( ! ) Warning: Search backend error during near_match search for '3.15.3.167' after 36. 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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.0991	3551680	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.3375	4379192	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.3380	4433088	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.3380	4433456	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.7961	5794576	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.8599	5800832	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.8599	5801584	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.8883	5816584	Hooks::run( )	../SearchEngine.php:231
12	0.8884	5818184	call_user_func_array ( )	../Hooks.php:209
13	0.8884	5818888	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.8889	5892896	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.8897	5938920	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.9283	6174024	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.9286	6205608	PoolCounterWork->execute( )	../Util.php:133
18	0.9287	6229864	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.9287	6230048	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.9287	6230120	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.9288	6232056	PoolCounterWork->execute( )	../Util.php:129
22	0.9288	6232704	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.9288	6232888	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.9288	6233008	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.9651	6347240	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.9653	6351168	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.9653	6351448	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.9689	6352736	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.9690	6353128	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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.9723	6276432	OutputPage->output( )	../MediaWiki.php:583
5	0.9725	6282880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.9726	6284176	WebResponse->header( )	../OutputPage.php:2134
7	0.9726	6284320	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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.9723	6276432	OutputPage->output( )	../MediaWiki.php:583
5	0.9725	6282880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.9733	6292208	WebResponse->header( )	../OutputPage.php:2171
7	0.9733	6292352	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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.9723	6276432	OutputPage->output( )	../MediaWiki.php:583
5	0.9725	6282880	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.9738	6292152	WebResponse->header( )	../OutputPage.php:2172
7	0.9738	6292296	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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.9723	6276432	OutputPage->output( )	../MediaWiki.php:583
5	0.9743	6292152	WebResponse->header( )	../OutputPage.php:2220
6	0.9743	6292296	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	0.0326	3376040	MediaWiki->run( )	../index.php:46
3	0.0408	3377448	MediaWiki->main( )	../MediaWiki.php:424
4	0.9723	6276432	OutputPage->output( )	../MediaWiki.php:583
5	0.9749	6292304	WebResponse->header( )	../OutputPage.php:2227
6	0.9749	6292448	header ( )	../WebResponse.php:37