( ! ) Warning: Search backend error during near_match search for '18.188.137.209' after 7. 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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0233	3551928	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0424	4379376	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0429	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0429	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0855	5796504	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0908	5802760	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0908	5803512	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0931	5818504	Hooks::run( )	../SearchEngine.php:231
12	0.0931	5820104	call_user_func_array ( )	../Hooks.php:209
13	0.0931	5820808	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0937	5894848	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0945	5940872	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0980	6175976	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0983	6208768	PoolCounterWork->execute( )	../Util.php:133
18	0.0985	6233240	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0985	6233424	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0985	6233496	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0985	6235464	PoolCounterWork->execute( )	../Util.php:129
22	0.0985	6236112	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0985	6236296	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0985	6236416	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1051	6350680	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1053	6354616	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1053	6354896	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1054	6356200	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1054	6356592	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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1072	6279816	OutputPage->output( )	../MediaWiki.php:583
5	0.1075	6286272	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1076	6287568	WebResponse->header( )	../OutputPage.php:2134
7	0.1076	6287712	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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1072	6279816	OutputPage->output( )	../MediaWiki.php:583
5	0.1075	6286272	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1082	6295616	WebResponse->header( )	../OutputPage.php:2171
7	0.1082	6295760	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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1072	6279816	OutputPage->output( )	../MediaWiki.php:583
5	0.1075	6286272	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1087	6295560	WebResponse->header( )	../OutputPage.php:2172
7	0.1087	6295704	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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1072	6279816	OutputPage->output( )	../MediaWiki.php:583
5	0.1091	6295560	WebResponse->header( )	../OutputPage.php:2220
6	0.1091	6295704	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	233960	{main}( )	../index.php:0
2	0.0129	3376416	MediaWiki->run( )	../index.php:46
3	0.0130	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1072	6279816	OutputPage->output( )	../MediaWiki.php:583
5	0.1097	6295720	WebResponse->header( )	../OutputPage.php:2227
6	0.1097	6295864	header ( )	../WebResponse.php:37