From 536a812de48e15aed16fe32bb7308a49f57d05df Mon Sep 17 00:00:00 2001
From: Joas Schilling <coding@schilljs.com>
Date: Wed, 1 Dec 2021 23:57:40 +0100
Subject: Add an index for selecting the next job

Signed-off-by: Joas Schilling <coding@schilljs.com>
---
 core/Application.php                               |  7 +++++++
 core/Command/Db/AddMissingIndices.php              | 13 +++++++++++++
 core/Migrations/Version13000Date20170718121200.php |  1 +
 3 files changed, 21 insertions(+)

diff --git a/core/Application.php b/core/Application.php
index d987f7cfb17..4e36d59baac 100644
--- a/core/Application.php
+++ b/core/Application.php
@@ -196,6 +196,13 @@ class Application extends App {
 						$subject->addHintForMissingSubject($table->getName(), 'properties_path_index');
 					}
 				}
+
+				if ($schema->hasTable('jobs')) {
+					$table = $schema->getTable('jobs');
+					if (!$table->hasIndex('job_lastcheck_reserved')) {
+						$subject->addHintForMissingSubject($table->getName(), 'job_lastcheck_reserved');
+					}
+				}
 			}
 		);
 
diff --git a/core/Command/Db/AddMissingIndices.php b/core/Command/Db/AddMissingIndices.php
index 348b4f94f0d..57fa49149f6 100644
--- a/core/Command/Db/AddMissingIndices.php
+++ b/core/Command/Db/AddMissingIndices.php
@@ -326,6 +326,19 @@ class AddMissingIndices extends Command {
 			}
 		}
 
+		$output->writeln('<info>Check indices of the oc_jobs table.</info>');
+		if ($schema->hasTable('jobs')) {
+			$table = $schema->getTable('jobs');
+			if (!$table->hasIndex('job_lastcheck_reserved')) {
+				$output->writeln('<info>Adding job_lastcheck_reserved index to the oc_jobs table, this can take some time...</info>');
+
+				$table->addIndex(['last_checked', 'reserved_at'], 'job_lastcheck_reserved');
+				$this->connection->migrateToSchema($schema->getWrappedSchema());
+				$updated = true;
+				$output->writeln('<info>oc_properties table updated successfully.</info>');
+			}
+		}
+
 		if (!$updated) {
 			$output->writeln('<info>Done.</info>');
 		}
diff --git a/core/Migrations/Version13000Date20170718121200.php b/core/Migrations/Version13000Date20170718121200.php
index 4fa8fb3d1e9..3d97ee1de39 100644
--- a/core/Migrations/Version13000Date20170718121200.php
+++ b/core/Migrations/Version13000Date20170718121200.php
@@ -525,6 +525,7 @@ class Version13000Date20170718121200 extends SimpleMigrationStep {
 			]);
 			$table->setPrimaryKey(['id']);
 			$table->addIndex(['class'], 'job_class_index');
+			$table->addIndex(['last_checked', 'reserved_at'], 'job_lastcheck_reserved');
 		}
 
 		if (!$schema->hasTable('users')) {
-- 
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