( ! ) Warning: Search backend error during near_match search for '18.117.9.37' after 7. 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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.0218	3552816	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0372	4380256	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0377	4434128	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0377	4434496	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0819	5795704	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0872	5801808	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0872	5802560	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0894	5817560	Hooks::run( )	../SearchEngine.php:231
12	0.0895	5819160	call_user_func_array ( )	../Hooks.php:209
13	0.0895	5819864	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0900	5893896	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0908	5939920	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0949	6174968	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0952	6206552	PoolCounterWork->execute( )	../Util.php:133
18	0.0954	6230808	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0954	6230992	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0954	6231064	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0955	6233000	PoolCounterWork->execute( )	../Util.php:129
22	0.0955	6233648	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0955	6233832	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0955	6233952	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1022	6348232	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1023	6352160	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1023	6352440	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1025	6353728	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1025	6354120	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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.1045	6277456	OutputPage->output( )	../MediaWiki.php:583
5	0.1047	6283904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1048	6285200	WebResponse->header( )	../OutputPage.php:2134
7	0.1048	6285344	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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.1045	6277456	OutputPage->output( )	../MediaWiki.php:583
5	0.1047	6283904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1055	6293232	WebResponse->header( )	../OutputPage.php:2171
7	0.1055	6293376	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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.1045	6277456	OutputPage->output( )	../MediaWiki.php:583
5	0.1047	6283904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1060	6293176	WebResponse->header( )	../OutputPage.php:2172
7	0.1060	6293320	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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.1045	6277456	OutputPage->output( )	../MediaWiki.php:583
5	0.1064	6293176	WebResponse->header( )	../OutputPage.php:2220
6	0.1064	6293320	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	0.0001	235184	{main}( )	../index.php:0
2	0.0118	3377288	MediaWiki->run( )	../index.php:46
3	0.0119	3378696	MediaWiki->main( )	../MediaWiki.php:424
4	0.1045	6277456	OutputPage->output( )	../MediaWiki.php:583
5	0.1072	6293328	WebResponse->header( )	../OutputPage.php:2227
6	0.1072	6293472	header ( )	../WebResponse.php:37