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From GitBox <...@apache.org>
Subject [GitHub] [fluo-muchos] arvindshmicrosoft commented on issue #270: Support Accumulo installs on Microsoft Azure
Date Fri, 16 Aug 2019 18:31:11 GMT
arvindshmicrosoft commented on issue #270: Support Accumulo installs on Microsoft Azure
URL: https://github.com/apache/fluo-muchos/pull/270#issuecomment-522108148
 
 
   Thanks, @keith-turner for the details. m5d.xlarge has 1 ephemeral disk (as you said) and
d2.xlarge has 3. Based on this, default_data_dirs has just the '/media/ephemeral0' location,
while worker_data_dirs has all 3 ephemeral disks. 
   
   Now, unfortunately it looks like the previous Zookeeper and Hadoop roles were loosely using
worker_data_dirs, and our changes continued using worker_data_dirs. From our understanding
of the implementation, all references on the leader nodes should only be using default_data_dirs.
This appears to be a latent bug which has been uncovered indirectly now. 
   
   To unblock, if you use a homogenous cluster with a common instance type across leaders
and workers it would workaround this issue, but @karthick-rn and I discussed and we feel we
should address the latent bug. Only question is when: would you prefer we create a new issue
and we will address that in the next week or so with a fresh PR, or would you prefer we bundle
the fix for this new (latent) bug as part of this existing PR itself?

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