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Topic: [ANN][GRA] Graincoin - New PoW/PoS coin | Fast, secure | Version 1.5 Released! - page 84. (Read 177059 times)

member
Activity: 112
Merit: 10
I think it would be great to have an Android GrainCoin wallet. That way you wouldn't have to worry about your wallet on your PC being open all the time. Your phone is on all the time anyway Smiley
hero member
Activity: 574
Merit: 523
Well, it does sound rather technical, but I'm glad Grain has an active dev who has an interest in maintaining his coin, so I will continue to show my support for Grain.
+1

Quote
Unless I can somehow get the wallet running on my Rasberry Pi, it's not practical for me to have this PC running 24/7.
It's not a big deal, indeed.
full member
Activity: 238
Merit: 100
Like this coin. Happy he survive over now. With all crap coin arround, it's easy to disapear!


97AoQf1TdhQvtQhPhVsYswSkyLNXyTbbb7
hero member
Activity: 532
Merit: 500
It's good to see that everyone is waiting for the returning of PoS block generations. I hope everything will be smooth when we pass through the switchover block at 92000 in a day or two (pretty sure it will, as it worked fine in my tests).

Now I want to give you an overview of the issues with PoW/PoS so we will have a realistic expectations on the PoS.

From my experiences and my observations of many other PoW/PoS coins, the PoW/PoS coins are far less stable than the PoW only coins. The commonly observed problems are:
(1). PoW gets jammed (happened to many coins). Many fixed the issue by forking a new blockchain (including GRA), some did not bother to fix (or dev vanished?), like ADT and COL are still in PoS only mode.
(2). PoS stopped, like what happened to Grain, this is due to the out of sequence in time stamps.
(3). Lots of PoS generation affecting PoW block generation.

The issue (3) can be an annoying one. According to current algorithm, the PoW block time can be extended up to 12X the normal time, if there are a lot PoS generated in-between. This is a normal behavior to maintain the overall block time. And we don't expect PoS always generate a lot all the time (it's controlled by its own diff adjusting). Another possible issue with a lot PoS generation is that it might affect PoW diff, and cause orphans (and I still need to check the code to see why - my understanding is that the two diffs are separated). I saw this issue occurred with Lucky7Coin end of last year, it caused a lot of issues in mining (virtually all the mining pools are stopped as 90% are orphans), and most blocks generated were PoS blocks, with some PoW in-between (the PoW generated time increased between 2X to 12X). The problem is gone now after the PoS generation subsides in Lucky7coin.

The Grain is based on Lucky7Coin code (mainly to use its superblock generation algorithm), which in turn based on Novacoin/PPCoin. We adjusted many parameters and hopefully the same issue will not occur here. We also have all the fixes from PoW/PoS (like the fix from Balthazar on self-forking). For now we still allow the max PoW generation block time be 12X the normal one if needed. We could change it to less multiples such as 3X used (fixed by a patch in) Novacoin codebase, so it could make the mining of PoW less disruptive.

Anyway, just want the community knows the status of PoW/PoS coin in general, and let's hope the Grain will work great Wink


Well, it does sound rather technical, but I'm glad Grain has an active dev who has an interest in maintaining his coin, so I will continue to show my support for Grain.

I'm going to have a wallet on a 24/7 server and send my coins periodically there. Unless I can somehow get the wallet running on my Rasberry Pi, it's not practical for me to have this PC running 24/7.
sr. member
Activity: 336
Merit: 250
Have A Nice Day
It's good to see that everyone is waiting for the returning of PoS block generations. I hope everything will be smooth when we pass through the switchover block at 92000 in a day or two (pretty sure it will, as it worked fine in my tests).

Now I want to give you an overview of the issues with PoW/PoS so we will have a realistic expectations on the PoS.

