From Quincy on, LevelDB is not supported anymore:
LevelDB support has been removed. WITH_LEVELDB is no longer a supported build option. Users should migrate their monitors and OSDs to RocksDB before upgrading to Quincy.
You'll need to rebuild your MONs one after the other, there's no way to migrate. This would be an easy task with cephadm, just saying. ;-) https://docs.ceph.com/en/latest/releases/quincy/ Zitat von Iban Cabrillo <cabrillo@ifca.unican.es>:
Hello again guys,
In the end, I've decided to do it manually. I know it's more tedious, but I control every step I take. The migration between Octopus and Pacific went without any problems. However, I now see that the monitors, at least, are using leveldb:
cephmon01:~ # cat /var/lib/ceph/mon/ceph-cephadm/kv_backend leveldb
The OSDs, I believe, are running rocksdb:
cephosd22:~ # ceph daemon osd.73 config show| grep -i RocksDB "bluestore_kvbackend": "rocksdb", "bluestore_rocksdb_cf": "true", "bluestore_rocksdb_cfs": "m(3) p(3,0-12) O(3,0-13)=block_cache={type=binned_lru} L P", "bluestore_rocksdb_options": "compression=kNoCompression,max_write_buffer_number=4,min_write_buffer_number_to_merge=1,recycle_log_file_num=4,write_buffer_size=268435456,writable_file_max_buffer_size=0,compaction_readahead_size=2097152,max_background_compactions=2,max_total_wal_size=1073741824", "bluestore_rocksdb_options_annex": "", "debug_rocksdb": "4/5", "filestore_omap_backend": "rocksdb",
Is there any way to migrate the monitors?"
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