The Upgrade Assistant screen is accessible by logging into the Web Console and navigating to [Manage→DPOD Health→Upgrade Assistant].

Some DPOD versions include new versions of the Store engine, which might require some of the existing data to be reindexed to a newer format or structure. The Upgrade Assistant prepares the DPOD instance for upcoming upgrades by reindexing data in the background (if required) while DPOD is up and running.

The screen contains three sections:

Upgrade Assistant - Showing whether the DPOD instance is ready for upgrade or not.
Reindex Options - Showing configuration details that determines the reindexing process behavior.
Reindex Status - Showing a detailed status of the reindexing.

Upgrade Assistant

The Upgrade Assistant section of the screen shows whether the DPOD instance is ready for upgrade or not.

The table below describes the possible Upgrade Assistant Statuses:

Icon	Description
	The system is ready for upgrade.
	Upgrade is not supported for this type of installation. (for Developer Edition or Docker) or The system is not ready yet for upgrade. Upgrading to newer DPOD versions with the same major version of the Store is still possible, even though the warning icon is displayed.

Reindex Options

This section shows the configuration details that determines the reindexing process behavior.
The configuration properties can be edited by clicking on the Edit button.

The table below describes the reindexing configuration properties:

Detail	Description
Reindex Time Window	The period of time during which reindexing is allowed to run. Use the default reindex time window to allow reindexing without any time limitation.
Number of Concurrent Tasks	The number of index sets (1-5) that can be reindexed concurrently. Increasing the number allows for faster reindexing at the cost of server resources, and may be used to get the system ready for upgrade sooner.
Reindex Mode	The speed of each reindex task. Setting to "Intensive" allows for faster reindexing at the cost of server resources, and may be used to get the system ready for upgrade sooner.

Reindex Status

This widget displays a table with details of the reindex status.

The following information is displayed for each index set:

Column	Description
Icon	- Reindexing not required or completed. - Reindexing required but not in process. - Reindexing in process.
Name	Index set name.
Indices Count	The number of indices within that index set that currently exist.
Size	Total size of the index set.
Documents Count	Total documents (such as Syslog messages, resource sampling, etc.) of the index set. Some index sets might contain 0 documents, if certain features are not in use in DPOD.
Documents To Reindex	Total documents that still needs reindexing.
Min. Version	The oldest indices Store version for an index set.
Estimated Duration	Estimated duration left for reindexing all data. The following messages will appear in case there is no estimated duration: `Calculating...` - Waiting for enough documents to be reindexed to provide an estimation. `N/A` - Reindexing is necessary but didn't start yet.

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