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🎉 Add maintenance tasks.
This commit is contained in:
Andrey Antukh
Alonso Torres
parent
8dc3165e54
commit
a1b709a9fd
8 changed files with 161 additions and 479 deletions
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@ -9,14 +9,14 @@
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(ns app.tasks
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(ns app.tasks
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(:require
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(:require
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[cuerdas.core :as str]
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[clojure.spec.alpha :as s]
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[clojure.tools.logging :as log]
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[app.common.spec :as us]
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[app.common.spec :as us]
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[app.common.uuid :as uuid]
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[app.common.uuid :as uuid]
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[app.config :as cfg]
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[app.db :as db]
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[app.db :as db]
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[app.metrics :as mtx]
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[app.util.time :as dt]
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[app.util.time :as dt]
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[app.metrics :as mtx]))
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[clojure.spec.alpha :as s]
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[clojure.tools.logging :as log]))
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(s/def ::name ::us/string)
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(s/def ::name ::us/string)
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(s/def ::delay
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(s/def ::delay
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@ -43,7 +43,7 @@
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interval (db/interval duration)
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interval (db/interval duration)
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props (db/tjson props)
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props (db/tjson props)
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id (uuid/next)]
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id (uuid/next)]
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(log/info (str/format "Submit task '%s' to be executed in '%s'." name (str duration)))
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(log/infof "Submit task '%s' to be executed in '%s'." name (str duration))
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(db/exec-one! conn [sql:insert-new-task id name props queue priority max-retries interval])
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(db/exec-one! conn [sql:insert-new-task id name props queue priority max-retries interval])
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id)))
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id)))
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@ -1,76 +0,0 @@
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;; This Source Code Form is subject to the terms of the Mozilla Public
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;; License, v. 2.0. If a copy of the MPL was not distributed with this
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;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
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;;
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;; This Source Code Form is "Incompatible With Secondary Licenses", as
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;; defined by the Mozilla Public License, v. 2.0.
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;;
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;; Copyright (c) 2020 UXBOX Labs SL
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(ns app.tasks.gc
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(:require
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[clojure.spec.alpha :as s]
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[clojure.tools.logging :as log]
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[cuerdas.core :as str]
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[postal.core :as postal]
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[promesa.core :as p]
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[app.common.exceptions :as ex]
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[app.common.spec :as us]
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[app.config :as cfg]
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[app.db :as db]
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[app.tasks :as tasks]
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[app.media-storage :as mst]
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[app.util.blob :as blob]
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[app.util.storage :as ust]))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Task: Remove deleted media
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; The main purpose of this task is analize the `pending_to_delete`
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;; table. This table stores the references to the physical files on
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;; the file system thanks to `handle_delete()` trigger.
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;; Example:
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;; (1) You delete an media-object. (2) This media object is marked as
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;; deleted. (3) A task (`delete-object`) is scheduled for permanent
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;; delete the object. - If that object stores media, the database
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;; will execute the `handle_delete()` trigger which will place
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;; filesystem paths into the `pendint_to_delete` table. (4) This
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;; task (`remove-deleted-media`) permanently delete the file from the
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;; filesystem when is executed (by scheduler).
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(def ^:private
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sql:retrieve-peding-to-delete
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"with items_part as (
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select i.id
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from pending_to_delete as i
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order by i.created_at
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limit ?
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for update skip locked
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)
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delete from pending_to_delete
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where id in (select id from items_part)
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returning *")
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(defn remove-deleted-media
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[{:keys [props] :as task}]
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(letfn [(decode-row [{:keys [data] :as row}]
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(cond-> row
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(db/pgobject? data) (assoc :data (db/decode-pgobject data))))
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(retrieve-items [conn]
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(->> (db/exec! conn [sql:retrieve-peding-to-delete 10])
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(map decode-row)
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(map :data)))
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(remove-media [rows]
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(run! (fn [item]
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(let [path (get item "path")]
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(ust/delete! mst/media-storage path)))
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rows))]
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(loop []
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(let [rows (retrieve-items db/pool)]
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(when-not (empty? rows)
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(remove-media rows)
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(recur))))))
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@ -1,304 +0,0 @@
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;; This Source Code Form is subject to the terms of the Mozilla Public
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;; License, v. 2.0. If a copy of the MPL was not distributed with this
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;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
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;;
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;; This Source Code Form is "Incompatible With Secondary Licenses", as
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;; defined by the Mozilla Public License, v. 2.0.
