bc9780baad
* Added rate limiting for agent RPC calls. * Initializes the rate limiter based on the config. * Adds the rate limiter into the snapshot RPC path. * Adds unit tests for the RPC rate limiter. * Groups the RPC limit parameters under "limits" in the config. * Adds some documentation about the RPC limiter. * Sends a 429 response when the rate limiter kicks in. * Adds docs for new telemetry. * Makes snapshot telemetry look like RPC telemetry and cleans up comments.
29 lines
949 B
Go
29 lines
949 B
Go
package structs
|
|
|
|
import (
|
|
"errors"
|
|
"strings"
|
|
)
|
|
|
|
const (
|
|
errNoLeader = "No cluster leader"
|
|
errNoDCPath = "No path to datacenter"
|
|
errNoServers = "No known Consul servers"
|
|
errNotReadyForConsistentReads = "Not ready to serve consistent reads"
|
|
errSegmentsNotSupported = "Network segments are not supported in this version of Consul"
|
|
errRPCRateExceeded = "RPC rate limit exceeded"
|
|
)
|
|
|
|
var (
|
|
ErrNoLeader = errors.New(errNoLeader)
|
|
ErrNoDCPath = errors.New(errNoDCPath)
|
|
ErrNoServers = errors.New(errNoServers)
|
|
ErrNotReadyForConsistentReads = errors.New(errNotReadyForConsistentReads)
|
|
ErrSegmentsNotSupported = errors.New(errSegmentsNotSupported)
|
|
ErrRPCRateExceeded = errors.New(errRPCRateExceeded)
|
|
)
|
|
|
|
func IsErrRPCRateExceeded(err error) bool {
|
|
return strings.Contains(err.Error(), errRPCRateExceeded)
|
|
}
|