( ! ) Warning: Search backend error during near_match search for '3.15.228.4' 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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0181	3552080	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0324	4379568	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0328	4433440	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0328	4433808	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0741	5795664	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0792	5801848	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0792	5802600	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0815	5817600	Hooks::run( )	../SearchEngine.php:231
12	0.0815	5819200	call_user_func_array ( )	../Hooks.php:209
13	0.0815	5819904	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0820	5893896	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0827	5939936	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0859	6174984	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0862	6206592	PoolCounterWork->execute( )	../Util.php:133
18	0.0864	6230848	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0864	6231032	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0864	6231104	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0864	6233040	PoolCounterWork->execute( )	../Util.php:129
22	0.0864	6233688	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0864	6233872	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0864	6233992	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0929	6348272	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0930	6352200	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0930	6352480	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0931	6353768	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0931	6354160	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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0948	6277496	OutputPage->output( )	../MediaWiki.php:583
5	0.0950	6283944	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0951	6285240	WebResponse->header( )	../OutputPage.php:2134
7	0.0951	6285384	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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0948	6277496	OutputPage->output( )	../MediaWiki.php:583
5	0.0950	6283944	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0957	6293272	WebResponse->header( )	../OutputPage.php:2171
7	0.0957	6293416	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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0948	6277496	OutputPage->output( )	../MediaWiki.php:583
5	0.0950	6283944	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0961	6293216	WebResponse->header( )	../OutputPage.php:2172
7	0.0962	6293360	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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0948	6277496	OutputPage->output( )	../MediaWiki.php:583
5	0.0967	6293216	WebResponse->header( )	../OutputPage.php:2220
6	0.0967	6293360	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	233896	{main}( )	../index.php:0
2	0.0107	3376392	MediaWiki->run( )	../index.php:46
3	0.0107	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.0948	6277496	OutputPage->output( )	../MediaWiki.php:583
5	0.0972	6293376	WebResponse->header( )	../OutputPage.php:2227
6	0.0972	6293520	header ( )	../WebResponse.php:37