Quote from: gjhiggins on December 18, 2016, 01:13:09 PM

I've never managed to persuade the client to read a bootstrap.dat file, it may be something to do with rejected PoS rewards from orphaned blocks causing the process to be abandoned. In each case, I've been obliged to allow the client to synch from the live network. However, it's trivial to create a bootstrap.dat file and a cron job can maintain its currency. I'll give that a go, see if it helps.

As for limited connections, look to NAT. The server serving minkiz.co is an i7 running Ubuntu Wily from hetzner, i.e. on the open subnet. Here's the result of getpeerinfo

Code:

gjh@Ubuntu-1510-wily-64-minimal ~ $ /www/lib/abe/slimcoin-master/slimcoind getpeerinfo
[
   {
   "addr" : "37.187.100.75:41682",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482060903,
   "conntime" : 1479081131,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : false,
   "releasetime" : 0,
   "height" : 810517,
   "banscore" : 1
   },
   {
   "addr" : "144.76.35.207:41682",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482060903,
   "conntime" : 1479081132,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : false,
   "releasetime" : 0,
   "height" : 810517,
   "banscore" : 2
   },
   {
   "addr" : "5.9.39.9:41682",
   "services" : "00000001",
   "lastsend" : 1482060902,
   "lastrecv" : 1482060902,
   "conntime" : 1479081138,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : false,
   "releasetime" : 0,
   "height" : 810517,
   "banscore" : 2
   },
   {
   "addr" : "173.168.81.122:51691",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482059704,
   "conntime" : 1481047106,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : true,
   "releasetime" : 0,
   "height" : 832200,
   "banscore" : 0
   },
   {
   "addr" : "78.46.46.11:49712",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482060903,
   "conntime" : 1481366071,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : true,
   "releasetime" : 0,
   "height" : 835501,
   "banscore" : 1
   },
   {
   "addr" : "88.98.87.243:41262",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482060903,
   "conntime" : 1481970259,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.4/SLIMCoin:0.5.0(SLMv0.4.1-alpha-14-g8fa8960-dirty-alpha)/",
   "inbound" : true,
   "releasetime" : 0,
   "height" : 842160,
   "banscore" : 1
   },
   {
   "addr" : "39.128.196.200:33192",
   "services" : "00000001",
   "lastsend" : 1482060903,
   "lastrecv" : 1482060150,
   "conntime" : 1482059581,
   "version" : 60003,
   "subver" : "/Satoshi:0.6.3/",
   "inbound" : true,
   "releasetime" : 0,
   "height" : 843406,
   "banscore" : 0
   }
]

NAT does confuse matters - the Satoshi:0.6.4 above is either the laptop I'm using right now or the MacBook sat across the room from me. I'll hunt around for some received wisdom (and maybe even go so far as running the MacBook client from a different port and configuring the NAT to enable two-way connectivity).

For comparison, the result of the same call made on the client running on my Xenial i3 laptop:

Code:

[
{
"addr" : "37.187.100.75:41682",
"services" : "00000001",
"lastsend" : 1482063713,
"lastrecv" : 1482063617,
"conntime" : 1481970257,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 842422,
"banscore" : 0
},
{
"addr" : "144.76.35.207:41682",
"services" : "00000001",
"lastsend" : 1482063616,
"lastrecv" : 1482063615,
"conntime" : 1481970257,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 842422,
"banscore" : 0
},
{
"addr" : "5.9.39.9:41682",
"services" : "00000001",
"lastsend" : 1482063712,
"lastrecv" : 1482063614,
"conntime" : 1481970258,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 842422,
"banscore" : 0
},
{
"addr" : "144.76.64.49:41682",
"services" : "00000001",
"lastsend" : 1482063616,
"lastrecv" : 1482063712,
"conntime" : 1481970259,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/SLIMCoin:0.4.0(SLMv0.4.1-alpha-12-g14c5606-dirty-alpha)/",
"inbound" : false,
"releasetime" : 0,
"height" : 842422,
"banscore" : 0
},
{
"addr" : "78.46.46.11:41682",
"services" : "00000001",
"lastsend" : 1482063616,
"lastrecv" : 1482063615,
"conntime" : 1481970276,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 842422,
"banscore" : 0
}
]

Hmm. The 144.76.64.49:41682 is the heztner box, the difference suggests I may have omitted to pull the latest code. Let me check that.

