From b830605577f369d6b1a8730a5b3476ceea4fef5a Mon Sep 17 00:00:00 2001 From: Ivan Tashkinov Date: Tue, 19 Jan 2021 22:03:25 +0300 Subject: [PATCH] [#3213] Performance-related stat in HashtagsTableMigrator. Reworked `count/_` to indicate approximate total count for current iteration. --- lib/pleroma/migrators/hashtags_table_migrator.ex | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/lib/pleroma/migrators/hashtags_table_migrator.ex b/lib/pleroma/migrators/hashtags_table_migrator.ex index 6a6a7b5b8..e9dd9b70c 100644 --- a/lib/pleroma/migrators/hashtags_table_migrator.ex +++ b/lib/pleroma/migrators/hashtags_table_migrator.ex @@ -80,6 +80,7 @@ def handle_info(:migrate_hashtags, state) do DataMigration.update(data_migration, %{state: :running, data: persistent_data}) update_status(:running) + put_stat(:started_at, NaiveDateTime.utc_now()) Logger.info("Starting transferring object embedded hashtags to `hashtags` table...") @@ -118,6 +119,12 @@ def handle_info(:migrate_hashtags, state) do increment_stat(:processed_count, length(object_ids)) increment_stat(:failed_count, length(failed_ids)) + put_stat( + :records_per_second, + state()[:processed_count] / + Enum.max([NaiveDateTime.diff(NaiveDateTime.utc_now(), state()[:started_at]), 1]) + ) + persist_stats(data_migration) # A quick and dirty approach to controlling the load this background migration imposes @@ -192,13 +199,18 @@ defp transfer_object_hashtags(object) do end) end + @doc "Approximate count for current iteration (including processed records count)" def count(force \\ false, timeout \\ :infinity) do stored_count = state()[:count] if stored_count && !force do stored_count else - count = Repo.aggregate(query(), :count, :id, timeout: timeout) + processed_count = state()[:processed_count] || 0 + max_processed_id = data_migration().data["max_processed_id"] || 0 + query = where(query(), [object], object.id > ^max_processed_id) + + count = Repo.aggregate(query, :count, :id, timeout: timeout) + processed_count put_stat(:count, count) count end