Request latency blob_csi_driver_node_stage_volume

[mahmoudsamy27]

What happened: Mounted folder intermittently takes multiple seconds for the files to appear. I am mounting an Azure blob container using blob fuse.

What you expected to happen: Files to appear directly after mounting.

Anything else we need to know?:

Driver logs shows blob_csi_driver_node_stage_volume request latency, sometimes reaching 2.1 seconds.

0419 12:08:13.722102 4051656 azure_metrics.go:118] "Observed Request Latency" latency_seconds=2.169616285 request="blob_csi_driver_node_stage_volume" resource_group="rgname" subscription_id="" source="blob.csi.azure.com" volumeid="volumeidname" result_code="failed_csi_driver_node_stage_volume"

Environment:

• CSI Driver version:Driver Version: v1.24.9

Ask] what is the cause of the request latency and is there a way to avoid this

[andyzhangx]

@mahmoudsamy27 can you provide the logs of blob csi driver on that node?

[andyzhangx]

not csi driver issue, pls check on https://github.com/Azure/azure-storage-fuse/issues, mount latency as ~2s is sometimes expected when there are large amount of files to mount