Just to confound matters further, here's the result of getpeerinfo on the 2011 MacBook running Snow Leopard:

Code:

[
{
"addr" : "37.187.100.75:41682",
"services" : "00000001",
"lastsend" : 1482064108,
"lastrecv" : 1482064107,
"conntime" : 1481632612,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 838662,
"banscore" : 0
},
{
"addr" : "144.76.35.207:41682",
"services" : "00000001",
"lastsend" : 1482064108,
"lastrecv" : 1482064108,
"conntime" : 1481632761,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 838664,
"banscore" : 0
},
{
"addr" : "5.9.39.9:41682",
"services" : "00000001",
"lastsend" : 1482064106,
"lastrecv" : 1482064107,
"conntime" : 1481632762,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 838664,
"banscore" : 1
},
{
"addr" : "78.46.46.11:41682",
"services" : "00000001",
"lastsend" : 1482064107,
"lastrecv" : 1482064107,
"conntime" : 1481637400,
"version" : 60003,
"subver" : "/Satoshi:0.6.3/",
"inbound" : false,
"releasetime" : 0,
"height" : 838725,
"banscore" : 0
}
]

Frankly, I don't know how to interpret the difference in heights reported by the daemon running on the hetzner box. In other versions of the Bitcoin codebase it is labelled startingheight. Here's the result from the same call but with Chaincoin (a Bitcoin Core 0.9 clone):

Code:

gjh@Ubuntu-1510-wily-64-minimal ~ $ /www/lib/abe/chaincoin/chaincoin-cli getpeerinfo
[
   {
   "addr" : "162.255.117.105:63044",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 80794494,
   "bytesrecv" : 11243873,
   "conntime" : 1472438063,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.1/",
   "inbound" : true,
   "startingheight" : 884591,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "5.1.56.44:35578",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 55560251,
   "bytesrecv" : 16004957,
   "conntime" : 1474322981,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 898084,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "[2a00:e140::2c]:38470",
   "addrlocal" : "[2a01:4f8:191:7330::2]:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 37967409,
   "bytesrecv" : 9511147,
   "conntime" : 1474386341,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 898586,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "66.172.10.28:59851",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 10612170,
   "bytesrecv" : 4624304,
   "conntime" : 1479742746,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 955754,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "80.236.18.96:47916",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061647,
   "bytessent" : 12460661,
   "bytesrecv" : 8681214,
   "conntime" : 1479947729,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 958136,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "192.99.37.133:45792",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061773,
   "bytessent" : 10416941,
   "bytesrecv" : 7641128,
   "conntime" : 1480279029,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 960059,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "192.99.37.133:9999",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061773,
   "bytessent" : 6247740,
   "bytesrecv" : 5540452,
   "conntime" : 1480653683,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : false,
   "startingheight" : 963415,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "45.32.231.128:49994",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061788,
   "bytessent" : 6316930,
   "bytesrecv" : 5614259,
   "conntime" : 1480655788,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 961888,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "[2001:19f0:8001:19:5400:ff:fe2a:8427]:49593",
   "addrlocal" : "[2a01:4f8:191:7330::2]:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061788,
   "bytessent" : 5982793,
   "bytesrecv" : 5335419,
   "conntime" : 1480655801,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 962889,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "75.83.174.139:46624",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 6077908,
   "bytesrecv" : 1516014,
   "conntime" : 1481041825,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 966379,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "45.32.231.128:11994",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061788,
   "bytessent" : 3820516,
   "bytesrecv" : 3575313,
   "conntime" : 1481108639,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : false,
   "startingheight" : 967644,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "84.200.4.67:44887",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061744,
   "bytessent" : 4786012,
   "bytesrecv" : 3523256,
   "conntime" : 1481122035,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 967800,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "84.200.4.67:9999",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061744,
   "bytessent" : 3637001,
   "bytesrecv" : 3212535,
   "conntime" : 1481153752,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : false,
   "startingheight" : 968183,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "198.27.81.25:56571",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061564,
   "bytessent" : 2578091,
   "bytesrecv" : 2065377,
   "conntime" : 1481555828,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 916388,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "[2607:5300:60:2219::]:43147",
   "addrlocal" : "[2a01:4f8:191:7330::2]:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061564,
   "bytessent" : 2091118,
   "bytesrecv" : 1057558,
   "conntime" : 1481556052,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 968908,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "68.50.149.140:49431",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061783,
   "bytessent" : 1281720,
   "bytesrecv" : 847295,
   "conntime" : 1481826608,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 970340,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "5.228.235.156:53678",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 1136493,
   "bytesrecv" : 401305,
   "conntime" : 1481837534,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 970300,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "88.98.87.243:46902",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061504,
   "bytessent" : 682646,
   "bytesrecv" : 99616,
   "conntime" : 1481949796,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.1/",
   "inbound" : true,
   "startingheight" : 971424,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "71.87.238.84:49376",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061766,
   "bytessent" : 285324,
   "bytesrecv" : 240133,
   "conntime" : 1481984806,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 971863,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "68.50.149.140:49329",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061765,
   "bytessent" : 236632,
   "bytesrecv" : 265111,
   "conntime" : 1481992128,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 971914,
   "banscore" : 0,
   "syncnode" : true
   },
   {
   "addr" : "192.99.200.144:59584",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061541,
   "bytessent" : 140690,
   "bytesrecv" : 22993,
   "conntime" : 1482019955,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 971982,
   "banscore" : 0,
   "syncnode" : false
   },
   {
   "addr" : "75.139.237.75:46405",
   "addrlocal" : "144.76.64.49:11994",
   "services" : "00000001",
   "lastsend" : 1482061768,
   "lastrecv" : 1482061624,
   "bytessent" : 132235,
   "bytesrecv" : 18428,
   "conntime" : 1482023103,
   "pingtime" : 0.00000000,
   "version" : 70002,
   "subver" : "/Core:0.9.2.2/",
   "inbound" : true,
   "startingheight" : 971982,
   "banscore" : 0,
   "syncnode" : false
   }
]

