( ! ) Warning: Search backend error during near_match search for '52.15.57.186' 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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0735	3551264	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1403	4378752	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1438	4432672	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1439	4433040	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3961	5794632	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.4218	5800888	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.4218	5801640	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.4422	5816640	Hooks::run( )	../SearchEngine.php:231
12	0.4423	5818240	call_user_func_array ( )	../Hooks.php:209
13	0.4423	5818944	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.4426	5892976	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.4431	5939016	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.4571	6174072	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.4574	6205664	PoolCounterWork->execute( )	../Util.php:133
18	0.4575	6229920	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.4575	6230104	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.4575	6230176	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.4575	6232112	PoolCounterWork->execute( )	../Util.php:129
22	0.4576	6232760	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.4576	6232944	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.4576	6233064	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.4595	6347312	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.4597	6351248	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.4597	6351528	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.4598	6352832	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.4598	6353224	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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4735	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.4737	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4738	6284288	WebResponse->header( )	../OutputPage.php:2134
7	0.4738	6284432	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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4735	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.4737	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4745	6292320	WebResponse->header( )	../OutputPage.php:2171
7	0.4745	6292464	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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4735	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.4737	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.4750	6292264	WebResponse->header( )	../OutputPage.php:2172
7	0.4750	6292408	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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4735	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.4755	6292264	WebResponse->header( )	../OutputPage.php:2220
6	0.4755	6292408	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	233928	{main}( )	../index.php:0
2	0.0237	3375864	MediaWiki->run( )	../index.php:46
3	0.0237	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.4735	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.4761	6292424	WebResponse->header( )	../OutputPage.php:2227
6	0.4761	6292568	header ( )	../WebResponse.php:37