HDFS Balancer on Oracle Big Data Appliance Frequently Asked Questions (FAQ)
(Doc ID 2146339.1)
Last updated on AUGUST 25, 2020
Applies to:Big Data Appliance Integrated Software - Version 4.2.0 and later
HDFS Balancer frequently asked questions.
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document
|Questions and Answers|
|Why would it appear that the bandwidth option is not working?|
|What property should be set to increase the number of threads for the balancer job?|
|If the balancer is run in the background is it possible to modify the configuration during balancer execution to increase parameters to speed balancing up?|
|If the balancer configuration is changed while the balancer is running what is the impact?|
|What happens if a DataNode goes down while the balancer is running?|
|Can the rebalance be stopped manually?|
|Is it possible to switch from running the balancer in the background to running the balancer with maximum speed in the middle of a rebalance by stopping the current running rebalance?|
|If the balancer does not run in the background, so that it runs as fast as possible, is there any impact on cluster services?|
|Should the cluster be in a healthy state before running the balancer?|
|Is it normal for the balancer to trigger warnings on the DataNodes?|