Add eviction_state to control file #8125
Merged
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This is a preparation for #8022, to make the PR both backwards and foward compatible.
This commit adds
eviction_state
field to control file. Adds support for reading it, but writes control file in old format where possible, to keep the disk format forward compatible.Note: in
patch_control_file
, new field gets serialized to json like this:"eviction_state": "Present"
"eviction_state": {"Offloaded": "0/8F"}