10:11 a.m.
We are having issues with conversations being timed out in 1.0.1GA. This may be fixed in
the CVS version.
We have set the org.jboss.seam.core.Manager.conversationTimeout to 15 seconds through use
of a components.xml.
After pausing on a conversational page for 30 seconds, we attempt to see if the
conversation did timeout. When we click the "Save" link on our page, it allows
the request to go through without redirecting to the "No Conversation" page.
In order to debug the issue, we set some breakpoints in
Manager.setLongRunningConversation, Manager.storeConversation, and
Manager.conversationTimeout to
see how things are playing out.
When we click the Save link, the first thing that happens is the conversation is
restored.
At this point, the longRunningConversation is set to "true".
Stack trace
| Thread [http-0.0.0.0-8080-2] (Suspended (entry into method setLongRunningConversation
in Manager))
| Manager.setLongRunningConversation(boolean) line: 294
| Manager.restoreConversation(String) line: 587
| Manager.restoreConversation(Map) line: 521
| AbstractSeamPhaseListener.restoreAnyConversationContext(FacesContext) line: 41
| SeamPhaseListener.afterPhase(PhaseEvent) line: 63
| PhaseListenerManager.informPhaseListenersAfter(PhaseId) line: 89
| LifecycleImpl.restoreView(FacesContext, PhaseListenerManager) line: 181
| LifecycleImpl.execute(FacesContext) line: 66
| FacesServlet.service(ServletRequest, ServletResponse) line: 137
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
252
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ExtensionsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 144
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| SeamRedirectFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line:
30
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ReplyHeaderFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 96
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| StandardWrapperValve.invoke(Request, Response) line: 213
| StandardContextValve.invoke(Request, Response) line: 178
| SecurityAssociationValve.invoke(Request, Response) line: 175
| BasicAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 524
| JaccContextValve.invoke(Request, Response) line: 74
| StandardHostValve.invoke(Request, Response) line: 126
| ErrorReportValve.invoke(Request, Response) line: 105
| StandardEngineValve.invoke(Request, Response) line: 107
| CoyoteAdapter.service(Request, Response) line: 148
| Http11Processor.process(InputStream, OutputStream) line: 869
|
Http11Protocol$JmxHttp11ConnectionHandler(Http11BaseProtocol$Http11ConnectionHandler).processConnection(TcpConnection,
Object[]) line: 664
| PoolTcpEndpoint.processSocket(Socket, TcpConnection, Object[]) line: 527
| MasterSlaveWorkerThread.run() line: 112
| ThreadWithAttributes(Thread).run() line: 595
|
Because the longRunningConversation is "true", the conversation is touched.
When the conversation is touched, the ConversationEntry.lastRequestTime is updated to the
current time.
| public void storeConversation(ContextAdaptor session, Object response)
| ....
| if ( isLongRunningConversation() )
| {
| touchConversationStack();
| if ( !Seam.isSessionInvalid() )
| {
| forceMutableComponentReplication();
| storeLongRunningConversation(response);
| }
| }
| else
| {
| discardTemporaryConversation(session, response);
| }
|
|
Stack trace
| Thread [http-0.0.0.0-8080-1] (Suspended (entry into method touchConversationStack in
Manager))
| Manager.touchConversationStack() line: 164
| Manager.storeConversation(ContextAdaptor, Object) line: 368
| AbstractSeamPhaseListener.storeAnyConversationContext(FacesContext) line: 69
| SeamStateManager.saveSerializedView(FacesContext) line: 45
| FaceletViewHandler.renderView(FacesContext, UIViewRoot) line: 578
| LifecycleImpl.render(FacesContext) line: 384
| FacesServlet.service(ServletRequest, ServletResponse) line: 138
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
252
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ExtensionsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 144
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| SeamRedirectFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line:
30
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ReplyHeaderFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 96
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| StandardWrapperValve.invoke(Request, Response) line: 213
| StandardContextValve.invoke(Request, Response) line: 178
| SecurityAssociationValve.invoke(Request, Response) line: 175
| BasicAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 524
| JaccContextValve.invoke(Request, Response) line: 74
| StandardHostValve.invoke(Request, Response) line: 126
| ErrorReportValve.invoke(Request, Response) line: 105
| StandardEngineValve.invoke(Request, Response) line: 107
| CoyoteAdapter.service(Request, Response) line: 148
| Http11Processor.process(InputStream, OutputStream) line: 869
|
Http11Protocol$JmxHttp11ConnectionHandler(Http11BaseProtocol$Http11ConnectionHandler).processConnection(TcpConnection,
Object[]) line: 664
| PoolTcpEndpoint.processSocket(Socket, TcpConnection, Object[]) line: 527
| MasterSlaveWorkerThread.run() line: 112
| ThreadWithAttributes(Thread).run() line: 595
|
Finally, the conversation timeout check occurs. Because the
ConversationEntry.lastRequestTime was updated a few milliseconds ago, the delta is never
going to be bigger than the conversationEntry.getTimeout(). Note that at this point
conversationEntry.getTimeout() is correctly returning "15000".
