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From Konstantin Shvachko <...@yahoo-inc.com>
Subject Re: displaying decommissioned node in dfshealth.jsp
Date Thu, 05 Feb 2009 18:35:37 GMT
Did you look at the name-node web UI?
What does it say about decommissioned nodes?

Bill Au wrote:
> Right now a decommissioned datanode shows up as a dead datanode in
> dfshealth.jsp.  I went into a case where a datanode failed after I have
> decomissioned another datanode in the same Hadoop cluster.  They both show
> up as dead datanodes, and the operation folks don't know which is which.  I
> noticed that dfsadmin -report does show the admin state of the
> decommissioned datanode as "Decommissioned".  So I am thinking that if we
> add a "Admin State" column in the Dead Datanodes table in dfshealth.jsp
> (similar to the existing Admin State column in the Live Datanodes table), it
> will be clear if a dead datanode was in service or was decommissioned.
> The change/addition to dfshealth.jsp is simple and straight forward.  I am
> willing to submit a patch via jira.  Should I go ahead?
> Bill

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