Add standalone prune_orphaned_activities CLI task
This part of pruning can be very expensive and bog down the whole instance to an unusable sate for a long time. It can thus be desireable to split it from prune_objects and run it on its own in smaller limited batches. If the batches are smaller enough and spaced out a bit, it may even be possible to avoid any downtime. If not, the limit can still help to at least make the downtime duration somewhat more predictable.
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@ -106,6 +106,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
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- Akkoma API is now documented
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- ability to auto-approve follow requests from users you are already following
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- The SimplePolicy MRF can now strip user backgrounds from selected remote hosts
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- New standalone `prune_orphaned_activities` mix task with configurable batch limit
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## Changed
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- OTP builds are now built on erlang OTP26
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@ -53,6 +53,28 @@ This will prune remote posts older than 90 days (configurable with [`config :ple
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- `--prune-orphaned-activities` - Also prune orphaned activities afterwards. Activities are things like Like, Create, Announce, Flag (aka reports)... They can significantly help reduce the database size.
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- `--vacuum` - Run `VACUUM FULL` after the objects are pruned. This should not be used on a regular basis, but is useful if your instance has been running for a long time before pruning.
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## Prune orphaned activities from the database
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This will prune activities which are no longer referenced by anything.
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Such activities might be the result of running `prune_objects` without `--prune-orphaned-activities`.
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The same notes and warnings apply as for `prune_objects`.
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=== "OTP"
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```sh
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./bin/pleroma_ctl database prune_orphaned_activities [option ...]
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```
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=== "From Source"
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```sh
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mix pleroma.database prune_orphaned_activities [option ...]
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```
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### Options
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- `--limit n` - Only delete up to `n` activities in each query making up this job, i.e. if this job runs two queries at most `2n` activities will be deleted. Running this task repeatedly in limited batches can help maintain the instance’s responsiveness while still freeing up some space.
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## Create a conversation for all existing DMs
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Can be safely re-run
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@ -20,7 +20,14 @@ defmodule Mix.Tasks.Pleroma.Database do
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@shortdoc "A collection of database related tasks"
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@moduledoc File.read!("docs/docs/administration/CLI_tasks/database.md")
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def prune_orphaned_activities() do
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def prune_orphaned_activities(limit \\ 0) when is_number(limit) do
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limit_arg =
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if limit > 0 do
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"LIMIT #{limit}"
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else
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""
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end
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# Prune activities who link to a single object
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"""
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delete from public.activities
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@ -34,6 +41,7 @@ defmodule Mix.Tasks.Pleroma.Database do
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and o.id is null
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and a2.id is null
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and u.id is null
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#{limit_arg}
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)
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"""
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|> Repo.query([], timeout: :infinity)
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@ -51,6 +59,7 @@ defmodule Mix.Tasks.Pleroma.Database do
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having max(o.data ->> 'id') is null
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and max(a2.data ->> 'id') is null
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and max(u.ap_id) is null
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#{limit_arg}
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)
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"""
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|> Repo.query([], timeout: :infinity)
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@ -98,6 +107,33 @@ defmodule Mix.Tasks.Pleroma.Database do
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)
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end
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def run(["prune_orphaned_activities" | args]) do
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{options, [], []} =
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OptionParser.parse(
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args,
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strict: [
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limit: :integer
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]
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)
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start_pleroma()
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limit = Keyword.get(options, :limit, 0)
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log_message = "Pruning orphaned activities"
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log_message =
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if limit > 0 do
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log_message <> ", limiting deletion to #{limit} rows"
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else
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log_message
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end
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Logger.info(log_message)
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prune_orphaned_activities(limit)
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end
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def run(["prune_objects" | args]) do
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{options, [], []} =
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OptionParser.parse(
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