♻️ Minor task naming and directory structure refactor.

backend/src/app/tasks/clean_tasks_table.clj

@@ -0,0 +1,40 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+;;
+;; This Source Code Form is "Incompatible With Secondary Licenses", as
+;; defined by the Mozilla Public License, v. 2.0.
+;;
+;; Copyright (c) 2020 UXBOX Labs SL
+
+(ns app.tasks.clean-tasks-table
+  "A maintenance task that performs a cleanup of already executed tasks
+  from the database table."
+  (:require
+   [app.common.spec :as us]
+   [app.db :as db]
+   [app.metrics :as mtx]
+   [app.util.time :as dt]
+   [clojure.spec.alpha :as s]
+   [clojure.tools.logging :as log]))
+
+(def max-age (dt/duration {:hours 24}))
+
+(def sql:delete-completed-tasks
+  "delete from task_completed
+    where scheduled_at < now() - ?::interval")
+
+(defn handler
+  [task]
+  (db/with-atomic [conn db/pool]
+    (let [interval (db/interval max-age)
+          result   (db/exec-one! conn [sql:delete-completed-tasks interval])]
+      (log/infof "removed %s rows from tasks_completed table." (:next.jdbc/update-count result))
+      nil)))
+
+(mtx/instrument-with-summary!
+ {:var #'handler
+  :id "tasks__clean_tasks_table"
+  :help "Timing of task: clean_task_table"})
+
+

backend/src/app/tasks/file_media_gc.clj

@@ -15,6 +15,7 @@
    [app.common.pages.migrations :as pmg]
    [app.config :as cfg]
    [app.db :as db]
+   [app.metrics :as mtx]
    [app.tasks :as tasks]
    [app.util.blob :as blob]
    [app.util.time :as dt]
@@ -94,10 +95,16 @@
 
 (defn handler
   [_task]
-  (log/debug "running 'file-media-gc' task.")
   (db/with-atomic [conn db/pool]
     (loop []
       (let [files (retrieve-candidates conn)]
         (when (seq files)
           (run! (partial process-file conn) files)
           (recur))))))
+
+
+(mtx/instrument-with-summary!
+ {:var #'handler
+  :id "tasks__file_media_gc"
+  :help "Timing of task: file_media_gc"})
+

backend/src/app/tasks/file_xlog_gc.clj

@@ -0,0 +1,38 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+;;
+;; This Source Code Form is "Incompatible With Secondary Licenses", as
+;; defined by the Mozilla Public License, v. 2.0.
+;;
+;; Copyright (c) 2020 UXBOX Labs SL
+
+(ns app.tasks.file-xlog-gc
+  "A maintenance task that performs a garbage collection of the file
+  change (transaction) log."
+  (:require
+   [app.common.spec :as us]
+   [app.db :as db]
+   [app.metrics :as mtx]
+   [app.util.time :as dt]
+   [clojure.spec.alpha :as s]
+   [clojure.tools.logging :as log]))
+
+(def max-age (dt/duration {:hours 12}))
+
+(def sql:delete-files-xlog
+  "delete from task_completed
+    where scheduled_at < now() - ?::interval")
+
+(defn handler
+  [{:keys [props] :as task}]
+  (db/with-atomic [conn db/pool]
+    (let [interval (db/interval max-age)
+          result   (db/exec-one! conn [sql:delete-files-xlog interval])]
+      (log/infof "removed %s rows from file_changes table." (:next.jdbc/update-count result))
+      nil)))
+
+(mtx/instrument-with-summary!
+ {:var #'handler
+  :id "tasks__file_xlog_gc"
+  :help "Timing of task: file_xlog_gc"})

