( ! ) Warning: Search backend error during near_match search for '18.218.121.8' after 16. 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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.0788	3559544	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1311	4387088	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1315	4440968	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1315	4441336	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3022	5803424	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3191	5809656	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3191	5810408	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.3292	5825408	Hooks::run( )	../SearchEngine.php:231
12	0.3292	5827008	call_user_func_array ( )	../Hooks.php:209
13	0.3292	5827712	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.3313	5901760	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.3320	5947800	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3411	6182896	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3413	6214488	PoolCounterWork->execute( )	../Util.php:133
18	0.3414	6238744	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3414	6238928	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3414	6239000	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3414	6240936	PoolCounterWork->execute( )	../Util.php:129
22	0.3414	6241584	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3414	6241768	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3414	6241888	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3579	6356192	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3581	6360128	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3581	6360408	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3582	6361712	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3582	6362104	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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.3612	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.3615	6291824	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3616	6293120	WebResponse->header( )	../OutputPage.php:2134
7	0.3616	6293264	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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.3612	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.3615	6291824	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3622	6301152	WebResponse->header( )	../OutputPage.php:2171
7	0.3622	6301296	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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.3612	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.3615	6291824	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3627	6301096	WebResponse->header( )	../OutputPage.php:2172
7	0.3627	6301240	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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.3612	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.3631	6301096	WebResponse->header( )	../OutputPage.php:2220
6	0.3631	6301240	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	238760	{main}( )	../index.php:0
2	0.0566	3383952	MediaWiki->run( )	../index.php:46
3	0.0567	3385360	MediaWiki->main( )	../MediaWiki.php:424
4	0.3612	6285368	OutputPage->output( )	../MediaWiki.php:583
5	0.3637	6301256	WebResponse->header( )	../OutputPage.php:2227
6	0.3637	6301400	header ( )	../WebResponse.php:37