( ! ) Warning: Search backend error during near_match search for '18.221.172.50' 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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.0225	3553304	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0369	4380856	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0373	4434768	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0374	4435136	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0788	5797352	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0838	5803608	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0838	5804360	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0861	5819360	Hooks::run( )	../SearchEngine.php:231
12	0.0861	5820960	call_user_func_array ( )	../Hooks.php:209
13	0.0861	5821664	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0866	5895696	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0874	5941720	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0906	6176824	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0909	6208432	PoolCounterWork->execute( )	../Util.php:133
18	0.0910	6232688	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0910	6232872	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0910	6232944	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0911	6234880	PoolCounterWork->execute( )	../Util.php:129
22	0.0911	6235528	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0911	6235712	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0911	6235832	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0975	6350120	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0977	6354056	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0977	6354336	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0978	6355640	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0978	6356032	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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.1007	6279320	OutputPage->output( )	../MediaWiki.php:583
5	0.1010	6285776	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1011	6287072	WebResponse->header( )	../OutputPage.php:2134
7	0.1011	6287216	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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.1007	6279320	OutputPage->output( )	../MediaWiki.php:583
5	0.1010	6285776	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1017	6295104	WebResponse->header( )	../OutputPage.php:2171
7	0.1017	6295248	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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.1007	6279320	OutputPage->output( )	../MediaWiki.php:583
5	0.1010	6285776	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1022	6295048	WebResponse->header( )	../OutputPage.php:2172
7	0.1022	6295192	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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.1007	6279320	OutputPage->output( )	../MediaWiki.php:583
5	0.1027	6295048	WebResponse->header( )	../OutputPage.php:2220
6	0.1027	6295192	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	0.0002	235248	{main}( )	../index.php:0
2	0.0131	3377848	MediaWiki->run( )	../index.php:46
3	0.0132	3379256	MediaWiki->main( )	../MediaWiki.php:424
4	0.1007	6279320	OutputPage->output( )	../MediaWiki.php:583
5	0.1033	6295208	WebResponse->header( )	../OutputPage.php:2227
6	0.1033	6295352	header ( )	../WebResponse.php:37