/** Checks if the DFOs associated with logical node list are currently empty. */
boolean areDFOsEmpty(Collection<LogicalNode> lns) {
for (LogicalNode n : lns) {
DiskFailoverManager dfo = FlumeNode.getInstance().getDFOManager(n.getName());
if (!dfo.isEmpty()) return false;
}
return true;
}
boolean areDFOsReconfigured(Collection<LogicalNode> lns) {
for (LogicalNode n : lns) {
long val = n.getMetrics().getLongMetric(LogicalNode.A_RECONFIGURES);
if (val == 0) {
return false;
}
}
return true;
}
/**
* 여기에 위치하는게 맞나?
*
* @throws IOException
* @throws InterruptedException
* @throws RuntimeException
* @throws FlumeSpecException
*/
public void recover()
throws IOException, InterruptedException, RuntimeException, FlumeSpecException {
LogicalNode logicalNode = FlumeNode.getInstance().getLogicalNodeManager().get(logicalNodeName);
if (logicalNode == null) {
log.error("Failed recover [" + logicalNodeName + "] is not registed in CheckpointManager");
return;
}
log.info("Closing logicalNode[" + logicalNodeName + "]");
logicalNode.close();
log.info("Closed logicalNode[" + logicalNodeName + "]");
log.info("Restarting LogicalNode [" + logicalNodeName + "]");
logicalNode.restartNode();
log.info("Finished LogicalNode [" + logicalNodeName + "]");
}