/** Log the over utilized & under utilized nodes */
private void logImbalancedNodes() {
if (LOG.isInfoEnabled()) {
int underUtilized = 0, overUtilized = 0;
for (BalancerDatanode node : this.datanodes.values()) {
if (isUnderUtilized(node)) underUtilized++;
else if (isOverUtilized(node)) overUtilized++;
}
StringBuilder msg = new StringBuilder();
msg.append(overUtilized);
msg.append(" over utilized nodes:");
for (BalancerDatanode node : this.datanodes.values()) {
if (isOverUtilized(node)) {
msg.append(" ");
msg.append(node.getName());
}
}
LOG.info(msg);
msg = new StringBuilder();
msg.append(underUtilized);
msg.append(" under utilized nodes: ");
for (BalancerDatanode node : this.datanodes.values()) {
if (isUnderUtilized(node)) {
msg.append(" ");
msg.append(node.getName());
}
}
LOG.info(msg);
}
}
/** Log node utilization after the plan execution */
private void logPlanOutcome() {
if (LOG.isInfoEnabled()) {
LOG.info(
"Predicted plan outcome: bytesLeftToMove: "
+ bytesLeftToMove
+ ", bytesToMove: "
+ bytesToMove);
for (BalancerDatanode node : this.datanodes.values()) {
LOG.info(node.getName() + " remaining: " + node.getCurrentRemaining());
}
}
}
