( ! ) Warning: Search backend error during near_match search for '18.116.15.22' 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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0163	3553464	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0310	4380984	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0314	4434856	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0314	4435224	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0734	5798240	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0786	5804424	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0786	5805176	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0809	5820176	Hooks::run( )	../SearchEngine.php:231
12	0.0809	5821776	call_user_func_array ( )	../Hooks.php:209
13	0.0809	5822480	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0815	5896512	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0823	5942560	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0858	6177616	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0860	6209200	PoolCounterWork->execute( )	../Util.php:133
18	0.0861	6233456	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0861	6233640	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0861	6233712	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0861	6235648	PoolCounterWork->execute( )	../Util.php:129
22	0.0861	6236296	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0861	6236480	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0861	6236600	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0927	6350848	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0928	6354784	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0928	6355064	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0929	6356368	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0929	6356760	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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0946	6280080	OutputPage->output( )	../MediaWiki.php:583
5	0.0948	6286536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0949	6287832	WebResponse->header( )	../OutputPage.php:2134
7	0.0949	6287976	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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0946	6280080	OutputPage->output( )	../MediaWiki.php:583
5	0.0948	6286536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0954	6295864	WebResponse->header( )	../OutputPage.php:2171
7	0.0954	6296008	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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0946	6280080	OutputPage->output( )	../MediaWiki.php:583
5	0.0948	6286536	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.0959	6295808	WebResponse->header( )	../OutputPage.php:2172
7	0.0959	6295952	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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0946	6280080	OutputPage->output( )	../MediaWiki.php:583
5	0.0964	6295808	WebResponse->header( )	../OutputPage.php:2220
6	0.0964	6295952	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	235248	{main}( )	../index.php:0
2	0.0087	3377864	MediaWiki->run( )	../index.php:46
3	0.0087	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0946	6280080	OutputPage->output( )	../MediaWiki.php:583
5	0.0970	6295968	WebResponse->header( )	../OutputPage.php:2227
6	0.0970	6296112	header ( )	../WebResponse.php:37