[*] 8BIT [Dark Masternodes][Anon][Roadmap Stage 4]

[8-bit-Party]

                   total        used        free      shared  buff/cache   available
Mem:            488         106          84           4         297         345
Swap:          3071         448        2623

ps ux|grep 8bitd
theo      7541 52.5 76.4 2219172 382296 ?      SLsl 09:27 208:58 ./8bitd -daemon
theo      8632  0.0  0.1  14520   888 pts/1    S+   16:04   0:00 grep --color=auto 8bitd

So... to summary - 8bitd resident size is 382M while your system reports 106M mem usage and 448M swap usage. I guess your provider is overbooking resources and therefore swaps aggressively. If your provider allows to temporary bump VPS parameters - try 1GB mem plan - it should give instant effect.
If it is your bare metal machine, reduce the swappiness.

[1714136509]

1714136509

[1714136509]

1714136509

[r8st]

                  total        used        free      shared  buff/cache   available
Mem:            488         106          84           4         297         345
Swap:          3071         448        2623

ps ux|grep 8bitd
theo      7541 52.5 76.4 2219172 382296 ?      SLsl 09:27 208:58 ./8bitd -daemon
theo      8632  0.0  0.1  14520   888 pts/1    S+   16:04   0:00 grep --color=auto 8bitd

So... to summary - 8bitd resident size is 382M while your system reports 106M mem usage and 448M swap usage. I guess your provider is overbooking resources and therefore swaps aggressively. If your provider allows to temporary bump VPS parameters - try 1GB mem plan - it should give instant effect.
If it is your bare metal machine, reduce the swappiness.

I found it helps to change Ubuntu's "swappiness";

"You can find in system monitor that Ubuntu is using swap space although you have plenty of free physical RAM.
This is due to the default swappiness value of Ubuntu. Swappiness is a Linux kernel parameter that controls how often Linux swap out idle processes to the swap space on your hard drive.
The value of swappiness is between 0 ~ 100. Lower value means Linux will use swap space less whereas higher value causes Linux to use swap space more often. The default value on Ubuntu is 60 which means when your computer uses up 40% of physical RAM, Linux kernel begins swapping.
You can use the following command to check the current value.
cat /proc/sys/vm/swappiness
It’s recommended to set a low value for swappiness so that Linux kernel will use as much physical RAM as possible. For example, to set swappiness to 12:
sudo sysctl vm.swappiness=12
This command tells Linux kernel to use swap space when 88% or more of physical RAM is used up.  This setting isn’t persistent.
To make it persistent across reboots, you need to edit a file.
sudo nano /etc/sysctl.d/99-sysctl.conf
At the end of this file, append the following line.
vm.swappiness=12
"

(from https://www.linuxbabe.com/ubuntu/4-tips-speed-up-ubuntu-16-04)

[bakra]

                   total        used        free      shared  buff/cache   available
Mem:            488         106          84           4         297         345
Swap:          3071         448        2623

ps ux|grep 8bitd
theo      7541 52.5 76.4 2219172 382296 ?      SLsl 09:27 208:58 ./8bitd -daemon
theo      8632  0.0  0.1  14520   888 pts/1    S+   16:04   0:00 grep --color=auto 8bitd

So... to summary - 8bitd resident size is 382M while your system reports 106M mem usage and 448M swap usage. I guess your provider is overbooking resources and therefore swaps aggressively. If your provider allows to temporary bump VPS parameters - try 1GB mem plan - it should give instant effect.
If it is your bare metal machine, reduce the swappiness.

I also get the feeling the provider is overbooking resources. I've set the swappiness to 12 now to see what that will do. If that doesn't help I'm thinking of switching provider again

[bakra]

                  total        used        free      shared  buff/cache   available
Mem:            488         106          84           4         297         345
Swap:          3071         448        2623

ps ux|grep 8bitd
theo      7541 52.5 76.4 2219172 382296 ?      SLsl 09:27 208:58 ./8bitd -daemon
theo      8632  0.0  0.1  14520   888 pts/1    S+   16:04   0:00 grep --color=auto 8bitd

So... to summary - 8bitd resident size is 382M while your system reports 106M mem usage and 448M swap usage. I guess your provider is overbooking resources and therefore swaps aggressively. If your provider allows to temporary bump VPS parameters - try 1GB mem plan - it should give instant effect.
If it is your bare metal machine, reduce the swappiness.

