diff --git a/typo3/sysext/core/Documentation/Changelog/master/Breaking-82832-UseAtDaemonDroppedFromScheduler.rst b/typo3/sysext/core/Documentation/Changelog/master/Breaking-82832-UseAtDaemonDroppedFromScheduler.rst
new file mode 100644
index 0000000000000000000000000000000000000000..17ea65281ae59787c2099b07b83932c482484a7b
--- /dev/null
+++ b/typo3/sysext/core/Documentation/Changelog/master/Breaking-82832-UseAtDaemonDroppedFromScheduler.rst
@@ -0,0 +1,37 @@
+.. include:: ../../Includes.txt
+
+=======================================================
+Breaking: #82832 - Use at daemon dropped from scheduler
+=======================================================
+
+See :issue:`82832`
+
+Description
+===========
+
+The functionality to execute tasks via the unix "at daemon" (atd)
+has been dropped.
+
+The following method has been dropped:
+* TYPO3\CMS\Scheduler\Scheduler->scheduleNextSchedulerRunUsingAtDaemon()
+
+
+Impact
+======
+
+If this feature has been used, existing tasks may not be executed anymore.
+
+
+Affected Installations
+======================
+
+The feature "useAtdaemon" had to be explicitly enabled in scheduler
+extension configuration. In general it was very sparsely used.
+
+
+Migration
+=========
+
+Switch to cron execution instead.
+
+.. index:: Backend, CLI, PHP-API, PartiallyScanned
\ No newline at end of file
diff --git a/typo3/sysext/install/Configuration/ExtensionScanner/Php/MethodCallMatcher.php b/typo3/sysext/install/Configuration/ExtensionScanner/Php/MethodCallMatcher.php
index ee98199074f21ead870a9dc55256f82bb2f3dd30..2d9e17a2e3cb2ac18e74a0bf330b524fc98a7e2c 100644
--- a/typo3/sysext/install/Configuration/ExtensionScanner/Php/MethodCallMatcher.php
+++ b/typo3/sysext/install/Configuration/ExtensionScanner/Php/MethodCallMatcher.php
@@ -1359,4 +1359,11 @@ return [
'Deprecation-57594-OptimizeReflectionServiceCacheHandling.rst',
],
],
+ 'TYPO3\CMS\Scheduler\Scheduler->scheduleNextSchedulerRunUsingAtDaemon' => [
+ 'numberOfMandatoryArguments' => 0,
+ 'maximumNumberOfArguments' => 0,
+ 'restFiles' => [
+ 'Breaking-82832-UseAtDaemonDroppedFromScheduler.rst',
+ ],
+ ],
];
diff --git a/typo3/sysext/scheduler/Classes/Controller/SchedulerModuleController.php b/typo3/sysext/scheduler/Classes/Controller/SchedulerModuleController.php
index b8fdca28e5fe49bd1f5b05f709c979c408dcee8a..1fc5649fe9bd91cc3f1954dc6dfd3078ec6e1ea1 100644
--- a/typo3/sysext/scheduler/Classes/Controller/SchedulerModuleController.php
+++ b/typo3/sysext/scheduler/Classes/Controller/SchedulerModuleController.php
@@ -841,10 +841,6 @@ class SchedulerModuleController
*/
protected function executeTasks()
{
- // Make sure next automatic scheduler-run is scheduled
- if (GeneralUtility::_POST('go') !== null) {
- $this->scheduler->scheduleNextSchedulerRunUsingAtDaemon();
- }
// Continue if some elements have been chosen for execution
if (isset($this->submittedData['execute']) && !empty($this->submittedData['execute'])) {
// Get list of registered classes
diff --git a/typo3/sysext/scheduler/Classes/Scheduler.php b/typo3/sysext/scheduler/Classes/Scheduler.php
index b0684a38e958a5b8108125eb976af79a783735fb..5d42e145e862a0856da7ea4c2fddf55f04f6ab52 100644
--- a/typo3/sysext/scheduler/Classes/Scheduler.php
+++ b/typo3/sysext/scheduler/Classes/Scheduler.php
@@ -18,9 +18,7 @@ use TYPO3\CMS\Core\Database\Connection;
use TYPO3\CMS\Core\Database\ConnectionPool;
use TYPO3\CMS\Core\Database\Query\QueryHelper;
use TYPO3\CMS\Core\Registry;
-use TYPO3\CMS\Core\Utility\CommandUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
-use TYPO3\CMS\Core\Utility\MathUtility;
/**
* TYPO3 Scheduler. This class handles scheduling and execution of tasks.
