Additional information in the Dashboard shows the state of the index on each server. An Index State can be one of the following.
- Open. The index is available for search requests.
- Opening. The index will shortly be available for search requests.
- Unavailable. The index is not available. The server instance may be down.
- Maintenance. The index exists and is available on the server, but cannot be used for searching currently. This may be the case if the index is being recreated or if RMS is about to bring the index up-to-date after the server instance is started.
- Closing. The index is in the process of closing down.
- Closed. The index is closed and unavailable for searching.
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Closed (inactive). The index is closed following a period of inactivity. Searching on the index will automatically cause the index to open.