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From Calvin Feder <>
Subject Moving HDFS name node to another host in accumulo 1.6
Date Sat, 17 Jan 2015 00:29:26 GMT
We need to move the HDFS name node of our cluster to a new host (the old host is experiencing
hardware issues and may die at any time).  We need to keep the current accumulo data.  We
are trying to do it in a test environment and running into numerous issues. We stopped the
cluster, moved the name node to a new host, and restarted the cluster.  We changed the entry
in zookeeper for the accumulo root tablet to the new location, and got accumulo to start.
 We see all of the tables we expected to see in accumulo, and they show up in the monitor
as "online", but the monitor shows that no tablets or entries exist in those tables, and obviously
we cannot scan them.

This is an example of what we are seeing:


Has anyone tried to do something similar?  What are we missing?

Thank you,
Calvin Feder | QA Lead | Argyle Data, Inc.


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