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Code Activity

fix: fixes ring.SetAddrs and rebalance race (#2283)

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* fix: fixes ring.SetAddrs and rebalance race

The change ensures atomic update of `c.hash` and `c.shards`.

`BenchmarkRingRebalanceLocked` shows rebalance latency:
```
go test . -run=NONE -bench=BenchmarkRingRebalanceLocked -v -count=10 | benchstat /dev/stdin
name                   time/op
RingRebalanceLocked-8  8.50µs ±14%
```

(Note: it essentially reverts a46b053aa6)
This commit is contained in:
Alexander Yastrebov
2022-11-21 10:00:00 +01:00
committed by GitHub
parent bbff4dd5dc
commit d83436b321
3 changed files with 110 additions and 24 deletions
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7
export_test.go
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@ -95,9 +95,6 @@ func GetSlavesAddrByName(ctx context.Context, c *SentinelClient, name string) []
}
func (c *Ring) ShardByName(name string) *ringShard {
return c.sharding.ShardByName(name)
}
func (c *ringSharding) ShardByName(name string) *ringShard {
return c.shards.m[name]
shard, _ := c.sharding.GetByName(name)
return shard
}