( ! ) Warning: Search backend error during near_match search for '18.188.153.121' after 6. 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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0193	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0492	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0496	4433344	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0497	4433712	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1048	5796160	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1125	5802392	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1125	5803144	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.1151	5818136	Hooks::run( )	../SearchEngine.php:231
12	0.1151	5819736	call_user_func_array ( )	../Hooks.php:209
13	0.1151	5820440	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.1156	5894472	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.1163	5940512	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.1191	6175568	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.1194	6207152	PoolCounterWork->execute( )	../Util.php:133
18	0.1195	6231408	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.1195	6231592	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.1195	6231664	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.1195	6233600	PoolCounterWork->execute( )	../Util.php:129
22	0.1195	6234248	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.1195	6234432	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.1195	6234552	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.1259	6348784	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1260	6352720	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1260	6353000	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1261	6354304	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1261	6354696	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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1281	6278000	OutputPage->output( )	../MediaWiki.php:583
5	0.1283	6284456	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1284	6285752	WebResponse->header( )	../OutputPage.php:2134
7	0.1284	6285896	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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1281	6278000	OutputPage->output( )	../MediaWiki.php:583
5	0.1283	6284456	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1291	6293800	WebResponse->header( )	../OutputPage.php:2171
7	0.1291	6293944	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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1281	6278000	OutputPage->output( )	../MediaWiki.php:583
5	0.1283	6284456	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1295	6293744	WebResponse->header( )	../OutputPage.php:2172
7	0.1295	6293888	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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1281	6278000	OutputPage->output( )	../MediaWiki.php:583
5	0.1300	6293744	WebResponse->header( )	../OutputPage.php:2220
6	0.1300	6293888	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	0.0093	3376416	MediaWiki->run( )	../index.php:46
3	0.0093	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1281	6278000	OutputPage->output( )	../MediaWiki.php:583
5	0.1309	6293904	WebResponse->header( )	../OutputPage.php:2227
6	0.1309	6294048	header ( )	../WebResponse.php:37