From my experiences and my observations of many other PoW/PoS coins, the PoW/PoS coins are far less stable than the PoW only coins. The commonly observed problems are:
(1). PoW gets jammed (happened to many coins). Many fixed the issue by forking a new blockchain (including GRA), some did not bother to fix (or dev vanished?), like ADT and COL are still in PoS only mode.
(2). PoS stopped, like what happened to Grain, this is due to the out of sequence in time stamps.
(3). Lots of PoS generation affecting PoW block generation.

The issue (3) can be an annoying one. According to current algorithm, the PoW block time can be extended up to 12X the normal time, if there are a lot PoS generated in-between. This is a normal behavior to maintain the overall block time. And we don't expect PoS always generate a lot all the time (it's controlled by its own diff adjusting). Another possible issue with a lot PoS generation is that it might affect PoW diff, and cause orphans (and I still need to check the code to see why - my understanding is that the two diffs are separated). I saw this issue occurred with Lucky7Coin end of last year, it caused a lot of issues in mining (virtually all the mining pools are stopped as 90% are orphans), and most blocks generated were PoS blocks, with some PoW in-between (the PoW generated time increased between 2X to 12X). The problem is gone now after the PoS generation subsides in Lucky7coin.

The Grain is based on Lucky7Coin code (mainly to use its superblock generation algorithm), which in turn based on Novacoin/PPCoin. We adjusted many parameters and hopefully the same issue will not occur here. We also have all the fixes from PoW/PoS (like the fix from Balthazar on self-forking). For now we still allow the max PoW generation block time be 12X the normal one if needed. We could change it to less multiples such as 3X used (fixed by a patch in) Novacoin codebase, so it could make the mining of PoW less disruptive.

Anyway, just want the community knows the status of PoW/PoS coin in general, and let's hope the Grain will work great Wink


Thank you for your kindly anouncements,

sr. member
Activity: 406
Merit: 250
bosian

what official nodes needed in the grain.conf for 1.3 wallet?

I don't have official nodes, it is not the initial launch. Any peers should work. Please use the peers posted in the thread (for example, by bee7).
sr. member
Activity: 406
Merit: 250
It's good to see that everyone is waiting for the returning of PoS block generations. I hope everything will be smooth when we pass through the switchover block at 92000 in a day or two (pretty sure it will, as it worked fine in my tests).

Now I want to give you an overview of the issues with PoW/PoS so we will have a realistic expectations on the PoS.

From my experiences and my observations of many other PoW/PoS coins, the PoW/PoS coins are far less stable than the PoW only coins. The commonly observed problems are:
(1). PoW gets jammed (happened to many coins). Many fixed the issue by forking a new blockchain (including GRA), some did not bother to fix (or dev vanished?), like ADT and COL are still in PoS only mode.
(2). PoS stopped, like what happened to Grain, this is due to the out of sequence in time stamps.
(3). Lots of PoS generation affecting PoW block generation.

The issue (3) can be an annoying one. According to current algorithm, the PoW block time can be extended up to 12X the normal time, if there are a lot PoS generated in-between. This is a normal behavior to maintain the overall block time. And we don't expect PoS always generate a lot all the time (it's controlled by its own diff adjusting). Another possible issue with a lot PoS generation is that it might affect PoW diff, and cause orphans (and I still need to check the code to see why - my understanding is that the two diffs are separated). I saw this issue occurred with Lucky7Coin end of last year, it caused a lot of issues in mining (virtually all the mining pools are stopped as 90% are orphans), and most blocks generated were PoS blocks, with some PoW in-between (the PoW generated time increased between 2X to 12X). The problem is gone now after the PoS generation subsides in Lucky7coin.

The Grain is based on Lucky7Coin code (mainly to use its superblock generation algorithm), which in turn based on Novacoin/PPCoin. We adjusted many parameters and hopefully the same issue will not occur here. We also have all the fixes from PoW/PoS (like the fix from Balthazar on self-forking). For now we still allow the max PoW generation block time be 12X the normal one if needed. We could change it to less multiples such as 3X used (fixed by a patch in) Novacoin codebase, so it could make the mining of PoW less disruptive.

