( ! ) Warning: Search backend error during near_match search for '18.221.147.98' 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	0.0000	233960	{main}( )	../index.php:0
2	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0167	3551392	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0306	4378920	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0310	4432840	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0310	4433208	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0721	5794744	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0771	5801000	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0771	5801752	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0792	5816752	Hooks::run( )	../SearchEngine.php:231
12	0.0792	5818352	call_user_func_array ( )	../Hooks.php:209
13	0.0792	5819056	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0799	5893104	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0808	5939136	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0842	6174240	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0844	6207024	PoolCounterWork->execute( )	../Util.php:133
18	0.0846	6231768	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0846	6231952	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0846	6232024	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0846	6233992	PoolCounterWork->execute( )	../Util.php:129
22	0.0847	6234640	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0847	6234824	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0847	6234944	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0913	6349216	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0915	6353152	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0915	6353432	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0916	6354736	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0916	6355128	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	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0933	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.0935	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0936	6286096	WebResponse->header( )	../OutputPage.php:2134
7	0.0936	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	0.0000	233960	{main}( )	../index.php:0
2	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0933	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.0935	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0942	6294128	WebResponse->header( )	../OutputPage.php:2171
7	0.0942	6294272	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	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0933	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.0935	6284800	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0947	6294072	WebResponse->header( )	../OutputPage.php:2172
7	0.0947	6294216	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	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0933	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.0952	6294072	WebResponse->header( )	../OutputPage.php:2220
6	0.0952	6294216	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	0.0084	3375880	MediaWiki->run( )	../index.php:46
3	0.0084	3377288	MediaWiki->main( )	../MediaWiki.php:424
4	0.0933	6278344	OutputPage->output( )	../MediaWiki.php:583
5	0.0958	6294232	WebResponse->header( )	../OutputPage.php:2227
6	0.0958	6294376	header ( )	../WebResponse.php:37