diff --git a/app/logical/downloads/rewrite_strategies/pixiv.rb b/app/logical/downloads/rewrite_strategies/pixiv.rb
index 7b9e35b60..358add316 100644
--- a/app/logical/downloads/rewrite_strategies/pixiv.rb
+++ b/app/logical/downloads/rewrite_strategies/pixiv.rb
@@ -17,7 +17,7 @@ module Downloads
         end
 
         # http://i2.pixiv.net/img-zip-ugoira/img/2014/08/05/06/01/10/44524589_ugoira1920x1080.zip
-        if url =~ %r!\Ahttps?://i[12]\.pixiv\.net/img-zip-ugoira/img/\d{4}/\d{2}/\d{2}/\d{2}/\d{2}/\d{2}/\d+_ugoira\d+x\d+\.zip\z!i
+        if url =~ %r!\Ahttps?://i\d+\.pixiv\.net/img-zip-ugoira/img/\d{4}/\d{2}/\d{2}/\d{2}/\d{2}/\d{2}/\d+_ugoira\d+x\d+\.zip\z!i
           data[:ugoira_frame_data] = source.ugoira_frame_data
           data[:ugoira_width] = source.ugoira_width
           data[:ugoira_height] = source.ugoira_height
diff --git a/app/logical/pixiv_ugoira_service.rb b/app/logical/pixiv_ugoira_service.rb
index c83e68a4a..a56de5abc 100644
--- a/app/logical/pixiv_ugoira_service.rb
+++ b/app/logical/pixiv_ugoira_service.rb
@@ -10,7 +10,8 @@ class PixivUgoiraService
   end
 
   def generate_resizes(source_path, output_path, preview_path)
-    PixivUgoiraConverter.delay(:queue => Socket.gethostname).convert(source_path, output_path, preview_path, @frame_data)
+    # Run this a bit in the future to give the upload process time to move the file
+    PixivUgoiraConverter.delay(:queue => Socket.gethostname, :run_at => 2.seconds.from_now).convert(source_path, output_path, preview_path, @frame_data)
 
     # since the resizes will be delayed, just touch the output file so the
     # file distribution wont break
diff --git a/app/models/upload.rb b/app/models/upload.rb
index 99c366da0..dcc17ef55 100644
--- a/app/models/upload.rb
+++ b/app/models/upload.rb
@@ -241,7 +241,8 @@ class Upload < ActiveRecord::Base
       if is_image?
         Danbooru.resize(source_path, output_path, width, height, quality)
       elsif is_ugoira?
-        ugoira_service.generate_resizes(source_path, resized_file_path_for(Danbooru.config.large_image_width), resized_file_path_for(Danbooru.config.small_image_width))
+        # by the time this runs we'll have moved source_path to md5_file_path
+        ugoira_service.generate_resizes(md5_file_path, resized_file_path_for(Danbooru.config.large_image_width), resized_file_path_for(Danbooru.config.small_image_width))
       elsif is_video?
         generate_video_preview_for(width, height, output_path)
       end
@@ -374,7 +375,7 @@ class Upload < ActiveRecord::Base
       self.file_path = destination_path
       download = Downloads::File.new(source, destination_path, :is_ugoira => has_ugoira_tag?)
       download.download!
-      ugoira_service.load(download.data)
+      ugoira_service.load(download.data) if has_ugoira_tag?
     end
   end
 
diff --git a/db/structure.sql b/db/structure.sql
index d6e07ac4c..bed47fab6 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -3,7 +3,6 @@
 --
 
