( ! ) Warning: Search backend error during near_match search for '3.144.21.253' after 16. 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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0558	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1004	4379496	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1008	4433376	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1008	4433744	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3405	5795832	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3603	5802088	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3603	5802840	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.3650	5817840	Hooks::run( )	../SearchEngine.php:231
12	0.3650	5819440	call_user_func_array ( )	../Hooks.php:209
13	0.3650	5820144	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.3653	5894168	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.3662	5940216	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3681	6175272	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3683	6206856	PoolCounterWork->execute( )	../Util.php:133
18	0.3684	6231112	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3684	6231296	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3684	6231368	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3684	6233304	PoolCounterWork->execute( )	../Util.php:129
22	0.3684	6233952	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3684	6234136	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3684	6234256	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3843	6348520	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3844	6352456	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3844	6352736	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3846	6354040	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3846	6354432	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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3866	6277736	OutputPage->output( )	../MediaWiki.php:583
5	0.3868	6284192	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3869	6285488	WebResponse->header( )	../OutputPage.php:2134
7	0.3869	6285632	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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3866	6277736	OutputPage->output( )	../MediaWiki.php:583
5	0.3868	6284192	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3963	6293520	WebResponse->header( )	../OutputPage.php:2171
7	0.3963	6293664	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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3866	6277736	OutputPage->output( )	../MediaWiki.php:583
5	0.3868	6284192	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3970	6293464	WebResponse->header( )	../OutputPage.php:2172
7	0.3970	6293608	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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3866	6277736	OutputPage->output( )	../MediaWiki.php:583
5	0.3991	6293464	WebResponse->header( )	../OutputPage.php:2220
6	0.3991	6293608	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	233960	{main}( )	../index.php:0
2	0.0188	3376416	MediaWiki->run( )	../index.php:46
3	0.0188	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3866	6277736	OutputPage->output( )	../MediaWiki.php:583
5	0.3998	6293624	WebResponse->header( )	../OutputPage.php:2227
6	0.3998	6293768	header ( )	../WebResponse.php:37