I found it helps to change Ubuntu's "swappiness";

"You can find in system monitor that Ubuntu is using swap space although you have plenty of free physical RAM.
This is due to the default swappiness value of Ubuntu. Swappiness is a Linux kernel parameter that controls how often Linux swap out idle processes to the swap space on your hard drive.
The value of swappiness is between 0 ~ 100. Lower value means Linux will use swap space less whereas higher value causes Linux to use swap space more often. The default value on Ubuntu is 60 which means when your computer uses up 40% of physical RAM, Linux kernel begins swapping.
You can use the following command to check the current value.
cat /proc/sys/vm/swappiness
It’s recommended to set a low value for swappiness so that Linux kernel will use as much physical RAM as possible. For example, to set swappiness to 12:
sudo sysctl vm.swappiness=12
This command tells Linux kernel to use swap space when 88% or more of physical RAM is used up.  This setting isn’t persistent.
To make it persistent across reboots, you need to edit a file.
sudo nano /etc/sysctl.d/99-sysctl.conf
At the end of this file, append the following line.
vm.swappiness=12
"

(from https://www.linuxbabe.com/ubuntu/4-tips-speed-up-ubuntu-16-04)

Thanks for the tip. I've set the swappiness to 12 now. I will wait a couple of days to see what that will do.

[r8st]

Is it possible to send masternode reward coins safely from my wallet while mn is running? I don't have qt built. If so, how would I do that?

Code:

8bitd -cli getreceivedbyaddress
[
    {
        "address" : "8xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "account" : "mn1",
        "amount" : 112.00000000,
        "confirmations" : 88088
    }
]

and

Code:

8bitd -cli getbalance
188.08

I think if I try to send say 8  8-bit out of my wallet right now it will screw up my mn, right?

How to avoid messing up mn? I know I could turn off mn, send what I want out, then create a new address in the wallet to send 112 to, and then generate a new masternode privkey and then edit the .conf and restart 8bitd, but I'm hoping there's an easier way. Thanks

[8-bit-Party]

Is it possible to send masternode reward coins safely from my wallet while mn is running? I don't have qt built. If so, how would I do that?

Code:

8bitd -cli getreceivedbyaddress
[
    {
        "address" : "8xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
        "account" : "mn1",
        "amount" : 112.00000000,
        "confirmations" : 88088
    }
]

and

Code:

8bitd -cli getbalance
188.08

I think if I try to send say 8  8-bit out of my wallet right now it will screw up my mn, right?

How to avoid messing up mn? I know I could turn off mn, send what I want out, then create a new address in the wallet to send 112 to, and then generate a new masternode privkey and then edit the .conf and restart 8bitd, but I'm hoping there's an easier way. Thanks

It can be done in several ways, you have to choose which inputs will create your transaction, https://bitcoin.org/en/developer-examples#simple-raw-transaction is a good start

[RueDuSite]

8bit not working on my Windows 10.
On Ubuntu, 8bit working well

[r8st]

It can be done in several ways, you have to choose which inputs will create your transaction, https://bitcoin.org/en/developer-examples#simple-raw-transaction is a good start

Ok thank you. Can it also be done through the gui? I built the qt yesterday to see if "coin control" is an option through the gui but couldn't find it.

[8-bit-Party]

It can be done in several ways, you have to choose which inputs will create your transaction, https://bitcoin.org/en/developer-examples#simple-raw-transaction is a good start

Ok thank you. Can it also be done through the gui? I built the qt yesterday to see if "coin control" is an option through the gui but couldn't find it.

With qt client its much easier. Go to the options and enable "Display coin control (experts only!)".

[Pon13]

Hi guys !! can someone tell me the procedure to have more than one MN in ubuntu with the same machine ??