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;;
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;; Copyright (c) 2020 Andrey Antukh <niwi@niwi.nz>
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(ns app.tasks.impl
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"Async tasks implementation."
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(:require
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[cuerdas.core :as str]
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[clojure.core.async :as a]
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[clojure.spec.alpha :as s]
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[clojure.tools.logging :as log]
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[promesa.exec :as px]
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[app.common.spec :as us]
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[app.common.uuid :as uuid]
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[app.config :as cfg]
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[app.db :as db]
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[app.util.async :as aa]
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[app.util.blob :as blob]
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[app.util.time :as dt])
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(:import
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java.util.concurrent.ScheduledExecutorService
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java.util.concurrent.Executors
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java.time.Duration
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java.time.Instant
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java.util.Date))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Tasks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defn- string-strack-trace
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[^Throwable err]
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(with-out-str
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(.printStackTrace err (java.io.PrintWriter. *out*))))
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(def ^:private
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sql:mark-as-retry
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"update task
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set scheduled_at = clock_timestamp() + '5 seconds'::interval,
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modified_at = clock_timestamp(),
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error = ?,
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status = 'retry',
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retry_num = retry_num + 1
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where id = ?")
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(defn- mark-as-retry
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[conn task error]
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(let [explain (ex-message error)
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sqlv [sql:mark-as-retry explain (:id task)]]
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(db/exec-one! conn sqlv)
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nil))
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(defn- mark-as-failed
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[conn task error]
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(let [explain (ex-message error)]
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(db/update! conn :task
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{:error explain
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:modified-at (dt/now)
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:status "failed"}
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{:id (:id task)})
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nil))
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(defn- mark-as-completed
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[conn task]
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(let [now (dt/now)]
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(db/update! conn :task
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{:completed-at now
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:modified-at now
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:status "completed"}
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{:id (:id task)})
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nil))
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(def ^:private
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sql:select-next-task
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"select * from task as t
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where t.scheduled_at <= now()
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and t.queue = ?
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and (t.status = 'new' or t.status = 'retry')
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order by t.priority desc, t.scheduled_at
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limit 1
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for update skip locked")
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(defn- decode-task-row
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[{:keys [props] :as row}]
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(when row
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(cond-> row
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(db/pgobject? props) (assoc :props (db/decode-transit-pgobject props)))))
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(defn- log-task-error
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[item err]
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(log/error (str/format "Unhandled exception on task '%s' (retry: %s)\n" (:name item) (:retry-num item))
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(str/format "Props: %s\n" (pr-str (:props item)))
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(with-out-str
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(.printStackTrace ^Throwable err (java.io.PrintWriter. *out*)))))
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(defn- handle-task
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[tasks {:keys [name] :as item}]
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(let [task-fn (get tasks name)]
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(if task-fn
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(task-fn item)
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(do
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(log/warn "no task handler found for" (pr-str name))
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nil))))
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(defn- run-task
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[{:keys [tasks conn]} item]
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(try
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(log/debug (str/format "Started task '%s/%s'." (:name item) (:id item)))
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(handle-task tasks item)
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(log/debug (str/format "Finished task '%s/%s'." (:name item) (:id item)))
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(mark-as-completed conn item)
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(catch Exception e
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(log-task-error item e)
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(if (>= (:retry-num item) (:max-retries item))
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(mark-as-failed conn item e)
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(mark-as-retry conn item e)))))
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(defn- event-loop-fn
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[{:keys [tasks] :as opts}]
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(aa/thread-try
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(db/with-atomic [conn db/pool]
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(let [queue (:queue opts "default")
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item (-> (db/exec-one! conn [sql:select-next-task queue])
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(decode-task-row))
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opts (assoc opts :conn conn)]
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(cond
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(nil? item)
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::empty
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(or (= "new" (:status item))
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(= "retry" (:status item)))
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(do
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(run-task opts item)
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::handled)
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:else
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(do
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(log/warn "Unexpected condition on worker event loop:" (pr-str item))
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::handled))))))
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(s/def ::poll-interval ::us/integer)
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(s/def ::fn (s/or :var var? :fn fn?))
