( ! ) Warning: Search backend error during near_match search for '18.191.55.227' 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	0.0001	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1269	3551928	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2087	4379376	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2093	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2093	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.4512	5796440	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5476	5802696	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5476	5803448	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.5626	5818448	Hooks::run( )	../SearchEngine.php:231
12	0.5627	5820048	call_user_func_array ( )	../Hooks.php:209
13	0.5627	5820752	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.5629	5894776	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.5633	5940816	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.5691	6175872	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.5693	6207456	PoolCounterWork->execute( )	../Util.php:133
18	0.5694	6231712	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.5694	6231896	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.5694	6231968	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.5694	6233904	PoolCounterWork->execute( )	../Util.php:129
22	0.5694	6234552	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.5694	6234736	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.5695	6234856	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.5902	6349128	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.5904	6353064	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.5904	6353344	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.5905	6354648	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.5905	6355040	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	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6100	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.6179	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6190	6286096	WebResponse->header( )	../OutputPage.php:2134
7	0.6190	6286240	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	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6100	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.6179	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6291	6294144	WebResponse->header( )	../OutputPage.php:2171
7	0.6291	6294288	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	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6100	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.6179	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6389	6294088	WebResponse->header( )	../OutputPage.php:2172
7	0.6389	6294232	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	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6100	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.6395	6294088	WebResponse->header( )	../OutputPage.php:2220
6	0.6395	6294232	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	233960	{main}( )	../index.php:0
2	0.0764	3376416	MediaWiki->run( )	../index.php:46
3	0.0765	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6100	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.6442	6294248	WebResponse->header( )	../OutputPage.php:2227
6	0.6442	6294392	header ( )	../WebResponse.php:37