( ! ) Warning: Search backend error during near_match search for '3.15.219.58' after 21. 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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0225	3553512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0659	4381120	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0663	4434992	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0663	4435360	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.2398	5798144	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.2678	5803944	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.2679	5804696	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2718	5819696	Hooks::run( )	../SearchEngine.php:231
12	0.2718	5821296	call_user_func_array ( )	../Hooks.php:209
13	0.2718	5822000	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2723	5896032	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2917	5942072	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3046	6177128	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3048	6208712	PoolCounterWork->execute( )	../Util.php:133
18	0.3050	6232968	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3050	6233152	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3050	6233224	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3050	6235160	PoolCounterWork->execute( )	../Util.php:129
22	0.3050	6235808	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3050	6235992	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3050	6236112	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3264	6350360	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3348	6354296	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3348	6354576	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3348	6355880	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3348	6356272	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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.3366	6279584	OutputPage->output( )	../MediaWiki.php:583
5	0.3369	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3370	6287336	WebResponse->header( )	../OutputPage.php:2134
7	0.3370	6287480	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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.3366	6279584	OutputPage->output( )	../MediaWiki.php:583
5	0.3369	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3376	6295368	WebResponse->header( )	../OutputPage.php:2171
7	0.3376	6295512	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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.3366	6279584	OutputPage->output( )	../MediaWiki.php:583
5	0.3369	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3381	6295312	WebResponse->header( )	../OutputPage.php:2172
7	0.3382	6295456	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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.3366	6279584	OutputPage->output( )	../MediaWiki.php:583
5	0.3526	6295312	WebResponse->header( )	../OutputPage.php:2220
6	0.3526	6295456	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	235216	{main}( )	../index.php:0
2	0.0147	3377864	MediaWiki->run( )	../index.php:46
3	0.0147	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.3366	6279584	OutputPage->output( )	../MediaWiki.php:583
5	0.3556	6295472	WebResponse->header( )	../OutputPage.php:2227
6	0.3556	6295616	header ( )	../WebResponse.php:37