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MikePelant
Participating Frequently
February 1, 2022
Question

Coldfusion 2021 Add-On Services PDFg (Windows)

  • February 1, 2022
  • 1 reply
  • 2929 views

Trying to install and connect to the PDFg Service.  Windows Server.  Installation of Add-On Services goes just fine and it starts up the Windows Service just fine.  In CF Admin, under the PDF Service page, I try to "Verify" the connection and it fails saying "Connection verification failed for PDF Service Manager.  Looking at the logs in the Coldfusion Add-On Services folder, the stderrout.log shows the service successfully starting up on port 8993.  However the next several lines show the error from when I try to verify the service.  I can't find any similar issues like this so turning to the community for help.

 

Note: neo-document.xml has the same port (8993) that the service is running on.

 

Any other ideas out there?  Log entries are below:

 

Logs Upon Service Startup:

2022-01-31 22:08:34.374:INFO:oejs.Server:main: jetty-9.4.31.v20200723; built: 2020-07-23T17:57:36.812Z; git: 450ba27947e13e66baa8cd1ce7e85a4461cacc1d; jvm 11.0.13+10-LTS-370
2022-01-31 22:08:34.405:INFO:oejdp.ScanningAppProvider:main: Deployment monitor [file:///C:/ColdFusionAdd-onServices/webapps/] at interval 1
2022-01-31 22:08:34.827:INFO:oejs.session:main: DefaultSessionIdManager workerName=node0
2022-01-31 22:08:34.827:INFO:oejs.session:main: No SessionScavenger set, using defaults
2022-01-31 22:08:34.827:INFO:oejs.session:main: node0 Scavenging every 600000ms
2022-01-31 22:08:34.874:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@3e62d773{AdminServlet,/AdminServlet,file:///C:/ColdFusionAdd-onServices/work/jetty-0_0_0_0-8993-AdminServlet_war-_AdminServlet-any-/webapp/,AVAILABLE}{C:\ColdFusionAdd-onServices\webapps\AdminServlet.war}
2022-01-31 22:08:34.983:INFO:oejsh.ContextHandler:main: Started o.e.j.w.WebAppContext@22ffa91a{PDFgServlet,/PDFgServlet,file:///C:/ColdFusionAdd-onServices/webapps/PDFgServlet/,AVAILABLE}{C:\ColdFusionAdd-onServices\webapps\PDFgServlet}
2022-01-31 22:08:34.999:INFO:oejs.RequestLogWriter:main: Opened C:\ColdFusionAdd-onServices\logs\2022_02_01.request.log
2022-01-31 22:08:35.030:INFO:oejs.AbstractConnector:main: Started ServerConnector@68eedb9e{HTTP/1.1, (http/1.1)}{0.0.0.0:8993}
2022-01-31 22:08:35.045:INFO:oejs.Server:main: Started @2137ms

 

 

