( ! ) Warning: Search backend error during near_match search for '3.21.154.20' after 77. 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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4049	3553512	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.6540	4381120	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.6544	4434992	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.6544	4435360	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.4106	5798144	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.4657	5803944	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.4657	5804696	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.5092	5819696	Hooks::run( )	../SearchEngine.php:231
12	1.5092	5821296	call_user_func_array ( )	../Hooks.php:209
13	1.5092	5822000	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.5097	5896032	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.5160	5942072	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.5896	6177128	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.5898	6208720	PoolCounterWork->execute( )	../Util.php:133
18	1.5899	6232976	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.5899	6233160	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.5899	6233232	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.5899	6235168	PoolCounterWork->execute( )	../Util.php:129
22	1.5900	6235816	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.5900	6236000	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.5900	6236120	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.6674	6350368	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.6675	6354304	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.6675	6354584	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.6676	6355888	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.6676	6356280	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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	1.6998	6279584	OutputPage->output( )	../MediaWiki.php:583
5	1.7000	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7001	6287336	WebResponse->header( )	../OutputPage.php:2134
7	1.7001	6287480	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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	1.6998	6279584	OutputPage->output( )	../MediaWiki.php:583
5	1.7000	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7515	6295368	WebResponse->header( )	../OutputPage.php:2171
7	1.7515	6295512	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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	1.6998	6279584	OutputPage->output( )	../MediaWiki.php:583
5	1.7000	6286040	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.7521	6295312	WebResponse->header( )	../OutputPage.php:2172
7	1.7521	6295456	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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	1.6998	6279584	OutputPage->output( )	../MediaWiki.php:583
5	1.7525	6295312	WebResponse->header( )	../OutputPage.php:2220
6	1.7525	6295456	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	235216	{main}( )	../index.php:0
2	0.1304	3377864	MediaWiki->run( )	../index.php:46
3	0.1304	3379272	MediaWiki->main( )	../MediaWiki.php:424
4	1.6998	6279584	OutputPage->output( )	../MediaWiki.php:583
5	1.7734	6295472	WebResponse->header( )	../OutputPage.php:2227
6	1.7734	6295616	header ( )	../WebResponse.php:37