( ! ) Warning: Search backend error during near_match search for '3.21.246.72' 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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2359	3551968	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.4918	4379424	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.4921	4433312	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.4922	4433680	SpecialSearch->execute( )	../SpecialPage.php:383
8	1.1744	5796240	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	1.2273	5802496	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	1.2273	5803248	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	1.2585	5818248	Hooks::run( )	../SearchEngine.php:231
12	1.2585	5819848	call_user_func_array ( )	../Hooks.php:209
13	1.2585	5820552	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	1.2591	5894600	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	1.2598	5940624	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	1.3187	6175728	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	1.3190	6207320	PoolCounterWork->execute( )	../Util.php:133
18	1.3191	6231576	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	1.3191	6231760	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	1.3191	6231832	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	1.3191	6233768	PoolCounterWork->execute( )	../Util.php:129
22	1.3192	6234416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	1.3192	6234600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	1.3192	6234720	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	1.3213	6348952	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	1.3594	6352880	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	1.3595	6353160	MWDebug::warning( )	../GlobalFunctions.php:1247
28	1.3596	6354448	MWDebug::sendMessage( )	../MWDebug.php:155
29	1.3596	6354840	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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.3687	6278144	OutputPage->output( )	../MediaWiki.php:583
5	1.3689	6284592	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3690	6285888	WebResponse->header( )	../OutputPage.php:2134
7	1.3690	6286032	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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.3687	6278144	OutputPage->output( )	../MediaWiki.php:583
5	1.3689	6284592	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.3696	6293920	WebResponse->header( )	../OutputPage.php:2171
7	1.3696	6294064	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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.3687	6278144	OutputPage->output( )	../MediaWiki.php:583
5	1.3689	6284592	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	1.4347	6293864	WebResponse->header( )	../OutputPage.php:2172
7	1.4347	6294008	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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.3687	6278144	OutputPage->output( )	../MediaWiki.php:583
5	1.4352	6293864	WebResponse->header( )	../OutputPage.php:2220
6	1.4352	6294008	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	0.0288	3376408	MediaWiki->run( )	../index.php:46
3	0.0288	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	1.3687	6278144	OutputPage->output( )	../MediaWiki.php:583
5	1.4359	6294024	WebResponse->header( )	../OutputPage.php:2227
6	1.4359	6294168	header ( )	../WebResponse.php:37