( ! ) Warning: Search backend error during near_match search for '18.116.49.66' after 2. 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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1688	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3518	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3521	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3521	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.9739	5795872	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.0687	5802128	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.0687	5802880	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.0956	5817880	Hooks::run( )	../SearchEngine.php:231
12	1.0957	5819480	call_user_func_array ( )	../Hooks.php:209
13	1.0957	5820184	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.0959	5894208	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.0962	5940248	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.1273	6175256	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.1274	6206864	PoolCounterWork->execute( )	../Util.php:133
18	1.1275	6231120	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.1275	6231304	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.1275	6231376	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.1275	6233312	PoolCounterWork->execute( )	../Util.php:129
22	1.1275	6233960	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.1275	6234144	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.1276	6234264	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.1291	6348544	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.1292	6352480	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.1292	6352760	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.1293	6354064	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.1293	6354456	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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.1309	6277760	OutputPage->output( )	../MediaWiki.php:583
5	1.1800	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1801	6285512	WebResponse->header( )	../OutputPage.php:2134
7	1.1801	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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.1309	6277760	OutputPage->output( )	../MediaWiki.php:583
5	1.1800	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1808	6293544	WebResponse->header( )	../OutputPage.php:2171
7	1.1808	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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.1309	6277760	OutputPage->output( )	../MediaWiki.php:583
5	1.1800	6284216	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1814	6293488	WebResponse->header( )	../OutputPage.php:2172
7	1.1814	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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.1309	6277760	OutputPage->output( )	../MediaWiki.php:583
5	1.1819	6293488	WebResponse->header( )	../OutputPage.php:2220
6	1.1819	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	0.0488	3376416	MediaWiki->run( )	../index.php:46
3	0.0488	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	1.1309	6277760	OutputPage->output( )	../MediaWiki.php:583
5	1.1825	6293648	WebResponse->header( )	../OutputPage.php:2227
6	1.1825	6293792	header ( )	../WebResponse.php:37