( ! ) Warning: Search backend error during near_match search for '18.191.154.174' after 2. 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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1756	3551480	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2648	4379048	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2653	4432984	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2653	4433352	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.6089	5794464	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.6421	5800696	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.6421	5801448	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.6538	5816440	Hooks::run( )	../SearchEngine.php:231
12	0.6538	5818040	call_user_func_array ( )	../Hooks.php:209
13	0.6538	5818744	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.6543	5892776	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.6550	5938816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.6860	6173872	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.6863	6205464	PoolCounterWork->execute( )	../Util.php:133
18	0.6865	6229720	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.6865	6229904	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.6865	6229976	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.6865	6231912	PoolCounterWork->execute( )	../Util.php:129
22	0.6865	6232560	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.6865	6232744	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.6865	6232864	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.6888	6347096	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.6889	6351032	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.6889	6351312	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.6890	6352616	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.6891	6353008	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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.7071	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.7073	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7074	6284080	WebResponse->header( )	../OutputPage.php:2134
7	0.7074	6284224	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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.7071	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.7073	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7081	6292112	WebResponse->header( )	../OutputPage.php:2171
7	0.7081	6292256	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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.7071	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.7073	6282784	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7085	6292056	WebResponse->header( )	../OutputPage.php:2172
7	0.7085	6292200	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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.7071	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.7090	6292056	WebResponse->header( )	../OutputPage.php:2220
6	0.7090	6292200	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	0.0673	3375880	MediaWiki->run( )	../index.php:46
3	0.0673	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.7071	6276328	OutputPage->output( )	../MediaWiki.php:583
5	0.7334	6292216	WebResponse->header( )	../OutputPage.php:2227
6	0.7334	6292360	header ( )	../WebResponse.php:37