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Post# of 216565
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Mattu

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Mattu

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Re: None

Monday, 07/31/2006 6:57:49 PM

Monday, July 31, 2006 6:57:49 PM

Post# of 216565
7/31/06 - iHub Technical Update

We know the site has been peforming very poorly the last week or so and many of you are frustrated. So are we! We use the site just as actively ourselves.

The infrastructure we have in place was enough horsepower for another 20% traffic growth. We were planning to order new equipment later this year. What happened in the last two weeks is we experienced 30-40% growth literally overnight when some competing sites made some changes to the way their sites work. Users were unhapppy and made a quick move over here that overloaded us. It's looking like they're staying too. Do you blame 'em? :)

So, we've been making programming changes trying to help things out, while putting together a plan for our new infrastructure. We've mapped it out and have placed the order for the new equipment.

Until that equipment is delivered and installed (we'll keep the Q&A board updated - #board-504 ), you will likely continue to experience times of slowness and sometimes errors; and some features lagging behind (like the full-text search) or disabled.

We apologize for this, but we've reacted as fast as we possibly could to all this new traffic.

Thanks for hanging in there with us and making iHub the vast, intelligent community it is today....it's only going to get better.


Matt, Bob, and Dave




For a more techincal version, below are some of Bob's comments from today.


The search function is still intact, but we're finding that on the current setup, we simply can't afford to have the system try to maintain the indexes (the mechanism through which posts containing keywords are found) in realtime. So I've temporarily disabled the population of those indexes and will restart them every night and shut them off every morning.

The new database server will be ordered tomorrow and while I'm waiting for it to arrive and be installed I've got a few things to work on to improve efficiency and possibly make realtime indexing possible again either by reducing other workloads on the db server, or moving the indexing/search function to SI's db server, which has plenty of capacity for it.

The new server will definitely help and will make these problems go away completely (for now), especially when we also finally put the new web server into production. But there's still a lot of programming to be done to make sure we're ready to handle another 50% increase in traffic when it happens.

I really got caught flat-footed on this one. I knew that due to organic growth, I needed to do this later this year, but the non-organic growth highlighted that I should've done it long ago so we'd be ready.

Right now, even without the load of full-text indexing, the machines are taking a real beating since it's the busiest part of the trading day.


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