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Sitecore 9.1 Azure master index rebuild gets stuck

I'm working on a Sitecore PaaS solution on Azure. I provision a Sitecore xsmall instance with the standard marketplace procedure. Right after installing I went for a complete index rebuild. But when Sitecore starts rebuilding master database indexes, it gets stuck after a random number of indexes are added.

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I tried a number of different configuration modifications but none of them worked.

Any ideas?

[EDIT]

Ok, I found the logs.

Nested Exception

Exception: Sitecore.ContentSearch.Azure.Http.Exceptions.AzureSearchServiceRESTCallException Message: {"error":{"code":"","message":"The request is invalid. Details: definition : Invalid index: The index contains 1036 field(s). An index can have at most 1000 fields.\r\n"}}

I saw there's a patch for Sitecore 8 but I'm using v9. Can I install it anyways?

Solution

  • After getting help from Sitecore, this was recognized as a bug. Reference number 207507.

    As a workaround I had to manually exclude fields from being indexed:

    1. in App_Config/Include/Sitecore.ContentSearch.Azure/Sitecore.ContentSearch.Azure.DefaultIndexConfiguration.config set <indexAllFields> to false
    2. Add fields to exclude to App_Config/Include/Sitecore.ContentSearch.Azure/Sitecore.ContentSearch.Azure.Index.Master.ExcludeFields.config