kvserver: version gate the new StoreRebalancer implementation
#76702
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A-kv-distribution
Relating to rebalancing and leasing.
branch-release-22.1
Used to mark GA and release blockers, technical advisories, and bugs for 22.1
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T-kv
KV Team
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Hi @aayushshah15, please add a C-ategory label to your issue. Check out the label system docs. 🦉 Hoot! I am a Blathers, a bot for CockroachDB. My owner is otan. |
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Hi @aayushshah15, please add branch-* labels to identify which branch(es) this release-blocker affects. 🦉 Hoot! I am a Blathers, a bot for CockroachDB. My owner is otan. |
nvanbenschoten
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aayushshah15
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Apr 19, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
aayushshah15
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Apr 20, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
aayushshah15
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Apr 25, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
aayushshah15
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Apr 25, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
aayushshah15
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Apr 26, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
aayushshah15
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Apr 26, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
nvanbenschoten
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May 31, 2022
This commit introduces a set of deprecated store rebalancer methods corresponding to the pre-22.1 load-rebalancing scheme. Until a store detects that the version upgrade (to 22.1) has been finalized, the store will fall back to the old (pre-22.1) load-based rebalancing logic that wasn't locality aware. This is done in order to minimize risk of unexpected behavior in mixed version clusters. Resolves cockroachdb#76702 Release note: None
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We rewrote the load-based rebalancing scheme in #65379 and #72296. We'll need to version gate this implementation of the
StoreRebalancerfor mixed version settings and probably have mixed version clusters behave identically to 21.2 clusters in terms of their load-based rebalancing behavior.To this end, we should introduce a
DeprecatedStoreRebalancerthat is the 21.2 implementation and only switch to the new implementation after the version upgrade is finalized.Jira issue: CRDB-13240
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