rg
Subject: Re: hdfs question when replacing dead node...
The block reports are every hour by default. They should not cause any
false negatives for replication on NN.
Andy's observation is not expected AFIK.
Andy, please check if you can repeat it.. if it happens again, please
file a j
The block reports are every hour by default. They should not cause any
false negatives for replication on NN.
Andy's observation is not expected AFIK.
Andy, please check if you can repeat it.. if it happens again, please
file a jira and you can attach your relevant log files there. We have
How fast did you re-run fsck after re-joining the node? fsck returns data
based on the latest block reports from datanodes -- these are scheduled to
run (I think) every 15 minutes, so the NameNode's state on block replication
may be as much as 15 minutes out of date.
- Aaron
On Thu, Jul 23, 2009
I recently had to replace a node on a hadoop 0.20.0 4-node cluster and I
can't quite explain what happened. If anyone has any insight I'd appreciate it.
When the node failed ( drive failure ) running the command 'hadoop fsck /'
correctly showed the data nodes to now be 3 instead of 4 and