@@ -45,9 +43,6 @@ class Scheduler implements \TYPO3\CMS\Core\SingletonInterface
if (empty($this->extConf['maxLifetime'])) {
$this->extConf['maxLifetime'] = 1440;
}
- if (empty($this->extConf['useAtdaemon'])) {
- $this->extConf['useAtdaemon'] = 0;
- }
// Clean up the serialized execution arrays
$this->cleanExecutionArrays();
}
@@ -235,9 +230,6 @@ class Scheduler implements \TYPO3\CMS\Core\SingletonInterface
} else {
$result = false;
}
- if ($result) {
- $this->scheduleNextSchedulerRunUsingAtDaemon();
- }
return $result;
}
@@ -281,9 +273,6 @@ class Scheduler implements \TYPO3\CMS\Core\SingletonInterface
} else {
$result = false;
}
- if ($result) {
- $this->scheduleNextSchedulerRunUsingAtDaemon();
- }
return $result;
}
@@ -464,65 +453,4 @@ class Scheduler implements \TYPO3\CMS\Core\SingletonInterface
$GLOBALS['BE_USER']->writelog(4, 0, $status, 0, '[scheduler]: ' . $code . ' - ' . $message, []);
}
}
-
- /**
- * Schedule the next run of scheduler
- * For the moment only the "at"-daemon is used, and only if it is enabled
- *
- * @return bool Successfully scheduled next execution using "at"-daemon
- * @see tx_scheduler::fetchTask()
- */
- public function scheduleNextSchedulerRunUsingAtDaemon()
- {
- if ((int)$this->extConf['useAtdaemon'] !== 1) {
- return false;
- }
- /** @var $registry Registry */
- $registry = GeneralUtility::makeInstance(Registry::class);
- // Get at job id from registry and remove at job
- $atJobId = $registry->get('tx_scheduler', 'atJobId');
- if (MathUtility::canBeInterpretedAsInteger($atJobId)) {
- shell_exec('atrm ' . (int)$atJobId . ' 2>&1');
- }
- // Can not use fetchTask() here because if tasks have just executed
- // they are not in the list of next executions
- $tasks = $this->fetchTasksWithCondition('');
- $nextExecution = false;
- foreach ($tasks as $task) {
- try {
- /** @var $task Task\AbstractTask */
- $tempNextExecution = $task->getNextDueExecution();
- if ($nextExecution === false || $tempNextExecution < $nextExecution) {
- $nextExecution = $tempNextExecution;
- }
- } catch (\OutOfBoundsException $e) {
- // The event will not be executed again or has already ended - we don't have to consider it for
- // scheduling the next "at" run
- }
- }
- if ($nextExecution !== false) {
- if ($nextExecution > $GLOBALS['EXEC_TIME']) {
- $startTime = strftime('%H:%M %F', $nextExecution);
- } else {
- $startTime = 'now+1minute';
- }
- $cliDispatchPath = PATH_site . 'typo3/sysext/core/bin/typo3';
- list($cliDispatchPathEscaped, $startTimeEscaped) =
- CommandUtility::escapeShellArguments([$cliDispatchPath, $startTime]);
- $cmd = 'echo ' . $cliDispatchPathEscaped . ' scheduler:run | at ' . $startTimeEscaped . ' 2>&1';
- $output = shell_exec($cmd);
- $outputParts = '';
- foreach (explode(LF, $output) as $outputLine) {
- if (GeneralUtility::isFirstPartOfStr($outputLine, 'job')) {
- $outputParts = explode(' ', $outputLine, 3);
- break;
- }
- }
- if ($outputParts[0] === 'job' && MathUtility::canBeInterpretedAsInteger($outputParts[1])) {
- $atJobId = (int)$outputParts[1];
- $registry->set('tx_scheduler', 'atJobId', $atJobId);
- }
- }
- return true;
- }
}
diff --git a/typo3/sysext/scheduler/Resources/Private/Language/locallang_em.xlf b/typo3/sysext/scheduler/Resources/Private/Language/locallang_em.xlf
index fdf862ad3f5bdf4c0578398132bab4922eac0068..1149e579956b8c7d8a8c8820e4fc76ad74c9ba1a 100644
--- a/typo3/sysext/scheduler/Resources/Private/Language/locallang_em.xlf
+++ b/typo3/sysext/scheduler/Resources/Private/Language/locallang_em.xlf
@@ -12,9 +12,6 @@
<trans-unit id="scheduler.config.showSampleTasks">
<source>Enable sample tasks: When turned on, you can use the sample, test tasks provided by the scheduler. Before turning this off, make sure you don't have any of those sample tasks currently scheduled. You will also need to clear the configuration cache.</source>
</trans-unit>
- <trans-unit id="scheduler.config.useAtdaemon">
- <source>Use "at"-daemon: This allows automatic scheduling of the next execution of the scheduler. Your system must have the at daemon installed and configured for the user PHP runs with.</source>
- </trans-unit>
<trans-unit id="scheduler.config.listShowTaskDescriptionAsHover">
<source>Show description of tasks as hover: If disabled descriptions of tasks will be shown below the job-name in the scheduler-list.</source>
</trans-unit>
diff --git a/typo3/sysext/scheduler/ext_conf_template.txt b/typo3/sysext/scheduler/ext_conf_template.txt
index 1bfaf503a3976feeb3124af3cce58808b7002464..a2df31e4827606557226064f2fb2ef34b84c0b07 100644
--- a/typo3/sysext/scheduler/ext_conf_template.txt
+++ b/typo3/sysext/scheduler/ext_conf_template.txt
@@ -6,6 +6,3 @@ enableBELog = 1
# cat=basic//; type=boolean; label=LLL:EXT:scheduler/Resources/Private/Language/locallang_em.xlf:scheduler.config.showSampleTasks
showSampleTasks = 1
-
-# cat=basic//; type=boolean; label=LLL:EXT:scheduler/Resources/Private/Language/locallang_em.xlf:scheduler.config.useAtdaemon
-useAtdaemon = 0