( ! ) Warning: Search backend error during near_match search for '18.221.123.73' after 11. 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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.0887	3551600	MediaWiki->performRequest( )	../MediaWiki.php:573
5	0.2507	4379112	SpecialPageFactory::executePath( )	../MediaWiki.php:270
6	0.2511	4433040	SpecialPage->run( )	../SpecialPageFactory.php:581
7	0.2511	4433408	SpecialSearch->execute( )	../SpecialPage.php:383
8	0.7199	5794816	SpecialSearch->goResult( )	../SpecialSearch.php:117
9	0.7743	5800904	SearchEngine::getNearMatch( )	../SpecialSearch.php:188
10	0.7743	5801656	SearchEngine::getNearMatchInternal( )	../SearchEngine.php:139
11	0.7902	5816656	Hooks::run( )	../SearchEngine.php:231
12	0.7903	5818256	call_user_func_array ( )	../Hooks.php:209
13	0.7903	5818960	CirrusSearch\Hooks::onSearchGetNearMatch( )	../Hooks.php:209
14	0.8033	5892992	CirrusSearch\Searcher->nearMatchTitleSearch( )	../Hooks.php:408
15	0.8178	5939016	CirrusSearch\Searcher->search( )	../Searcher.php:268
16	0.8212	6174072	CirrusSearch\Util::doPoolCounterWork( )	../Searcher.php:1079
17	0.8399	6205656	PoolCounterWork->execute( )	../Util.php:133
18	0.8401	6229912	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
19	0.8401	6230096	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
20	0.8401	6230168	CirrusSearch\Util::CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
21	0.8401	6232104	PoolCounterWork->execute( )	../Util.php:129
22	0.8401	6232752	PoolCounterWorkViaCallback->doWork( )	../PoolCounterWork.php:123
23	0.8401	6232936	call_user_func_array ( )	../PoolCounterWorkViaCallback.php:69
24	0.8401	6233056	CirrusSearch\Searcher->CirrusSearch\{closure}( )	../PoolCounterWorkViaCallback.php:69
25	0.8509	6347312	CirrusSearch\ElasticsearchIntermediary->failure( )	../Searcher.php:1063
26	0.8511	6351248	wfLogWarning( )	../ElasticsearchIntermediary.php:98
27	0.8511	6351528	MWDebug::warning( )	../GlobalFunctions.php:1247
28	0.8512	6352832	MWDebug::sendMessage( )	../MWDebug.php:155
29	0.8512	6353224	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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.8767	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.8769	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8770	6284288	WebResponse->header( )	../OutputPage.php:2134
7	0.8770	6284432	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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.8767	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.8769	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.8998	6292320	WebResponse->header( )	../OutputPage.php:2171
7	0.8998	6292464	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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.8767	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.8769	6282992	OutputPage->sendCacheControl( )	../OutputPage.php:2218
6	0.9004	6292264	WebResponse->header( )	../OutputPage.php:2172
7	0.9004	6292408	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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.8767	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.9009	6292264	WebResponse->header( )	../OutputPage.php:2220
6	0.9009	6292408	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	3376112	MediaWiki->run( )	../index.php:46
3	0.0094	3377520	MediaWiki->main( )	../MediaWiki.php:424
4	0.8767	6276536	OutputPage->output( )	../MediaWiki.php:583
5	0.9206	6292424	WebResponse->header( )	../OutputPage.php:2227
6	0.9206	6292568	header ( )	../WebResponse.php:37