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Repository corrupted (non-cloneable, non-browseable) after double-push

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oleksandr

28 Aug, 2013 10:57 PM

Finally pushed that 300MB repo

Now I get the following Yellow Screen of Death:

Server Error in '/' Application.
query did not return a unique result: 2
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: NHibernate.NonUniqueResultException: query did not return a unique result: 2

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[NonUniqueResultException: query did not return a unique result: 2]
   NHibernate.Impl.AbstractQueryImpl.UniqueElement(IList list) +161
   NHibernate.Impl.CriteriaImpl.UniqueResult() +70
   HgLab.Core.ObjectModel.PushlogEntryItem.GetPushlogEntryItem(Repository repository, HgNodeID hgNodeID) in c:\Projects\hglab\src\HgLab.Core\ObjectModel\PushlogEntryItem.cs:24
   HgLab.Areas.Project.Controllers.RepositoryController.Files(Repository repository, String changeset, String path) in c:\Projects\hglab\src\HgLab\Areas\Project\Controllers\RepositoryController.cs:84
   lambda_method(Closure , ControllerBase , Object[] ) +236
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +248
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +39
   System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +120
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +637
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +307
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +688
   System.Web.Mvc.Controller.ExecuteCore() +162
   System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +305
   HgLab.Core.Framework.Web.HgLabControllerBase.Execute(RequestContext requestContext) in c:\Projects\hglab\src\HgLab.Core\Framework\Web\HgLabControllerBase.cs:69
   System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +62
   System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +15
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +606
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +288


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929

1. 1 Posted by oleksandr on 28 Aug, 2013 11:06 PM

   

   UPDATE: workaround - removed offending rows from tables PushLogEntry and PushLogEntryItem.

   It seems you check for commits at the start of push, but not at the end, so I was able to push duplicate commits and so it complained.

   • Edit

2. 2 Posted by oleksandr on 28 Aug, 2013 11:08 PM

   

   UPDATE: THE REPO IS CORRUPTED NOW!

   % hg clone --verbose -- https://hg.****.info/hg/main/server C:\dev\server_backup
   requesting all changes
   adding changesets
   adding manifests
   adding file changes
   transaction abort!
   rollback completed
   abort: invalid chunk length -1108361283
   [command returned code 255 Thu Aug 29 02:07:43 2013]
   

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3. 3 Posted by oleksandr on 28 Aug, 2013 11:14 PM

   

   hg verify says:
   

   2892 files, 10 changesets, 2919 total revisions
   5786 integrity errors encountered!
   (first damaged changeset appears to be 0)
   

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4. 4 Posted by oleksandr on 28 Aug, 2013 11:21 PM

   

   tried to update from the corrupted repo, receive this error:
   

   abort: data/doc/????? ????.docx.i@5435435434: no match found!
   

   (details edited, but there are definitely some encoding problems)
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5. Support Staff 5 Posted by Anton Gogolev on 29 Aug, 2013 10:11 AM

   

   Oleksand,

   Yes, removing duplicate PushlogEntryItems does the trick. This bug is already fixed in an upcoming version.

   As for repository corruption, this is very unfortunate. I think this is somehow related to the fact that HgLab was unable to accept the push the first time and there were some leftovers not cleaned up properly. Will try to resolve this ASAP.

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