2139)
at org.apache.velocity.runtime.parser.Parser.RelationalExpression(Parser.java:2007)
at org.apache.velocity.runtime.parser.Parser.EqualityExpression(Parser.java:1931)
at org.apache.velocity.runtime.parser.Parser.ConditionalAndExpression(Parser.java:1891)
at org.apache.velocity.runtime.parser.Parser.ConditionalOrExpression(Parser.java:1851)
at org.apache.velocity.runtime.parser.Parser.Expression(Parser.java:1798)
at org.apache.velocity.runtime.parser.Parser.SetDirective(Parser.java:1730)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:310)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.ElseStatement(Parser.java:1564)
at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1495)
at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
at org.apache.velocity.runtime.parser.Parser.process(Parser.java:258)
at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1042)
at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:972)
at org.apache.velocity.Template.process(Template.java:120)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:415)
at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:335)
- locked <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:177)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at org.apache.velocity.Template.merge(Template.java:254)
at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:736)
at de.his.servlet.util.ServletUtil.sendResponseWithVelocity(ServletUtil.java:684)
at de.his.servlet.HISServletModuleImpl.handleRequest(HISServletModuleImpl.java:637)
at de.his.servlet.RequestDispatcherServlet.invoke(RequestDispatcherServlet.java:908)
at de.his.servlet.RequestDispatcherServlet.handleRequest(RequestDispatcherServlet.java:843)
at de.his.servlet.RequestDispatcherServlet.doGet(RequestDispatcherServlet.java:1060)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Environment:
Integreated in Tomcat on Ubuntu Linux
JDK version: 1.5.0_08-b03
was:Integreated in Tomcat on both MS Windows an Linux servers
Summary: Hanging in jj_scan_token (while holding lock for getResouce) (was: Massive Performance issues after upgrading from 1.3 to 1.5)
> Hanging in jj_scan_token (while holding lock for getResouce)
> ------------------------------------------------------------
>
> Key: VELOCITY-562
> URL: https://issues.apache.org/jira/browse/VELOCITY-562
> Project: Velocity
> Issue Type: Bug
> Affects Versions: 1.5
> Environment: Integreated in Tomcat on Ubuntu Linux
> JDK version: 1.5.0_08-b03
> Reporter: nhb
>
> We are having trouble with deadlocks in Velocity after updating from 1.3 to 1.5
> The thread holding the lock allways it at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3259)
> although the frames below that differ between restarts. It is not possible to use Eclipse to step over that line. It simply hangs.
> 3259 is this line: "if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;"
> Here is an example stacktrace:
> Full thread dump Java HotSpot(TM) Client VM (1.5.0_08-b03 mixed mode):
> "DataExchange" daemon prio=1 tid=0x08b2df10 nid=0x2824 waiting for monitor entry [0x8545a000..0x8545b130]
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:287)
> - waiting to lock <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1077)
> at org.apache.velocity.runtime.RuntimeSingleton.getTemplate(RuntimeSingleton.java:303)
> at org.apache.velocity.app.Velocity.getTemplate(Velocity.java:503)
> at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:735)
> [...]
> "http-8080-Processor23" daemon prio=1 tid=0x08220cc8 nid=0x2803 runnable [0x858e2000..0x858e3db0]
> at org.apache.velocity.runtime.parser.Parser.jj_scan_token(Parser.java:3259)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_56(Parser.java:3089)
> at org.apache.velocity.runtime.parser.Parser.jj_3R_29(Parser.java:2696)
> at org.apache.velocity.runtime.parser.Parser.jj_3_8(Parser.java:2530)
> at org.apache.velocity.runtime.parser.Parser.jj_3_7(Parser.java:2574)
> at org.apache.velocity.runtime.parser.Parser.jj_2_7(Parser.java:2483)
> at org.apache.velocity.runtime.parser.Parser.Reference(Parser.java:1240)
> at org.apache.velocity.runtime.parser.Parser.PrimaryExpression(Parser.java:2391)
> at org.apache.velocity.runtime.parser.Parser.UnaryExpression(Parser.java:2366)
> at org.apache.velocity.runtime.parser.Parser.MultiplicativeExpression(Parser.java:2215)
> at org.apache.velocity.runtime.parser.Parser.AdditiveExpression(Parser.java:2139)
> at org.apache.velocity.runtime.parser.Parser.RelationalExpression(Parser.java:2007)
> at org.apache.velocity.runtime.parser.Parser.EqualityExpression(Parser.java:1931)
> at org.apache.velocity.runtime.parser.Parser.ConditionalAndExpression(Parser.java:1891)
> at org.apache.velocity.runtime.parser.Parser.ConditionalOrExpression(Parser.java:1851)
> at org.apache.velocity.runtime.parser.Parser.Expression(Parser.java:1798)
> at org.apache.velocity.runtime.parser.Parser.SetDirective(Parser.java:1730)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:310)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1453)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
> at org.apache.velocity.runtime.parser.Parser.ElseStatement(Parser.java:1564)
> at org.apache.velocity.runtime.parser.Parser.IfStatement(Parser.java:1495)
> at org.apache.velocity.runtime.parser.Parser.Statement(Parser.java:293)
> at org.apache.velocity.runtime.parser.Parser.process(Parser.java:258)
> at org.apache.velocity.runtime.parser.Parser.parse(Parser.java:105)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:1042)
> at org.apache.velocity.runtime.RuntimeInstance.parse(RuntimeInstance.java:972)
> at org.apache.velocity.Template.process(Template.java:120)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(ResourceManagerImpl.java:415)
> at org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(ResourceManagerImpl.java:335)
> - locked <0x91140270> (a org.apache.velocity.runtime.resource.ResourceManagerImpl)
> at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1102)
> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:177)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.directive.Parse.render(Parse.java:224)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:448)
> at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
> at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
> at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
> at org.apache.velocity.Template.merge(Template.java:254)
> at de.his.servlet.util.ServletUtil.parseWithVelocity(ServletUtil.java:736)
> at de.his.servlet.util.ServletUtil.sendResponseWithVelocity(ServletUtil.java:684)
> at de.his.servlet.HISServletModuleImpl.handleRequest(HISServletModuleImpl.java:637)
> at de.his.servlet.RequestDispatcherServlet.invoke(RequestDispatcherServlet.java:908)
> at de.his.servlet.RequestDispatcherServlet.handleRequest(RequestDispatcherServlet.java:843)
> at de.his.servlet.RequestDispatcherServlet.doGet(RequestDispatcherServlet.java:1060)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
> at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
> at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
> at java.lang.Thread.run(Thread.java:595)
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Re: [jira] Updated: (VELOCITY-562) Hanging in jj_scan_token (while
holding lock for getResouce)
Posted by Stanislaus <ks...@yahoo.co.in>.
Hi..
This is Stan from India..
I have recently upgraded velocity 1.4 to velocity 1.5
And all the related jar files are updated..
I face a problem that.. the performance is down when updated from 1.4 to 1.5
in the development environment.. I mean that I have configured my project
in JbossIDE 1.6
When I debug from there.. the performance is slow compared to velocity 1.4..
Why ?
But the performance is equal when I run the jboss in the run mode.. By
running the run.bat file..
Need your reply soon..
Regards,
Stan
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