NXT :: descendant of Bitcoin - Updated Information

[Jean-Luc]

Release 0.7.0e - experimental

Please report bugs, including the stack traces.

Where should we report bugs?

https://bitbucket.org/JeanLucPicard/nxt-public/issues

[2014-02-06 19:06:29.970] NRS 0.7.0e started successfully.
[2014-02-06 19:10:18.431] Checksum passed at block 30000
[2014-02-06 22:28:06.562] DEBUG: Error sending JSON request
java.io.IOException: Error writing to server
        at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:625)
        at sun.net.www.protocol.http.HttpURLConnection.writeRequests(HttpURLConnection.java:637)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1320)
        at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
        at nxt.peer.Peer.send(Peer.java:584)

This is just a networking error, safe to ignore.

[NXT]

What version we yhave now can't follow

[S3MKi]

What version we yhave now can't follow

https://bitcointalk.org/index.php?topic=345619.msg4975048#msg4975048

[Jean-Luc]

Jean-Luc, it takes 17 minutes to scan the blockchain on my odroid-xu:

Code:

[2014-02-06 20:21:40.352] DEBUG: Database cache size set to 253440 kB
[2014-02-06 20:21:44.208] Database is at level 6
[2014-02-06 20:21:44.215] Updated database is at level 6
[2014-02-06 20:21:44.252] Scanning blockchain...
[2014-02-06 20:38:09.239] ...Done
[2014-02-06 20:38:09.246] NRS 0.7.0e started successfully.

On the old version with .nxt file it took only 9 secounds...

Must have a really slow hard drive... Not much I can do about that now, reading 100 MB database from disk can be expected to be slow, compared to when everything is in memory.

Eventually I will get rid of the need for a full scan. Now it is needed so that accounts, aliases, orders, etc, can be loaded and updated based on the information in each block and every transaction, and then kept in memory. When we switch to storing those in database tables too, a scan will be needed only when for some reason the content of those tables gets out of sync with whatever is in the blocks and transactions tables.

[NXT]

What version we yhave now can't follow

https://bitcointalk.org/index.php?topic=345619.msg4975048#msg4975048

thank you

so it is not 0.7.0e

[swartzfeger]

What version we yhave now can't follow

0.6.1 and an experimental 0.7.0e.

[wesleyh]

NxtMac 0.22 out: http://nxtra.org/mac

Includes 0.6.1 by default and updating to 0.7e works correctly.

[pocesar]

the client really must to have a built-in function to ignore nodes versions lower than it's own version. my version 0.6.1 still connects to some 4.9 nodes, wtf. I have to manually go removing them and blacklisting them

[NXT]

the client really must to have a built-in function to ignore nodes versions lower than it's own version. my version 0.6.1 still connects to some 4.9 nodes, wtf. I have to manually go removing them and blacklisting them

+1

[okaynow]

I have to manually go removing them and blacklisting them

How would i do that, can i remove them with the garbage icon in nrs, or manually delete them from the .xml?


In other news..
http://www.zerohedge.com/news/2014-02-06/high-frequency-bitcoins-hft-firms-now-accepting-btc-payment

[allwelder]

with 0.7.0e

Code:

[2014-02-07 12:57:56.176] DEBUG: Database cache size set to 126720 kB
[2014-02-07 12:57:58.927] Database is at level 6
[2014-02-07 12:57:58.928] Updated database is at level 6
[2014-02-07 12:57:59.077] Scanning blockchain...

stick the above for a moment ,then the cmd window disappear.
any suggestion?
TKS.

I need to know what gets printed out before the crash. Start it from the command line, or somehow prevent that cmd window from disappearing too soon. I don't know how, I never use windows.

put "pause" after command

EDIT java -jar start.jar pause
Something like this

Code:

[2014-02-07 17:50:15.163] DEBUG: Database cache size set to 126720 kB
[2014-02-07 17:50:17.668] Database is at level 6
[2014-02-07 17:50:17.670] Updated database is at level 6
[2014-02-07 17:50:17.680] Scanning blockchain...
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:297)
        at org.eclipse.jetty.start.Main.start(Main.java:724)
        at org.eclipse.jetty.start.Main.main(Main.java:103)
Caused by: java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOf(Unknown Source)
        at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source)
        at java.lang.AbstractStringBuilder.ensureCapacityInternal(Unknown Source
)
        at java.lang.AbstractStringBuilder.append(Unknown Source)
        at java.lang.StringBuilder.append(Unknown Source)
        at java.security.Provider.put(Unknown Source)
        at sun.security.rsa.SunRsaSignEntries.putEntries(Unknown Source)
        at sun.security.rsa.SunRsaSign.<init>(Unknown Source)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

        at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
        at java.lang.reflect.Constructor.newInstance(Unknown Source)
        at java.lang.Class.newInstance(Unknown Source)
        at sun.security.jca.ProviderConfig$2.run(Unknown Source)
        at sun.security.jca.ProviderConfig$2.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.security.jca.ProviderConfig.doLoadProvider(Unknown Source)
        at sun.security.jca.ProviderConfig.getProvider(Unknown Source)
        at sun.security.jca.ProviderList.getProvider(Unknown Source)
        at sun.security.jca.ProviderList$ServiceList.tryGet(Unknown Source)
        at sun.security.jca.ProviderList$ServiceList.access$200(Unknown Source)
        at sun.security.jca.ProviderList$ServiceList$1.hasNext(Unknown Source)
        at java.security.KeyFactory.nextSpi(Unknown Source)
        at java.security.KeyFactory.<init>(Unknown Source)
        at java.security.KeyFactory.getInstance(Unknown Source)
        at sun.security.x509.X509Key.buildX509Key(Unknown Source)
        at sun.security.x509.X509Key.parse(Unknown Source)
        at sun.security.x509.CertificateX509Key.<init>(Unknown Source)
        at sun.security.x509.X509CertInfo.parse(Unknown Source)
        at sun.security.x509.X509CertInfo.<init>(Unknown Source)
        at sun.security.x509.X509CertImpl.parse(Unknown Source)
        at sun.security.x509.X509CertImpl.<init>(Unknown Source)

Usage: java -jar start.jar [options] [properties] [configs]
       java -jar start.jar --help  # for more information

@Jean-Luc ,as above after adding pause .

