( ! ) Warning: Search backend error during near_match search for '3.142.166.186' after 15. 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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0730	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1441	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1446	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1446	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3971	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.4192	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.4192	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.4287	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.4287	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.4287	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.4293	5894272	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.4301	5940296	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.4557	6175352	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.4559	6206936	PoolCounterWork->execute( )	../Util.php:133
18	0.4561	6231192	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.4561	6231376	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.4561	6231448	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.4561	6233384	PoolCounterWork->execute( )	../Util.php:129
22	0.4562	6234032	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.4562	6234216	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.4562	6234336	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.4711	6348592	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.4712	6352528	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.4712	6352808	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.4713	6354112	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.4713	6354504	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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4733	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4735	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4736	6285576	WebResponse->header( )	../OutputPage.php:2134
7	0.4736	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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4733	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4735	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4743	6293624	WebResponse->header( )	../OutputPage.php:2171
7	0.4743	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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4733	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4735	6284280	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4748	6293568	WebResponse->header( )	../OutputPage.php:2172
7	0.4748	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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4733	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4753	6293568	WebResponse->header( )	../OutputPage.php:2220
6	0.4753	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	0.0105	3376416	MediaWiki->run( )	../index.php:46
3	0.0106	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.4733	6277824	OutputPage->output( )	../MediaWiki.php:583
5	0.4906	6293728	WebResponse->header( )	../OutputPage.php:2227
6	0.4907	6293872	header ( )	../WebResponse.php:37