Lustre Input Plugin

This plugin gathers metrics for the Lustre® file system using its entries in the proc filesystem. Reference the Lustre Monitoring and Statistics Guide for the reported information.

[!NOTE] This plugin doesn't report all information available but only a limited set of items. Check the metrics section.

⭐ Telegraf v0.1.5 🏷️ system 💻 linux

Global configuration options <!-- @/docs/includes/plugin_config.md -->

Plugins support additional global and plugin configuration settings for tasks such as modifying metrics, tags, and fields, creating aliases, and configuring plugin ordering. See CONFIGURATION.md for more details.

Configuration

# Read metrics from local Lustre service on OST, MDS
# This plugin ONLY supports Linux
[[inputs.lustre2]]
  ## An array of /proc globs to search for Lustre stats
  ## If not specified, the default will work on Lustre 2.12.x
  ##
  # mgs_procfiles = [
  #   "/sys/fs/lustre/mgs/*/eviction_count",
  # ]
  # ost_procfiles = [
  #   "/proc/fs/lustre/obdfilter/*/stats",
  #   "/proc/fs/lustre/osd-ldiskfs/*/stats",
  #   "/proc/fs/lustre/obdfilter/*/job_stats",
  #   "/proc/fs/lustre/obdfilter/*/exports/*/stats",
  #   "/proc/fs/lustre/osd-ldiskfs/*/brw_stats",
  #   "/proc/fs/lustre/osd-zfs/*/brw_stats",
  #   "/sys/fs/lustre/odbfilter/*/eviction_count",
  # ]
  # mds_procfiles = [
  #   "/proc/fs/lustre/mdt/*/md_stats",
  #   "/proc/fs/lustre/mdt/*/job_stats",
  #   "/proc/fs/lustre/mdt/*/exports/*/stats",
  #   "/proc/fs/lustre/osd-ldiskfs/*/brw_stats",
  #   "/proc/fs/lustre/osd-zfs/*/brw_stats",
  #   "/sys/fs/lustre/mdt/*/eviction_count",
  # ]

Metrics

From /sys/fs/lustre/health_check:

• lustre2
  • tags:
  • fields:
    • health

From /proc/fs/lustre/obdfilter/*/stats and /proc/fs/lustre/osd-ldiskfs/*/stats:

• lustre2
  • tags:
    • name
  • fields:
    • write_bytes
    • write_calls
    • read_bytes
    • read_calls
    • cache_hit
    • cache_miss
    • cache_access

From /proc/fs/lustre/obdfilter/*/exports/*/stats:

• lustre2
  • tags:
    • name
    • client
  • fields:
    • write_bytes
    • write_calls
    • read_bytes
    • read_calls

From /proc/fs/lustre/obdfilter/*/job_stats:

• lustre2
  • tags:
    • name
    • jobid
  • fields:
    • jobstats_ost_getattr
    • jobstats_ost_setattr
    • jobstats_ost_sync
    • jobstats_punch
    • jobstats_destroy
    • jobstats_create
    • jobstats_ost_statfs
    • jobstats_get_info
    • jobstats_set_info
    • jobstats_quotactl
    • jobstats_read_bytes
    • jobstats_read_calls
    • jobstats_read_max_size
    • jobstats_read_min_size
    • jobstats_write_bytes
    • jobstats_write_calls
    • jobstats_write_max_size
    • jobstats_write_min_size

From /proc/fs/lustre/mdt/*/md_stats:

• lustre2
  • tags:
    • name
  • fields:
    • open
    • close
    • mknod
    • link
    • unlink
    • mkdir
    • rmdir
    • rename
    • getattr
    • setattr
    • getxattr
    • setxattr
    • statfs
    • sync
    • samedir_rename
    • crossdir_rename

From /proc/fs/lustre/mdt/*/exports/*/stats:

• lustre2
  • tags:
    • name
    • client
  • fields:
    • open
    • close
    • mknod
    • link
    • unlink
    • mkdir
    • rmdir
    • rename
    • getattr
    • setattr
    • getxattr
    • setxattr
    • statfs
    • sync
    • samedir_rename
    • crossdir_rename

From /proc/fs/lustre/mdt/*/job_stats:

• lustre2
  • tags:
    • name
    • jobid
  • fields:
    • jobstats_close
    • jobstats_crossdir_rename
    • jobstats_getattr
    • jobstats_getxattr
    • jobstats_link
    • jobstats_mkdir
    • jobstats_mknod
    • jobstats_open
    • jobstats_rename
    • jobstats_rmdir
    • jobstats_samedir_rename
    • jobstats_setattr
    • jobstats_setxattr
    • jobstats_statfs
    • jobstats_sync
    • jobstats_unlink

From /proc/fs/lustre/*/*/eviction_count:

• lustre2
  • tags:
    • name
  • fields:
    • evictions

Example Output

lustre2,host=oss2,jobid=42990218,name=wrk-OST0041 jobstats_ost_setattr=0i,jobstats_ost_sync=0i,jobstats_punch=0i,jobstats_read_bytes=4096i,jobstats_read_calls=1i,jobstats_read_max_size=4096i,jobstats_read_min_size=4096i,jobstats_write_bytes=310206488i,jobstats_write_calls=7423i,jobstats_write_max_size=53048i,jobstats_write_min_size=8820i 1556525847000000000
lustre2,host=mds1,jobid=42992017,name=wrk-MDT0000 jobstats_close=31798i,jobstats_crossdir_rename=0i,jobstats_getattr=34146i,jobstats_getxattr=15i,jobstats_link=0i,jobstats_mkdir=658i,jobstats_mknod=0i,jobstats_open=31797i,jobstats_rename=0i,jobstats_rmdir=0i,jobstats_samedir_rename=0i,jobstats_setattr=1788i,jobstats_setxattr=0i,jobstats_statfs=0i,jobstats_sync=0i,jobstats_unlink=0i 1556525828000000000