( ! ) Warning: Search backend error during near_match search for '18.217.189.237' 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	0.0000	233960	{main}( )	../index.php:0
2	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.0601	3551592	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.1470	4379144	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.1473	4433064	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.1474	4433432	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.3317	5795320	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.3462	5801576	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.3462	5802328	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.3486	5817320	Hooks::run( )	../SearchEngine.php:231
12	0.3486	5818920	call_user_func_array ( )	../Hooks.php:209
13	0.3486	5819624	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.3490	5893664	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.3497	5939704	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3525	6174808	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3527	6206392	PoolCounterWork->execute( )	../Util.php:133
18	0.3528	6230648	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3528	6230832	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3528	6230904	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3529	6232840	PoolCounterWork->execute( )	../Util.php:129
22	0.3529	6233488	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3529	6233672	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3529	6233792	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3549	6348008	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3550	6351944	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3551	6352224	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3551	6353528	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3551	6353920	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	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.3568	6277208	OutputPage->output( )	../MediaWiki.php:583
5	0.3607	6283664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3608	6284960	WebResponse->header( )	../OutputPage.php:2134
7	0.3608	6285104	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	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.3568	6277208	OutputPage->output( )	../MediaWiki.php:583
5	0.3607	6283664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3615	6292992	WebResponse->header( )	../OutputPage.php:2171
7	0.3615	6293136	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	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.3568	6277208	OutputPage->output( )	../MediaWiki.php:583
5	0.3607	6283664	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3620	6292936	WebResponse->header( )	../OutputPage.php:2172
7	0.3620	6293080	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	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.3568	6277208	OutputPage->output( )	../MediaWiki.php:583
5	0.3625	6292936	WebResponse->header( )	../OutputPage.php:2220
6	0.3625	6293080	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	0.0250	3376096	MediaWiki->run( )	../index.php:46
3	0.0251	3377504	MediaWiki->main( )	../MediaWiki.php:424
4	0.3568	6277208	OutputPage->output( )	../MediaWiki.php:583
5	0.3631	6293096	WebResponse->header( )	../OutputPage.php:2227
6	0.3631	6293240	header ( )	../WebResponse.php:37