# Workspace Node: Elasticsearch Text Analysis Specifications-Options Tab

In the Elasticsearch Text Analysis node dialog box, under the Specifications heading, select Options tab to access the following options.

Option | Description
--- | ---
Indexing Options | These options are available only when the text source under Quick tab is set to Files or Spreadsheet.
Document upload | Backoff retries: Use this option to specify the number of times the node will retry, indexing of a document if the server is too busy. Backoff time (sec) : Use this option to specify the duration, the node will wait, to retry indexing of a document if the server is too busy. Max. deg. of Parallelism : Use this option to specify the maximum number of bulk request alive at a time. Bulk request size : Use this option to specify the number of documents to send per bulk request. Note: The indexing performance depends mainly on the total size of documents attempted at a time. The general recommendation for good performance is to keep a single request size to 20 MB, for example if you have documents about 1 MB in size each, then, you can use 5 for Bulk request size and 4 for max degree of parallelism so that the combination leads to 20 MB of documents indexed at a time.
Overwrite existing index | Select this option to overwrite, if the index with same name (specified in connection tab) already exists on Elasticsearch server.
Delete Index on completion | Select this option to delete the index created by the node at the end of the analysis.
Elasticsearch request options
Http request timeout (sec) | Use this option to specify the time the server will wait before failing a request.

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