Quote from: miningpoolhub on March 15, 2017, 09:07:28 AM

Mining Pool Hub

Hi
This is miningpoolhub operator

Sorry for last server errors.
Currently all pools are working.
Sorry that I couldn't reply to all messages for few hours because I was really busy with pool server configuration.

I think it's better to explain what happened behind the scene.

I had really hard time dealing with Amazon web service's poor I/O performance lately.
It happened few days ago, and it happened again at 13th March.
As I'm also using IOPS service from AWS, pool server's file I/O should perform well because it's guaranteed.

But it didn't.
As I didn't get any reply from last support ticket from amazon, I had nowhere to contact AWS tech team.
I had to change my basic plan to business plan to just phone call AWS staff. It charged $100.
I couldn't understand why I have to pay for their infra problem but anyway I did it because pool was having some trouble and needed to be fixed ASAP.

Some hours of digging the problem and launching several instances, all things were fixed at last.
During that time, some pool's block reward calculation was paused. (Not all but some of them)
That's why you've got no earning transactions for that period.
But I believe eventually all you guys earned because mining was still working and block reward distribution resumed after that issue.

Actually..
There was one more problem at Ethereum pool.
As Ethereum's finding blocks were too many, pool didn't have time to calculate each block reward.

For example, there's 100 blocks to calculate reward. When pool calculates 5 blocks, pool finds 8 blocks during calculation.
This process will never end right?
This slow calculation was because of too heavy loads of database that didn't flush frequently.

I had to deal it immediately so that miners would not angry with me.
So I tweaked some performance dealing points. It seemed to work well... but there were little problem that block reward calculation was doubled for some blocks.

Ethereum block reward is normally 5 ETH, but Pool distributed 10 ETH for some blocks!
Oh my god..

I corrected errors as soon as find the error, but some of you already withdrew it.
This is why some of you got much much more than average daily earnings.
You would have seen some balance going up and down at Ethereum pool due to this error.
This was not manipulation. It was just error correction work from pool.

So, if you've got more than usual, please send it to me.
This is pool's main ETH wallet address.
0xb2930B35844a230f00E51431aCAe96Fe543a0347

12DdmN1y5enL72sN93sisUWQdT1gfF24qj (This is bitcoin address. Send to here in case if you already exchanged it)

I know I can't force someone to refund, but I request it in manner. You may and you may not.
I lost ETH from my pocket

Sorry for all messes lately.
The I/O performance problem is totally fixed and all things are back to normal. I believe there will be no issue like this anymore.

I have been running pool for more than 3 years now.
Pool is like a kid for me. Many times I struggled, and fixed in mud.
Please forgive me for server faults. I do my best, but it was not always perfect because I'm human.

Thanks.

I have a problem in the transfer of my moneros, it has been more than an hour that the system does not remove, in the historical no debit appears and when I try to re-do the transaction the system of the notice that there is already an open order, but nothing happens. User : 2zacminer