( ! ) Warning: Search backend error during near_match search for '3.15.144.162' after 6. 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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.0169	3551264	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0320	4378752	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0325	4432672	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0326	4433040	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0802	5794632	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0852	5800888	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0852	5801640	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0874	5816640	Hooks::run( )	../SearchEngine.php:231
12	0.0874	5818240	call_user_func_array ( )	../Hooks.php:209
13	0.0874	5818944	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0880	5892992	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0887	5939032	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0917	6174136	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0920	6206912	PoolCounterWork->execute( )	../Util.php:133
18	0.0922	6231384	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0922	6231568	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0922	6231640	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0922	6233608	PoolCounterWork->execute( )	../Util.php:129
22	0.0922	6234256	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0922	6234440	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0922	6234560	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0987	6348840	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.0988	6352776	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.0988	6353056	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.0989	6354360	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.0989	6354752	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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1005	6277968	OutputPage->output( )	../MediaWiki.php:583
5	0.1006	6284424	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1007	6285720	WebResponse->header( )	../OutputPage.php:2134
7	0.1007	6285864	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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1005	6277968	OutputPage->output( )	../MediaWiki.php:583
5	0.1006	6284424	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1013	6293752	WebResponse->header( )	../OutputPage.php:2171
7	0.1013	6293896	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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1005	6277968	OutputPage->output( )	../MediaWiki.php:583
5	0.1006	6284424	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1018	6293696	WebResponse->header( )	../OutputPage.php:2172
7	0.1018	6293840	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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1005	6277968	OutputPage->output( )	../MediaWiki.php:583
5	0.1024	6293696	WebResponse->header( )	../OutputPage.php:2220
6	0.1024	6293840	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	0.0088	3375864	MediaWiki->run( )	../index.php:46
3	0.0089	3377272	MediaWiki->main( )	../MediaWiki.php:424
4	0.1005	6277968	OutputPage->output( )	../MediaWiki.php:583
5	0.1031	6293856	WebResponse->header( )	../OutputPage.php:2227
6	0.1031	6294000	header ( )	../WebResponse.php:37