From ce2ae144e622f0855684ae30d88741877b448db0 Mon Sep 17 00:00:00 2001
From: Aaron Schulz <aschulz@wikimedia.org>
Date: Thu, 17 Jul 2014 12:18:13 -0700
Subject: [PATCH] Removed NextJobDB, which was only used by the old
 jobs-loop.sh script

Change-Id: Ia74386c65011ecca2bd4a0fae6509febd1b2d523
---
 RELEASE-NOTES-1.24        |   1 +
 maintenance/nextJobDB.php | 111 --------------------------------------
 2 files changed, 1 insertion(+), 111 deletions(-)
 delete mode 100644 maintenance/nextJobDB.php

diff --git a/RELEASE-NOTES-1.24 b/RELEASE-NOTES-1.24
index 9abbb778a7..dbc1214ecd 100644
--- a/RELEASE-NOTES-1.24
+++ b/RELEASE-NOTES-1.24
@@ -248,6 +248,7 @@ changes to languages because of Bugzilla reports.
 * Removed Action::execute().
 * Removed AjaxAddScript which has been obsolete since ResourceLoader and
   is unused by any modern extension.
+* Removed maintenance/nextJobDB.php; no longer in use.
 
 ==== Renamed classes ====
 * CLDRPluralRuleConverter_Expression to CLDRPluralRuleConverterExpression
diff --git a/maintenance/nextJobDB.php b/maintenance/nextJobDB.php
deleted file mode 100644
index d17236338c..0000000000
--- a/maintenance/nextJobDB.php
+++ /dev/null
@@ -1,111 +0,0 @@
-<?php
-/**
- * Pick a database that has pending jobs
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- * @file
- * @ingroup Maintenance
- */
-
-require_once __DIR__ . '/Maintenance.php';
-
-/**
- * Maintenance script that picks a database that has pending jobs.
- *
- * @ingroup Maintenance
- */
-class NextJobDB extends Maintenance {
-	public function __construct() {
-		parent::__construct();
-		$this->mDescription = "Pick a database that has pending jobs";
-		$this->addOption( 'type', "Search by job type", false, true );
-		$this->addOption( 'types', "Space separated list of job types to search for", false, true );
-	}
-
-	public function execute() {
-		global $wgJobTypesExcludedFromDefaultQueue;
-
-		// job type required/picked
-		if ( $this->hasOption( 'types' ) ) {
-			$types = explode( ' ', $this->getOption( 'types' ) );
-		} elseif ( $this->hasOption( 'type' ) ) {
-			$types = array( $this->getOption( 'type' ) );
-		} else {
-			$types = false;
-		}
-
-		// Handle any required periodic queue maintenance
-		$this->executeReadyPeriodicTasks();
-
-		// Get all the queues with jobs in them
-		$pendingDBs = JobQueueAggregator::singleton()->getAllReadyWikiQueues();
-		if ( !count( $pendingDBs ) ) {
-			return; // no DBs with jobs or cache is both empty and locked
-		}
-
-		$candidates = array(); // list of (type, db)
-		// Flatten the tree of candidates into a flat list so that a random
-		// item can be selected, weighing each queue (type/db tuple) equally.
-		foreach ( $pendingDBs as $type => $dbs ) {
-			if (
-				( is_array( $types ) && in_array( $type, $types ) ) ||
-				( $types === false && !in_array( $type, $wgJobTypesExcludedFromDefaultQueue ) )
-			) {
-				foreach ( $dbs as $db ) {
-					$candidates[] = array( $type, $db );
-				}
-			}
-		}
-		if ( !count( $candidates ) ) {
-			return; // no jobs for this type
-		}
-
-		list( $type, $db ) = $candidates[mt_rand( 0, count( $candidates ) - 1 )];
-
-		if ( $this->hasOption( 'types' ) ) {
-			$this->output( $db . " " . $type . "\n" );
-		} else {
-			$this->output( $db . "\n" );
-		}
-	}
-
-	/**
-	 * Do all ready periodic jobs for all databases every 5 minutes (and .1% of the time)
-	 * @return int
-	 */
-	private function executeReadyPeriodicTasks() {
-		global $wgLocalDatabases, $wgMemc;
-
-		$count = 0;
-		$memcKey = 'jobqueue:periodic:lasttime';
-		$timestamp = (int)$wgMemc->get( $memcKey ); // UNIX timestamp or 0
-		if ( ( time() - $timestamp ) > 300 || mt_rand( 0, 999 ) == 0 ) { // 5 minutes
-			if ( $wgMemc->add( "$memcKey:rebuild", 1, 1800 ) ) { // lock
-				foreach ( $wgLocalDatabases as $db ) {
-					$count += JobQueueGroup::singleton( $db )->executeReadyPeriodicTasks();
-				}
-				$wgMemc->set( $memcKey, time() );
-				$wgMemc->delete( "$memcKey:rebuild" ); // unlock
-			}
-		}
-
-		return $count;
-	}
-}
-
-$maintClass = "NextJobDb";
-require_once RUN_MAINTENANCE_IF_MAIN;
-- 
2.20.1