Update (7/24: 4:58 pm PDT, 11:58 pm GMT): We have good news and bad news to 
report on this bug:
- The good news is that we're making progress and the RepDB system has begun to 
catch up.
- The bad news is that at that speed it will take a full week for the system to 
get back completely in synch, and we don't yet have any way to move faster.

The upshot is that the issues described below will continue for another week, 
although gradually fewer and fewer users will be affected by the problem (i.e. 
they will begin to properly appear on the member list, have their subscribes 
and unsubscribed fully processed, etc.).

Meanwhile, it is possible for us to manually bring some groups up to date right 
away (although they will then begin to fall behind again until the system is 
fully caught up, since everything is dealt with sequentially) . If your group 
is being particularly badly affected by this bug, and you would like to be 
manually reset, please contact Customer Care. We will try to help as many 
groups as we can in the short term but can't guarantee we will be able to get 
to everyone before the system is fully caught up anyway.

Our apologies again for the inconvenience.

This blog post was originally titled "New members not showing up on the member 
list", but the problem is actually broader than that and I wanted to take a 
moment to fully explain.

As background, for groups with 350 or more members, Yahoo! Groups uses a 
"replicated database system", which is a key component of the backend systems 
that have allowed Yahoo! Groups to scale to the size it has (100+ million users 
across more than 12 million groups, with some groups having more than a million 
members)

Unfortunately, we have a bug at the moment that is causing our "RepDB system" 
to back up and process incredibly slowly (most affected groups have not had a 
RepDB update since late on the 7/17). The impact on affected groups includes 
the following:

The member list will be out of date with new members not yet appearing on the 
list (though they will appear in the management logs, which are fully up to 
date), making it impossible for moderators to change the settings (or remove) 
these members.
Members who are not showing up on the member list will also not receive 
messages via email (although they can still read messages on the web or post 
via email).
Members who have recently unsubscribed (but who were set to receive individual 
emails or digests) will continue to receive messages from the group until the 
RepDB system is up to date.
Changes to email settings will not take effect.
Members who have been reactivated out of bouncing status will still not get 
email.
Exports from the member list will not be up to date (although "downloads" will 
be).
Apologies for the hassles we know this is causing. Solving this problem is the 
team's top priority.

- Gordon Strause
yahoo groups.--Thanks for your patience in this matter. 
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