( ! ) Warning: Search backend error during near_match search for '13.58.161.216' 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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0725	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1081	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1085	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1085	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.4062	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.4508	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.4508	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.4753	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.4753	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.4753	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.4756	5894272	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.4759	5940296	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.4773	6175352	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.4774	6206936	PoolCounterWork->execute( )	../Util.php:133
18	0.4775	6231192	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.4775	6231376	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.4775	6231448	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.4775	6233384	PoolCounterWork->execute( )	../Util.php:129
22	0.4775	6234032	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.4776	6234216	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.4776	6234336	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.4791	6348608	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.4792	6352544	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.4792	6352824	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.4793	6354128	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.4793	6354520	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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4810	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4812	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4813	6285576	WebResponse->header( )	../OutputPage.php:2134
7	0.4813	6285720	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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4810	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4812	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5021	6293624	WebResponse->header( )	../OutputPage.php:2171
7	0.5021	6293768	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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4810	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4812	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5026	6293568	WebResponse->header( )	../OutputPage.php:2172
7	0.5026	6293712	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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4810	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.5031	6293568	WebResponse->header( )	../OutputPage.php:2220
6	0.5031	6293712	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	0.0273	3376416	MediaWiki->run( )	../index.php:46
3	0.0273	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4810	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.5037	6293728	WebResponse->header( )	../OutputPage.php:2227
6	0.5037	6293872	header ( )	../WebResponse.php:37