( ! ) Warning: Search backend error during near_match search for '18.117.74.231' 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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.0303	3551992	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.0743	4379472	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.0748	4433368	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.0748	4433736	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.2084	5795952	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.2711	5802184	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.2711	5802936	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.2899	5817936	Hooks::run( )	../SearchEngine.php:231
12	0.2899	5819536	call_user_func_array ( )	../Hooks.php:209
13	0.2899	5820240	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.2903	5894288	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.2910	5940312	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.3152	6175416	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.3155	6207008	PoolCounterWork->execute( )	../Util.php:133
18	0.3157	6231264	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.3157	6231448	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.3157	6231520	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.3157	6233456	PoolCounterWork->execute( )	../Util.php:129
22	0.3157	6234104	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.3158	6234288	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.3158	6234408	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.3178	6348648	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.3179	6352584	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.3179	6352864	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.3180	6354168	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.3180	6354560	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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3365	6277848	OutputPage->output( )	../MediaWiki.php:583
5	0.3368	6284304	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3369	6285600	WebResponse->header( )	../OutputPage.php:2134
7	0.3369	6285744	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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3365	6277848	OutputPage->output( )	../MediaWiki.php:583
5	0.3368	6284304	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3376	6293648	WebResponse->header( )	../OutputPage.php:2171
7	0.3376	6293792	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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3365	6277848	OutputPage->output( )	../MediaWiki.php:583
5	0.3368	6284304	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.3381	6293592	WebResponse->header( )	../OutputPage.php:2172
7	0.3381	6293736	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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3365	6277848	OutputPage->output( )	../MediaWiki.php:583
5	0.3385	6293592	WebResponse->header( )	../OutputPage.php:2220
6	0.3385	6293736	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	0.0136	3376416	MediaWiki->run( )	../index.php:46
3	0.0136	3377824	MediaWiki->main( )	../MediaWiki.php:424
4	0.3365	6277848	OutputPage->output( )	../MediaWiki.php:583
5	0.3510	6293752	WebResponse->header( )	../OutputPage.php:2227
6	0.3510	6293896	header ( )	../WebResponse.php:37