Is there a way to point 8bitd or the gui to a different .8bit folder ? do i use the same .8bit folder for everything ??

thanks in advance !

[coon056]

Hi guys !! can someone tell me the procedure to have more than one MN in ubuntu with the same machine ??

Is there a way to point 8bitd or the gui to a different .8bit folder ? do i use the same .8bit folder for everything ??

thanks in advance !

Run with parameter -datadir=<dir>

[r8st]

Ok I have spent some time trying to enable "coin control" for the qt. I just can not figure it out, anyone? 8-bit party said it was one of the options... I can not find/see ANY options section to click on, anywhere...?

[coon056]

Ok I have spent some time trying to enable "coin control" for the qt. I just can not figure it out, anyone? 8-bit party said it was one of the options... I can not find/see ANY options section to click on, anywhere...?

I have an interface in Russian, but I'm sure you'll figure out where to put the parameter
http://s018.radikal.ru/i512/1710/0a/d3919e806389.png

[r8st]

Ok I have spent some time trying to enable "coin control" for the qt. I just can not figure it out, anyone? 8-bit party said it was one of the options... I can not find/see ANY options section to click on, anywhere...?

I have an interface in Russian, but I'm sure you'll figure out where to put the parameter

Yes that's what I am looking for, I just can't figure out how to get to that screen! Maybe there is something wrong with my qt build? There is no options/settings button for me to click on to get there... maybe I need to run the qt with an additional option that enables coin control? Is there such an option?

[Pon13]

Right click at the tray icon --> options

[r8st]

Right click at the tray icon --> options

lol. oh my goodness, got it. thanks so much.

[r8st]

If anyone's considering setting up multiple mns on a system in the future I HIGHLY recommend using Ubuntu 16.04 Server, rather than Desktop. Huge resources are conserved this route. On my system I was only able to run 6 instances of 8bitd through ubuntu desktop, and even then one or more mn would drop out every couple days. With ubuntu server I am now up to 8 mns, I think I could get one or 2 more going even, and I only have 8gb ram installed right now, plenty of resources left over to do other stuff. It is running 100x more stable than with ubuntu desktop, it feels like, I'd feel comfortable not checking this for weeks at a time. I'll check back in in a few days.

[coon056]

If anyone's considering setting up multiple mns on a system in the future I HIGHLY recommend using Ubuntu 16.04 Server, rather than Desktop. Huge resources are conserved this route. On my system I was only able to run 6 instances of 8bitd through ubuntu desktop, and even then one or more mn would drop out every couple days. With ubuntu server I am now up to 8 mns, I think I could get one or 2 more going even, and I only have 8gb ram installed right now, plenty of resources left over to do other stuff. It is running 100x more stable than with ubuntu desktop, it feels like, I'd feel comfortable not checking this for weeks at a time. I'll check back in in a few days.

I can recommend a service for monitoring MN
https://uptimerobot.com/

[Pon13]

If anyone's considering setting up multiple mns on a system in the future I HIGHLY recommend using Ubuntu 16.04 Server, rather than Desktop. Huge resources are conserved this route. On my system I was only able to run 6 instances of 8bitd through ubuntu desktop, and even then one or more mn would drop out every couple days. With ubuntu server I am now up to 8 mns, I think I could get one or 2 more going even, and I only have 8gb ram installed right now, plenty of resources left over to do other stuff. It is running 100x more stable than with ubuntu desktop, it feels like, I'd feel comfortable not checking this for weeks at a time. I'll check back in in a few days.

I'm considering it and i guess you are right, especially if your ubuntu machine is on old hardware.
i have coins for a few more mns but i cant imagine my ubuntu running more than 3 instances.
i might actually format and install ubuntu server to see how it goes

[8-bit-Party]

I have recommended one of the users to keep infinite loop / crontab script starting 8bit client every N minutes to mitigate OOMs when memory consumption spikes. Quite rough, although works flawless, he runs 10+ MNs on 8GB machine (with a really small swapfile). In case of database corruption he easily restores it from the client that has been not killed.