Fatal error: Uncaught exception 'RedisException' with message 'read error on connection' in /code/sites/all/modules/contrib/redis/lib/Redis/Client/PhpRedis.php:13
Stack trace:
#0 /code/sites/all/modules/contrib/redis/lib/Redis/Client/PhpRedis.php(13): Redis->auth('0006cc7bf2ce4f8...')
#1 /code/sites/all/modules/contrib/redis/lib/Redis/Client.php(136): Redis_Client_PhpRedis->getClient('10.73.8.120', 11044, NULL, '0006cc7bf2ce4f8...')
#2 /code/sites/all/modules/contrib/redis/lib/Redis/Cache/PhpRedis.php(10): Redis_Client::getClient()
#3 /code/sites/all/modules/contrib/redis/lib/Redis/Cache.php(18): Redis_Cache_PhpRedis->get('variables')
#4 /code/sites/all/modules/contrib/cache_backport/cache.inc(99): Redis_Cache->get('variables')
#5 /code/includes/bootstrap.inc(631): cache_get('variables', 'cache')
#6 /code/includes/bootstrap.inc(1615): variable_init(Array)
#7 /code/includes/bootstrap.inc(1517): _drupal_bootstrap(5)
#8 /code/index.php(15): drupal_bootstrap(8)
#9 {main}
  thrown in /code/sites/all/modules/contrib/redis/lib/Redis/Client/PhpRedis.php on line 13