| /**
| * Clean up timed-out conversations
| */
| public void conversationTimeout(ExternalContext externalContext)
| {
| long currentTime = System.currentTimeMillis();
| Iterator<Map.Entry<String, ConversationEntry>> entries =
getConversationIdEntryMap().entrySet().iterator();
| while ( entries.hasNext() )
| {
| Map.Entry<String, ConversationEntry> entry = entries.next();
| ConversationEntry conversationEntry = entry.getValue();
| long delta = currentTime - conversationEntry.getLastRequestTime();
| if ( delta > conversationEntry.getTimeout() )
| {
| String conversationId = entry.getKey();
| log.debug("conversation timeout for conversation: " +
conversationId);
| ContextAdaptor session = ContextAdaptor.getSession(externalContext,
true);
| destroyConversation(conversationId, session, entries);
| }
| }
| }
|
Stack trace
| Thread [http-0.0.0.0-8080-1] (Suspended (entry into method conversationTimeout in
Manager))
| Manager.conversationTimeout(ExternalContext) line: 316
| SeamPhaseListener.afterPhase(PhaseEvent) line: 93
| PhaseListenerManager.informPhaseListenersAfter(PhaseId) line: 89
| LifecycleImpl.render(FacesContext) line: 391
| FacesServlet.service(ServletRequest, ServletResponse) line: 138
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
252
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ExtensionsFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 144
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| SeamRedirectFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line:
30
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| ReplyHeaderFilter.doFilter(ServletRequest, ServletResponse, FilterChain) line: 96
| ApplicationFilterChain.internalDoFilter(ServletRequest, ServletResponse) line:
202
| ApplicationFilterChain.doFilter(ServletRequest, ServletResponse) line: 173
| StandardWrapperValve.invoke(Request, Response) line: 213
| StandardContextValve.invoke(Request, Response) line: 178
| SecurityAssociationValve.invoke(Request, Response) line: 175
| BasicAuthenticator(AuthenticatorBase).invoke(Request, Response) line: 524
| JaccContextValve.invoke(Request, Response) line: 74
| StandardHostValve.invoke(Request, Response) line: 126
| ErrorReportValve.invoke(Request, Response) line: 105
| StandardEngineValve.invoke(Request, Response) line: 107
| CoyoteAdapter.service(Request, Response) line: 148
| Http11Processor.process(InputStream, OutputStream) line: 869
|
Http11Protocol$JmxHttp11ConnectionHandler(Http11BaseProtocol$Http11ConnectionHandler).processConnection(TcpConnection,
Object[]) line: 664
| PoolTcpEndpoint.processSocket(Socket, TcpConnection, Object[]) line: 527
| MasterSlaveWorkerThread.run() line: 112
| ThreadWithAttributes(Thread).run() line: 595
|
If you artificially put a 20 second sleep in the Manager.conversationTimeout function, it
will correctly detect that the conversation did indeed timeout.
It will then call destroyConversation. However, it fails to redirect to the outcome we
specified in our @Conversational annotation. Instead, it
allows our "Save" request to continue as normal and renders the
"Saved" page.
Finally, if we click a link on this "Saved" page, it detects that the
conversation did indeed timeout, and thus redirects
to the @Conversational Annotations's ifNotBegunOutcome.
So there are multiple issues:
1. The long running conversation will never timeout since the lastRequestTime is always
updated before the conversationTimeout check occurs.
2. Even if the conversation timeout check picks up the conversation was timedout, it still
allows the method to continue. Note that fixing Issue 1, may
prevent Issue 2 from ever occurring.
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knaas