[Dailybitcoins.org] Bitcoin faucet, sponsored by ads

[giantdragon]

Daily Bitcoins celebrates
first birthday on July 28!

In this day we will give away whole Bitcoin exactly at the same time, when our first payout was requested a year ago!

[giantdragon]

As experiment, we have started giving away free Bitcoins every hour!

[tosku]

Nice going every hour! Are there any plans to re-instate the possibility to pass along a payout address in the URL?

[giantdragon]

Nice going every hour! Are there any plans to re-instate the possibility to pass along a payout address in the URL?

Give me an example please.

[tosku]

http://dailybitcoins.org/?address=1NUw6fKc6naUprQR6EbqFD6RW93mrrEYGY

Something like that.

[giantdragon]

http://dailybitcoins.org/?address=1NUw6fKc6naUprQR6EbqFD6RW93mrrEYGY

Something like that.

Made!

BTW, cost of the exclusive Operation Fabulous banner on our page reduced twofold to 0.25 BTC/day!

[giantdragon]

We got big ads order recently. Generous payouts will be made today!

[giantdragon]

We are selling 3 free ad slots:
https://bitcointalk.org/index.php?topic=115320.0

[giantdragon]

Payment tracking available!

Now you can to delay payments for any period of time and send them in a bulk at once to minimize transaction fees!

[TravisE]

Cool idea! Something doesn't seem right, though. So far today I requested three payments to address 1AGJBbi3i4YBgG97J9b8p2snRDTEoZNCca. All three times I achieved a 0.0005 BTC prize. It showed up in the quote image, I entered the correct address and captcha as always, and it said success. On the payments page, it incorrectly shows my first prize as the 0.00005 BTC booby; only the second and third are 0.0005 BTC. What happened?

[giantdragon]

Cool idea! Something doesn't seem right, though. So far today I requested three payments to address 1AGJBbi3i4YBgG97J9b8p2snRDTEoZNCca. All three times I achieved a 0.0005 BTC prize. It showed up in the quote image, I entered the correct address and captcha as always, and it said success. On the payments page, it incorrectly shows my first prize as the 0.00005 BTC booby; only the second and third are 0.0005 BTC. What happened?

Do you refreshed page after seen prize? Do you clicked Send button within 2 minutes?
Also provide your payment address please.

[TravisE]

I didn't refresh the page; I stopped as soon as I saw the prize and immediately entered the address and captcha as usual, which would have taken well under two minutes. I'm not sure what happened. A while before that, the site seemed to be slow and having loading issues, but I'm not sure if that would have anything to do with it.

[giantdragon]

A while before that, the site seemed to be slow and having loading issues, but I'm not sure if that would have anything to do with it.

Most probably performance of the MySQL server dropped dramatically for a short time (Daily Bitcoins located on the shared hosting, so it is possible) and queries stayed in queue for a period longer than 2 minutes or even some of them were killed by MySQL due to exceed of max_user_connections limit.

P.S. I am receiving about 1 complaint per month about this issue and have accurately tested the script. There are no bugs.

[brubits]

I really like the site and the newer features.

A few times it has looked like I had successfully won an amount, (>.00005)
but only was awarded the .00005 amount.

I don't have any complaints, I'm just trying to figure out what I did wrong,
I didn't hit refresh and I hit send within two minutes.

If the 'success' message had the 'amount awarded' in it ? and the amount of time it took to send / under 2 minutes?
It might give the users better feedback ?

example:
https://i.imgur.com/mvd8Y.jpg

I was awarded the .00005 amount.

[giantdragon]

brubits, you have checked to delay payments, therefore they were not made yesterday. You need to click "Execute delayed payments" to send them.

If the 'success' message had the 'amount awarded' in it ? and the amount of time it took to send / under 2 minutes?
It might give the users better feedback ?

In 99.9% cases you will receive exact amount displayed on the image. Also you can check it in the Payments page.

[brubits]

Also you can check it in the Payments page.

Yes, that's where I saw that in the .003 example (October 21, 2012, 15:22 UTC-5),
the payments page shows .00005,


Could it be something with Firefox an going to a wallet program to copy my address from?


On October 21, 2012, 16:35 UTC-5 today, what I saw was what I got,)
but I copied the address from a notepad text file.

[giantdragon]

Could it be something with Firefox an going to a wallet program to copy my address from?
but I copied the address from a notepad text file.

There is no difference from which source you are copying an address.

[giantdragon]

Finally I found the reason why some users have not received non-booby prizes.

To show the size of current prize I select it from appropriate table. If it is non-booby, I immediately execute update query, temporarily assigning it to the user who have seen quote. In ideal conditions these 2 queries must be executed sequentially and I assume that delay between them is negligible small that another user would be able to execute SELECT when UPDATE from first user is still not completed. Unfortunatelly with high number of users simultaneously refreshing the page (it can be as much as 50 in peak hours) concurrency issue become real, but chances to be affected with this problem seems to be very small (I am receiving only few complaints per month).

[TravisE]

Maybe you need some type of table locking or queuing mechanism to serialize the access? It just happened again to me just now, this time with a .003 BTC prize. This sounds like something that could get worse the more popular the site gets.

[giantdragon]

A mutex have been implemented in the prize displaying script. Now you guaranteedly will receive the same prize that was displayed on the image.

Feel free to report if problem still persist.