kvserver: re-add spuriously removed nil check in relocateOne
#61094
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nvanbenschoten
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Not that it matters, but I think this was actually removed in bce8317.
Reviewed 1 of 1 files at r1.
Reviewable status:complete! 1 of 0 LGTMs obtained
e924d91 introduced a bug by spuriously removing a nil check over the result of a call to `allocateTargetFromList`. This commit re-adds the check. The bug could cause a panic when `AdminRelocateRange` was called by the `StoreRebalancer` or the `mergeQueue` if one (or more) of the stores that are supposed to receive a replica for a range become unfit for receiving the replica (due to balancing reasons / or shifting constraints) _between when rebalancing decision is made and when it's executed_. Resolves cockroachdb#60812 Release justification: fixes bug that causes a panic Release note: None
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TFTR! bors r+ |
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bce8317 introduced a bug by spuriously
removing a nil check over the result of a call to
allocateTargetFromList. This commit re-adds the check.The bug could cause a panic when
AdminRelocateRangewas called by theStoreRebalanceror themergeQueueif one (or more) of the storesthat are supposed to receive a replica for a range become unfit for
receiving the replica (due to balancing reasons / or shifting
constraints) between when rebalancing decision is made and when it's
executed.
Resolves #60812
Release justification: fixes bug that causes a panic
Release note: None