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Posted to dev@ozone.apache.org by runzhiwang <ru...@gmail.com> on 2020/06/14 00:08:46 UTC

[DISCUSSION] Merge or Remove Rocksdb in datanode ?

Hi all,
  One rocksdb for each container in datanode cost too much off-heap memory.
There are too choices to handle this: Merge Rocksdb or Remove Rocksdb, the
design doc of these two choices:
https://docs.google.com/document/d/18Ybg-NjyU602c-MYXaJHP6yrg-dVMZKGyoK5C_pp1mM/edit#.
And the jira is https://issues.apache.org/jira/browse/HDDS-3630.
  I would prefer to Merge Rocksdb, because Remove Rocksdb really is a big
work and also needs to do some work which could be done by rocksdb.  The
shortage of Remove Rocksdb is in the design doc.
  If there are no concerns, I will merge Rocksdb in datanode.


Thanks,
runzhiwang