Use oban for search indexing

config/config.exs

@@ -571,7 +571,8 @@ config :pleroma, Oban,
     remote_fetcher: 2,
     attachments_cleanup: 1,
     new_users_digest: 1,
-    mute_expire: 5
+    mute_expire: 5,
+    search_indexing: 1
   ],
   plugins: [Oban.Plugins.Pruner],
   crontab: [

lib/pleroma/search.ex

@@ -1,19 +1,12 @@
 defmodule Pleroma.Search do
-  def add_to_index(activity) do
-    search_module = Pleroma.Config.get([Pleroma.Search, :module])
+  alias Pleroma.Workers.SearchIndexingWorker
 
-    ConcurrentLimiter.limit(Pleroma.Search, fn ->
-      Task.start(fn -> search_module.add_to_index(activity) end)
-    end)
+  def add_to_index(activity) do
+    SearchIndexingWorker.enqueue("add_to_index", %{"activity" => activity.id})
   end
 
   def remove_from_index(object) do
-    # Also delete from search index
-    search_module = Pleroma.Config.get([Pleroma.Search, :module])
-
-    ConcurrentLimiter.limit(Pleroma.Search, fn ->
-      Task.start(fn -> search_module.remove_from_index(object) end)
-    end)
+    SearchIndexingWorker.enqueue("remove_from_index", %{"object" => object.id})
   end
 
   def search(query, options) do

lib/pleroma/workers/search_indexing_worker.ex

@@ -0,0 +1,21 @@
+defmodule Pleroma.Workers.SearchIndexingWorker do
+  use Pleroma.Workers.WorkerHelper, queue: "search_indexing"
+
+  @impl Oban.Worker
+
+  def perform(%Job{args: %{"op" => "add_to_index", "activity" => activity_id}}) do
+    activity = Pleroma.Activity.get_by_id_with_object(activity_id)
+
+    search_module = Pleroma.Config.get([Pleroma.Search, :module])
+
+    search_module.add_to_index(activity)
+  end
+
+  def perform(%Job{args: %{"op" => "remove_from_index", "object" => object_id}}) do
+    object = Pleroma.Object.get_by_id(object_id)
+
+    search_module = Pleroma.Config.get([Pleroma.Search, :module])
+
+    search_module.remove_from_index(object)
+  end
+end