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The Google Update Schedule Thoughts
Gleaned from datacenter updates
Critter




msg:218271
 3:02 pm on May 17, 2003 (gmt 0)

Hey all:

This is a recap and a prediction topic.

Recall that GG said that the -sj index would move to the other datacenters, then we would see backlinks/spam filters applied across the board.

If this is the case, and if the d.c. datacenter (-dc) just got the -sj index (I saw it bouncing around last night actually); and the cable & wireless (-cw) datacenter got the index on the 15th. *Then* it seems we have 2 days for the index to be propagated to each datacenter (this is a worst-case scenario, as the datacenters may be updated in parallel and may all pop up with the -sj index very shortly).

Since we have 5 datacenters left to go, that brings us 10 days in the future for all datacenters to given the -sj index...which brings us to the 27th. At this time we should see the backlinks/spam filters being applied at every datacenter as deltas/patches (if you will) and the real "dance" will be underway. It will, of course, take considerably less time.

Notice that the prediction of the 27th is, in my opinion, a worst-case scenario; we will most likely see things happen sooner.

Peter

 

Anon27




msg:218541
 4:15 am on May 20, 2003 (gmt 0)

I re-state:

EX and SJ are not just syncing up, they are very much dancing with new SERPS

Helpmebe1




msg:218542
 4:21 am on May 20, 2003 (gmt 0)

just checking in.. obviously google is going through major changes.. I am not even looking until things flatten out and become stable.. then we can knock whats wrong with it once they get their act together. As for google wanting to raise adwords by doing this, I dont by that.. like one said.. if their results are bad, off people go to most likely the new yahoo which will soon roll out or to ATW or wherever.. they will be a thing of yesterday and adwords will drop .. cmon who advertises with AV's colored ads? Sure they look sharp but will you get tons out of it? No..why? noone uses AV these days.. google will become the same victim if they screw things up.... they are free and people like that, and their results have been pretty good..best thing, their free.. its not buy your way to the top... that is what makes google, google. Hopefully they get things back to normal and work things out. Until then.. not looking, why stress yourself out? It wont change anything. Take a breather and enjoy.. then stress or do what you have to if they dont work things out.

As a side note, will their be a deep crawl anytime soon?

Anon27




msg:218543
 4:32 am on May 20, 2003 (gmt 0)

Also, back links are down, on all four servers in Bretts tool. Yahoo! is at 617K on all 4.

steveb




msg:218544
 7:13 am on May 20, 2003 (gmt 0)

"As a side note, will their be a deep crawl anytime soon?"

There may never be a deepcrawl again.

And that is not meant as a joke.

BigDave




msg:218545
 7:49 am on May 20, 2003 (gmt 0)

I have seen several people speculating that the deep crawl/update cycle was going away. Was this something that GG implied or is it just speculation on the part of WW members?

Unless GG said something, I see no indication that it is going away.

steveb




msg:218546
 8:18 am on May 20, 2003 (gmt 0)

"I see no indication that it is going away."

You mean besides the fact that no deepcrawl data since February is being used currently.

BigDave




msg:218547
 8:40 am on May 20, 2003 (gmt 0)

This is all hypothetical. I am just presenting it as a possible option.

Let's suppose that the new algo with major changes needs the index data in an entirely new format. They changed the format with the latest crawl data at the time that they started testing the new algo in February.

Now suppose that the deep crawl develops the equivalent of a diff between the last index and what will be the new index. With the march and april crawls the diff that is developed for the old style index will not apply to the new improved style index.

Google decides that the new algo is a major improvement. They now have a hard choice. Move the new algo with old data, and then get the diffs straightened out. Or they can build and move a whole new index from scratch and still probably end up at least a month behind, due to the complexity of the process.

So they decide to do the massive migration of the old data, and work on getting the diffs to apply to the new format. Depending on how they have the data stored, they may have to develop a March and an April diff, they may be able to do just an April diff, or even jump to a May diff if they decide to do it that way.

Now here is another fun part. This would be the first time applying that diff to the new format. It will have to be tested first, which will make it a slower process than the old updates. It is unknown how much of the 2+ weeks between the deep crawl and the update was required to generate the diff. They may have already started working with the march or april data. We do not know.

So yes, I can easily explain the February data being used for the current update. I may be wrong in the specifics, but this scenario is more likely than never having a deep crawl again.

Critter




msg:218548
 2:58 pm on May 20, 2003 (gmt 0)

Seems -ex has left the party and is back with the old (newer :) index.

Peter

Jakpot




msg:218549
 12:13 pm on May 21, 2003 (gmt 0)

Some results are an improvement

This 279 message thread spans 10 pages: < < 279 ( 1 2 3 4 5 6 7 8 9 [10]
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