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From Dejan Menges <dejan.men...@gmail.com>
Subject DataNode does not start after changing RAID controller
Date Sat, 03 Oct 2015 18:18:09 GMT

We had situation that RAID controller died in one of our nodes, and we had
to change it obviously. After changing it, from system side all looks good,
but DataNode doesn't want to start start anymore:


Using HDP 2.2, Hadoop version is,

To be honest this happened first time to us, and I'm not quite sure how to
proceed. Probably removing content of folders would help to start datanode,
but that would kill our however bad data locality in this cluster.

Thanks a lot!


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