( ! ) Warning: Search backend error during near_match search for '3.21.98.207' 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	233928	{main}( )	../index.php:0
2	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.0416	3551968	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0869	4379424	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0876	4433312	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0876	4433680	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1685	5796240	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1967	5802496	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1967	5803248	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2009	5818248	Hooks::run( )	../SearchEngine.php:231
12	0.2009	5819848	call_user_func_array ( )	../Hooks.php:209
13	0.2009	5820552	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2013	5894600	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2017	5940624	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.2032	6175728	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.2033	6207320	PoolCounterWork->execute( )	../Util.php:133
18	0.2034	6231576	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.2034	6231760	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.2034	6231832	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.2034	6233768	PoolCounterWork->execute( )	../Util.php:129
22	0.2035	6234416	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.2035	6234600	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.2035	6234720	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2188	6348968	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2190	6352904	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2190	6353184	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2190	6354488	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2191	6354880	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	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2209	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.2211	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2212	6285896	WebResponse->header( )	../OutputPage.php:2134
7	0.2212	6286040	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	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2209	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.2211	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2219	6293928	WebResponse->header( )	../OutputPage.php:2171
7	0.2219	6294072	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	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2209	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.2211	6284600	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2224	6293872	WebResponse->header( )	../OutputPage.php:2172
7	0.2224	6294016	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	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2209	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.2229	6293872	WebResponse->header( )	../OutputPage.php:2220
6	0.2229	6294016	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	0.0090	3376408	MediaWiki->run( )	../index.php:46
3	0.0091	3377816	MediaWiki->main( )	../MediaWiki.php:424
4	0.2209	6278144	OutputPage->output( )	../MediaWiki.php:583
5	0.2236	6294032	WebResponse->header( )	../OutputPage.php:2227
6	0.2236	6294176	header ( )	../WebResponse.php:37