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Frequently Asked Questions

This document is an attempt to collect some of the questions frequently asked by the users of the LACChain Besu Network.

Table of Contents

  1. Frequently Asked Questions
    1. Table of Contents
    2. General Questions
      1. How to change the name of my organization in the ethStats?
      2. How to name my node in ethStats?
      3. I see my node name on the dashboard with a weird suffix "xxx"
      4. How to see Orion logs?
      5. Where are the Besu logs located?
      6. How do I get the enode?
      7. Why is my node not connecting to the lacchain?
      8. Why did my node stop syncing blocks?
      9. How do I change the log level in Besu
      10. How much is the price of gas in LACChain?

General Questions

How to change the node's name in the ethStats?

To change the name of your node you can follow this instructions to set the new name (different from the previous one) in the "--node_name" flag.

How to name my node in ethStats?

Before installing the node in the inventory file, you can set the name of the node in the "node_name" variable. More information here.

I see my node name on the dashboard with a weird suffix "xxx"

To eliminate the suffix it is necessary that you send us an email to info@lacchain.net indicating that you require that the current name generated for the node be reset.

How to see Orion logs?

Execute the following command to see the logs generated by Orion:

$ journalctl -fu orion.service

Where are the Besu logs located?

Besu's log files are located in the /root/lacchain/logs folder divided into INFO, DEBUG and ERROR

How do I get the enode?

To obtain the enode you can follow the instructions here.

Why is my node not connecting to the lacchain?

Check the following:

  • If the node was not permissioned, you can see the instructions to get your node permissioned here.
  • Verify that the input and output IP is the same with which the node was permissioned.
  • Verify the firewall allows connections UDP and TCP through port 60606

Why did my node stop syncing blocks?

First check that your node is connected to the LACChain network, if so then consider the following:

  • Verify that the IP has not changed and the firewall allows TCP and UDP connections through port 60606.
  • In case the node is deployed in a private data center, verify that the NTP server is synchronized with the Google, Amazon or Microsoft cloud servers.
  • Verify that the list of bootnodes is the same as the bootnodes parameter in this file.
  • Please verify that you have enough disk space with the following command:
$ \df -TH

How do I change the log level in Besu?

  • Open the log.xml file located in the /root/lacchain folder with a text editor
  • Now in the last lines you can change the level property to info, debug, error, trace or all.
    <Root level="all">
      <AppenderRef ref="infoLog" />
      <AppenderRef ref="debugLog" />
      <AppenderRef ref="errorLog" />
    </Root>

Note: Getting the trace log will slow down the behavior of the node

How much is the price of gas in LACChain?

Gas price is 0. You do not need to buy a token or pay a transaction fee to deploy contracts or send transactions.