more work on queue optimisations

include/deliver.php

@@ -20,6 +20,12 @@ function deliver_run($argv, $argc) {
 			dbesc($argv[$x])
 		);
 		if($r) {
+
+			/**
+			 * Check to see if we have any recent communications with this hub (in the last month).
+			 * If not, reduce the outq_priority.
+			 */
+
 			$h = parse_url($r[0]['outq_posturl']);
 			if($h) {
 				$base = $h['scheme'] . '://' . $h['host'] . (($h['port']) ? ':' . $h['port'] : '');
@@ -38,6 +44,8 @@ function deliver_run($argv, $argc) {
 				}
 			} 
 
+			// "post" queue driver - used for diaspora and friendica-over-diaspora communications.
+
 			if($r[0]['outq_driver'] === 'post') {
 				$result = z_post_url($r[0]['outq_posturl'],$r[0]['outq_msg']); 
 				if($result['success'] && $result['return_code'] < 300) {
@@ -92,9 +100,11 @@ function deliver_run($argv, $argc) {
 				logger('deliver: dest: ' . $r[0]['outq_posturl'], LOGGER_DEBUG);
 				$result = zot_zot($r[0]['outq_posturl'],$r[0]['outq_notify']); 
 				if($result['success']) {
+					logger('deliver: remote zot delivery succeeded to ' . $r[0]['outq_posturl']);
 					zot_process_response($r[0]['outq_posturl'],$result, $r[0]);				
 				}
 				else {
+					logger('deliver: remote zot delivery failed to ' . $r[0]['outq_posturl']);
 					$y = q("update outq set outq_updated = '%s' where outq_hash = '%s'",
 						dbesc(datetime_convert()),
 						dbesc($argv[$x])

include/notifier.php

@@ -135,10 +135,25 @@ function notifier_run($argv, $argc){
 							));
 							if($data) {
 								$result = zot_zot($hh['hubloc_callback'],$data);
-// zot_queue_item is not yet written
-//							if(! $result['success'])
-//								zot_queue_item();
 
+								// if immediate delivery failed, stick it in the queue to try again later.
+
+								if(! $result['success']) {
+									$hash = random_string();
+									q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) 
+										values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )",
+                						dbesc($hash),
+										intval($s[0]['channel_account_id']),
+										intval($s[0]['channel_id']),
+										dbesc('zot'),
+										dbesc($hh['hubloc_callback']),
+										intval(1),
+										dbesc(datetime_convert()),
+										dbesc(datetime_convert()),
+										dbesc($data),
+										dbesc('')
+									);
+								}
 							}
 						}	
 					}

include/queue.php

@@ -46,13 +46,18 @@ function queue_run($argv, $argc){
 		// the site is permanently down, there's no reason to attempt delivery at all, or at most not more than once 
 		// or twice a day. 
 
