( ! ) Warning: Search backend error during near_match search for '18.223.213.66' 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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0174	3551392	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0334	4378920	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0339	4432840	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0339	4433208	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0837	5795592	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0891	5801872	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0892	5802624	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0917	5817624	Hooks::run( )	../SearchEngine.php:231
12	0.0918	5819224	call_user_func_array ( )	../Hooks.php:209
13	0.0918	5819928	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0923	5893960	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0931	5940008	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0964	6175056	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0967	6206640	PoolCounterWork->execute( )	../Util.php:133
18	0.0969	6230896	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0969	6231080	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0969	6231152	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0969	6233088	PoolCounterWork->execute( )	../Util.php:129
22	0.0969	6233736	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0969	6233920	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0969	6234040	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1034	6348168	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1035	6352104	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1036	6352384	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1037	6353688	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1037	6354080	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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1056	6277360	OutputPage->output( )	../MediaWiki.php:583
5	0.1058	6283816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1060	6285112	WebResponse->header( )	../OutputPage.php:2134
7	0.1060	6285256	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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1056	6277360	OutputPage->output( )	../MediaWiki.php:583
5	0.1058	6283816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1066	6293144	WebResponse->header( )	../OutputPage.php:2171
7	0.1066	6293288	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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1056	6277360	OutputPage->output( )	../MediaWiki.php:583
5	0.1058	6283816	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1071	6293088	WebResponse->header( )	../OutputPage.php:2172
7	0.1071	6293232	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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1056	6277360	OutputPage->output( )	../MediaWiki.php:583
5	0.1076	6293088	WebResponse->header( )	../OutputPage.php:2220
6	0.1076	6293232	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	0.0088	3375880	MediaWiki->run( )	../index.php:46
3	0.0088	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.1056	6277360	OutputPage->output( )	../MediaWiki.php:583
5	0.1083	6293248	WebResponse->header( )	../OutputPage.php:2227
6	0.1083	6293392	header ( )	../WebResponse.php:37