( ! ) Warning: Search backend error during near_match search for '3.15.1.129' after 35. 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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	0.1312	3552080	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3400	4379568	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3404	4433440	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3404	4433808	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.9772	5795664	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.0481	5801848	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.0481	5802600	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.0591	5817600	Hooks::run( )	../SearchEngine.php:231
12	1.0591	5819200	call_user_func_array ( )	../Hooks.php:209
13	1.0591	5819904	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.0596	5893912	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.0602	5939952	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.0969	6175056	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.0971	6206640	PoolCounterWork->execute( )	../Util.php:133
18	1.0973	6230896	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.0973	6231080	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.0973	6231152	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.0973	6233088	PoolCounterWork->execute( )	../Util.php:129
22	1.0973	6233736	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.0973	6233920	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.0973	6234040	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.1327	6348272	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.1329	6352200	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.1329	6352480	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.1330	6353768	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.1330	6354160	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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	1.1347	6277464	OutputPage->output( )	../MediaWiki.php:583
5	1.1349	6283912	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1350	6285208	WebResponse->header( )	../OutputPage.php:2134
7	1.1350	6285352	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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	1.1347	6277464	OutputPage->output( )	../MediaWiki.php:583
5	1.1349	6283912	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1356	6293240	WebResponse->header( )	../OutputPage.php:2171
7	1.1356	6293384	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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	1.1347	6277464	OutputPage->output( )	../MediaWiki.php:583
5	1.1349	6283912	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.1361	6293184	WebResponse->header( )	../OutputPage.php:2172
7	1.1361	6293328	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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	1.1347	6277464	OutputPage->output( )	../MediaWiki.php:583
5	1.1849	6293184	WebResponse->header( )	../OutputPage.php:2220
6	1.1849	6293328	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	233896	{main}( )	../index.php:0
2	0.0205	3376392	MediaWiki->run( )	../index.php:46
3	0.0205	3377800	MediaWiki->main( )	../MediaWiki.php:424
4	1.1347	6277464	OutputPage->output( )	../MediaWiki.php:583
5	1.1885	6293344	WebResponse->header( )	../OutputPage.php:2227
6	1.1885	6293488	header ( )	../WebResponse.php:37