Error on the site - 'cache engine is not available' how to solve (bitrix)?

Question

memcached

Hello !
Faced such a problem, stably once a month or even more an error pops up on the site.
Only restarting the server solves the problem. but this is certainly not an option, help me figure it out.

Host: *:443 - UNCAUGHT_EXCEPTION - [ErrorException] E_USER_WARNING
Cache engine is not available (0)
/home/bitrix/ext_www/www/bitrix/modules/main/lib/data/cache.php:131
#0: trigger_error(string , integer)
/home/bitrix/ext_www/www/bitrix/modules/main/lib/data/cache.php:131
#1: Bitrix\Main\Data\Cache::createCacheEngine(array)
/home/bitrix/ext_www/ www/bitrix/modules/main/lib/data/cache.php:155
#2: Bitrix\Main\Data\Cache::createInstance()
/home/bitrix/ext_www/www/bitrix/modules/main/lib/data/managedcache.php:46
#3: Bitrix\Main\Data\ManagedCache->read(integer, string, string)
/home/bitrix/ext_www /www/bitrix/modules/main/lib/config/option.php:176
#4: Bitrix\Main\Config\Option::load(string)
/home/bitrix/ext_www/www/bitrix/modules/main/lib /config/option.php:38
#5: Bitrix\Main\Config\Option::get(string, string, string)
/home/bitrix/ext_www/www/bitrix/modules/main/lib/httprequest.php:392
#6: Bitrix\Main\HttpRequest->prepareCookie(array)
/home/bitrix/ext_www/www/bitrix/modules/main/lib/httprequest.php:69
#7: Bitrix\Main\HttpRequest->__construct(object, array, array, array, array)
/home/bitrix/ext_www/www/bitrix/modules/main/lib/httpapplication.php:46
#8: Bitrix\Main\HttpApplication->initializeContext(array)
/home/bitrix/ext_www/www/bitrix/modules/main /lib/application.php:122
#9: Bitrix\Main\Application->initializeExtendedKernel(array)
/home/bitrix/ext_www/www/bitrix/modules/main/include.php:22
#10: require_once(string)
/ home/bitrix/ext_www/www/bitrix/modules/main/include/prolog_before.php:14
#11: require_once(string)
/home/bitrix/ext_www/www/bitrix/modules/main/include/prolog.php:10
#12: require_once(string)
/home/bitrix/ext_www/www/bitrix/header.php:1
#13: require(string)
/home/bitrix/ext_www/www/catalog/index.php:2
#14: include_once(string)
/home/bitrix/ext_www/www/include/my_urlrewrite.php:159

cache - memcached



The /etc/sysconfig/memcached file has the following parameters:
MAXCONN = "1024"
CACHESIZE="32096"
OPTIONS=" -t 8"