This document provides instructions on upgrading an HDP Windows cluster from HDP 1.3 or 2.0 to HDP 2.1. This is an “in-place” upgrade, where your user data and metadata does not need to be moved during the upgrade process but services must be stopped and re-installed. All the instructions in this section use the MS-DOS command prompt.
![[Warning]](../common/images/admon/warning.png) | Warning |
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These upgrade instructions only apply to HDP clusters that are not configured for high availability. |
