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From Hanisha Koneru <hkon...@cloudera.com.INVALID>
Subject Deprecate LevelDB support on Datanodes
Date Mon, 06 Jul 2020 19:52:53 GMT
Hi All,

We are planning to deprecate support for LevelDB on Datanodes from 0.6.0 release onwards (https://issues.apache.org/jira/browse/HDDS-3914
<https://issues.apache.org/jira/browse/HDDS-3914>).

Containers are currently storing all information in the “default” column family. This
includes BlockData and other metadata such as Bytes Used, Block Count etc. Hence the default
column family does not have a defined structure. We plan to separate the BlockData and Metadata
into separate column families. This would not be possible on LevelDB as it does not support
column families. 


Thanks
Hanisha
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