Memberlist now forwards only changes, not full original received message #4419
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…age. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>
pstibrany
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Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>
Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>
joe-elliott
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Aug 13, 2021
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pracucci
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Aug 16, 2021
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bboreham
reviewed
Sep 2, 2021
| @@ -19,6 +19,7 @@ | |||
| * Users only have control of the HTTP header when Cortex is not frontend by an auth proxy validating the tenant IDs | |||
| * [CHANGE] Some files and directories created by Mimir components on local disk now have stricter permissions, and are only readable by owner, but not group or others. #4394 | |||
| * [CHANGE] Compactor: compactor will no longer try to compact blocks that are already marked for deletion. Previously compactor would consider blocks marked for deletion within `-compactor.deletion-delay / 2` period as eligible for compaction. #4328 | |||
| * [CHANGE] Memberlist: forward only changes, not entire original message. #4419 | |||
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Why is this listed as a breaking change?
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It’s a change, but not a breaking one. I guess it could be moved under BUGFIX, as it fixes problem with messages looping in the gossip network forever.
alvinlin123
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Jan 14, 2022
…age (cortexproject#4419) * Memberlist now forwards only changes, not full original received message. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * CHANGELOG.md entry Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> * Ignore linter here. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com> Signed-off-by: Alvin Lin <alvinlin@amazon.com>
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What this PR does: This PR modifies memberlist KV client such that when it receives message via
NotifyMsg, which changes current state of the KV store, it doesn't forward entire message, but only sub-message with changes. This helps in some clusters to get rid of unwanted messages with tombstones, which currently DO generate a change (this is bug, PR incoming) and then retransmit even the part of message that hasn't changed anything. This can in some situations bring back ingester instances in the ring, which should be long forgotten.Checklist
CHANGELOG.mdupdated - the order of entries should be[CHANGE],[FEATURE],[ENHANCEMENT],[BUGFIX]