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1  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][PIVX] - PRIVATE INSTANT VERIFIED TRANSACTION - POS 2.0 - ZEROCOIN PROTOCOL on: March 23, 2017, 11:49:44 AM
When you don't have enough, the process get's killed by the linux kernel.

of course I know it

Is your ram limited by any chance?

of course, 512 Mb now, but how to determine which of config parameteres influences to the ram?

pivx daemon like dash may be and bitcoin I think very gluttonous for ram

but dash daemon more and more stable now, a lot of work has been done there

and ok this discussion сan be moved to pivx forum

512 MB is low RAM.

Check if you have a paging file (SWAP) set-up (if the following command returns blank then you don't have one)...

Code:
sudo swapon -s

Create a 1GB SWAP file (double the amount of physical RAM is the recommendation up to 2 GB physical RAM)

Code:
sudo dd if=/dev/zero of=/swapfile bs=64M count=16

N.B. count=16 = 1GB SWAP (count=32 would create a 2GB SWAP etc.)

Code:
sudo chmod 600 /swapfile

Code:
sudo mkswap /swapfile

Code:
sudo swapon /swapfile

You then need to make the paging file persistent on re-boot by adding the following line to the base of /etc/fstab.

Open fstab ...

Code:
sudo nano /etc/fstab

Quote
/swapfile   none    swap    sw    0   0

crtl + x (to save)

Also adding the following lines to sysctl.conf will make the SWAP file more efficient on a server.

Open sysctl.conf ...

Code:
sudo nano /etc/sysctl.conf

Quote
vm.swappiness = 60

Quote
vm.vfs_cache_pressure = 50

Again, crtl + x (to save)

Now restart the wallet daemon. Hope it helps.

yes its  blank
many thanks bro
2  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][PIVX] - PRIVATE INSTANT VERIFIED TRANSACTION - POS 2.0 - ZEROCOIN PROTOCOL on: March 23, 2017, 10:29:06 AM
When you don't have enough, the process get's killed by the linux kernel.

of course I know it

Is your ram limited by any chance?

of course, 512 Mb now, but how to determine which of config parameteres influences to the ram?

pivx daemon like dash may be and bitcoin I think very gluttonous for ram

but dash daemon more and more stable now, a lot of work has been done there

and ok this discussion сan be moved to pivx forum
3  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][PIVX] - PRIVATE INSTANT VERIFIED TRANSACTION - POS 2.0 - ZEROCOIN PROTOCOL on: March 23, 2017, 09:50:06 AM
devs you need for hard work to fix some shits erorrs in pivx daemon
after its once killed (why?) and after manual restart the blockchain is corrupted:

Quote
[root@xxxx ~]# : Corrupted block database detected.
 
Do you want to rebuild the block database now?

Quote
2017-03-23 07:08:46 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:08:46 block time=1490233275 adjusted time=1490252926 is proof of stake=1
2017-03-23 07:08:46 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:08:46 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:08:46 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
2017-03-23 07:08:46 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:08:47 block time=1490233275 adjusted time=1490252927 is proof of stake=1
2017-03-23 07:08:47 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:08:47 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:08:47 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
2017-03-23 07:08:47 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:09:00 block time=1490233275 adjusted time=1490252940 is proof of stake=1
2017-03-23 07:09:00 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:09:00 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:09:00 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
Never had that issue. Why did you kill the process? How did you install PIVX and what version? Feel free to hit #support in slack.

Ps.: It's obviously a known issue when you try _really_ hard to kill the process multiple times and only happening to installations on a SSD ;-)
Fix in the works here: https://github.com/PIVX-Project/PIVX/issues/69 Stay calm, coins are safe.

Its killed not by me, it was crash, now I am experementing with maxconnection parameter,  looks like decreasing this paramater more stable for daemon

But it is a fact that some daemon crashing corrupts local blockchain and it is a bug need for fix it

and yes it is SSD VPS, thanks for link
4  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][PIVX] - PRIVATE INSTANT VERIFIED TRANSACTION - POS 2.0 - ZEROCOIN PROTOCOL on: March 23, 2017, 07:25:54 AM
devs you need for hard work to fix some shits erorrs in pivx daemon
after its once killed (why?) and after manual restart the blockchain is corrupted:

Quote
[root@xxxx ~]# : Corrupted block database detected.
 
Do you want to rebuild the block database now?

Quote
2017-03-23 07:08:46 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:08:46 block time=1490233275 adjusted time=1490252926 is proof of stake=1
2017-03-23 07:08:46 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:08:46 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:08:46 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
2017-03-23 07:08:46 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:08:47 block time=1490233275 adjusted time=1490252927 is proof of stake=1
2017-03-23 07:08:47 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:08:47 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:08:47 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
2017-03-23 07:08:47 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-23 07:09:00 block time=1490233275 adjusted time=1490252940 is proof of stake=1
2017-03-23 07:09:00 ERROR: GetTransaction : Deserialize or I/O error - ReadCompactSize() : size too large
2017-03-23 07:09:00 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-23 07:09:00 WARNING: ProcessBlock(): check proof-of-stake failed for block 32077a6f993ca48d2869fcba5839f0633f2dda3c66a2c817323b3343beba1f8d
5  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][PIVX] - PRIVATE INSTANT VERIFIED TRANSACTION - POS 2.0 - ZEROCOIN PROTOCOL on: March 22, 2017, 12:21:22 PM
some shit happened in first running of pivx daemon
it is killed
look like blockchain corrupted and not synced yet

after second run:
Quote
2017-03-22 12:14:19 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-22 12:14:19 block time=1487834676 adjusted time=1490184860 is proof of stake=1
2017-03-22 12:14:19 ERROR: GetTransaction : txid mismatch
2017-03-22 12:14:19 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-22 12:14:19 WARNING: ProcessBlock(): check proof-of-stake failed for block 91a7153df7780665e3fc489d7c977228520cf375816152d3d02214d857462eb2
2017-03-22 12:14:19 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-22 12:14:20 block time=1487834676 adjusted time=1490184861 is proof of stake=1
2017-03-22 12:14:20 ERROR: GetTransaction : txid mismatch
2017-03-22 12:14:20 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-22 12:14:20 WARNING: ProcessBlock(): check proof-of-stake failed for block 91a7153df7780665e3fc489d7c977228520cf375816152d3d02214d857462eb2
2017-03-22 12:14:20 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-22 12:14:20 block time=1487834676 adjusted time=1490184861 is proof of stake=1
2017-03-22 12:14:20 ERROR: GetTransaction : txid mismatch
2017-03-22 12:14:20 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-22 12:14:20 WARNING: ProcessBlock(): check proof-of-stake failed for block 91a7153df7780665e3fc489d7c977228520cf375816152d3d02214d857462eb2
2017-03-22 12:14:20 ERROR: ProcessNewBlock : AcceptBlock FAILED
2017-03-22 12:16:35 block time=1487834676 adjusted time=1490184996 is proof of stake=1
2017-03-22 12:16:35 ERROR: GetTransaction : txid mismatch
2017-03-22 12:16:35 ERROR: CheckProofOfStake() : INFO: read txPrev failed
2017-03-22 12:16:35 WARNING: ProcessBlock(): check proof-of-stake failed for block 91a7153df7780665e3fc489d7c977228520cf375816152d3d02214d857462eb2
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