 SET statement_timeout = 0;
-SET lock_timeout = 0;
 SET client_encoding = 'UTF8';
 SET standard_conforming_strings = on;
 SET check_function_bodies = false;
@@ -422,8 +421,8 @@ CREATE TABLE advertisement_hits (
     id integer NOT NULL,
     advertisement_id integer NOT NULL,
     ip_addr inet NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -460,8 +459,8 @@ CREATE TABLE advertisements (
     height integer NOT NULL,
     file_name character varying(255) NOT NULL,
     is_work_safe boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -491,8 +490,8 @@ ALTER SEQUENCE advertisements_id_seq OWNED BY advertisements.id;
 CREATE TABLE amazon_backups (
     id integer NOT NULL,
     last_id integer,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -558,8 +557,8 @@ CREATE TABLE artist_commentaries (
     original_description text,
     translated_title text,
     translated_description text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -595,8 +594,8 @@ CREATE TABLE artist_commentary_versions (
     original_description text,
     translated_title text,
     translated_description text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -628,8 +627,8 @@ CREATE TABLE artist_urls (
     artist_id integer NOT NULL,
     url text NOT NULL,
     normalized_url text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -667,8 +666,8 @@ CREATE TABLE artist_versions (
     group_name character varying(255),
     url_string text,
     is_banned boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -704,8 +703,8 @@ CREATE TABLE artists (
     other_names text,
     other_names_index tsvector,
     group_name character varying(255),
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -738,8 +737,8 @@ CREATE TABLE bans (
     reason text NOT NULL,
     banner_id integer NOT NULL,
     expires_at timestamp without time zone NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -805,8 +804,8 @@ CREATE TABLE comment_votes (
     comment_id integer NOT NULL,
     user_id integer NOT NULL,
     score integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -841,8 +840,8 @@ CREATE TABLE comments (
     ip_addr inet NOT NULL,
     body_index tsvector NOT NULL,
     score integer DEFAULT 0 NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     updater_id integer,
     updater_ip_addr inet,
     do_not_bump_post boolean DEFAULT false NOT NULL
@@ -882,8 +881,8 @@ CREATE TABLE delayed_jobs (
     locked_at timestamp without time zone,
     failed_at timestamp without time zone,
     locked_by character varying(255),
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     queue character varying(255)
 );
 
@@ -921,8 +920,8 @@ CREATE TABLE dmails (
     message_index tsvector NOT NULL,
     is_read boolean DEFAULT false NOT NULL,
     is_deleted boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     creator_ip_addr inet DEFAULT '127.0.0.1'::inet NOT NULL
 );
 
@@ -1988,8 +1987,8 @@ CREATE TABLE forum_posts (
     body text NOT NULL,
     text_index tsvector NOT NULL,
     is_deleted boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2091,8 +2090,8 @@ CREATE TABLE forum_topics (
     is_locked boolean DEFAULT false NOT NULL,
     is_deleted boolean DEFAULT false NOT NULL,
     text_index tsvector NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     category_id integer DEFAULT 0 NOT NULL
 );
 
@@ -2125,8 +2124,8 @@ CREATE TABLE ip_bans (
     creator_id integer NOT NULL,
     ip_addr inet NOT NULL,
     reason text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2158,8 +2157,8 @@ CREATE TABLE janitor_trials (
     creator_id integer NOT NULL,
     user_id integer NOT NULL,
     original_level integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2190,8 +2189,8 @@ CREATE TABLE key_values (
     id integer NOT NULL,
     key character varying(255) NOT NULL,
     value text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2222,8 +2221,8 @@ CREATE TABLE mod_actions (
     id integer NOT NULL,
     creator_id integer NOT NULL,
     description text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2255,8 +2254,8 @@ CREATE TABLE news_updates (
     message text NOT NULL,
     creator_id integer NOT NULL,
     updater_id integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2295,8 +2294,8 @@ CREATE TABLE note_versions (
     height integer NOT NULL,
     is_active boolean DEFAULT true NOT NULL,
     body text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     version integer DEFAULT 0 NOT NULL
 );
 
@@ -2335,8 +2334,8 @@ CREATE TABLE notes (
     is_active boolean DEFAULT true NOT NULL,
     body text NOT NULL,
     body_index tsvector NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     version integer DEFAULT 0 NOT NULL
 );
 
@@ -2401,8 +2400,8 @@ CREATE TABLE pool_versions (
     post_ids text DEFAULT ''::text NOT NULL,
     updater_id integer NOT NULL,
     updater_ip_addr inet NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     name character varying(255)
 );
 
@@ -2439,8 +2438,8 @@ CREATE TABLE pools (
     post_ids text DEFAULT ''::text NOT NULL,
     post_count integer DEFAULT 0 NOT NULL,
     is_deleted boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     category character varying(255) DEFAULT 'series'::character varying NOT NULL
 );
 
