( ! ) Warning: Search backend error during near_match search for '18.190.239.40' 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	0.0001	233960	{main}( )	../index.php:0
2	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0196	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0334	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0339	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0339	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0882	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0934	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0934	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0957	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.0957	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.0957	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0960	5894272	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0963	5940296	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0981	6175304	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0983	6206888	PoolCounterWork->execute( )	../Util.php:133
18	0.0984	6231144	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0984	6231328	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0984	6231400	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0985	6233336	PoolCounterWork->execute( )	../Util.php:129
22	0.0985	6233984	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0985	6234168	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0985	6234288	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1045	6348576	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1046	6352512	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1046	6352792	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1047	6354096	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1047	6354488	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	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1066	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.1068	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1069	6285544	WebResponse->header( )	../OutputPage.php:2134
7	0.1069	6285688	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	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1066	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.1068	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1075	6293592	WebResponse->header( )	../OutputPage.php:2171
7	0.1075	6293736	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	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1066	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.1068	6284248	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1080	6293536	WebResponse->header( )	../OutputPage.php:2172
7	0.1080	6293680	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	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1066	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.1085	6293536	WebResponse->header( )	../OutputPage.php:2220
6	0.1085	6293680	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	0.0107	3376416	MediaWiki->run( )	../index.php:46
3	0.0108	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1066	6277792	OutputPage->output( )	../MediaWiki.php:583
5	0.1091	6293696	WebResponse->header( )	../OutputPage.php:2227
6	0.1091	6293840	header ( )	../WebResponse.php:37