Examples with InstanceId org.voltcore.utils.InstanceId used on opensource projects

Example 6 with InstanceId

use of org.voltcore.utils.InstanceId in project voltdb by VoltDB.

the class HostMessenger method getInstanceId.

/**
     * Get a unique ID for this cluster
     * @return
     */
public InstanceId getInstanceId() {
    if (m_instanceId == null) {
        try {
            byte[] data = m_zk.getData(CoreZK.instance_id, false, null);
            JSONObject idJSON = new JSONObject(new String(data, "UTF-8"));
            m_instanceId = new InstanceId(idJSON.getInt("coord"), idJSON.getLong("timestamp"));
        } catch (Exception e) {
            String msg = "Unable to get instance ID info from " + CoreZK.instance_id;
            m_hostLog.error(msg);
            throw new RuntimeException(msg, e);
        }
    }
    return m_instanceId;
}