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(s/def ::tasks (s/map-of string? ::fn))
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(s/def ::start-worker-params
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(s/keys :req-un [::tasks]
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:opt-un [::poll-interval]))
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(defn start-worker!
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[{:keys [poll-interval]
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:or {poll-interval 5000}
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:as opts}]
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(us/assert ::start-worker-params opts)
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(log/info (str/format "Starting worker '%s' on queue '%s'."
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(:name opts "anonymous")
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(:queue opts "default")))
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(let [cch (a/chan 1)]
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(a/go-loop []
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(let [[val port] (a/alts! [cch (event-loop-fn opts)] :priority true)]
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(cond
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;; Terminate the loop if close channel is closed or
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;; event-loop-fn returns nil.
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(or (= port cch) (nil? val))
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(log/info (str/format "Stop condition found. Shutdown worker: '%s'"
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(:name opts "anonymous")))
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(db/pool-closed? db/pool)
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(do
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(log/info "Worker eventloop is aborted because pool is closed.")
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(a/close! cch))
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(and (instance? java.sql.SQLException val)
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(contains? #{"08003" "08006" "08001" "08004"} (.getSQLState val)))
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(do
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(log/error "Connection error, trying resume in some instants.")
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(a/<! (a/timeout poll-interval))
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(recur))
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(and (instance? java.sql.SQLException val)
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(= "40001" (.getSQLState ^java.sql.SQLException val)))
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(do
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(log/debug "Serialization failure (retrying in some instants).")
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(a/<! (a/timeout 1000))
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(recur))
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(instance? Exception val)
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(do
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(log/error "Unexpected error ocurried on polling the database." val)
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(log/info "Trying resume operations in some instants.")
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(a/<! (a/timeout poll-interval))
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(recur))
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(= ::handled val)
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(recur)
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(= ::empty val)
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(do
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(a/<! (a/timeout poll-interval))
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(recur)))))
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(reify
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java.lang.AutoCloseable
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(close [_]
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(a/close! cch)))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Scheduled Tasks
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(def ^:private
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sql:upsert-scheduled-task
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"insert into scheduled_task (id, cron_expr)
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values (?, ?)
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on conflict (id)
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do update set cron_expr=?")
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(defn- synchronize-schedule-item
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[conn {:keys [id cron] :as item}]
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(let [cron (str cron)]
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(db/exec-one! conn [sql:upsert-scheduled-task id cron cron])))
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(defn- synchronize-schedule!
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[schedule]
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(db/with-atomic [conn db/pool]
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(run! (partial synchronize-schedule-item conn) schedule)))
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(def ^:private sql:lock-scheduled-task
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"select id from scheduled_task where id=? for update skip locked")
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(declare schedule-task!)
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(defn- log-scheduled-task-error
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[item err]
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(log/error "Unhandled exception on scheduled task '" (:id item) "' \n"
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(with-out-str
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(.printStackTrace ^Throwable err (java.io.PrintWriter. *out*)))))
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(defn- execute-scheduled-task
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[{:keys [id cron ::xtor] :as task}]
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(try
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(db/with-atomic [conn db/pool]
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;; First we try to lock the task in the database, if locking is
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;; successful, then we execute the scheduled task; if locking is
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;; not possible (because other instance is already locked id) we
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;; just skip it and schedule to be executed in the next slot.
