( ! ) Warning: Search backend error during near_match search for '52.15.111.77' after 20. 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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0813	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2166	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2170	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2171	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.6097	5795872	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.6340	5802128	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.6340	5802880	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.6586	5817880	Hooks::run( )	../SearchEngine.php:231
12	0.6587	5819480	call_user_func_array ( )	../Hooks.php:209
13	0.6587	5820184	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.6592	5894208	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.6601	5940248	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.6818	6175304	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.6823	6206888	PoolCounterWork->execute( )	../Util.php:133
18	0.6825	6231144	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.6825	6231328	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.6825	6231400	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.6828	6233336	PoolCounterWork->execute( )	../Util.php:129
22	0.6828	6233984	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.6828	6234168	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.6828	6234288	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.7043	6348536	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.7045	6352472	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.7045	6352752	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.7046	6354056	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.7046	6354448	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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7089	6277768	OutputPage->output( )	../MediaWiki.php:583
5	0.7091	6284224	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7092	6285520	WebResponse->header( )	../OutputPage.php:2134
7	0.7092	6285664	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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7089	6277768	OutputPage->output( )	../MediaWiki.php:583
5	0.7091	6284224	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7099	6293552	WebResponse->header( )	../OutputPage.php:2171
7	0.7099	6293696	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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7089	6277768	OutputPage->output( )	../MediaWiki.php:583
5	0.7091	6284224	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.7226	6293496	WebResponse->header( )	../OutputPage.php:2172
7	0.7226	6293640	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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7089	6277768	OutputPage->output( )	../MediaWiki.php:583
5	0.7231	6293496	WebResponse->header( )	../OutputPage.php:2220
6	0.7231	6293640	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	0.0158	3376416	MediaWiki->run( )	../index.php:46
3	0.0159	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.7089	6277768	OutputPage->output( )	../MediaWiki.php:583
5	0.7238	6293656	WebResponse->header( )	../OutputPage.php:2227
6	0.7238	6293800	header ( )	../WebResponse.php:37