Ceph Docker better support for Bluestore
I have been extensively working on ceph-docker for the last few months and it’s getting better. With the upcoming arrival of Ceph Luminous (next LTS), Bluestore will be the default backend to store objects. Thus, I had to spend some time working on improving the support for Bluestore.
Now, if you want to prepare a device with Bluestore you can specify different device for:
OSD_DEVICE: device where data will be stored
OSD_BLUESTORE_BLOCK_DB: device that store RocksDB metadata
OSD_BLUESTORE_BLOCK_WAL: device that stores RocksDB write-ahead journal
See it in action, this is the command to prepare a Bluestore OSD:
$ docker run -d \
Soon, Bluestore will be the ‘real’ default and the
OSD_BLUESTORE=1 won’t be necessary anymore.
Hopefully, more posts coming soon :).