|| at Dec 16, 2010 at 7:42 am
You can use metasave to check the bottleneck of decommion speed,
If the bottleneck is the speed of namenode dispatch. You can tuning
dfs.max-repl-streams to a large number (default 2).
If there're many timeout block replication tasks from pending replication
queue to need replication , you can tuning
dfs.replication.pending.timeout.sec to a smaller numer, to make block
replcation more positive.
Pay attention!! Please check your hadoop version, if block transfer has no
speed limit, the bandwidth may be stuff full
Thanks & Best regards
2010/12/16 sravankumar <[email protected]
Does any one know how to speed up datanode decommissioning and
what are all the configurations
related to the decommissioning.
How to Speed Up Data Transfer from the Datanode getting
Thanks & Regards,