( ! ) Warning: Search backend error during near_match search for '18.116.21.152' after 55. Couldn't connect to host, Elasticsearch down? [Called from CirrusSearch\ElasticsearchIntermediary::failure in /var/www/w122_5/extensions/CirrusSearch/includes/ElasticsearchIntermediary.php at line 98] in /var/www/w122_5/includes/debug/MWDebug.php on line 300
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1338	3551928	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3401	4379376	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3406	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3406	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.0478	5796440	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.1517	5802696	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.1517	5803448	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.1901	5818448	Hooks::run( )	../SearchEngine.php:231
12	1.1902	5820048	call_user_func_array ( )	../Hooks.php:209
13	1.1902	5820752	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.1908	5894776	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.1916	5940816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.2561	6175872	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.2564	6207472	PoolCounterWork->execute( )	../Util.php:133
18	1.2566	6231728	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.2566	6231912	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.2566	6231984	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.2566	6233920	PoolCounterWork->execute( )	../Util.php:129
22	1.2566	6234568	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.2566	6234752	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.2567	6234872	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.3120	6349128	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.3121	6353064	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.3121	6353344	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.3122	6354648	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.3122	6355040	trigger_error ( )	../MWDebug.php:300

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.3288	6278360	OutputPage->output( )	../MediaWiki.php:583
5	1.3291	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3292	6286112	WebResponse->header( )	../OutputPage.php:2134
7	1.3292	6286256	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.3288	6278360	OutputPage->output( )	../MediaWiki.php:583
5	1.3291	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3299	6294160	WebResponse->header( )	../OutputPage.php:2171
7	1.3299	6294304	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.3288	6278360	OutputPage->output( )	../MediaWiki.php:583
5	1.3291	6284816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3625	6294104	WebResponse->header( )	../OutputPage.php:2172
7	1.3625	6294248	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.3288	6278360	OutputPage->output( )	../MediaWiki.php:583
5	1.3631	6294104	WebResponse->header( )	../OutputPage.php:2220
6	1.3631	6294248	header ( )	../WebResponse.php:37

( ! ) Warning: Cannot modify header information - headers already sent by (output started at /var/www/w122_5/includes/debug/MWDebug.php:300) in /var/www/w122_5/includes/WebResponse.php on line 37
Call Stack
#	Time	Memory	Function	Location
1	0.0003	233960	{main}( )	../index.php:0
2	0.0612	3376416	MediaWiki->run( )	../index.php:46
3	0.0612	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.3288	6278360	OutputPage->output( )	../MediaWiki.php:583
5	1.3638	6294264	WebResponse->header( )	../OutputPage.php:2227
6	1.3638	6294408	header ( )	../WebResponse.php:37