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feat: implement automatic region failure detector registrations (#6370)

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* feat: implement automatic region failure detector registrations

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: remove unused error

Signed-off-by: WenyXu <wenymedia@gmail.com>

* test: add more tests

Signed-off-by: WenyXu <wenymedia@gmail.com>

* feat: add `region_failure_detector_initialization_delay` option

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: update config.md

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: apply suggestions from CR

Signed-off-by: WenyXu <wenymedia@gmail.com>

* chore: update config.md

Signed-off-by: WenyXu <wenymedia@gmail.com>

---------

Signed-off-by: WenyXu <wenymedia@gmail.com>
This commit is contained in:
Weny Xu
2025-06-24 14:12:12 +08:00
committed by GitHub
parent 116d5cf82b
commit 24019334ee
8 changed files with 319 additions and 35 deletions
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7
config/metasrv.example.toml
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@@ -43,6 +43,13 @@ use_memory_store = false
## - Using shared storage (e.g., s3).
enable_region_failover = false
## Delay before initializing region failure detectors.
## This delay helps prevent premature initialization of region failure detectors in cases where
## cluster maintenance mode is enabled right after metasrv starts, especially when the cluster
## is not deployed via the recommended GreptimeDB Operator. Without this delay, early detector registration
## may trigger unnecessary region failovers during datanode startup.
region_failure_detector_initialization_delay = '10m'
## Whether to allow region failover on local WAL.
## **This option is not recommended to be set to true, because it may lead to data loss during failover.**
allow_region_failover_on_local_wal = false