( ! ) Warning: Search backend error during near_match search for '3.137.174.147' 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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.1673	3956992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2911	4411760	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2915	4465760	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2916	4466128	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.4871	5809576	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.5042	5815544	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.5042	5816296	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.5128	5831296	Hooks::run( )	../SearchEngine.php:231
12	0.5129	5832896	call_user_func_array ( )	../Hooks.php:209
13	0.5129	5833600	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.5133	5907656	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.5138	5953680	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.5161	6188736	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.5164	6220320	PoolCounterWork->execute( )	../Util.php:133
18	0.5165	6244576	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.5165	6244760	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.5165	6244832	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.5166	6246768	PoolCounterWork->execute( )	../Util.php:129
22	0.5166	6247416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.5166	6247600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.5166	6247720	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.5313	6361976	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.5314	6365912	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.5314	6366192	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.5315	6367496	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.5315	6367888	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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.5341	6291208	OutputPage->output( )	../MediaWiki.php:583
5	0.5344	6297664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5345	6298960	WebResponse->header( )	../OutputPage.php:2134
7	0.5345	6299104	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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.5341	6291208	OutputPage->output( )	../MediaWiki.php:583
5	0.5344	6297664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5352	6306992	WebResponse->header( )	../OutputPage.php:2171
7	0.5352	6307136	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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.5341	6291208	OutputPage->output( )	../MediaWiki.php:583
5	0.5344	6297664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.5357	6306936	WebResponse->header( )	../OutputPage.php:2172
7	0.5357	6307080	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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.5341	6291208	OutputPage->output( )	../MediaWiki.php:583
5	0.5362	6306936	WebResponse->header( )	../OutputPage.php:2220
6	0.5362	6307080	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	235360	{main}( )	../index.php:0
2	0.0618	3781488	MediaWiki->run( )	../index.php:46
3	0.0619	3782896	MediaWiki->main( )	../MediaWiki.php:424
4	0.5341	6291208	OutputPage->output( )	../MediaWiki.php:583
5	0.5368	6307096	WebResponse->header( )	../OutputPage.php:2227
6	0.5368	6307240	header ( )	../WebResponse.php:37