backend/src/app/tasks/maintenance.clj

@@ -1,71 +0,0 @@
-;; This Source Code Form is subject to the terms of the Mozilla Public
-;; License, v. 2.0. If a copy of the MPL was not distributed with this
-;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
-;;
-;; This Source Code Form is "Incompatible With Secondary Licenses", as
-;; defined by the Mozilla Public License, v. 2.0.
-;;
-;; Copyright (c) 2020 UXBOX Labs SL
-
-(ns app.tasks.maintenance
-  (:require
-   [app.common.spec :as us]
-   [app.db :as db]
-   [app.metrics :as mtx]
-   [app.util.time :as dt]
-   [clojure.spec.alpha :as s]
-   [clojure.tools.logging :as log]))
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Task: Delete Executed Tasks
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-;; This tasks perform a cleanup of already executed tasks from the
-;; database.
-
-(s/def ::max-age ::dt/duration)
-(s/def ::delete-completed-tasks
-  (s/keys :req-un [::max-age]))
-
-(def sql:delete-completed-tasks
-  "delete from task_completed
-    where scheduled_at < now() - ?::interval")
-
-(defn delete-executed-tasks
-  [{:keys [props] :as task}]
-  (us/verify ::delete-completed-tasks props)
-  (db/with-atomic [conn db/pool]
-    (let [max-age (:max-age props)
-          result  (db/exec-one! conn [sql:delete-completed-tasks (db/interval max-age)])]
-      (log/infof "Removed %s rows from tasks_completed table." (:next.jdbc/update-count result))
-      nil)))
-
-(mtx/instrument-with-summary!
- {:var #'delete-executed-tasks
-  :id "tasks__maintenance__delete_executed_tasks"
-  :help "Timing of mainentance task function: delete-remove-tasks."})
-
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; Task: Delete old files xlog
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(s/def ::delete-old-file-xlog
-  (s/keys :req-un [::max-age]))
-
-(def sql:delete-files-xlog
-  "delete from task_completed
-    where scheduled_at < now() - ?::interval")
-
-(defn delete-old-files-xlog
-  [{:keys [props] :as task}]
-  (db/with-atomic [conn db/pool]
-    (let [max-age (:max-age props)
-          result  (db/exec-one! conn [sql:delete-files-xlog (db/interval max-age)])]
-      (log/infof "Removed %s rows from file_changes table." (:next.jdbc/update-count result))
-      nil)))
-
-(mtx/instrument-with-summary!
- {:var #'delete-old-files-xlog
-  :id "tasks__maintenance__delete_old_files_xlog"
-  :help "Timing of mainentance task function: delete-old-files-xlog."})

backend/src/app/worker.clj

@@ -13,12 +13,13 @@
    [app.common.spec :as us]
    [app.common.uuid :as uuid]
    [app.db :as db]
+   [app.tasks.clean-tasks-table]
    [app.tasks.delete-object]
    [app.tasks.delete-profile]
-   [app.tasks.maintenance]
+   [app.tasks.file-media-gc]
+   [app.tasks.file-xlog-gc]
    [app.tasks.remove-media]
    [app.tasks.sendmail]
-   [app.tasks.file-media-gc]
    [app.util.async :as aa]
    [app.util.time :as dt]
    [clojure.core.async :as a]
@@ -56,15 +57,13 @@
     :cron #app/cron "0 0 0 */1 * ? *" ;; daily
     :fn #'app.tasks.file-media-gc/handler}
 
-   {:id "maintenance/delete-executed-tasks"
+   {:id "file-xlog-gc"
     :cron #app/cron "0 0 0 */1 * ?"  ;; daily
-    :fn #'app.tasks.maintenance/delete-executed-tasks
-    :props {:max-age #app/duration "24h"}}
+    :fn #'app.tasks.file-xlog-gc/handler}
 
-   {:id "maintenance/delete-old-files-xlog"
+   {:id "clean-tasks-table"
     :cron #app/cron "0 0 0 */1 * ?"  ;; daily
-    :fn #'app.tasks.maintenance/delete-old-files-xlog
-    :props {:max-age #app/duration "12h"}}
+    :fn #'app.tasks.clean-tasks-table/handler}
    ])
 
 (defstate executor