( ! ) Warning: Search backend error during near_match search for '18.116.86.255' 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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1901	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1906	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1906	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3785	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3835	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3836	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.3858	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.3858	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.3858	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.3863	5894272	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.3871	5940296	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3911	6175352	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3914	6206936	PoolCounterWork->execute( )	../Util.php:133
18	0.3916	6231192	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3916	6231376	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3916	6231448	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3916	6233384	PoolCounterWork->execute( )	../Util.php:129
22	0.3916	6234032	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3916	6234216	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3916	6234336	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3980	6348592	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3981	6352528	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3981	6352808	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3982	6354112	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3982	6354504	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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3999	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4001	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4002	6285576	WebResponse->header( )	../OutputPage.php:2134
7	0.4002	6285720	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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3999	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4001	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4008	6293624	WebResponse->header( )	../OutputPage.php:2171
7	0.4008	6293768	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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3999	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4001	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4013	6293568	WebResponse->header( )	../OutputPage.php:2172
7	0.4013	6293712	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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3999	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4018	6293568	WebResponse->header( )	../OutputPage.php:2220
6	0.4018	6293712	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	233960	{main}( )	../index.php:0
2	0.0400	3376416	MediaWiki->run( )	../index.php:46
3	0.0400	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3999	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4025	6293728	WebResponse->header( )	../OutputPage.php:2227
6	0.4025	6293872	header ( )	../WebResponse.php:37