Vhost
A unique integral identifier assigned to each physical node in a
LogScale cluster. Vhosts are short numeric identifiers
used to track nodes across various operations including segment
replication, ingest queue partition assignment, task
distribution, and debug log analysis. Each LogScale node
is assigned a vhost number (for example, 1, 2, or 3) that is
associated with the node's UUID in global storage. Vhost
assignment can be manual through environment variables like
BOOTSTRAP_HOST_ID, or automatic within the range
1-10000. The vhost identifier remains stable as long as the node
retains its cluster_membership.uuid file,
but ephemeral nodes with wiped disks may receive new vhost
assignments when rejoining the cluster.