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cephfs: add read affinity mount option

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This commit makes use of crush location labels from node
labels to supply `crush_location` and `read_from_replica=localize`
options during mount. Using these options, cephfs
will be able to redirect reads to the closest OSD,
improving performance.

Signed-off-by: Praveen M <m.praveen@ibm.com>
This commit is contained in:
Praveen M
2023-11-17 11:59:00 +05:30
committed by mergify[bot]
parent 6446150e67
commit 4d466843b9
13 changed files with 104 additions and 38 deletions
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5
internal/util/read_affinity.go
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@ -48,7 +48,8 @@ func ConstructReadAffinityMapOption(crushLocationMap map[string]string) string {
// If not, it falls back to returning the `cliReadAffinityMapOptions` from the command line.
// If neither of these options is available, it returns an empty string.
func GetReadAffinityMapOptions(
clusterID, cliReadAffinityMapOptions string, nodeLabels map[string]string,
csiConfigFile, clusterID, cliReadAffinityMapOptions string,
nodeLabels map[string]string,
) (string, error) {
var (
err error
@ -56,7 +57,7 @@ func GetReadAffinityMapOptions(
configCrushLocationLabels string
)
configReadAffinityEnabled, configCrushLocationLabels, err = GetCrushLocationLabels(CsiConfigFile, clusterID)
configReadAffinityEnabled, configCrushLocationLabels, err = GetCrushLocationLabels(csiConfigFile, clusterID)
if err != nil {
return "", err
}