/** Shut down the cluster */
public void shutDown() throws IOException, InterruptedException {
System.out.println("Shutting down the Mini Avatar Cluster");
// this doesn't work, so just leave the datanodes running,
// they won't interfere with the next run
shutDownDataNodes();
shutDownAvatarNodes();
}
/*
* Restart all datanodes
*/
public synchronized boolean restartDataNodes() throws IOException, InterruptedException {
shutDownDataNodes();
int i = 0;
for (DataNodeProperties dn : dataNodes) {
i++;
LOG.info("Restart Datanode " + i);
dn.datanode = AvatarDataNode.instantiateDataNode(dn.dnArgs, new Configuration(dn.conf));
dn.datanode.runDatanodeDaemon();
}
return true;
}
