I do have other things like PHP Sessions being cached in another db also using AUTH OK via php.ini:
===
session.save_handler = redis
session.save_path = “tcp://127.0.0.1:6379?database=10&auth=mypass”
===
That all works OK. But for WordPress via plugin I see this in Apache error_log:
===
[01-Mar-2016 21:13:51 UTC] PHP Fatal error: Uncaught exception ‘RedisException’ with message ‘Failed to AUTH connection’ in /home/example/public_html/wp-content/plugins/wp-redis/object-cache.php:939
Stack trace:
#0 [internal function]: Redis->flushAll()
#1 /home/example/public_html/wp-content/plugins/wp-redis/object-cache.php(939): call_user_func_array(Array, Array)
#2 /home/example/public_html/wp-content/plugins/wp-redis/object-cache.php(1047): WP_Object_Cache->_call_redis(‘flushAll’)
#3 /home/example/public_html/wp-content/plugins/wp-redis/object-cache.php(155): WP_Object_Cache->__construct()
#4 /home/example/public_html/wp-includes/load.php(473): wp_cache_init()
#5 /home/example/public_html/wp-settings.php(95): wp_start_object_cache()
#6 /home/example/public_html/wp-config.php(84): require_once(‘/home/example…’)
#7 /home/example/public_html/wp-load.php(37): require_once(‘/home/example…’)
#8 /home/example/public_html/wp-blog-header.php(12): require_once(‘/home/example…’)
#9 /home/example/public_html in /home/example/public_html/wp-content/plugins/wp-redis/object-cache.php on line 939
===
Thanks for any help!