backupccl: 8tb online restore link phase is about 4x slower than expected #124346
Labels
A-disaster-recovery
C-bug
Code not up to spec/doc, specs & docs deemed correct. Solution expected to change code/behavior.
T-disaster-recovery
Projects
Last time we ran a working 8tb online restore, the link phase took about 15 minutes. If you pull the latest master binary from master and run an 8tb tpcc online restore (fixture in
cockroach-fixtures-us-east1/backups/tpc-c/v24.1/db/warehouses=150k
), the link phase takes over an hour. several cpu profiles suggest we're computing mvcc stats, which should not be happening. Further investigation is required to get to the bottom of this:Jira issue: CRDB-38840
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