[Jean-Luc]

Code:

[2014-02-07 17:50:15.163] DEBUG: Database cache size set to 126720 kB
[2014-02-07 17:50:17.668] Database is at level 6
[2014-02-07 17:50:17.670] Updated database is at level 6
[2014-02-07 17:50:17.680] Scanning blockchain...
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.eclipse.jetty.start.Main.invokeMain(Main.java:297)
        at org.eclipse.jetty.start.Main.start(Main.java:724)
        at org.eclipse.jetty.start.Main.main(Main.java:103)
Caused by: java.lang.OutOfMemoryError: Java heap space
        at java.util.Arrays.copyOf(Unknown Source)
        at java.lang.AbstractStringBuilder.expandCapacity(Unknown Source)

@Jean-Luc ,as above after adding pause .

See, it is running out of memory. How do you start java, what -Xmx parameter do you use? Try:
java -Xmx1024M -jar start.jar

[allwelder]

1000 TPS is a theoretical number, in fact I'd wager that it would take at least 2 (possible more) years to have that many transactions per second. So no, you won't need 300GB available (per month).

The max transaction is 255 per block(per minute),right?
so I didnot catch clearly what is mean of 1000 TPS.

[farl4web]

NxtMac 0.22 out: http://nxtra.org/mac

Includes 0.6.1 by default and updating to 0.7e works correctly.

Wesley for president!  

[swartzfeger]

NxtMac 0.22 out: http://nxtra.org/mac

Includes 0.6.1 by default and updating to 0.7e works correctly.

When I check for updates it says I'm running the newest version (0.6.1)... how do I update to 0.7.0e?

[lucky88888]

The reason why there are so little NXT transactions are because they are way to expensive. If i want to send the lowest amount possible to a friend, so he can send it back and test his setup, it costs mit 2 NXT total. (send 3 to him, 2 come to him and he sends the 2 back) That are 12-15 cents.

Our network wants to tell everyone that we can handle big traffic with little cost, but the way i see it, with the fee staying that high, not many transactions will occur.

Or look at faucets. Many people want to enter a currency for free at start to test it out. Now we can get 3 NXT from a faucet. that is 1 transaction .... Rly??
I think currencies like Doge are so successful because the fee is ridiculous low, its 0.01 Doge, that is like a 10.000th of NXT..

I predict a more than 10 fold in transactions if the fee drops to 0.1 NXT and the fractional NXTs get enabled.  Also even if it does not increase by tenfold, then then widespread of the currency makes up for it.

FEE 0.1!!!!  NAOWW

Exactly!
When are we implementing this change?

[Mario123]

1000 TPS is a theoretical number, in fact I'd wager that it would take at least 2 (possible more) years to have that many transactions per second. So no, you won't need 300GB available (per month).

The max transaction is 255 per block(per minute),right?
so I didnot catch clearly what is mean of 1000 TPS.

We have to remind ourself that the POSSIBILITY of 1000TPS brings us to 1000TPS in a few years. If we now state "not possible", we lose one feature.

[bitcoinpaul]

Right. I want to remind everyone to think about Nxt's target audience and which features we should deliver.

https://bitcointalk.org/index.php?topic=345619.msg4959522#msg4959522

Just want to catch on the discussion we had this afternoon about features and target audience for nxt.

1. (Possible) Features:
- TF for instant transactions
- TF + punishment against 50% attacks (correct?)
- no bloated blockchain
- energy friendly crypto
- mobile friendly crypto
- easy to add new features
- many many TPS
- parallel blockchains
- blockchain shrinking
- decentralized exchange
- colored coins
- decentralized voting/opiniongrabber
- decentralized AM (data storage, link storage (eg torrents), encrypted messaging, ...)
- dividend payouts (all fees per block) for everyone instead of mining of the few with lots of power
- Turing capability
- smart contracts
- anonymous transactions
- SMS gateway

2. Today it was clear that the nxt community...

[wesleyh]

NxtMac 0.22 out: http://nxtra.org/mac

Includes 0.6.1 by default and updating to 0.7e works correctly.

When I check for updates it says I'm running the newest version (0.6.1)... how do I update to 0.7.0e?

Go to the NxtMac > preferences menu and enable "download beta updates". Then NxtMac > check for updates. The blockchain will have to be redownloaded as it's going to be saved in a database.

[pocesar]

I have to manually go removing them and blacklisting them

How would i do that, can i remove them with the garbage icon in nrs, or manually delete them from the .xml?


In other news..
http://www.zerohedge.com/news/2014-02-06/high-frequency-bitcoins-hft-firms-now-accepting-btc-payment

when you click the 'trash can' on the 'Active peers' list, it will go to the bottom of the 'Known peers' list with a orange icon, you need to click the trash can again to remove it completely.