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From Omri Cohen <Omri_co...@outlook.com>
Subject Mob reference tags go missing
Date Sat, 17 Aug 2019 13:28:59 GMT

We recently encountered a problem in our production hbase cluster.
We have a cluster with a high mob percentage ( > 50% of objects are MOB, the threshold
is the default 102400 bytes). The cluster has been active for about a year. Recently, our
clients started to receive the mob reference instead of the mob data when trying to access
certain rows (in most tables about 10% of the rows are bad, in one table it is about 50% of

When we investigated the HFiles, we saw that the "bad" cells are missing two tags that exist
in the "good" rows, it looks something like that:

  • Unnamed multipart/alternative (inline, None, 0 bytes)
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