Unexpected non-MediaWiki exception encountered, of type &quot;RedisException&quot;<br />
exception 'RedisException' with message 'Connection closed' in /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php:3377<br />
Stack trace:<br />
#0 /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php(3377): session_start()<br />
#1 /var/www/ISWiki/prod/current/lib/includes/specials/SpecialUserlogin.php(151): wfSetupSession()<br />
#2 /var/www/ISWiki/prod/current/lib/includes/SpecialPageFactory.php(476): LoginForm-&gt;execute(NULL)<br />
#3 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(263): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))<br />
#4 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki-&gt;performRequest()<br />
#5 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki-&gt;main()<br />
#6 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki-&gt;run()<br />
#7 {main}<br />
<br />
Next exception 'RedisException' with message 'Connection closed' in /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php:3377<br />
Stack trace:<br />
#0 /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php(0): session_start()<br />
#1 /var/www/ISWiki/prod/current/lib/includes/specials/SpecialUserlogin.php(151): wfSetupSession()<br />
#2 /var/www/ISWiki/prod/current/lib/includes/SpecialPageFactory.php(476): LoginForm-&gt;execute(NULL)<br />
#3 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(263): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))<br />
#4 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki-&gt;performRequest()<br />
#5 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki-&gt;main()<br />
#6 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki-&gt;run()<br />
#7 {main}<br />
<br />
#0 /var/www/ISWiki/prod/current/lib/includes/GlobalFunctions.php(0): session_start()<br />
#1 /var/www/ISWiki/prod/current/lib/includes/specials/SpecialUserlogin.php(151): wfSetupSession()<br />
#2 /var/www/ISWiki/prod/current/lib/includes/SpecialPageFactory.php(476): LoginForm-&gt;execute(NULL)<br />
#3 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(263): SpecialPageFactory::executePath(Object(Title), Object(RequestContext))<br />
#4 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(593): MediaWiki-&gt;performRequest()<br />
#5 /var/www/ISWiki/prod/current/lib/includes/Wiki.php(503): MediaWiki-&gt;main()<br />
#6 /var/www/ISWiki/prod/current/lib/index.php(58): MediaWiki-&gt;run()<br />
#7 {main}<br />