cc-metric-collector/collectors/lustreMetric.md

lustrestat collector

  "lustrestat": {
    "lctl_command": "/path/to/lctl",
    "exclude_metrics": [
      "lustre_setattr",
      "lustre_getattr"
    ],
    "only_metrics": [
      "lustre_read_bytes",
      "lustre_read_bytes_diff",
      "lustre_read_bw",
      "lustre_open",
      "lustre_open_diff"
    ],
    "send_abs_values": true,
    "send_diff_values": true,
    "send_derived_values": true,
    "use_sudo": false
  }

The lustrestat collector uses the lctl application with the get_param option to get all llite metrics (Lustre client). The llite metrics are only available for root users. If password-less sudo is configured, you can enable sudo in the configuration.

At least one of the settings for absolute, diff, and derived values must be set to true.

Both filtering mechanisms are supported:

• exclude_metrics: Excludes the specified metrics.
• only_metrics: If provided, only the listed metrics are collected. This takes precedence over exclude_metrics.

Metrics are categorized as follows:

Absolute Metrics:

• lustre_read_bytes (unit: bytes)
• lustre_read_requests (unit: requests)
• lustre_write_bytes (unit: bytes)
• lustre_write_requests (unit: requests)
• lustre_open
• lustre_close
• lustre_getattr
• lustre_setattr
• lustre_statfs
• lustre_inode_permission

Diff Metrics:

• lustre_read_bytes_diff (unit: bytes)
• lustre_read_requests_diff (unit: requests)
• lustre_write_bytes_diff (unit: bytes)
• lustre_write_requests_diff (unit: requests)
• lustre_open_diff
• lustre_close_diff
• lustre_getattr_diff
• lustre_setattr_diff
• lustre_statfs_diff
• lustre_inode_permission_diff

Derived Metrics:

• lustre_read_bw (unit: bytes/sec)
• lustre_write_bw (unit: bytes/sec)
• lustre_read_requests_rate (unit: requests/sec)
• lustre_write_requests_rate (unit: requests/sec)

This collector adds a device tag.