How does ApexSQL Log handle failover in a clustered environment?
It depends on whether the ApexSQL Log client is running on the active node or if it is running outside of the cluster. In the first case you will have to have the same configuration (e.g. batch files for command line interface) on each node in the cluster. When the failover happens, log auditing on the new active node will need to be started manually. In the second case, when the application is running outside of the cluster, it will be automatically redirected by the cluster itself to the active node (same as all other applications running outside of the cluster.) In both cases you will need to install and activate server-side components on each node in the cluster.
