/**
* OK here's the situation
*
* Our signal processing stuff is supposed to prevent jobs from being hung in a RUNNING state.
*
* The way this works is that essentially anytime a job is INTERRUPTED un-gracefully, we will just pretend that the job never ran.
* Since it's marked as RUNNING in the DB, this means that we need to update the DB to show it as QUEUED (mulligan retry).
*
* Here's where it gets really ugly. If the signal fires after the data has been applied to the Propel instance, but before it's committed to the DB,
* then it's possible for the software model to be differnt from the DB model in a way that makes the graceful signal handler think that the job's status
* was successfully reported to the DB when it wasn't.
*
* So the graceful signal handler needs to be sure to know what the DB thinks, and to re-queue the job if it's checked out as running.
*
* If propel's instance cache is hit for the job, then you risk the problem that the data from the "get job from DB" will be the not-yet-persisted status
* which would foil the check described above from working. This test just ensures that this isn't broken.
*
*/
function testGracefulRetryDuringSplitBrain()
{
$q = $this->jqStore;
// exit our transaction insanity since abort() inside of gracefullyRetryCurrentJob() needs to actually work
$q->abort();
$this->assertEquals(0, $q->count('test'), "Test database not empty; you should re-initialize the test db.");
$mJob = $q->enqueue(new SampleFailJob());
// mark job as running in DB to simulate a job that's running when interrupted
$mJob->markJobStarted();
// will save to DB
$this->assertEquals(0, $q->count('test', JQManagedJob::STATUS_QUEUED));
// mark job as FAILED on the PROPEL object to create split-brain (DB thinks RUNNING, MEMORY thinks FAILED)
$dbJob = JQStoreManagedJobPeer::retrieveByPK($mJob->getJobId());
$mJob->setStatus(JQManagedJob::STATUS_FAILED);
$dbJob->setStatus(JQManagedJob::STATUS_FAILED);
// attempt to gracefully retry; should mark as queued
$w = new JQWorker($q, array('queueName' => 'test', 'exitIfNoJobs' => true, 'silent' => true, 'enableJitter' => false));
$w->gracefullyRetryCurrentJob($mJob);
$this->assertEquals(1, $q->count('test', JQManagedJob::STATUS_QUEUED));
// cleanup
$q->delete($mJob);
}
/**
* Retrieve multiple objects by pkey.
*
* @param array $pks List of primary keys
* @param PropelPDO $con the connection to use
* @throws PropelException Any exceptions caught during processing will be
* rethrown wrapped into a PropelException.
*/
public static function retrieveByPKs($pks, PropelPDO $con = null)
{
if ($con === null) {
$con = Propel::getConnection(JQStoreManagedJobPeer::DATABASE_NAME, Propel::CONNECTION_READ);
}
$objs = null;
if (empty($pks)) {
$objs = array();
} else {
$criteria = new Criteria(JQStoreManagedJobPeer::DATABASE_NAME);
$criteria->add(JQStoreManagedJobPeer::JOB_ID, $pks, Criteria::IN);
$objs = JQStoreManagedJobPeer::doSelect($criteria, $con);
}
return $objs;
}
/**
* Find object by primary key using raw SQL to go fast.
* Bypass doSelect() and the object formatter by using generated code.
*
* @param mixed $key Primary key to use for the query
* @param PropelPDO $con A connection object
*
* @return JQStoreManagedJob A model object, or null if the key is not found
*/
protected function findPkSimple($key, $con)
{
$sql = 'SELECT ATTEMPT_NUMBER, COALESCE_ID, CREATION_DTS, END_DTS, ERROR_MESSAGE, JOB, JOB_ID, MAX_ATTEMPTS, MAX_RUNTIME_SECONDS, PRIORITY, QUEUE_NAME, START_DTS, STATUS FROM jqstore_managed_job WHERE JOB_ID = :p0';
try {
$stmt = $con->prepare($sql);
$stmt->bindValue(':p0', $key, PDO::PARAM_INT);
$stmt->execute();
} catch (Exception $e) {
Propel::log($e->getMessage(), Propel::LOG_ERR);
throw new PropelException(sprintf('Unable to execute SELECT statement [%s]', $sql), $e);
}
$obj = null;
if ($row = $stmt->fetch(PDO::FETCH_NUM)) {
$obj = new JQStoreManagedJob();
$obj->hydrate($row);
JQStoreManagedJobPeer::addInstanceToPool($obj, (string) $row[0]);
}
$stmt->closeCursor();
return $obj;
}
/**
* Populates the object using an array.
*
* This is particularly useful when populating an object from one of the
* request arrays (e.g. $_POST). This method goes through the column
* names, checking to see whether a matching key exists in populated
* array. If so the setByName() method is called for that column.
*
* You can specify the key type of the array by additionally passing one
* of the class type constants BasePeer::TYPE_PHPNAME, BasePeer::TYPE_STUDLYPHPNAME,
* BasePeer::TYPE_COLNAME, BasePeer::TYPE_FIELDNAME, BasePeer::TYPE_NUM.
* The default key type is the column's phpname (e.g. 'AuthorId')
*
* @param array $arr An array to populate the object from.
* @param string $keyType The type of keys the array uses.
* @return void
*/
public function fromArray($arr, $keyType = BasePeer::TYPE_PHPNAME)
{
$keys = JQStoreManagedJobPeer::getFieldNames($keyType);
if (array_key_exists($keys[0], $arr)) {
$this->setAttemptNumber($arr[$keys[0]]);
}
if (array_key_exists($keys[1], $arr)) {
$this->setCoalesceId($arr[$keys[1]]);
}
if (array_key_exists($keys[2], $arr)) {
$this->setCreationDts($arr[$keys[2]]);
}
if (array_key_exists($keys[3], $arr)) {
$this->setEndDts($arr[$keys[3]]);
}
if (array_key_exists($keys[4], $arr)) {
$this->setErrorMessage($arr[$keys[4]]);
}
if (array_key_exists($keys[5], $arr)) {
$this->setJob($arr[$keys[5]]);
}
if (array_key_exists($keys[6], $arr)) {
$this->setJobId($arr[$keys[6]]);
}
if (array_key_exists($keys[7], $arr)) {
$this->setMaxAttempts($arr[$keys[7]]);
}
if (array_key_exists($keys[8], $arr)) {
$this->setMaxRuntimeSeconds($arr[$keys[8]]);
}
if (array_key_exists($keys[9], $arr)) {
$this->setPriority($arr[$keys[9]]);
}
if (array_key_exists($keys[10], $arr)) {
$this->setQueueName($arr[$keys[10]]);
}
if (array_key_exists($keys[11], $arr)) {
$this->setStartDts($arr[$keys[11]]);
}
if (array_key_exists($keys[12], $arr)) {
$this->setStatus($arr[$keys[12]]);
}
}
