( ! ) Warning: Search backend error during near_match search for '3.16.48.5' 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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.0236	3599104	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0398	4412600	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0402	4466576	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0402	4466944	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0834	5794728	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0889	5800936	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0889	5801688	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0917	5816688	Hooks::run( )	../SearchEngine.php:231
12	0.0917	5818288	call_user_func_array ( )	../Hooks.php:209
13	0.0917	5818992	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0923	5893000	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0931	5939024	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0965	6174128	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0968	6206896	PoolCounterWork->execute( )	../Util.php:133
18	0.0969	6231368	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0969	6231552	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0969	6231624	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0970	6233592	PoolCounterWork->execute( )	../Util.php:129
22	0.0970	6234240	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0970	6234424	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0970	6234544	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1036	6348824	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1037	6352776	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1037	6353056	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1038	6354344	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1038	6354736	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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.1062	6277960	OutputPage->output( )	../MediaWiki.php:583
5	0.1064	6284408	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1065	6285704	WebResponse->header( )	../OutputPage.php:2134
7	0.1065	6285848	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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.1062	6277960	OutputPage->output( )	../MediaWiki.php:583
5	0.1064	6284408	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1071	6293736	WebResponse->header( )	../OutputPage.php:2171
7	0.1071	6293880	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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.1062	6277960	OutputPage->output( )	../MediaWiki.php:583
5	0.1064	6284408	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1077	6293680	WebResponse->header( )	../OutputPage.php:2172
7	0.1077	6293824	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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.1062	6277960	OutputPage->output( )	../MediaWiki.php:583
5	0.1081	6293680	WebResponse->header( )	../OutputPage.php:2220
6	0.1081	6293824	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	232152	{main}( )	../index.php:0
2	0.0138	3374048	MediaWiki->run( )	../index.php:46
3	0.0139	3375456	MediaWiki->main( )	../MediaWiki.php:424
4	0.1062	6277960	OutputPage->output( )	../MediaWiki.php:583
5	0.1087	6293832	WebResponse->header( )	../OutputPage.php:2227
6	0.1087	6293976	header ( )	../WebResponse.php:37