Just about anybody's guess is better than mine atm. I'll attend to NAT/port issues to try and clarify the local conditions (which is why I'm working on an OS X Sierra version - it will enable me to recruit Ngaio's new MB, then I might get better triangulation).

The performance of the Slimcoin.app on the old MacBook is a useful datum point. The Slimcoin app uses around 1.5-2% of (a OS X 10.6.8 Core Duo) CPU thread and has received several mint-by-proof-of-burn blocks, compared to just one mint-by-proof-of-stake (probably courtesy of the low diff atm) but it does suggest a validation of the original intention of producing a coin that doesn't need special hardware to mine (i.e. protect the public ledger).

As regards exchanges, I consider that to be someone else's business (literally).

As regard the chart, it's an initial step towards instrumenting the network in more detail. I finally managed to work out what we're looking at - there are (at least) two difficulties in play, PoS and PoW - the graph shows both, without lifting the pen, hence the up-and-down graphs - and serendipitously, the relative proportion of blocks generated by each.

I presume there're also mint-by-proof-of-burn blocks in there too, perhaps there's a need for three separate plot lines.

Network hash rate would be a useful addition I feel, I'm given to understand that PoS coin networks can become unstable when only a few nodes are staking.

The mining tab is definitely wonky and needs further work, lemme check ... yup, thought so. Simply clicking Start Mining has no effect. Incrementing the threads by 1 (to 2) and clicking the Start Mining does work in a manner of speaking in that ALL threads are used. For an interim solution, it may be that setting the genlimit parameter will limit that. (There's always slimminer, it worked okay when I tried it with this client).

As regards more than one chain, that is possible. I have added a block explorer to the coin so users can check their node's status without having to negotiate the rpc command console.

There are two block explorers:

https://bchain.info/SLM/

and

http://www.slimcoin.club/#blkexp

They are in synch as far as I can tell, e.g. 843491 appears in both and they agree on the hash as 0242f191867f6119a691ab7d945386f6334989e36911c85c40ec4f5ab8e519a7

and that's the same hash as reported by the in-client block explorer in the client running my laptop, and the MacBook, and the hetzner box.

If entering 843491 and then clicking Jump to Block (or getblockhash 843491 on the rpc console) doesn't result in 0242f191867f6119a691ab7d945386f6334989e36911c85c40ec4f5ab8e519a7 then that client is working on a different chain.

If that is the case, it is your choice to continue working on that chain or not --- in practical terms, the social consensus trumps the crypto consensus. For sanity's sake, I cross-reference with the block explorers and take my cue from them (one has to start *somewhere*).

Cheers

Graham

My client is reporting the right height now. I have just downloaded 35% of the chain . I checked hash against bchain.info and Im on the right chain. I guess Im finished syncing tomorrow.

So it looks good. You are doing a great job.

It usually the longest chain that should win.