grafana/pkg/setting/setting_data_proxy.go
Marcus Efraimsson 1c892a2fc4
Postgres/MySQL/MSSQL: Add setting to limit maximum amount of rows processed (#38986)
Adds a new setting dataproxy.row_limit that allows an operator to limit the 
amount of rows being processed/accepted in response to database queries 
originating from SQL data sources.

Closes #38975
Ref #39095

Co-authored-by: achatterjee-grafana <70489351+achatterjee-grafana@users.noreply.github.com>
2021-09-13 15:27:51 +02:00

33 lines
1.5 KiB
Go

package setting
import "gopkg.in/ini.v1"
const defaultDataProxyRowLimit = int64(1000000)
func readDataProxySettings(iniFile *ini.File, cfg *Cfg) error {
dataproxy := iniFile.Section("dataproxy")
cfg.SendUserHeader = dataproxy.Key("send_user_header").MustBool(false)
cfg.DataProxyLogging = dataproxy.Key("logging").MustBool(false)
cfg.DataProxyTimeout = dataproxy.Key("timeout").MustInt(10)
cfg.DataProxyDialTimeout = dataproxy.Key("dialTimeout").MustInt(30)
cfg.DataProxyKeepAlive = dataproxy.Key("keep_alive_seconds").MustInt(30)
cfg.DataProxyTLSHandshakeTimeout = dataproxy.Key("tls_handshake_timeout_seconds").MustInt(10)
cfg.DataProxyExpectContinueTimeout = dataproxy.Key("expect_continue_timeout_seconds").MustInt(1)
cfg.DataProxyMaxConnsPerHost = dataproxy.Key("max_conns_per_host").MustInt(0)
cfg.DataProxyMaxIdleConns = dataproxy.Key("max_idle_connections").MustInt()
cfg.DataProxyIdleConnTimeout = dataproxy.Key("idle_conn_timeout_seconds").MustInt(90)
cfg.ResponseLimit = dataproxy.Key("response_limit").MustInt64(0)
cfg.DataProxyRowLimit = dataproxy.Key("row_limit").MustInt64(defaultDataProxyRowLimit)
if cfg.DataProxyRowLimit <= 0 {
cfg.DataProxyRowLimit = defaultDataProxyRowLimit
}
if val, err := dataproxy.Key("max_idle_connections_per_host").Int(); err == nil {
cfg.Logger.Warn("[Deprecated] the configuration setting 'max_idle_connections_per_host' is deprecated, please use 'max_idle_connections' instead")
cfg.DataProxyMaxIdleConns = val
}
return nil
}