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Update search-howto-index-azure-data-lake-storage.md
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articles/search/search-howto-index-azure-data-lake-storage.md

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@@ -5,7 +5,6 @@ description: Set up an Azure Data Lake Storage (ADLS) Gen2 indexer to automate i
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author: gmndrg
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ms.author: gimondra
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manager: nitinme
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ms.service: cognitive-search
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ms.custom:
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## Limitations
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1. Unlike blob indexers, ADLS Gen2 indexers cannot utilize container level SAS tokens for enumerating and indexing content from a storage account. This is because the indexer makes a check to determine if the storage account has hierarchical namespaces enabled by calling the [Filesystem - Get properties API](https://learn.microsoft.com/rest/api/storageservices/datalakestoragegen2/filesystem/get-properties). For storage accounts where hierarchical namespaces are not enabled, customers are instead recommended to utilize [blob indexers](search-howto-indexing-azure-blob-storage.md) to ensure performant enumeration of blobs.
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1. Unlike blob indexers, ADLS Gen2 indexers cannot utilize container level SAS tokens for enumerating and indexing content from a storage account. This is because the indexer makes a check to determine if the storage account has hierarchical namespaces enabled by calling the [Filesystem - Get properties API](/rest/api/storageservices/datalakestoragegen2/filesystem/get-properties). For storage accounts where hierarchical namespaces are not enabled, customers are instead recommended to utilize [blob indexers](search-howto-indexing-azure-blob-storage.md) to ensure performant enumeration of blobs.
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2. If the property `metadata_storage_path` is mapped to be the index key field, blobs are not guaranteed to get reindexed upon a directory rename. If you desire to reindex the blobs that are part of the renamed directories, update the `LastModified` timestamps for all of them.
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