Support » Plugin: Memcached Object Cache » User cannot authenticate after signup when object cache enabled

  • Resolved


    Ive just upgraded to wordpress 3.5.1 and the new object-cache.php version 2.0.2 that users some new switch to blog cache functionality.

    We had this issue with the previous version of object cache, but i managed to solve it by delete the users keys when doing signup and activation of the blogs. This cleared the cached password from memcache, that for some reason is wrong.

    I tried reimplement this, but it does not work. Ive put this code in my register page:


    the hash is my KEY SALT

    and again on the activation page i use this


    This should clear the cached users and their password, so auth will happens against the password in the mysql database.

    I added theese 2 functions to object-cache.php to handle they key deletion

    #hack by tonny

    function wp_cache_key_delete($key) {
    global $wp_object_cache;

    return $wp_object_cache->key_delete($key);

    and this

    function key_delete($key) {

    $mc =& $this->get_mc($group);

    $result = $mc->delete($key);

    @ ++$this->stats[‘delete’];
    $this->group_ops[$group][] = “delete $id”;

    if ( false !== $result )

    return $result;

    Has any of you had similar issues with users not beging able to login when signing up / registering a blog ?

Viewing 1 replies (of 1 total)
  • This is now solved The solution was this in the activation script:

    $blog_real_id = $wpdb->get_var(“select blog_id from wp_bp_user_blogs where user_id = “.$user_id.” limit 1″);


    This clears the cached user info for blog id 1 and the signed up blog ud.

Viewing 1 replies (of 1 total)
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