( ! ) Warning: Search backend error during near_match search for '18.191.100.41' after 9. 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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0396	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0667	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0671	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0672	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.1567	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.1999	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.1999	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2108	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.2109	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.2109	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2114	5894288	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2123	5940312	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.2215	6175408	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.2218	6206992	PoolCounterWork->execute( )	../Util.php:133
18	0.2220	6231248	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.2220	6231432	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.2220	6231504	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.2220	6233440	PoolCounterWork->execute( )	../Util.php:129
22	0.2220	6234088	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.2220	6234272	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.2220	6234392	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.2314	6348680	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.2315	6352616	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.2315	6352896	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.2317	6354200	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.2317	6354592	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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2335	6277880	OutputPage->output( )	../MediaWiki.php:583
5	0.2337	6284336	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2338	6285632	WebResponse->header( )	../OutputPage.php:2134
7	0.2338	6285776	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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2335	6277880	OutputPage->output( )	../MediaWiki.php:583
5	0.2337	6284336	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2344	6293680	WebResponse->header( )	../OutputPage.php:2171
7	0.2344	6293824	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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2335	6277880	OutputPage->output( )	../MediaWiki.php:583
5	0.2337	6284336	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.2349	6293624	WebResponse->header( )	../OutputPage.php:2172
7	0.2349	6293768	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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2335	6277880	OutputPage->output( )	../MediaWiki.php:583
5	0.2354	6293624	WebResponse->header( )	../OutputPage.php:2220
6	0.2354	6293768	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	0.0089	3376416	MediaWiki->run( )	../index.php:46
3	0.0089	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.2335	6277880	OutputPage->output( )	../MediaWiki.php:583
5	0.2360	6293784	WebResponse->header( )	../OutputPage.php:2227
6	0.2360	6293928	header ( )	../WebResponse.php:37