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Commit 9919ccb8 authored by mmn's avatar mmn

HubSub now remembers recent failures and counts them

parent 661930cb
......@@ -57,6 +57,10 @@ class HubSub extends Managed_DataObject
'secret' => array('type' => 'text', 'description' => 'HubSub stored secret'),
'sub_start' => array('type' => 'datetime', 'description' => 'subscription start'),
'sub_end' => array('type' => 'datetime', 'description' => 'subscription end'),
'errors' => array('type' => 'integer', 'not null' => true, 'default' => 0, 'description' => 'Queue handling error count, is reset on success.'),
'error_start' => array('type' => 'datetime', 'default' => null, 'description' => 'time of first error since latest success, should be null if no errors have been counted'),
'last_error' => array('type' => 'datetime', 'default' => null, 'description' => 'time of last failure, if ever'),
'last_error_msg' => array('type' => 'text', 'default' => null, 'description' => 'Last error _message_'),
'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
),
......@@ -68,6 +72,51 @@ class HubSub extends Managed_DataObject
);
}
function getErrors()
{
return intval($this->errors);
}
// $msg is only set if $error_count is 0
function setErrors($error_count, $msg=null)
{
assert(is_int($error_count));
if (!is_int($error_count) || $error_count < 0) {
common_log(LOG_ERR, 'HubSub->setErrors was given a bad value: '._ve($error_count));
throw new ServerException('HubSub error count must be an integer higher or equal to 0.');
}
$orig = clone($this);
$now = common_sql_now();
if ($error_count === 1) {
// Record when the errors started
$this->error_start = $now;
}
if ($error_count > 0) {
// Record this error's occurrence in time
$this->last_error = $now;
$this->last_error_msg = $msg;
} else {
$this->error_start = null;
$this->last_error = null;
$this->last_error_msg = null;
}
$this->errors = $error_count;
$this->update($orig);
}
function resetErrors()
{
return $this->setErrors(0);
}
function incrementErrors($msg=null)
{
return $this->setErrors($this->getErrors()+1, $msg);
}
/**
* Validates a requested lease length, sets length plus
* subscription start & end dates.
......
......@@ -17,9 +17,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('STATUSNET')) {
exit(1);
}
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* Send a raw WebSub push atom update from our internal hub.
......@@ -57,8 +55,19 @@ class HubOutQueueHandler extends QueueHandler
assert($sub instanceof HubSub);
try {
$sub->push($atom);
$success = $sub->push($atom);
// The reason I split these up is because I want to see how the algorithm acts in practice.
if ($success) {
common_debug('HubSub push completed successfully!');
} else {
common_debug('HubSub push failed with an HTTP error.');
}
if ($sub->getErrors()>0) {
common_debug('Resetting HubSub push error count following successful reset.');
$sub->resetErrors();
}
} catch (AlreadyFulfilledException $e) {
// Probably doesn't happen anymore since commit 74a60ab963b5ce1ed95bd81f935a44c573cd0264
common_log(LOG_INFO, "Failed WebSub push to $sub->callback for $sub->topic (".get_class($e)."): " . $e->getMessage());
} catch (Exception $e) {
$retries--;
......@@ -70,6 +79,7 @@ class HubOutQueueHandler extends QueueHandler
// after a delay, use it.
$sub->distribute($atom, $retries);
} else {
$sub->incrementErrors($e->getMessage());
common_log(LOG_ERR, "$msg; discarding");
}
}
......
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