( ! ) Warning: Search backend error during near_match search for '18.219.71.21' 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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0974	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2146	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2151	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2151	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.4915	5795832	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5276	5802088	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5276	5802840	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.5475	5817840	Hooks::run( )	../SearchEngine.php:231
12	0.5476	5819440	call_user_func_array ( )	../Hooks.php:209
13	0.5476	5820144	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.5481	5894184	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.5624	5940232	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.5775	6175336	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.5778	6206928	PoolCounterWork->execute( )	../Util.php:133
18	0.5780	6231184	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.5780	6231368	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.5780	6231440	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.5780	6233376	PoolCounterWork->execute( )	../Util.php:129
22	0.5780	6234024	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.5780	6234208	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.5780	6234328	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.5958	6348560	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.5959	6352496	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.5959	6352776	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.5961	6354080	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.5961	6354472	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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6116	6277760	OutputPage->output( )	../MediaWiki.php:583
5	0.6118	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6119	6285512	WebResponse->header( )	../OutputPage.php:2134
7	0.6119	6285656	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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6116	6277760	OutputPage->output( )	../MediaWiki.php:583
5	0.6118	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6126	6293544	WebResponse->header( )	../OutputPage.php:2171
7	0.6126	6293688	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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6116	6277760	OutputPage->output( )	../MediaWiki.php:583
5	0.6118	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.6203	6293488	WebResponse->header( )	../OutputPage.php:2172
7	0.6203	6293632	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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6116	6277760	OutputPage->output( )	../MediaWiki.php:583
5	0.6208	6293488	WebResponse->header( )	../OutputPage.php:2220
6	0.6208	6293632	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	233960	{main}( )	../index.php:0
2	0.0086	3376416	MediaWiki->run( )	../index.php:46
3	0.0086	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.6116	6277760	OutputPage->output( )	../MediaWiki.php:583
5	0.6267	6293648	WebResponse->header( )	../OutputPage.php:2227
6	0.6267	6293792	header ( )	../WebResponse.php:37