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Failure during daily index rebuild

Scott Forsyth Dynamicweb Employee
Scott Forsyth


We have an issue with an index that fails during the daily rebuild. It's a full user repository build, using a standard Swift site. I don't believe we have any customizations on it. (

I haven't seen this on other similar sites with the same platform version yet, although this is happening on both the DEV and UAT sites for this project. The dev site has just 7 users and it fails. The UAT site has 65K users, and also fails.

It doesn't fail when running the rebuild it manually.

For now, I've set up a A and B instance rather than the Users instance, so there is some redundancy.

Are there any known issues with this?


2022-07-01 05:15:05.176: Running. ThreadID: 177
2022-07-01 05:15:05.181: Fetching build definition. ThreadID: 177
2022-07-01 05:15:05.181: Fetched build definition. 'Dynamicweb.UserManagement.Indexing.UserIndexBuilder'. ThreadID: 177
2022-07-01 05:15:05.181: Preparing schema. ThreadID: 177
2022-07-01 05:15:05.221: Prepared schema. ThreadID: 177
2022-07-01 05:15:05.221: Creating index writer. ThreadID: 177
2022-07-01 05:15:05.231: Created index writer: 'Dynamicweb.Indexing.Lucene.LuceneIndexWriter'. ThreadID: 177
2022-07-01 05:15:05.231: Instance availability (Users): False. ThreadID: 177
2022-07-01 05:15:05.231: Starting build process. ThreadID: 177
2022-07-01 05:15:05.231: Dynamicweb.UserManagement.Indexing.UserIndexBuilder building using Dynamicweb.Indexing.Lucene.LuceneIndexWriter... Action: 'Full', Resume: 'False'  (Threadid: 177) ThreadID: 177
2022-07-01 05:15:05.231: Opening index writer. ThreadID: 177
2022-07-01 05:15:05.271: Users index builder experienced a fatal error.. System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.    at System.Reflection.RuntimeModule.GetTypes(RuntimeModule module)    at System.Reflection.Assembly.GetTypes()    at System.Linq.Enumerable.<SelectManyIterator>d__17`2.MoveNext()    at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()    at Dynamicweb.Indexing.Lucene.Analyzers.AnalyzerFactory.LoadCreators()    at Dynamicweb.Indexing.Lucene.Analyzers.AnalyzerFactory.get_Instance()    at Dynamicweb.Indexing.Lucene.Helpers.GetAnalyzer(IIndex index, String providerTypeName)    at Dynamicweb.Indexing.Lucene.LuceneIndexWriter.Open(Boolean openForAppend)    at Dynamicweb.UserManagement.Indexing.UserIndexBuilder.Build(IIndexWriter writer, Tracker tracker)
2022-07-01 05:15:05.271: Users index builder experienced a fatal error.
2022-07-01 05:15:05.326: Failed. ThreadID: 177
2022-07-01 05:15:05.326: indexer.Build(writer, tracker) failed. tracker.Status.State = tracking dot state dot failed. ThreadID: 177
2022-07-01 05:15:05.326: Closing index writer, just trying... ThreadID: 177
2022-07-01 05:15:05.326: Closed index writer successfully. ThreadID: 177







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