( ! ) Warning: Search backend error during near_match search for '3.21.105.175' 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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0242	3551960	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0400	4379464	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0404	4433360	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0404	4433728	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0992	5796960	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1066	5802552	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1066	5803304	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1090	5818304	Hooks::run( )	../SearchEngine.php:231
12	0.1090	5819904	call_user_func_array ( )	../Hooks.php:209
13	0.1090	5820608	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1094	5894656	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1104	5940688	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1138	6175792	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1141	6208576	PoolCounterWork->execute( )	../Util.php:133
18	0.1142	6233048	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1142	6233232	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1142	6233304	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1142	6235272	PoolCounterWork->execute( )	../Util.php:129
22	0.1143	6235920	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1143	6236104	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1143	6236224	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1163	6350504	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1164	6354440	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1164	6354720	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1165	6356024	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1165	6356416	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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	6279640	OutputPage->output( )	../MediaWiki.php:583
5	0.1185	6286096	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1186	6287392	WebResponse->header( )	../OutputPage.php:2134
7	0.1186	6287536	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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	6279640	OutputPage->output( )	../MediaWiki.php:583
5	0.1185	6286096	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1192	6295424	WebResponse->header( )	../OutputPage.php:2171
7	0.1192	6295568	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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	6279640	OutputPage->output( )	../MediaWiki.php:583
5	0.1185	6286096	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1197	6295368	WebResponse->header( )	../OutputPage.php:2172
7	0.1197	6295512	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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	6279640	OutputPage->output( )	../MediaWiki.php:583
5	0.1204	6295368	WebResponse->header( )	../OutputPage.php:2220
6	0.1204	6295512	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	0.0001	233960	{main}( )	../index.php:0
2	0.0159	3376416	MediaWiki->run( )	../index.php:46
3	0.0160	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1183	6279640	OutputPage->output( )	../MediaWiki.php:583
5	0.1210	6295528	WebResponse->header( )	../OutputPage.php:2227
6	0.1210	6295672	header ( )	../WebResponse.php:37