View source for NodeCore 0.4.8 ReleaseNotes

See: [[ReleaseNotes]], [[Bootstrap_Downloader]]

__TOC__

== Nodecore.dat storage split into multiple files ==
Block storage has been reworked. The bootstrap file size has been reduced significantly and now the blocks' data is split into files and subfolders (~1 file per day and ~1 subfolder per year).

* There will be a 'blocks' folder in the data directory. This folder will contain a set of subfolders with numerical values, and in each of these subfolders there will be a numerical .dat file.
* Nodecore will automatically upgrade the existing data into the new format, prompting the user beforehand.

<pre>
mainnet/
  blocks/
    000/
      000.dat
      001.dat
      002.dat
      ...
</pre>

== Update getHistory command to show more transaction history ==
Address indexing option has been implemented. When enabled, the gethistory <address> command and API will return all the transactions affecting the given address.

* This option can be enabled with the ''blockchain.index.addresses=true'' configuration which is inside the nodecore.properties file


<div class="toccolours mw-collapsible mw-collapsed">
Output Sample...<div class="mw-collapsible-content">
<pre>
(VBK_CLI rpc (127.0.0.1:10501)) > gethistory V3AsJRSSSV7g6LVxMhgXuiBe15hhJK
gethistory V3AsJRSSSV7g6LVxMhgXuiBe15hhJK
[
  {
    "balance": "29.99934000",
    "blocks_mined": 0,
    "confirmed_transactions": [
      {
        "type": "signed",
        "signed": {
          "signature": "3046022100ACC31D34D3F8E7441BB136548D934708A05B0B5D4AA69ACADC42011FBDAEB623022100ECC020AC97975BDCFB3F547C27EF013B675718EA5B0C0A7DB7D6C9E5E1D8BA3A",
          "public_key": "3056301006072A8648CE3D020106052B8104000A034200044DEF8C9104AA0FD5CBA927925F657A03FCFA10755F36937DF7352EDAA8A965E46DCA8BDC91B85BABE135E4869DACBF2C28C905D0530903303A714F2093613C80",
          "signature_index": 0,
          "transaction": {
            "size": 67,
            "txid": "03849591FB273ED4818647EFDDF99CA87BEAFE2D329B7A26DEC56F8E145A0414",
            "data": "",
            "type": "standard",
            "fee": "0.00066000",
            "timestamp": 1581445506,
            "source_amount": "70.00066000",
            "merkle_path": "",
            "source_address": "V3AsJRSSSV7g6LVxMhgXuiBe15hhJK",
            "bitcoin_transaction": "N/A",
            "bitcoin_block_header_of_proof": "N/A",
            "endorsed_block_header": "N/A",
            "outputs": [
              {
                "address": "V5ePgM74AENVbpUt2FbVmqswdAh4hz",
                "amount": "70.00000000"
              }
            ]
          }
        }
      },
      {
        "type": "signed",
        "signed": {
          "signature": "3046022100A579F43EB1F2400650B760A4407C988F85ADE4D6AA596532EE4CBF6A8FEF82D2022100A630E4971B583160619269C350EB8541CED56D9D21CB14365180CA5DA23B0BCB",
          "public_key": "3056301006072A8648CE3D020106052B8104000A034200046C1750232449DA0E613E0516313AA1FEC64FCC03BDEC872EA3D5985D3AE36A1F35EAC6FB46CE2DCC2F25E6ADA7E4190D86BED0CC8B5AA6AAFE4D6B009D011CF9",
          "signature_index": 180,
          "transaction": {
            "size": 67,
            "txid": "4F92D3D2DC54952C4FF71325AAE68C192F9CC6BDC3DF891582371385C22920B6",
            "data": "",
            "type": "standard",
            "fee": "0.00066000",
            "timestamp": 1581445403,
            "source_amount": "100.00066000",
            "merkle_path": "",
            "source_address": "VGDavya9wLmU5EvKw2479VJT5HcfT9",
            "bitcoin_transaction": "N/A",
            "bitcoin_block_header_of_proof": "N/A",
            "endorsed_block_header": "N/A",
            "outputs": [
              {
                "address": "V3AsJRSSSV7g6LVxMhgXuiBe15hhJK",
                "amount": "100.00000000"
              }
            ]
          }
        }
      }
    ],
    "pending_transactions": []
  }
]
</pre>
</div>
</div>

== Officially shipping segwit ==
Segwit support has been officially shipped as part of VPM, with a lower operation failure rate. Previous wiki page: [[SegWit_PoP_Miner]]

* The BitcoinJ library has been updated to the latest version: [https://bitcoinj.github.io/release-notes 0.15.6]
* Fixed a bug that created multiple context objects while creating the bitcoinj's WalletAppKit, which increased unstability.
* There are a set of new '''experimental''' configurable parameters in the VeriBlock PoP Miner which may help users to reduce even more the failure rate:
** bitcoinj.minimal.peer.protocol.version
** bitcoinj.max.peer.connections
** bitcoinj.peer.discovery.timeout.millis
** bitcoinj.peer.download.tx.dependency.depth
** bitcoinj.required.peer.services
** bitcoinj.min.peer.broadcast.connections
** bitcoinj.max.peers.to.discover.count
** bitcoinj.peer.ping.interval.msec
You can find documentation about each of these options in [https://wiki.veriblock.org/index.php/HowTo_run_PoP_Miner#ncpop.properties_Reference the VPM's documentation page]

== Updated PoP Miner API ==
PoP Miner API has been reworked (breaking changes):

* It is closer to the standards (e.g. now it requires the header -H "Content-Type: application/json" when sending a JSON body).
* Quit API now supports restart code optionally with "/api/quit?restart=true".
* Restart quit is now supported on the windows bat file.
* The API documentation is now accessible through the "/apidocs" API call which by default is accessible through the url: localhost:8600/apidocs

== Updated CLI and VPM shell ==
Major rework of applications' shell (CLI and VPM):

* Shell now is able to display the normal logs in addition to the shell color-printed messages, so there will be more logs.
* Common logs are colored depending on the severity level.
* Ability to separately configure the console and files logging level through environment variables:
** You can use the next logging levels for all the next environment variables: ERROR, WARN, INFO, DEBUG, TRACE, ALL or OFF
** Nodecore environment variables: NODECORE_LOG_LEVEL, NODECORE_CONSOLE_LOG_LEVEL
** VeriBlock PoP Miner environment variables: VPM_LOG_LEVEL, VPM_CONSOLE_LOG_LEVEL
** AltChain PoP Miner environment variables: APM_LOG_LEVEL, APM_CONSOLE_LOG_LEVEL

== Updated CLI command getDiagnosticInfo == 

Added environment variables in the NodeCore diagnostic info.
* The command getdiagnosticinfo now will display the used command line to start the NodeCore instance and the environment variables.

== Other ==
* Optimized data stored in block storage to shrink from 60 GB to 23GB
* When booting up and loading the blockchain a progress bar will be displayed.
* NodeCore's logging is now much less verbose. To enable verbosity, use the "NODECORE_CONSOLE_LOG_LEVEL=DEBUG" environment variable.

== Bootstrap Downloader ==

See: [[Bootstrap_Downloader]]

While the blockchain can always sync from scratch, this is an embedded utility to download blocks for faster sync of a full node.