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remote-write: adjust MaxShards and Capacity for larger MaxSamplesPerSend

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Keep the target throughput and total pending samples the same.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
This commit is contained in:
Bryan Boreham 2023-04-02 11:00:14 +01:00
parent 2fc2e233a6
commit 889ef998f4
1 changed files with 7 additions and 7 deletions
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14
config/config.go
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@ -173,16 +173,16 @@ var (
// DefaultQueueConfig is the default remote queue configuration.
DefaultQueueConfig = QueueConfig{
// With a maximum of 200 shards, assuming an average of 100ms remote write
// time and 2000 samples per batch, we will be able to push 4M samples/s.
MaxShards: 200,
// With a maximum of 50 shards, assuming an average of 100ms remote write
// time and 2000 samples per batch, we will be able to push 1M samples/s.
MaxShards: 50,
MinShards: 1,
MaxSamplesPerSend: 2000,
// Each shard will have a max of 2500 samples pending in its channel, plus the pending
// samples that have been enqueued. Theoretically we should only ever have about 3000 samples
// per shard pending. At 200 shards that's 600k.
Capacity: 2500,
// Each shard will have a max of 10,000 samples pending in its channel, plus the pending
// samples that have been enqueued. Theoretically we should only ever have about 12,000 samples
// per shard pending. At 50 shards that's 600k.
Capacity: 10000,
BatchSendDeadline: model.Duration(5 * time.Second),
// Backoff times for retrying a batch of samples on recoverable errors.