@@ -2474,8 +2473,8 @@ CREATE TABLE post_appeals (
     creator_id integer NOT NULL,
     creator_ip_addr integer NOT NULL,
     reason text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2506,8 +2505,8 @@ CREATE TABLE post_disapprovals (
     id integer NOT NULL,
     user_id integer NOT NULL,
     post_id integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2541,8 +2540,8 @@ CREATE TABLE post_flags (
     creator_ip_addr inet NOT NULL,
     reason text,
     is_resolved boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2571,8 +2570,8 @@ ALTER SEQUENCE post_flags_id_seq OWNED BY post_flags.id;
 
 CREATE TABLE post_versions (
     id integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     post_id integer NOT NULL,
     tags text DEFAULT ''::text NOT NULL,
     rating character(1),
@@ -2611,8 +2610,8 @@ CREATE TABLE post_votes (
     post_id integer NOT NULL,
     user_id integer NOT NULL,
     score integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2641,8 +2640,8 @@ ALTER SEQUENCE post_votes_id_seq OWNED BY post_votes.id;
 
 CREATE TABLE posts (
     id integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     up_score integer DEFAULT 0 NOT NULL,
     down_score integer DEFAULT 0 NOT NULL,
     score integer DEFAULT 0 NOT NULL,
@@ -2757,8 +2756,8 @@ CREATE TABLE tag_aliases (
     creator_ip_addr inet NOT NULL,
     forum_topic_id integer,
     status text DEFAULT 'pending'::text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2794,8 +2793,8 @@ CREATE TABLE tag_implications (
     creator_ip_addr inet NOT NULL,
     forum_topic_id integer,
     status text DEFAULT 'pending'::text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2831,8 +2830,8 @@ CREATE TABLE tag_subscriptions (
     is_public boolean DEFAULT true NOT NULL,
     last_accessed_at timestamp without time zone,
     is_opted_in boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2866,8 +2865,8 @@ CREATE TABLE tags (
     category integer DEFAULT 0 NOT NULL,
     related_tags text,
     related_tags_updated_at timestamp without time zone,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     is_locked boolean DEFAULT false NOT NULL
 );
 
@@ -2900,8 +2899,8 @@ CREATE TABLE transaction_log_items (
     category character varying(255),
     user_id integer,
     data text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -2941,8 +2940,8 @@ CREATE TABLE uploads (
     backtrace text,
     post_id integer,
     md5_confirmation character varying(255),
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     server text,
     parent_id integer
 );
@@ -2977,8 +2976,8 @@ CREATE TABLE user_feedback (
     creator_id integer NOT NULL,
     category character varying(255) NOT NULL,
     body text NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -3014,8 +3013,8 @@ CREATE TABLE user_name_change_requests (
     desired_name character varying(255),
     change_reason text,
     rejection_reason text,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -3046,8 +3045,8 @@ CREATE TABLE user_password_reset_nonces (
     id integer NOT NULL,
     key character varying(255) NOT NULL,
     email character varying(255) NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL
 );
 
 
@@ -3076,8 +3075,8 @@ ALTER SEQUENCE user_password_reset_nonces_id_seq OWNED BY user_password_reset_no
 
 CREATE TABLE users (
     id integer NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     name character varying(255) NOT NULL,
     password_hash character varying(255) NOT NULL,
     email character varying(255),
@@ -3135,8 +3134,8 @@ CREATE TABLE wiki_page_versions (
     title character varying(255) NOT NULL,
     body text NOT NULL,
     is_locked boolean NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     other_names text
 );
 
@@ -3171,8 +3170,8 @@ CREATE TABLE wiki_pages (
     body text NOT NULL,
     body_index tsvector NOT NULL,
     is_locked boolean DEFAULT false NOT NULL,
-    created_at timestamp without time zone,
-    updated_at timestamp without time zone,
+    created_at timestamp without time zone NOT NULL,
+    updated_at timestamp without time zone NOT NULL,
     updater_id integer,
     other_names text,
     other_names_index tsvector