int cid = db.getClusterIdByName(name); // undocumented: if cluster not exists, returns -1
if (cid == -1) {
cid = db.addCluster(name);
final OSchema schema = db.getMetadata().getSchema();
final OClass type = schema.getClass(DB_CLASS);
type.addClusterId(cid);
log.info("Created new journal cluster; id: {}, name: {}", cid, name);
}
else {
log.debug("Journal cluster exists; id: {}, name: {}", cid, name);
}