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(when (db/exec-one! conn [sql:lock-scheduled-task id])
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(log/info "Executing scheduled task" id)
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((:fn task) task)))
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(catch Exception e
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(log-scheduled-task-error task e))
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(finally
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(schedule-task! xtor task))))
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(defn ms-until-valid
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[cron]
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(s/assert dt/cron? cron)
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(let [^Instant now (dt/now)
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^Instant next (dt/next-valid-instant-from cron now)]
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(inst-ms (dt/duration-between now next))))
|
|
||||||
|
|
||||||
(defn- schedule-task!
|
|
||||||
[xtor {:keys [cron] :as task}]
|
|
||||||
(let [ms (ms-until-valid cron)
|
|
||||||
task (assoc task ::xtor xtor)]
|
|
||||||
(px/schedule! xtor ms (partial execute-scheduled-task task))))
|
|
||||||
|
|
||||||
(s/def ::fn (s/or :var var? :fn fn?))
|
|
||||||
(s/def ::id string?)
|
|
||||||
(s/def ::cron dt/cron?)
|
|
||||||
;; (s/def ::xtor #(instance? ScheduledExecutorService %))
|
|
||||||
(s/def ::props (s/nilable map?))
|
|
||||||
(s/def ::scheduled-task
|
|
||||||
(s/keys :req-un [::id ::cron ::fn]
|
|
||||||
:opt-un [::props]))
|
|
||||||
|
|
||||||
(s/def ::schedule (s/coll-of ::scheduled-task))
|
|
||||||
(s/def ::start-scheduler-worker-params
|
|
||||||
(s/keys :req-un [::schedule]))
|
|
||||||
|
|
||||||
(defn start-scheduler-worker!
|
|
||||||
[{:keys [schedule] :as opts}]
|
|
||||||
(us/assert ::start-scheduler-worker-params opts)
|
|
||||||
(let [xtor (Executors/newScheduledThreadPool (int 1))]
|
|
||||||
(synchronize-schedule! schedule)
|
|
||||||
(run! (partial schedule-task! xtor) schedule)
|
|
||||||
(reify
|
|
||||||
java.lang.AutoCloseable
|
|
||||||
(close [_]
|
|
||||||
(.shutdownNow ^ScheduledExecutorService xtor)))))
|
|
||||||
|
|
||||||
(defn stop!
|
|
||||||
[worker]
|
|
||||||
(.close ^java.lang.AutoCloseable worker))
|
|
||||||
|
|
||||||
;; --- Submit API
|
|
||||||
70
backend/src/app/tasks/maintenance.clj
Normal file
70
backend/src/app/tasks/maintenance.clj
Normal file
|
|
@ -0,0 +1,70 @@
|
||||||
|
;; 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.common.exceptions :as ex]
|
||||||
|
[app.config :as cfg]
|
||||||
|
[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
|
||||||
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
|
||||||
|
(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."})
|
||||||
|
|
@ -10,13 +10,17 @@
|
||||||
(ns app.tasks.remove-media
|
(ns app.tasks.remove-media
|
||||||
"Demo accounts garbage collector."
|
"Demo accounts garbage collector."
