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Topic: NXT :: descendant of Bitcoin - Updated Information - page 2515. (Read 2761645 times)

sr. member
Activity: 317
Merit: 250
Here is transaction
 http://88.198.210.245:7876/?request=getTransaction&transaction=18063112106693460272
Can it be treated as proof that i sent coins to buyer from account 818877006463198736 and he received it to address 3791936988034107349?

Yes. This transaction does prove that.

BTW account number 2119227607764707387 still holds 99900
 http://88.198.210.245:7876/?request=getBalance&account=2119227607764707387
legendary
Activity: 2142
Merit: 1010
Newbie
Was those coins stolen?

Perhaps. In Russian subforum I saw a message that someone already picked a short secret phrase with 1 NXT on the balance.
legendary
Activity: 2142
Merit: 1010
Newbie
Here is transaction
 http://88.198.210.245:7876/?request=getTransaction&transaction=18063112106693460272
Can it be treated as proof that i sent coins to buyer from account 818877006463198736 and he received it to address 3791936988034107349?

Yes. This transaction does prove that.
sr. member
Activity: 317
Merit: 250
I have problem with one of my sell transaction. Buyer admits receiving coins and then after some time next were gone from his account.
Was those coins stolen?
side question

how can the 100k you send me just go poof

25.11.2013 21:52:20      2119227607764707387      99'900            100      10+
25.11.2013 21:14:54      818877006463198736      100'000                         1      10+

with me doing nothing or sending nothing to noone?

Here is transaction
 http://88.198.210.245:7876/?request=getTransaction&transaction=18063112106693460272
Can it be treated as proof that i sent coins to buyer from account 818877006463198736 and he received it to address 3791936988034107349?
legendary
Activity: 2142
Merit: 1010
Newbie
Is there any Build newer than .15?

.17 - https://dl.dropboxusercontent.com/u/67242472/Nxt.zip

3 API requests were added and a little changes in the interface (transaction id is visible now).
legendary
Activity: 2142
Merit: 1010
Newbie
So if I am connected to 10 peers and my send tx was first received by peer # 5 and that peer has a low memory problem, then that tx will fail because it does not get propagated to other nodes. I'll have to wait until tx expires and try again, and hope the next peer (green status) does not have this problem. In the long run, this would certainly be a problem in usability. In my case, if I did not have a VPS, I would not be able to send any transaction since launch.

Does the blacklist feature take into account nodes that have this memory problem, ie nodes that cannot process tx data? Based on my observations and understanding of your explanation, it appears that the answer is "no". Can this be fixed?

Ur node sends a transaction to all peers. Before sending a transaction u can do a little test, just send 1 NXT back to urself. BCNext is working on resolving this issue. Most of nodes have 256 Mb reserved for JVM which is not enough.

Blacklist is for nodes that announced incorrect address or were unreachable. Remove nodes with sane address from the blacklist time to time.
hero member
Activity: 724
Merit: 500
Is there any Build newer than .15?
sr. member
Activity: 252
Merit: 250
Cfb, what do you mean by bad connections?

Maybe it's an incorrect word. Let me explain.

Imagine that u connected to a peer with almost no free memory. If u send him a transaction he may see it and even attempt to send back (and to other peers), but due to "not enough memory" error he won't be able to do this. Java virtual machine reserves not so much memory to Nxt by default and most of nodes face the memory error after a few hours of working. If u connected mostly to such peers then u get what I called "bad connections".

BTW, it's better to launch Nxt by adding -Xms and -Xmx options:

Code:
java -Xms512m -Xmx1024m -cp Nxt.zip Nxt

So if I am connected to 10 peers and my send tx was first received by peer # 5 and that peer has a low memory problem, then that tx will fail because it does not get propagated to other nodes. I'll have to wait until tx expires and try again, and hope the next peer (green status) does not have this problem. In the long run, this would certainly be a problem in usability. In my case, if I did not have a VPS, I would not be able to send any transaction since launch.

Does the blacklist feature take into account nodes that have this memory problem, ie nodes that cannot process tx data? Based on my observations and understanding of your explanation, it appears that the answer is "no". Can this be fixed?
legendary
Activity: 2142
Merit: 1010
Newbie
Cfb, what do you mean by bad connections?

Maybe it's an incorrect word. Let me explain.

