( ! ) Warning: Search backend error during near_match search for '18.191.5.166' after 6. 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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0181	3553464	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0327	4380984	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0331	4434856	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0332	4435224	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0820	5798240	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0893	5804424	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0893	5805176	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0932	5820176	Hooks::run( )	../SearchEngine.php:231
12	0.0933	5821776	call_user_func_array ( )	../Hooks.php:209
13	0.0933	5822480	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0941	5896528	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0955	5942576	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0993	6177680	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0996	6209264	PoolCounterWork->execute( )	../Util.php:133
18	0.0997	6233520	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0997	6233704	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0997	6233776	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0998	6235712	PoolCounterWork->execute( )	../Util.php:129
22	0.0998	6236360	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0998	6236544	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0998	6236664	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1062	6350896	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1064	6354832	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1064	6355112	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1067	6356416	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1067	6356808	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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1086	6280096	OutputPage->output( )	../MediaWiki.php:583
5	0.1089	6286552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1090	6287848	WebResponse->header( )	../OutputPage.php:2134
7	0.1090	6287992	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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1086	6280096	OutputPage->output( )	../MediaWiki.php:583
5	0.1089	6286552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1097	6295880	WebResponse->header( )	../OutputPage.php:2171
7	0.1097	6296024	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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1086	6280096	OutputPage->output( )	../MediaWiki.php:583
5	0.1089	6286552	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1102	6295824	WebResponse->header( )	../OutputPage.php:2172
7	0.1102	6295968	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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1086	6280096	OutputPage->output( )	../MediaWiki.php:583
5	0.1107	6295824	WebResponse->header( )	../OutputPage.php:2220
6	0.1108	6295968	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	0.0000	235248	{main}( )	../index.php:0
2	0.0088	3377864	MediaWiki->run( )	../index.php:46
3	0.0088	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1086	6280096	OutputPage->output( )	../MediaWiki.php:583
5	0.1113	6295984	WebResponse->header( )	../OutputPage.php:2227
6	0.1113	6296128	header ( )	../WebResponse.php:37