( ! ) Warning: Search backend error during near_match search for '18.188.164.209' after 237. 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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.5074	3551480	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.8809	4379048	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.8981	4432984	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.8981	4433352	SpecialSearch->execute( )	../SpecialPage.php:383
8	2.1785	5794392	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	2.5523	5800648	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	2.5523	5801400	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	2.5852	5816392	Hooks::run( )	../SearchEngine.php:231
12	2.5852	5817992	call_user_func_array ( )	../Hooks.php:209
13	2.5852	5818696	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	2.6189	5892728	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	2.6520	5938760	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	2.6545	6173816	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	2.6547	6205400	PoolCounterWork->execute( )	../Util.php:133
18	2.6548	6229656	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	2.6548	6229840	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	2.6549	6229912	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	2.6549	6231848	PoolCounterWork->execute( )	../Util.php:129
22	2.6549	6232496	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	2.6549	6232680	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	2.6549	6232800	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	2.8922	6347048	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	2.8924	6350984	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	2.8924	6351264	MWDebug::warning( )	../GlobalFunctions.php:1247
28	2.8925	6352568	MWDebug::sendMessage( )	../MWDebug.php:155
29	2.8925	6352960	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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	3.0243	6276264	OutputPage->output( )	../MediaWiki.php:583
5	3.0246	6282720	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	3.0247	6284016	WebResponse->header( )	../OutputPage.php:2134
7	3.0247	6284160	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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	3.0243	6276264	OutputPage->output( )	../MediaWiki.php:583
5	3.0246	6282720	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	3.0254	6292048	WebResponse->header( )	../OutputPage.php:2171
7	3.0254	6292192	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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	3.0243	6276264	OutputPage->output( )	../MediaWiki.php:583
5	3.0246	6282720	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	3.0260	6291992	WebResponse->header( )	../OutputPage.php:2172
7	3.0260	6292136	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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	3.0243	6276264	OutputPage->output( )	../MediaWiki.php:583
5	3.0265	6291992	WebResponse->header( )	../OutputPage.php:2220
6	3.0265	6292136	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	0.0001	233960	{main}( )	../index.php:0
2	0.3468	3375880	MediaWiki->run( )	../index.php:46
3	0.3468	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	3.0243	6276264	OutputPage->output( )	../MediaWiki.php:583
5	3.0271	6292152	WebResponse->header( )	../OutputPage.php:2227
6	3.0271	6292296	header ( )	../WebResponse.php:37