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Perma-seed Servarr media libraries

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TL;DR: Perma-seeding of whole Servarr libraries optimized for per-tracker ratio.

  • Delete torrents/items only as disk space gets low.

  • Don’t delete currently imported items. IOW, only delete upgraded items.

  • Don’t delete private items that haven’t met seeding requirements.

  • Delete public items first

  • Delete private items in an order to maximize tracker ratio and/or bonuses.

  • And more…

Summary

Seed Servarr download client torrents/items as long as possible only deleting them as necessary as disk space gets low, hence the name based on “to prune”. Which download items are considered eligible for deletion is configured by the user. The common case is that download items that are currently imported are not considered for deletion. Neither are items from private trackers/indexers that have been upgraded or otherwise deleted from the library but haven’t met the indexers seeding requirements. The order in which download items are deleted is determined according to rules configured by the user. The common case is to delete items from public indexers first and among those to delete the items with the highest ratio first to preserve the health of the community by seeding less popular items longer. Next delete items from private indexers by configured indexer priority and within the items for a given indexer to delete items in an order to maximize ratio and/or seeding rewards.

Other configured operations may be applied as well. For example:

  • Verify and resume corrupt items

  • Increase bandwidth priority for items from private indexers

  • Decrease bandwidth priority for items from public indexers

  • Remove and blacklist download items containing archives (*.rar, *.zip, *.tar.gz, etc.) which can’t be perma-seeded

  • Remove and blacklist stalled download items

  • etc.

The $ prunerr command is intended to serve as a companion to the Servarr suite of applications and services and the Transmission BitTorrent client. It periodically polls the download clients of Sonarr, Radarr, etc. and applies the configured operations to the download items in each of those download clients. It can also be run independently of any Servarr instances to optimize seeding for download items added by other means, e.g. FlexGet.

See the Usage section below for full details.

Installation

Install using any tool for installing standard Python 3 distributions such as pip:

$ sudo pip3 install prunerr

Optional shell tab completion is available via argcomplete.

Or use the Docker image. See the example ./docker-compose.yml file for usage details.

Usage

Start by writing your ~/.config/prunerr.yml configuration file. See the comments in the example configuration for details.

Once configured, you may run individual sub-commands once, run all operations once as configured using the $ prunerr exec sub-command, or run all operations in a polling loop using the $ prunerr daemon sub-command. See the Order of Operations section for a detailed description of the operations. Use the CLI help to list the other sub-commands and to get help on the individual sub-commands:

$ prunerr --help
$ prunerr exec --help

Set the DEBUG environment variable to true to get verbose details and help understand what Prunerr is doing:

$ DEBUG=true prunerr exec

Order of Operations

Note that polling is required because there is no event we can subscribe to that reliably determines disk space margin as the download clients are downloading. Every run of the $ prunerr exec sub-command or every loop of the $ prunerr daemon sub-command performs the following operations.

  1. Verify and resume corrupt items, same as: $ prunerr verify.

  2. Review download items, same as: $ prunerr review:

    Apply per-indexer review operations as configured under indexers/reviews in the configuration file to all download items.

  3. Move download items that have been acted on by Servarr to the */seeding/* directory, same as: $ prunerr move.

    As Servarr acts on completed download items, be that importing files from them, ignoring them, deleting them from the queue, etc., Prunerr moves those items from the Servarr download client’s Directory to a parallel */seeding/* directory. Then when deleting download items to free space, Prunerr only considers items under that directory. This has the added benefit of reflecting which items have been acted on by Servarr in the download client.

  4. Delete download items if disk space is low, same as: $ prunerr free-space.

    Consider items for deletion in different groups in this order:

    1. Download items no longer registered with tracker.

      IOW, items that can no longer be seeded at all first.

    2. Orphan files and directories not belonging to any download item

      Walk all the top-level directories used by each download client and identify which paths don’t correspond to a download client item.

    3. Imported/seeding download items

      IOW, download items that have been acted upon by Servarr and moved to the */seeding/* directory by the $ prunerr move sub-command/operation excluding those items filtered out according to the indexers/priorities operations with filter: true. For example, don’t delete currently imported items (by hard link count) or items that haven’t met private indexer seeding requirements.

    For each of these groups in order, loop through each item in the group and:

    1. Check disk space against the margin configured by download-clients/max-download-bandwidth and download-clients/min-download-time-margin

    2. If there’s sufficient disk space, remove any bandwidth limits set previously and continue to the next operation if any.

    3. Otherwise, delete the item.

    If there’s still not enough disk space after going through all the groups, then stop downloading by setting the download bandwidth limit to 0. IOW, keep seeding, but no more downloading until a future $ prunerr free-space run is able to free sufficient space.

    For the orphans group, delete smaller items first to minimize the amount of re-downloading needed should the user notice and correct any issues resulting in the orphans.

    For the other groups delete items in the order determined by the configured indexers/priorities indexer order then by the configured operations for that item’s indexer.

CONTRIBUTING

NOTE: This project is hosted on GitLab. There’s a mirror on GitHub but please use GitLab for reporting issues, submitting PRs/MRs and any other development or maintenance activity.

See the ./CONTRIBUTING.rst file for more details on how to get started with development.

Motivation

I didn’t like the available options I could find at the time for maximizing seeding from a lovingly managed media library. Deleting by a ratio threshold doesn’t make sense to me because that can delete items when there’s plenty of disk space. Also the ratio threshold is a reverse indicator for items from private indexers vs items from public indexers. Items from private indexers with high ratios should be kept around as long as possible to build user total ratio whereas items from public indexers with low ratios should be kept around as long as possibility to preserve access in the community/ecosystem. Finally, deleting any item still imported in the Servarr just because it hit the ratio threshold is the biggest waste since it doesn’t free any space. So I wrote Prunerr to prune download items in the correct order.

Finally, there is a laundry list of other download client management tasks that can be automated but aren’t by anything I could find. So I added them to Prunerr as well.

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