Popular blogging service Tumblr is finally recovering from its seemingly endless downtime. The final tally: over 24 hours, based on the tweet Tumblr sent out around 4PM PST yesterday announcing that it was &''working quickly to recover from a major issue in one of our database clusters.&'' Tumblr followed that up over the ensuing day with some intermittent (and overly optimistic) status updates, and tweeted an hour ago that &''All blogs are online and we&'re incrementally restoring access to the Dashboard.&''

Note that Tumbr isn&'t fully functional yet, as only some users can add content to their sites now. But at least visitors aren&'t getting an error message any more.

Obviously this was a horrible day for the startup, which is raising a big new round of funding led by Sequoia Capital.a4s��It&'s usually a big deal when popular platforms go down for an hour or twoa4s���a4���a4�a4s��I can&'t remember hearing about a site as popular as Tumblr going down for a full day. The site has a famously small headcount �a4���a4�a4s��hopefully the new funding will help it ensure this was a one-time issue.

Tumblr founder David Karp gave this statement about the downtime last night' we&'ll update once the site posts an overview of what happened:

Some scheduled maintenance yesterday that wasn�a4���a4�t intended to interrupt service went haywire and wound up taking down a critical database cluster. Rebuilding the entire cluster has been a painfully slow and manual process, but we�a4���a4�re almost through. We�a4���a4�ll be posting a recap when we�a4���a4�re back up.