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Author Topic: New Ixcoin fork -> I0coin  (Read 204581 times)
doublec
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May 26, 2012, 11:45:52 AM
 #1661

Anyone see a big chain rollback on i0coin today? I have two nodes that saw it and crashed due to out of memory from the reorg.
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kjlimo
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May 26, 2012, 01:28:15 PM
 #1662

Anyone see a big chain rollback on i0coin today? I have two nodes that saw it and crashed due to out of memory from the reorg.

The network hashrate on vircurex is 35 Ghash/sec.  Maybe all the miners are crashing?

Might be a good idea to halt all I0coin transactions until this is figured out.

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Tittiez
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May 27, 2012, 12:21:13 AM
 #1663

Yeah Bitparking has:

Quote
2012-05-26: i0coin is temporarily disabled due to issues with the i0coin chain. I'm investigating and will reenable when it's working again.

That in the news. Looks like there will be an update to the i0coin daemon/client soon.
Kumala
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May 27, 2012, 02:36:52 AM
 #1664

Same here, several larger transactions are not getting any confirmations, have been sitting around for hours still showing 0 confirmations but subsequent smaller transactions are being process correctly. So what happens to those "old" transactions with 0 confirmations?
doublec
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May 27, 2012, 05:07:42 AM
 #1665

Same here, several larger transactions are not getting any confirmations, have been sitting around for hours still showing 0 confirmations but subsequent smaller transactions are being process correctly. So what happens to those "old" transactions with 0 confirmations?
It sounds like those transactions got rolled back in the chain reorg. They will never confirm if so and will always remain. It's the same thing that happened when my original i0coin exchange got double spent. I think the vircurex exchange owner will need to check their exchange transactions to see if there are any 0 confirms stuck.

kr105, is there anything in the new client that could be related to this? Or is it just a malicious rollback?
doublec
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May 27, 2012, 06:43:37 AM
 #1666

Has there been a chain fork? Vircurex shows the current block as 329,592. I did a full chain download using the i0coin.bitparking.com client and it has the block count as greater than 330,000. What client is vircurex running?
steelhouse
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May 27, 2012, 06:52:45 AM
 #1667

Has there been a chain fork? Vircurex shows the current block as 329,592. I did a full chain download using the i0coin.bitparking.com client and it has the block count as greater than 330,000. What client is vircurex running?

there is an i0coin-qt client too i think.
doublec
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May 27, 2012, 06:55:25 AM
 #1668

there is an i0coin-qt client too i think.
Yes, I'll try a chain download using this and see if it's on a fork.
paladin_avatar16
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May 27, 2012, 07:04:04 AM
 #1669

Has there been a chain fork? Vircurex shows the current block as 329,592. I did a full chain download using the i0coin.bitparking.com client and it has the block count as greater than 330,000. What client is vircurex running?

I use your 32509 client.
I started it about an hour ago - downloading blocks up to 330475.
Now -only about one hour later - and it's up to 330500 and counting (fast!)

Hope this helps and the whole situation gets cleared up - I kinda like i0coin!
steelhouse
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May 27, 2012, 07:06:33 AM
 #1670

there is an i0coin-qt client too i think.
Yes, I'll try a chain download using this and see if it's on a fork.

The linux and windows versions might be different too.
doublec
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May 27, 2012, 07:18:21 AM
 #1671

The linux and windows versions might be different too.
Yeah, I built from source using kr105's repository and I can't even connect to anything.
paladin_avatar16
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May 27, 2012, 08:07:53 AM
 #1672

Has there been a chain fork? Vircurex shows the current block as 329,592. I did a full chain download using the i0coin.bitparking.com client and it has the block count as greater than 330,000. What client is vircurex running?

I use your 32509 client.
I started it about an hour ago - downloading blocks up to 330475.
Now -only about one hour later - and it's up to 330500 and counting (fast!)

Hope this helps and the whole situation gets cleared up - I kinda like i0coin!

Block count is now 330555. This makes 55 Blocks in this hour alone shown on my client. Hope this info helps anyhow ...
Kumala
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May 27, 2012, 09:40:21 AM
 #1673

The version 32509 is throwing me an error here:

When typing i0coind getinfo it shows:

    "testnet" : false,
    "keypoololdest" : 1335232383,
    "keypoolsize" : 101,
    "paytxfee" : 0.00000000,
    "errors" : "EXCEPTION: 11DbException       \nDb::get: Cannot allocate memory       \ni0coin in ProcessMessage()       \n"
}


I guess thats the reason the download isnt working anymore. Any ideas (I have enought memory, some 4GB free)?
steelhouse
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May 27, 2012, 09:43:30 AM
 #1674

Has there been a chain fork? Vircurex shows the current block as 329,592. I did a full chain download using the i0coin.bitparking.com client and it has the block count as greater than 330,000. What client is vircurex running?

I use your 32509 client.
I started it about an hour ago - downloading blocks up to 330475.
Now -only about one hour later - and it's up to 330500 and counting (fast!)

Hope this helps and the whole situation gets cleared up - I kinda like i0coin!

Block count is now 330555. This makes 55 Blocks in this hour alone shown on my client. Hope this info helps anyhow ...

difficulty drops are unlimited.  But can only rise 25%.  Thus, if the network went down for 3 hours, that is what you may be seeing. 
doublec
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May 27, 2012, 11:07:21 AM
 #1675

I guess thats the reason the download isnt working anymore. Any ideas (I have enought memory, some 4GB free)?
You'll need to delete your existing blockchain files (don't delete your wallet.dat!) and download the blockchain again. It should download successfully. It's trying to do a large chain rollback and failing.
Kumala
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May 27, 2012, 11:21:10 AM
 #1676

I'll do that (after all the backups are done, dont want to loose anything).  Fired up my Mac OS X daemon, same result, error, so seems to be OS independent (at least for Ubuntu and OS X)
doublec
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May 27, 2012, 11:30:45 AM
 #1677

I'll do that (after all the backups are done, dont want to loose anything).  Fired up my Mac OS X daemon, same result, error, so seems to be OS independent (at least for Ubuntu and OS X)
I there there's a fix for it in the bitcoin tree. They had a similar error when they cause a fork at the time of BIP 16 and a release candidate had a date that it switched on too early.
dishwara
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May 27, 2012, 11:56:09 AM
 #1678

Block is 330755, downloaded more than 10000 blocks in 10 minutes.

Using http://kr105.com/i0release.rar
MD5: b6e857ce844e3a9634e2cdb3d8789b6c
SHA256: be7392209ed3bb00b8deabaf8394b83e79201ce2bce52be6d31d8044f6fa2996

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JayCoin
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May 27, 2012, 05:43:49 PM
 #1679

Just stopped p2pmining.com i0coin merged mining.  We where contributing about 10 Gh/s.  I saw the DB error message in the getinfo message field.  Any reason compelling to start merge mining this coin again?

Hello There!
paladin_avatar16
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May 27, 2012, 06:04:49 PM
 #1680

Just stopped p2pmining.com i0coin merged mining.  We where contributing about 10 Gh/s.  I saw the DB error message in the getinfo message field.  Any reason compelling to start merge mining this coin again?

I fired up my 32509 client again. It is normally loading blocks (no errors from getinfo), difficulty 5000 (at around block 300000 we "only" hat around 6000) and 1 block nearly every minute. Something feels strange. If the pools are offline -who is hashing? ... and with at least equal power as before (diff rising, fast blocks ...)?
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