|
||||||
(:require
|
(:require
|
||||||
[clojure.spec.alpha :as s]
|
|
||||||
[clojure.tools.logging :as log]
|
|
||||||
[app.common.exceptions :as ex]
|
|
||||||
[app.common.spec :as us]
|
[app.common.spec :as us]
|
||||||
|
[app.db :as db]
|
||||||
[app.media-storage :as mst]
|
[app.media-storage :as mst]
|
||||||
[app.metrics :as mtx]
|
[app.metrics :as mtx]
|
||||||
[app.util.storage :as ust]))
|
[app.util.storage :as ust]
|
||||||
|
[clojure.spec.alpha :as s]
|
||||||
|
[clojure.tools.logging :as log]))
|
||||||
|
|
||||||
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
;; Task: Remove Media
|
||||||
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
|
||||||
(s/def ::path ::us/not-empty-string)
|
(s/def ::path ::us/not-empty-string)
|
||||||
(s/def ::props
|
(s/def ::props
|
||||||
|
|
@ -33,3 +37,55 @@
|
||||||
{:var #'handler
|
{:var #'handler
|
||||||
:id "tasks__remove_media"
|
:id "tasks__remove_media"
|
||||||
:help "Timing of remove-media task."})
|
:help "Timing of remove-media task."})
|
||||||
|
|
||||||
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
;; Task: Trim Media Storage
|
||||||
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
|
||||||
|
;; The main purpose of this task is analize the `pending_to_delete`
|
||||||
|
;; table. This table stores the references to the physical files on
|
||||||
|
;; the file system thanks to `handle_delete()` trigger.
|
||||||
|
|
||||||
|
;; Example:
|
||||||
|
;; (1) You delete an media-object. (2) This media object is marked as
|
||||||
|
;; deleted. (3) A task (`delete-object`) is scheduled for permanent
|
||||||
|
;; delete the object. - If that object stores media, the database
|
||||||
|
;; will execute the `handle_delete()` trigger which will place
|
||||||
|
;; filesystem paths into the `pendint_to_delete` table. (4) This
|
||||||
|
;; task (`remove-deleted-media`) permanently delete the file from the
|
||||||
|
;; filesystem when is executed (by scheduler).
|
||||||
|
|
||||||
|
(def ^:private
|
||||||
|
sql:retrieve-peding-to-delete
|
||||||
|
"with items_part as (
|
||||||
|
select i.id
|
||||||
|
from pending_to_delete as i
|
||||||
|
order by i.created_at
|
||||||
|
limit ?
|
||||||
|
for update skip locked
|
||||||
|
)
|
||||||
|
delete from pending_to_delete
|
||||||
|
where id in (select id from items_part)
|
||||||
|
returning *")
|
||||||
|
|
||||||
|
(defn trim-media-storage
|
||||||
|
[{:keys [props] :as task}]
|
||||||
|
(letfn [(decode-row [{:keys [data] :as row}]
|
||||||
|
(cond-> row
|
||||||
|
(db/pgobject? data) (assoc :data (db/decode-pgobject data))))
|
||||||
|
(retrieve-items [conn]
|
||||||
|
(->> (db/exec! conn [sql:retrieve-peding-to-delete 10])
|
||||||
|
(map decode-row)
|
||||||
|
(map :data)))
|
||||||
|
(remove-media [rows]
|
||||||
|
(run! (fn [item]
|
||||||
|
(let [path (get item "path")]
|
||||||
|
(ust/delete! mst/media-storage path)))
|
||||||
|
rows))]
|
||||||
|
(loop []
|
||||||
|
(let [rows (retrieve-items db/pool)]
|
||||||
|
(when-not (empty? rows)
|
||||||
|
(remove-media rows)
|
||||||
|
(recur))))))
|
||||||
|
|
||||||
|
|
||||||
|
|
|
||||||
|
|
@ -53,15 +53,15 @@
|
||||||
(defn duration
|
(defn duration
|
||||||
[ms-or-obj]
|
[ms-or-obj]
|
||||||
(cond
|
(cond
|
