Manage Orderer Nodes

This topic contains information about orderer nodes.

View and Edit the Orderer Node Configuration

An orderer node’s configuration determines how the node performs and behaves on the network.

Only administrators can change a node’s configuration. If you've got user permissions, then you can view a node’s configuration settings. See Orderer Node Attributes.
  1. Go to the console and select the Nodes tab.
  2. In the Nodes tab, go to the Nodes table, locate the orderer node that you want configuration information for, and click the node’s More Actions button.
  3. The configuration option is determined by your permissions. If you're an administrator, locate and click Edit Configuration. If you're a user, locate and click View.
    The Configure dialog is displayed.
  4. If you're an administrator, then modify the node’s settings as needed.
  5. Click Submit to save the configuration changes, or click X to close the Configure dialog.
  6. Restart the node to apply any changes that you made.

View Health Information for an Orderer Node

You can check an orderer node’s metrics to see how the node is performing on the blockchain network. This information helps you discover and diagnose performance problems.

The Health Overview pane displays these performance metrics: CPU utilization and memory utilization.
  1. Go to the console and select the Nodes tab.
  2. In the Nodes tab, click the name of the orderer node you want to see health information for.
    The Node Information page is displayed.
  3. Click the Health pane to view the node’s performance metrics.
    If the utilization percentages are consistently high, then contact Oracle Support. If the Disk Utilization percentage is too high, then the ledger might not get stored on the node properly.

View Log Files for an Orderer Node

You can access an orderer node’s log files for information about the node’s performance and any errors that have occurred. This information helps you discover, diagnose, and fix problems.

The node’s configuration determines the type and amount of information included in the log files. You can change the logging level if you've got administrator permissions. See Set the Log Level for a Node.
  1. Go to the console and select the Nodes tab.
  2. In the Nodes tab, click the name of the orderer node you want to get log files for.
    The Node Information page is displayed.
  3. Click the Logs pane. Note the following options:
    • Select a time range such as Last day or Last week that contains the logs you want to explore.
    • To specify your own time range, select Custom and then enter dates into the Start Time and End Time fields, or click the calendar icons and pick dates and times. Click Apply to query.
    If you select a specific time period (for example, Last day) and then select it again to re-run the query, the query doesn’t re-run. To get the latest information, click the Refresh button.
    The logs you requested are displayed in the Logs table where you can view or download them.
  4. In the Logs table, click a file’s Download option or select multiple log files and click the Download button to download the log files and open them in an application where you can search for specific information.
  5. Click the Current Log button to quickly find and open the most current log.