WildFly CLI - Taking and Restoring Configuration Snapshots

Internal

• CLI Operations

Relevance

EAP 6.4

Overview

This article describes the procedure of taking a standalone instance configuration snapshot, usually performed before a significant CLI-based reconfiguration of the application server and restoring the initial configuration in case of re-configuration failure. This mechanism relies on the fact that the application server maintains a history of its past configurations, and it is capable of taking configuration snapshots. More details about this mechanism are available here:

WildFly Configuration History

Take a Configuration Snapshot

Before applying a configuration change - or a set of configuration changes - that could destabilize the application server instance, take a configuration snapshot as described below.

Connect to the application server with the CLI. More details on how to connect to the application server instance are available here: Connect to a Controller.

Take a configuration snapshot as follows:

[standalone@localhost:9999 /] cd /
[standalone@localhost:9999 /] :take-snapshot
{
    "outcome" => "success",
    "result" => "./configuration/standalone_xml_history/snapshot/20160331-205313510standalone.xml"
}