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From Amit Adhau <amit.ad...@globant.com>
Subject Kudu Storage size mismatch
Date Mon, 25 Apr 2016 17:12:28 GMT
Hi Kudu Team,

I have queries related to the kudu storage structure.

Few days back, we were able to restore the backup of kudu metadata and data
[almost 200GB] with loss of few data.

At present, if we look at the kudu tablet server dashboard the observations
are none of the parameters like overall mem-trackers(Memory (detail)),
overall memz(Memory (total)) or overall tablets On-disk size not crosses
4-5 GB, however the tablet server folders details are as per below;

Instance - 4.0k
Data - 185GB
Wals - 3.5GB
Tablet-meta - 472k
consensus-meta - 204k


1. Does the Data folder is the one which holds the actual data, if yes then
does the link on tablet server dashboard overall tablets On-disk size
should be in sync with data folder size or not?
2. What is the significance of folders 'Instance' and 'Consensus-meta'?
3. Using impala-shell or kudu properties can we find out the size of the
specific tables directly?

Thanks & Regards,

*Amit Adhau* | Data Architect

*GLOBANT* | IND:+91 9821518132

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