Anyway, just want the community knows the status of PoW/PoS coin in general, and let's hope the Grain will work great Wink
hero member
Activity: 742
Merit: 500
bosian

what official nodes needed in the grain.conf for 1.3 wallet?
sr. member
Activity: 406
Merit: 250
gra.livechains.net has updated ready to go x]

nice, thanks Otakusama!
full member
Activity: 126
Merit: 100
win 7

just did it again. it almost syncs all the way then crashes

I am running win 7 and it was working fine.

I will check again when I get home

It is all working fine on win 7 here
hero member
Activity: 574
Merit: 523
hero member
Activity: 574
Merit: 523

what nodes needed in the grain.conf for 1.3 wallet?

The same.


This is what I have:

Code:
addnode=108.226.221.98
addnode=118.70.190.61
addnode=119.237.178.52
addnode=142.91.22.53
addnode=146.185.150.184
addnode=175.182.1.139
addnode=178.216.122.243
addnode=188.190.138.46
addnode=212.112.119.23
addnode=212.21.27.144
addnode=213.35.174.21
addnode=24.115.95.58
addnode=24.18.55.8
addnode=24.61.235.251
addnode=37.147.229.171
addnode=46.149.91.36
addnode=5.165.67.45
addnode=50.170.49.84
addnode=60.185.43.164
addnode=66.183.28.149
addnode=66.187.67.233
addnode=67.49.132.16
addnode=71.193.186.19
addnode=72.20.18.200
addnode=75.135.81.210
addnode=77.247.182.246
addnode=79.132.116.131
addnode=82.117.232.182
addnode=83.37.239.174
addnode=84.202.182.12
addnode=86.177.174.213
addnode=86.92.179.1
addnode=87.228.72.73
addnode=88.192.137.44
addnode=88.192.71.189
addnode=90.24.148.40
addnode=91.176.228.45
addnode=93.182.157.26
addnode=94.36.249.63
addnode=95.85.26.11
addnode=98.82.98.51

Many of these could be actually down. This list is built a week ago from these that where seen by my wallet.

Here is the list of currently connected peers:
addnode=61.23.187.93:11054
addnode=204.12.213.18:11054
addnode=209.195.120.19:11054
addnode=162.243.208.154:11054
addnode=198.27.97.178:11054
addnode=146.185.150.184:11054
addnode=95.85.26.11:11054
addnode=198.245.51.98:11054
addnode=192.155.82.95:11054



sr. member
Activity: 350
Merit: 250
so far so good


nice trick. thanks!
member
Activity: 77
Merit: 10
any active giveaway ? im updated to 86008 block and nothing is there... ?!

bosian was not online since you posted in the giveaway thread, so i would say give him some time to send out the coins.

in the meantime I've sended you some of mine Wink
sr. member
Activity: 350
Merit: 250

This is not good really. Make a copy of your wallet.dat file if you did not do this before the client update (actually is a must thing to do when you do update).

Then open the command window (run the cmd.exe) then start the wallet from the command line with switch -salvagewallet:

Code:
"C:\path\to\the\grain\wallet\app\grain-qt" -salvagewallet

I hope that helps.

doing this now. will report back the results
hero member
Activity: 742
Merit: 500

what nodes needed in the grain.conf for 1.3 wallet?
member
Activity: 112
Merit: 10
any active giveaway ? im updated to 86008 block and nothing is there... ?!
hero member
Activity: 574
Merit: 523


This is not good really. Make a copy of your wallet.dat file if you did not do this before the client update (actually is a must thing to do when you do update).

Then open the command window (run the cmd.exe) then start the wallet from the command line with switch -salvagewallet:

Code:
"C:\path\to\the\grain\wallet\app\grain-qt" -salvagewallet

I hope that helps.
sr. member
Activity: 350
Merit: 250
full member
Activity: 126
Merit: 100
win 7

just did it again. it almost syncs all the way then crashes

I am running win 7 and it was working fine.

I will check again when I get home
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