Imagine that u connected to a peer with almost no free memory. If u send him a transaction he may see it and even attempt to send back (and to other peers), but due to "not enough memory" error he won't be able to do this. Java virtual machine reserves not so much memory to Nxt by default and most of nodes face the memory error after a few hours of working. If u connected mostly to such peers then u get what I called "bad connections".

BTW, it's better to launch Nxt by adding -Xms and -Xmx options:

Code:
java -Xms512m -Xmx1024m -cp Nxt.zip Nxt
sr. member
Activity: 252
Merit: 250
I bought some nxt with a friend, 150k, and been trying to send him his half. Managed to send about 10k. After that each transfer got rejected. What could be the problem

Incorrect time, bad connections, low memory. Relaunch client and try again AFTER that transaction expire.

Cfb, what do you mean by bad connections? If you mean number of peers, I'd like to know if my location amongst my peers matter. In my case, sending from local machine has been impossible since Nxt was launched.

Let me explain. Say Alice & Bob each has 10 peers connected.
Alice is in Paris, surrounded by 10 peers all over Europe
Bob is in the southern tip of Chile, with the 10 peers way north of him
Is there any difference in success rate of sending for Alice & Bob?

- strange. I've sent 59 transactions so far, and have no such problems at all.
You should send couns only when your client is mining ("You can generate the next block in dd days hh hours mm minutes ss seconds" above the "Recent blocks [n]" vidget).

Curious. How many peers do you usually have? I've been trying to send from my local machine since the day Nxt was launched - zilch. Blocks all up to date but nothing goes through. But when I send through my VPS, 100% success. I think if you're at the fringes of your group of peers, it's really hard to send. Imagine trying to send from Invercargill or the Diego Ramirez Islands. I'm not connecting from there, but close!

sr. member
Activity: 248
Merit: 251
I am glad cunicula is looking carefully on this!!!

Me too. We need more guys to peer review security, crypto and other aspects of Nxt though.

How can we review security if we don't have access to code ...

BCNext offered to reveal any part of the code. Part of the source is not enough to clone Nxt.

Where are those part of code ?
hero member
Activity: 597
Merit: 500
What has become of the blockchain explorer? I have not been able to access for atleast 6 hours. Is it being updated or has there been a url change?

I imagine that IP was getting HAMMERED by all our requests.  Would it be possible to build the common gateway into the .zip that is distributed out, that way if we can be our own block explorer (assuming the client is up to date on all blocks)

yes, not many mining on the node but many account and transaction request. some seems made by fetching bots.
therefore i will provide a json api, where users can connect to and get all the data directly.
legendary
Activity: 2142
Merit: 1010
Newbie
I am glad cunicula is looking carefully on this!!!

Me too. We need more guys to peer review security, crypto and other aspects of Nxt though.

How can we review security if we don't have access to code ...

BCNext offered to reveal any part of the code. Part of the source is not enough to clone Nxt.
hero member
Activity: 597
Merit: 500
What has become of the blockchain explorer? I have not been able to access for atleast 6 hours. Is it being updated or has there been a url change?

it's online. i am testing currently a "reincarnation service", to restart the node when freeze.
the new getState api is fine for this. until the client ist more mature, the explorer can be
out of sync with the blockchain from time to time.
sr. member
Activity: 248
Merit: 251
I am glad cunicula is looking carefully on this!!!

Me too. We need more guys to peer review security, crypto and other aspects of Nxt though.

How can we review security if we don't have access to code ...
full member
Activity: 238
Merit: 100
What has become of the blockchain explorer? I have not been able to access for atleast 6 hours. Is it being updated or has there been a url change?

I imagine that IP was getting HAMMERED by all our requests.  Would it be possible to build the common gateway into the .zip that is distributed out, that way if we can be our own block explorer (assuming the client is up to date on all blocks)
sr. member
Activity: 380
Merit: 275
What has become of the blockchain explorer? I have not been able to access for atleast 6 hours. Is it being updated or has there been a url change?
legendary
Activity: 2142
Merit: 1010
Newbie
I am glad cunicula is looking carefully on this!!!

Me too. We need more guys to peer review security, crypto and other aspects of Nxt though.
legendary
Activity: 1498
Merit: 1000
I am glad cunicula is looking carefully on this!!!
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