||||||
|
(string? ms-or-obj)
|
||||||
|
(Duration/parse (str "PT" ms-or-obj))
|
||||||
|
|
||||||
(duration? ms-or-obj)
|
(duration? ms-or-obj)
|
||||||
ms-or-obj
|
ms-or-obj
|
||||||
|
|
||||||
(integer? ms-or-obj)
|
(integer? ms-or-obj)
|
||||||
(Duration/ofMillis ms-or-obj)
|
(Duration/ofMillis ms-or-obj)
|
||||||
|
|
||||||
(string? ms-or-obj)
|
|
||||||
(Duration/parse ms-or-obj)
|
|
||||||
|
|
||||||
:else
|
:else
|
||||||
(obj->duration ms-or-obj)))
|
(obj->duration ms-or-obj)))
|
||||||
|
|
||||||
|
|
@ -71,7 +71,7 @@
|
||||||
|
|
||||||
(defn parse-duration
|
(defn parse-duration
|
||||||
[s]
|
[s]
|
||||||
(Duration/parse (str "PT" s)))
|
(Duration/parse s))
|
||||||
|
|
||||||
(extend-protocol clojure.core/Inst
|
(extend-protocol clojure.core/Inst
|
||||||
java.time.Duration
|
java.time.Duration
|
||||||
|
|
@ -79,7 +79,7 @@
|
||||||
|
|
||||||
(defmethod print-method Duration
|
(defmethod print-method Duration
|
||||||
[mv ^java.io.Writer writer]
|
[mv ^java.io.Writer writer]
|
||||||
(.write writer (str "#app/duration \"" (.toString ^Duration mv) "\"")))
|
(.write writer (str "#app/duration \"" (subs (str mv) 2) "\"")))
|
||||||
|
|
||||||
(defmethod print-dup Duration [o w]
|
(defmethod print-dup Duration [o w]
|
||||||
(print-method o w))
|
(print-method o w))
|
||||||
|
|
|
||||||
|
|
@ -1,74 +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/.
|
|
||||||
;;
|
|
||||||
;; Copyright (c) 2016 Andrey Antukh <niwi@niwi.nz>
|
|
||||||
|
|
||||||
(ns app.util.workers
|
|
||||||
"A distributed asynchronous tasks queue implementation on top
|
|
||||||
of PostgreSQL reliable advirsory locking mechanism."
|
|
||||||
#_(:require
|
|
||||||
[suricatta.core :as sc]
|
|
||||||
[app.db :as db]))
|
|
||||||
|
|
||||||
;; (defn- poll-for-task
|
|
||||||
;; [conn queue]
|
|
||||||
;; (let [sql (sql/acquire-task {:queue queue})]
|
|
||||||
;; (sc/fetch-one conn sql)))
|
|
||||||
|
|
||||||
;; (defn- mark-task-done
|
|
||||||
;; [conn {:keys [id]}]
|
|
||||||
;; (let [sql (sql/mark-task-done {:id id})]
|
|
||||||
;; (sc/execute conn sql)))
|
|
||||||
|
|
||||||
;; (defn- mark-task-failed
|
|
||||||
;; [conn {:keys [id]} error]
|
|
||||||
;; (let [sql (sql/mark-task-done {:id id :error (.getMessage error)})]
|
|
||||||
;; (sc/execute conn sql)))
|
|
||||||
|
|
||||||
;; (defn- watch-unit
|
|
||||||
;; [conn queue callback]
|
|
||||||
;; (let [task (poll-for-task conn queue)]
|
|
||||||
;; (if (nil? task)
|
|
||||||
;; (Thread/sleep 1000)
|
|
||||||
;; (try
|
|
||||||
;; (sc/atomic conn
|
|
||||||
;; (callback conn task)
|
|
||||||
;; (mark-task-done conn task))
|
|
||||||
;; (catch Exception e
|
|
||||||
;; (mark-task-failed conn task e))))))
|
|
||||||
|
|
||||||
;; (defn- watch-loop
|
|
||||||
;; "Watch tasks on the specified queue and executes a
|
|
||||||
;; callback for each task is received.
|
|
||||||
;; NOTE: This function blocks the current thread."
|
|
||||||
;; [queue callback]
|
|
||||||
;; (try
|
|
||||||
;; (loop []
|
|
||||||
;; (with-open [conn (db/connection)]
|
|
||||||
;; (sc/atomic conn (watch-unit conn queue callback)))
|
|
||||||
;; (recur))
|
|
||||||
;; (catch InterruptedException e
|
|
||||||
;; ;; just ignoring
|
|
||||||
;; )))
|
|
||||||
|
|
||||||
;; (defn watch!
