( ! ) Warning: Search backend error during near_match search for '18.220.4.126' after 2. 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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.0921	3551512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1681	4379208	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1685	4433096	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1685	4433464	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.5366	5795064	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5899	5801320	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5899	5802072	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.6055	5817072	Hooks::run( )	../SearchEngine.php:231
12	0.6055	5818672	call_user_func_array ( )	../Hooks.php:209
13	0.6055	5819376	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.6060	5893416	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.6068	5939448	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.6282	6174552	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.6390	6206160	PoolCounterWork->execute( )	../Util.php:133
18	0.6392	6230416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.6392	6230600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.6392	6230672	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.6393	6232608	PoolCounterWork->execute( )	../Util.php:129
22	0.6393	6233256	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.6393	6233440	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.6393	6233560	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.6415	6347792	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.6417	6351728	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.6417	6352008	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.6418	6353312	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.6418	6353704	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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6666	6276984	OutputPage->output( )	../MediaWiki.php:583
5	0.6668	6283440	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6669	6284736	WebResponse->header( )	../OutputPage.php:2134
7	0.6669	6284880	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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6666	6276984	OutputPage->output( )	../MediaWiki.php:583
5	0.6668	6283440	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6677	6292768	WebResponse->header( )	../OutputPage.php:2171
7	0.6677	6292912	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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6666	6276984	OutputPage->output( )	../MediaWiki.php:583
5	0.6668	6283440	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6681	6292712	WebResponse->header( )	../OutputPage.php:2172
7	0.6681	6292856	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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6666	6276984	OutputPage->output( )	../MediaWiki.php:583
5	0.6687	6292712	WebResponse->header( )	../OutputPage.php:2220
6	0.6687	6292856	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	233928	{main}( )	../index.php:0
2	0.0101	3376040	MediaWiki->run( )	../index.php:46
3	0.0101	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.6666	6276984	OutputPage->output( )	../MediaWiki.php:583
5	0.6693	6292872	WebResponse->header( )	../OutputPage.php:2227
6	0.6693	6293016	header ( )	../WebResponse.php:37