Logs Upon Verifying from CF Admin

2022-01-31 22:10:25.233:WARN:oejshC.PDFgServlet:qtp1794717576-24: unavailable
java.util.ConcurrentModificationException
at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
at coldfusion.pdf.service.CFPDFGServicePool.createPDFgServicesPool(CFPDFGServicePool.java:91)
at coldfusion.pdf.service.CFPDFGServicePool.<init>(CFPDFGServicePool.java:53)
at coldfusion.pdf.service.CFPDFGServicePool.getServicePoolInstance(CFPDFGServicePool.java:59)
at coldfusion.pdf.service.CFPDFGServiceManager.initPDFServiceManager(CFPDFGServiceManager.java:77)
at coldfusion.pdf.service.remote.PDFGServlet.init(PDFGServlet.java:228)
at javax.servlet.GenericServlet.init(GenericServlet.java:244)
at org.eclipse.jetty.servlet.ServletHolder$WrapperServlet.init(ServletHolder.java:1289)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:602)
at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:473)
at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:728)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:564)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1377)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:507)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1292)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:501)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.base/java.lang.Thread.run(Thread.java:834)
2022-01-31 22:10:25.237:WARN:oejs.HttpChannel:qtp1794717576-24: /PDFgServlet/verify
javax.servlet.ServletException: javax.servlet.ServletException: PDFgServlet@9ac5bab0==coldfusion.pdf.service.remote.PDFGServlet,jsp=null,order=-1,inst=true,async=false
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:162)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:501)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by:
javax.servlet.ServletException: PDFgServlet@9ac5bab0==coldfusion.pdf.service.remote.PDFGServlet,jsp=null,order=-1,inst=true,async=false
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:620)
at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:473)
at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:728)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:564)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1377)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:507)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1292)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:501)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.base/java.lang.Thread.run(Thread.java:834)
Caused by:
java.util.ConcurrentModificationException
at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1043)
at java.base/java.util.ArrayList$Itr.next(ArrayList.java:997)
at coldfusion.pdf.service.CFPDFGServicePool.createPDFgServicesPool(CFPDFGServicePool.java:91)
at coldfusion.pdf.service.CFPDFGServicePool.<init>(CFPDFGServicePool.java:53)
at coldfusion.pdf.service.CFPDFGServicePool.getServicePoolInstance(CFPDFGServicePool.java:59)
at coldfusion.pdf.service.CFPDFGServiceManager.initPDFServiceManager(CFPDFGServiceManager.java:77)
at coldfusion.pdf.service.remote.PDFGServlet.init(PDFGServlet.java:228)
at javax.servlet.GenericServlet.init(GenericServlet.java:244)
at org.eclipse.jetty.servlet.ServletHolder$WrapperServlet.init(ServletHolder.java:1289)
at org.eclipse.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:602)
at org.eclipse.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:473)
at org.eclipse.jetty.servlet.ServletHolder.prepare(ServletHolder.java:728)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:564)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:602)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1610)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1377)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:507)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1580)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1292)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:234)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
at org.eclipse.jetty.server.Server.handle(Server.java:501)
at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:556)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:273)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
at java.base/java.lang.Thread.run(Thread.java:834)

    1 reply

    BKBK
    BKBK
    Community Expert
    February 1, 2022

    Which logs are those?

     

    What happens when you launch the following test code as a CFM page?

     

    <cftry>
	<cfhttp url="http://127.0.0.1:8993/PDFgServlet/verify" method="get" result="httpResult"></cfhttp>
	<cfdump var="#httpResult#" label="Verify PDFg service using CFHTTP - Result">
<cfcatch type="any" >
	<cfdump var="#cfcatch#" label="Verify PDFg service using CFHTTP - Error">
</cfcatch>	
</cftry>

     

    If you continue to get java.util.ConcurrentModificationException with the above test, it will mean race conditions. That is, two or more threads are simultaneously trying to get access to the same servlet. That will in turn suggest that two instances of the PDFg service are running.

     

    Might the root cause be as follows: you first installed an instance of the PDFg service along with ColdFusion. You then followed that with a second, standalone, instance of the service.  

     

    M
    MikePelantAuthor
    Participating Frequently
    February 1, 2022

    Thanks BKBK, 

    Entirely possible that it is installed twice but wouldn't there be a /jetty folder then underneath /cfusion?

    The logs I referred to were logs that are in the "ColdFusion2021Add-OnServices\logs" folder.

    When I run the code you provide, I just get a generic 500 Server error as follows.

    How can I tell if another instance is running (there is only one in the Windows Services).

    M
    MikePelantAuthor
    Participating Frequently
    February 1, 2022

    BKBK, another potential possibility is we copied the settings from the CF 2016 installation and did a migrate.  On the 2016 Server, it definitely was installed with ColdFusion.  Is it possible CF 2021 thinks that is still the case because of migrating the settings and then installing it as an Add-On Service, threw this into a race condition as you mention?  Not sure but thought I'd add this info.

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