|
|
||||||
;; [queue callback]
|
|
||||||
;; (let [runnable #(watch-loop queue callback)
|
|
||||||
;; thread (Thread. ^Runnable runnable)]
|
|
||||||
;; (.setDaemon thread true)
|
|
||||||
;; (.start thread)
|
|
||||||
;; (reify
|
|
||||||
;; java.lang.AutoCloseable
|
|
||||||
;; (close [_]
|
|
||||||
;; (.interrupt thread)
|
|
||||||
;; (.join thread 2000))
|
|
||||||
|
|
||||||
;; clojure.lang.IDeref
|
|
||||||
;; (deref [_]
|
|
||||||
;; (.join thread))
|
|
||||||
|
|
||||||
;; clojure.lang.IBlockingDeref
|
|
||||||
;; (deref [_ ms default]
|
|
||||||
;; (.join thread ms)
|
|
||||||
;; default))))
|
|
||||||
|
|
@ -15,8 +15,8 @@
|
||||||
[app.db :as db]
|
[app.db :as db]
|
||||||
[app.tasks.delete-object]
|
[app.tasks.delete-object]
|
||||||
[app.tasks.delete-profile]
|
[app.tasks.delete-profile]
|
||||||
[app.tasks.gc]
|
|
||||||
[app.tasks.remove-media]
|
[app.tasks.remove-media]
|
||||||
|
[app.tasks.maintenance]
|
||||||
[app.tasks.sendmail]
|
[app.tasks.sendmail]
|
||||||
[app.tasks.trim-file]
|
[app.tasks.trim-file]
|
||||||
[app.util.async :as aa]
|
[app.util.async :as aa]
|
||||||
|
|
@ -53,13 +53,23 @@
|
||||||
|
|
||||||
(def ^:private schedule
|
(def ^:private schedule
|
||||||
[{:id "remove-deleted-media"
|
[{:id "remove-deleted-media"
|
||||||
:cron (dt/cron "0 0 0 */1 * ? *") ;; daily
|
:cron #app/cron "0 0 0 */1 * ? *" ;; daily
|
||||||
:fn #'app.tasks.gc/remove-deleted-media}
|
:fn #'app.tasks.remove-media/trim-media-storage}
|
||||||
{:id "trim-file"
|
|
||||||
:cron (dt/cron "0 0 0 */1 * ? *") ;; daily
|
|
||||||
:fn #'app.tasks.trim-file/handler}
|
|
||||||
])
|
|
||||||
|
|
||||||
|
{:id "trim-file"
|
||||||
|
:cron #app/cron "0 0 0 */1 * ? *" ;; daily
|
||||||
|
:fn #'app.tasks.trim-file/handler}
|
||||||
|
|
||||||
|
{:id "maintenance/delete-executed-tasks"
|
||||||
|
:cron #app/cron "0 0 */1 * * ?" ;; hourly
|
||||||
|
:fn #'app.tasks.maintenance/delete-executed-tasks
|
||||||
|
:props {:max-age #app/duration "48h"}}
|
||||||
|
|
||||||
|
{:id "maintenance/delete-old-files-xlog"
|
||||||
|
:cron #app/cron "0 0 */1 * * ?" ;; hourly
|
||||||
|
:fn #'app.tasks.maintenance/delete-old-files-xlog
|
||||||
|
:props {:max-age #app/duration "8h"}}
|
||||||
|
])
|
||||||
|
|
||||||
(defstate executor
|
(defstate executor
|
||||||
:start (thread-pool {:idle-timeout 10000
|
:start (thread-pool {:idle-timeout 10000
|
||||||
|
|
@ -82,7 +92,7 @@
|
||||||
|
|
||||||
|
|
||||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
;; Worker Impl
|
;; Tasks Worker Impl
|
||||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||||
|
|
||||||
(def ^:private
|
(def ^:private
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue