Files
tasks/service/history/queues/reader_quotas.go
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

69 lines
1.8 KiB
Go

package queues
import (
"strconv"
"go.temporal.io/server/common/dynamicconfig"
"go.temporal.io/server/common/quotas"
)
const (
readerRequestToken = 1
)
func NewReaderPriorityRateLimiter(
rateFn quotas.RateFn,
maxReaders int64,
) quotas.RequestRateLimiter {
rateLimiters := make(map[int]quotas.RequestRateLimiter, maxReaders)
readerCallerToPriority := make(map[string]int, maxReaders)
for readerId := DefaultReaderId; readerId != DefaultReaderId+maxReaders; readerId++ {
// use readerId as priority
rateLimiters[int(readerId)] = quotas.NewRequestRateLimiterAdapter(quotas.NewDefaultOutgoingRateLimiter(rateFn))
// reader will use readerId (in string type) as caller when using the rate limiter
readerCallerToPriority[newReaderRequest(readerId).Caller] = int(readerId)
}
lowestPriority := int(DefaultReaderId + maxReaders - 1)
return quotas.NewPriorityRateLimiter(
func(req quotas.Request) int {
if priority, ok := readerCallerToPriority[req.Caller]; ok {
return priority
}
return lowestPriority
},
rateLimiters,
)
}
func newShardReaderRateLimiter(
shardMaxPollRPS dynamicconfig.IntPropertyFn,
hostReaderRateLimiter quotas.RequestRateLimiter,
maxReaders int64,
) quotas.RequestRateLimiter {
return quotas.NewMultiRequestRateLimiter(
NewReaderPriorityRateLimiter(
func() float64 { return float64(shardMaxPollRPS()) },
maxReaders,
),
hostReaderRateLimiter,
)
}
func newReaderRequest(
readerID int64,
) quotas.Request {
// The priority is only based on readerID (caller),
// api, caller type, caller segment, and call initiation (origin)
// are the same for all the readers, and not related to
// priority so leaving those fields empty.
return quotas.NewRequest(
"",
readerRequestToken,
strconv.FormatInt(readerID, 10),
"",
0,
"",
)
}