[GH-ISSUE #163] After update to 2.5.0 "A task was canceled" occured very often #1063

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opened 2026-03-14 00:06:20 +03:00 by kerem · 3 comments

kerem commented

2026-03-14 00:06:20 +03:00

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Originally created by @big-chen on GitHub (Sep 5, 2016).
Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/163

Just after updating to release 2.5.0. I receive plenty of these exceptions:

INFO  2016-09-03 11:58:58,533 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Starting 'Running synchronization profile 'Familie''
 INFO  2016-09-03 11:58:58,534 [ VSTA_Main]   GenSync.Synchronization.Synchronizer`7 . MoveNext                       - Entered. Syncstrategy 'OneWayInitialSyncStateCreationStrategy_BToA`6' with Atype='ContactItemWrapper' and Btype='vCard'
 INFO  2016-09-03 11:58:58,711 [ VSTA_Main] mplementation.Contacts.CardDavRepository . MoveNext                       - Starting 'CardDavRepository.GetVersions'
 INFO  2016-09-03 12:03:58,712 [ VSTA_Main] mplementation.Contacts.CardDavRepository . MoveNext                       - Duration of 'CardDavRepository.GetVersions': 00:04:59.9904219
 ERROR 2016-09-03 12:03:58,713 [ VSTA_Main]   GenSync.Synchronization.Synchronizer`7 . MoveNext                       - 
System.Threading.Tasks.TaskCanceledException: A task was canceled.
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at CalDavSynchronizer.DataAccess.HttpClientBasedClient.WebDavClient.<ExecuteWebDavRequest>d__9.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at CalDavSynchronizer.DataAccess.HttpClientBasedClient.WebDavClient.<ExecuteWebDavRequestAndReadResponse>d__7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at CalDavSynchronizer.DataAccess.CardDavDataAccess.<GetAllVersions>d__13.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at CalDavSynchronizer.Implementation.Contacts.CardDavRepository.<GetAllVersions>d__5.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at GenSync.Synchronization.Synchronizer`7.<SynchronizeNoThrow>d__17.MoveNext()
 INFO  2016-09-03 12:03:58,714 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext                       - Duration of 'Running synchronization profile 'Familie'': 00:05:00.1697020

This happens for all Repositories, that I've configured, all running on one ownCloud Server.
Increasing the general timeout to 300 helped a bit to reduce the number of messages, but still receive some.
Could it be, that the timeout counter starts when events are read from outlook and not when communication to the remote servers are started?

Thanks for supporting!

Cheers, Lutz.

Originally created by @big-chen on GitHub (Sep 5, 2016). Original GitHub issue: https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/163 Just after updating to release 2.5.0. I receive plenty of these exceptions: ``` INFO 2016-09-03 11:58:58,533 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext - Starting 'Running synchronization profile 'Familie'' INFO 2016-09-03 11:58:58,534 [ VSTA_Main] GenSync.Synchronization.Synchronizer`7 . MoveNext - Entered. Syncstrategy 'OneWayInitialSyncStateCreationStrategy_BToA`6' with Atype='ContactItemWrapper' and Btype='vCard' INFO 2016-09-03 11:58:58,711 [ VSTA_Main] mplementation.Contacts.CardDavRepository . MoveNext - Starting 'CardDavRepository.GetVersions' INFO 2016-09-03 12:03:58,712 [ VSTA_Main] mplementation.Contacts.CardDavRepository . MoveNext - Duration of 'CardDavRepository.GetVersions': 00:04:59.9904219 ERROR 2016-09-03 12:03:58,713 [ VSTA_Main] GenSync.Synchronization.Synchronizer`7 . MoveNext - System.Threading.Tasks.TaskCanceledException: A task was canceled. at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at CalDavSynchronizer.DataAccess.HttpClientBasedClient.WebDavClient.<ExecuteWebDavRequest>d__9.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at CalDavSynchronizer.DataAccess.HttpClientBasedClient.WebDavClient.<ExecuteWebDavRequestAndReadResponse>d__7.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at CalDavSynchronizer.DataAccess.CardDavDataAccess.<GetAllVersions>d__13.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at CalDavSynchronizer.Implementation.Contacts.CardDavRepository.<GetAllVersions>d__5.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task) at GenSync.Synchronization.Synchronizer`7.<SynchronizeNoThrow>d__17.MoveNext() INFO 2016-09-03 12:03:58,714 [ VSTA_Main] .Scheduling.SynchronizationProfileRunner . MoveNext - Duration of 'Running synchronization profile 'Familie'': 00:05:00.1697020 ``` This happens for all Repositories, that I've configured, all running on one ownCloud Server. Increasing the general timeout to 300 helped a bit to reduce the number of messages, but still receive some. Could it be, that the timeout counter starts when events are read from outlook and not when communication to the remote servers are started? Thanks for supporting! Cheers, Lutz.

kerem closed this issue

2026-03-14 00:06:25 +03:00

kerem commented

2026-03-14 00:06:31 +03:00

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@aluxnimm commented on GitHub (Sep 5, 2016):

anything in the oc server log as well?

@aluxnimm commented on GitHub (Sep 5, 2016): anything in the oc server log as well?

kerem commented

2026-03-14 00:06:36 +03:00

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Owner

@big-chen commented on GitHub (Sep 5, 2016):

I had a look. No Warnings/Errors during this time period.
But today, it was quite calm. I restarted the server last
  weekend, now it runs without warnings, timeout set to 300 secs.

I keep an eye on it....


Am 05.09.2016 um 13:21 schrieb Alex
  Nimmervoll:


  anything in the oc server log as well? 
  —
    You are receiving this because you authored the thread.
    Reply to this email directly, view
      it on GitHub, or mute
      the thread.







  {"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/aluxnimm/outlookcaldavsynchronizer","title":"aluxnimm/outlookcaldavsynchronizer","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/aluxnimm/outlookcaldavsynchronizer"}},"updates":{"snippets":[{"icon":"PERSON","message":"@aluxnimm in #163: anything in the oc server log as well? "}],"action":{"name":"View Issue","url":"https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/163#issuecomment-244723634"}}}

@big-chen commented on GitHub (Sep 5, 2016): ``` I had a look. No Warnings/Errors during this time period. But today, it was quite calm. I restarted the server last weekend, now it runs without warnings, timeout set to 300 secs. I keep an eye on it.... Am 05.09.2016 um 13:21 schrieb Alex Nimmervoll: anything in the oc server log as well? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread. {"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/aluxnimm/outlookcaldavsynchronizer","title":"aluxnimm/outlookcaldavsynchronizer","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/aluxnimm/outlookcaldavsynchronizer"}},"updates":{"snippets":[{"icon":"PERSON","message":"@aluxnimm in #163: anything in the oc server log as well? "}],"action":{"name":"View Issue","url":"https://github.com/aluxnimm/outlookcaldavsynchronizer/issues/163#issuecomment-244723634"}}} ```

kerem commented

2026-03-14 00:06:42 +03:00

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@aluxnimm commented on GitHub (Sep 5, 2016):

ok reopen when issue shows up again.

@aluxnimm commented on GitHub (Sep 5, 2016): ok reopen when issue shows up again.