( ! ) Warning: Search backend error during near_match search for '216.73.216.198' after 18. 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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.1053	3957128	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1877	4411968	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1881	4465992	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1881	4466360	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.4878	5810296	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5234	5816512	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5234	5817264	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.5317	5832256	Hooks::run( )	../SearchEngine.php:231
12	0.5317	5833856	call_user_func_array ( )	../Hooks.php:209
13	0.5317	5834560	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.5320	5908640	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.5323	5954664	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.5432	6189728	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.5434	6221312	PoolCounterWork->execute( )	../Util.php:133
18	0.5435	6245568	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.5435	6245752	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.5435	6245824	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.5435	6247760	PoolCounterWork->execute( )	../Util.php:129
22	0.5436	6248408	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.5436	6248592	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.5436	6248712	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.5619	6362968	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.5621	6366928	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.5621	6367208	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.5622	6368512	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.5622	6368904	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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.5640	6292168	OutputPage->output( )	../MediaWiki.php:583
5	0.5642	6298624	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5643	6299920	WebResponse->header( )	../OutputPage.php:2134
7	0.5643	6300064	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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.5640	6292168	OutputPage->output( )	../MediaWiki.php:583
5	0.5642	6298624	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5650	6307952	WebResponse->header( )	../OutputPage.php:2171
7	0.5650	6308096	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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.5640	6292168	OutputPage->output( )	../MediaWiki.php:583
5	0.5642	6298624	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5655	6307896	WebResponse->header( )	../OutputPage.php:2172
7	0.5655	6308040	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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.5640	6292168	OutputPage->output( )	../MediaWiki.php:583
5	0.5660	6307896	WebResponse->header( )	../OutputPage.php:2220
6	0.5660	6308040	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	235872	{main}( )	../index.php:0
2	0.0456	3781672	MediaWiki->run( )	../index.php:46
3	0.0457	3783080	MediaWiki->main( )	../MediaWiki.php:424
4	0.5640	6292168	OutputPage->output( )	../MediaWiki.php:583
5	0.5828	6308056	WebResponse->header( )	../OutputPage.php:2227
6	0.5828	6308200	header ( )	../WebResponse.php:37