[XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

[xyzzy099]

Why is the block 202kb?

We're kind of stuck on it, transactions are adding up quickly 

I could swear when I was looking at this in the debug window, it said there were 13 transactions, and the block was over 200k, but I just looked in the block explorer, and it only shows one transaction - the coinbase tx.

[mustyoshi]

So the transactions aren't being included into the block even though they are degrading the performance of the miners.

[Lauda]

There appears an issue impacting miner performance when block size is large. I am investigating a workaround right now.

At-least you're here watching and reacting on time.
Something is wrong, please report back once you know more.

[choicatn]

Anyone else having wallet sync issues?

[Lauda]

And we have liftoff people, block has been solved.
I'm now interested, what caused this?

[masterOfDisaster]

Anyone else having wallet sync issues?

Lots of sync issues... Started with block 78414 and continued with most of the succeeding blocks (until 78421 which is the "current" block of my most actual miner). Seems to be related to the size which is > 200k

[loucy]

Miners pulled out?

No. My logfile shows a drastic decline of PPS over the last 45 minutes or so. Plus there's a lot of transactions somewhere. I think we've has slow blocks before, but not *that* slow.

Would be interesting to know if this was a glitch or a deliberate attack...

[FiiNALiZE]

Is everyone here using mikaelh's build?

I haven't tested Sunny's yet but with mikaelh's, my PPS stays at about 100% (~600) for about an hour or so, then rapidly drops down to 10% (~60).

I'll switch one of my miners over to Sunny's build and see if the problem gets solved.

If this bug affects everyone, it could explain why the PPS dropped so much.

[OnlyC]

Is everyone here using mikaelh's build?

I haven't tested Sunny's yet but with mikaelh's, my PPS stays at about 100% (~600) for about an hour or so, then rapidly drops down to 10% (~60).

I'll switch one of my miners over to Sunny's build and see if the problem gets solved.

If this bug affects everyone, it could explain why the PPS dropped so much.

Anyone have that issue, check your currentblocksize, it's too big.

[FiiNALiZE]

Is everyone here using mikaelh's build?

I haven't tested Sunny's yet but with mikaelh's, my PPS stays at about 100% (~600) for about an hour or so, then rapidly drops down to 10% (~60).

I'll switch one of my miners over to Sunny's build and see if the problem gets solved.

If this bug affects everyone, it could explain why the PPS dropped so much.

Anyone have that issue, check your currentblocksize, it's too big.

It's at 202233 right now.

Didn't know blocksize affected PPS but I guess that could explain why.

[AgentME]

All of my miners were showing much lower primespersec values. I restarted all but one. After letting them warm up again, I noticed that the more recently restarted ones had 0 or 1 currentblocktx and a small currentblocksize, and the still slow miner had currentblocktx 9 and currentblocksize > 70000. Now a few minutes later, all of my miners are slow again and back at that point. Maybe those pending transactions contain some sort of denial-of-service attack? (Or maybe they're just unusual but legitimate and the client chokes on them.)

[FiiNALiZE]

All of my miners were showing much lower primespersec values. I restarted all but one. After letting them warm up again, I noticed that the more recently restarted ones had 0 or 1 currentblocktx and a small currentblocksize, and the still slow miner had currentblocktx 9 and currentblocksize > 70000. Now a few minutes later, all of my miners are slow again and back at that point. Maybe those pending transactions contain some sort of denial-of-service attack? (Or maybe they're just unusual but legitimate and the client chokes on them.)

Seems like it.

Jesus blocksize for 78,424 is 202,878 and there are 19 tx.

The block 78414 was listed as having over 10 tx but there is only 1 showing up in the block explorer.

Strange...

[refer_2_me]

All of my miners were showing much lower primespersec values. I restarted all but one. After letting them warm up again, I noticed that the more recently restarted ones had 0 or 1 currentblocktx and a small currentblocksize, and the still slow miner had currentblocktx 9 and currentblocksize > 70000. Now a few minutes later, all of my miners are slow again and back at that point. Maybe those pending transactions contain some sort of denial-of-service attack? (Or maybe they're just unusual but legitimate and the client chokes on them.)

Seems like it.

Jesus blocksize for 78,242 is 202,878 and there are 19 tx.

The block 78414 was listed as having over 10 tx but there is only 1 showing up in the block explorer.

Strange...

block 78,242?
I'm at 78425.

Derp, I forgot how to math. 78425 > 78242.

[mikaelh]

Looks like the bad transactions are still coming in.

Couple of examples that look like the culprits:
4d19a79179e1c8a811241fb990023fa7754ad3856b8b41aef7bd9b5d4c9020f2
e245be126ff2f18496193bf90331de55a5c6645abaed793968a4bf65299e526f

[FiiNALiZE]

All of my miners were showing much lower primespersec values. I restarted all but one. After letting them warm up again, I noticed that the more recently restarted ones had 0 or 1 currentblocktx and a small currentblocksize, and the still slow miner had currentblocktx 9 and currentblocksize > 70000. Now a few minutes later, all of my miners are slow again and back at that point. Maybe those pending transactions contain some sort of denial-of-service attack? (Or maybe they're just unusual but legitimate and the client chokes on them.)

Seems like it.

Jesus blocksize for 78,242 is 202,878 and there are 19 tx.

The block 78414 was listed as having over 10 tx but there is only 1 showing up in the block explorer.

Strange...

block 78,242?
I'm at 78425.

Sorry, block 78,424. It was a typo.

http://primecoin.21stcenturymoneytalk.org/index.php?block_hash=500caad077bcc16b2d92141b46bffe28f17206b5a7d067d2ae9b897391a10495

Definitely something strange going on. Blocksize is only 208 and there are no transactions. They were pushed back to block 78,425

[mikaelh]

The block explorer is still probably a bit buggy in some places. If it's correct for this bit, then someone is sending transactions to transfer batches of 10k XPM.

[FiiNALiZE]

The block explorer is still probably a bit buggy in some places. If it's correct for this bit, then someone is sending transactions to transfer batches of 10k XPM.

Probably a big miner getting ready for his dump.

I'm already seeing 14k+ dumps on mcxnow.com

[AgentME]

Looks like the bad transactions are still coming in.

Couple of examples that look like the culprits:
4d19a79179e1c8a811241fb990023fa7754ad3856b8b41aef7bd9b5d4c9020f2
e245be126ff2f18496193bf90331de55a5c6645abaed793968a4bf65299e526f

Those transactions have of hundreds of inputs, but is that really supposed to be an issue? Does bitcoin handle large transactions like this?

Maybe primecoin is doing something like accidentally hashing the whole block repeatedly somewhere it shouldn't during mining.

[FiiNALiZE]

Looks like the bad transactions are still coming in.

Couple of examples that look like the culprits:
4d19a79179e1c8a811241fb990023fa7754ad3856b8b41aef7bd9b5d4c9020f2
e245be126ff2f18496193bf90331de55a5c6645abaed793968a4bf65299e526f

Those transactions of hundreds of inputs, but is that really supposed to be an issue? Does bitcoin handle large transactions like this?

Maybe primecoin is doing something like accidentally hashing the whole block repeatedly somewhere it shouldn't during mining.

Either someone is moving some epic volume or the network is being attacked to cause panic sells.

[refer_2_me]

Panic selling at mcxnow.com.... Wonder what those miners with 100K+ PPS are gonna do now. haha

Same thing I am. Wait a few hours for it to sort itself out.