Hi Team , We are running big cluster ( 3000 nodes cluster ) , many time we are hitting Median Increasing to 99.99 % ( 80 % of the DN's ) . Balancer is running all time in cluster ..But still median is not coming down i.e < 90 % ..
Here is how i start balancer ? /apache/hadoop/sbin/start-balancer.sh -Ddfs.balance.bandwidthPerSec=104857600 *-threshold 30* What the recommended value for thershold ?? Is there any way to pass param only to move blocks from Over Utilized ( 98-100%) to under utilized ? Pls advise! Regards, Senthil
