( ! ) Warning: Search backend error during near_match search for '18.188.170.199' after 7. 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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0185	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0350	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0356	4433344	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0356	4433712	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.0813	5796160	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.0865	5802392	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.0865	5803144	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.0887	5818136	Hooks::run( )	../SearchEngine.php:231
12	0.0887	5819736	call_user_func_array ( )	../Hooks.php:209
13	0.0887	5820440	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.0893	5894488	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.0899	5940528	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.0928	6175632	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.0931	6208416	PoolCounterWork->execute( )	../Util.php:133
18	0.0933	6232888	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.0933	6233072	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.0933	6233144	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.0933	6235112	PoolCounterWork->execute( )	../Util.php:129
22	0.0933	6235760	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.0933	6235944	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.0933	6236064	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.0998	6350328	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.1000	6354264	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.1000	6354544	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.1001	6355848	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.1001	6356240	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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1019	6279448	OutputPage->output( )	../MediaWiki.php:583
5	0.1021	6285904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1022	6287200	WebResponse->header( )	../OutputPage.php:2134
7	0.1022	6287344	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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1019	6279448	OutputPage->output( )	../MediaWiki.php:583
5	0.1021	6285904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1028	6295248	WebResponse->header( )	../OutputPage.php:2171
7	0.1028	6295392	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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1019	6279448	OutputPage->output( )	../MediaWiki.php:583
5	0.1021	6285904	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.1034	6295192	WebResponse->header( )	../OutputPage.php:2172
7	0.1034	6295336	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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1019	6279448	OutputPage->output( )	../MediaWiki.php:583
5	0.1039	6295192	WebResponse->header( )	../OutputPage.php:2220
6	0.1039	6295336	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	0.0099	3376416	MediaWiki->run( )	../index.php:46
3	0.0100	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.1019	6279448	OutputPage->output( )	../MediaWiki.php:583
5	0.1045	6295352	WebResponse->header( )	../OutputPage.php:2227
6	0.1045	6295496	header ( )	../WebResponse.php:37