-
+		// FIXME: can we sort postgres on outq_priority and maintain the 'distinct' ?
+		// The order by max(outq_priority) might be a dodgy query because of the group by.
+		// The desired result is to return a sequence in the order most likely to be delivered in this run.
+		// If a hub has already been sitting in the queue for a few days, they should be delivered last;
+		// hence every failure should drop them further down the priority list.
+ 
 		if(ACTIVE_DBTYPE == DBTYPE_POSTGRES) {
 			$prefix = 'DISTINCT ON (outq_posturl)';
 			$suffix = 'ORDER BY outq_posturl';
 		} else {
 			$prefix = '';
-			$suffix = 'GROUP BY outq_posturl';
+			$suffix = 'GROUP BY outq_posturl ORDER BY max(outq_priority)';
 		}
 		$r = q("SELECT $prefix * FROM outq WHERE outq_delivered = 0 and (( outq_created > %s - INTERVAL %s and outq_updated < %s - INTERVAL %s ) OR ( outq_updated < %s - INTERVAL %s )) $suffix",
 			db_utcnow(), db_quoteinterval('12 HOUR'),
@@ -77,7 +82,7 @@ function queue_run($argv, $argc){
 			}
 			else {
 				logger('queue: queue post returned ' . $result['return_code'] . ' from ' . $rr['outq_posturl'],LOGGER_DEBUG);
-				$y = q("update outq set outq_updated = '%s' where outq_hash = '%s'",
+				$y = q("update outq set outq_updated = '%s', outq_priority = outq_priority + 10 where outq_hash = '%s'",
 					dbesc(datetime_convert()),
 					dbesc($rr['outq_hash'])
 				);
@@ -86,11 +91,13 @@ function queue_run($argv, $argc){
 		}
 		$result = zot_zot($rr['outq_posturl'],$rr['outq_notify']); 
 		if($result['success']) {
+			logger('queue: deliver zot success to ' . $rr['outq_posturl'], LOGGER_DEBUG);			
 			zot_process_response($rr['outq_posturl'],$result, $rr);				
 		}
 		else {
 			$deadguys[] = $rr['outq_posturl'];
-			$y = q("update outq set outq_updated = '%s' where outq_hash = '%s'",
+			logger('queue: deliver zot returned ' . $result['return_code'] . ' from ' . $rr['outq_posturl'],LOGGER_DEBUG);
+			$y = q("update outq set outq_updated = '%s', outq_priority = outq_priority + 10 where outq_hash = '%s'",
 				dbesc(datetime_convert()),
 				dbesc($rr['outq_hash'])
 			);

mod/admin.php

@@ -614,7 +614,7 @@ function admin_page_queue($a) {
 	}
 
 
-	$r = q("select count(outq_posturl) as total, outq_posturl from outq 
+	$r = q("select count(outq_posturl) as total, max(outq_priority) as priority, outq_posturl from outq 
 		where outq_delivered = 0 group by outq_posturl order by total desc");
 
 	for($x = 0; $x < count($r); $x ++) {
@@ -626,6 +626,7 @@ function admin_page_queue($a) {
 	$o = replace_macros(get_markup_template('admin_queue.tpl'), array(
 		'$banner' => t('Queue Statistics'),
 		'$numentries' => t('Total Entries'),
+		'$priority' => t('Priority'),
 		'$desturl' => t('Destination URL'),
 		'$nukehub' => t('Mark hub permanently offline'),
 		'$empty' => t('Empty queue for this hub'),

view/tpl/admin_queue.tpl

@@ -2,11 +2,11 @@
 
 {{if $hasentries}}
 
-<table id="admin-queue-table"><tr><td>{{$numentries}}&nbsp;&nbsp;</td><td>{{$desturl}}</td><td>&nbsp;</td><td>&nbsp;</td></tr>
+<table id="admin-queue-table"><tr><td>{{$numentries}}&nbsp;&nbsp;</td><td>{{$desturl}}</td><td>{{$priority}}</td><td>&nbsp;</td><td>&nbsp;</td></tr>
 
 {{foreach $entries as $e}}
 
-<tr><td>{{$e.total}}</td><td>{{$e.outq_posturl}}</td>{{if $expert}}<td><a href="admin/queue?f=&drophub={{$e.eurl}}" title="{{$nukehub}}" class="btn btn-default"><i class="icon-remove"></i><a></td><td><a href="admin/queue?f=&emptyhub={{$e.eurl}}" title="{{$empty}}" class="btn btn-default"><i class="icon-trash"></i></a></td>{{/if}}</tr>
+<tr><td>{{$e.total}}</td><td>{{$e.outq_posturl}}</td><td>{{$e.priority}}</td>{{if $expert}}<td><a href="admin/queue?f=&drophub={{$e.eurl}}" title="{{$nukehub}}" class="btn btn-default"><i class="icon-remove"></i><a></td><td><a href="admin/queue?f=&emptyhub={{$e.eurl}}" title="{{$empty}}" class="btn btn-default"><i class="icon-trash"></i></a></td>{{/if}}</tr>
 {{/foreach}}
 
 </table>