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Addressing PR feedback 

- Updated README/CHANGELOG
- Added links to further info to input README
- Reduced lines to 80 chars
This commit is contained in:
robinpercy-xm 2016-05-21 15:48:02 -07:00
parent 0abaf7bf6a
commit a99912fb12
4 changed files with 9 additions and 103 deletions
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1
CHANGELOG.md
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@ -51,6 +51,7 @@ to "stdout".
### Features
- [#1173](https://github.com/influxdata/telegraf/pull/1173): varnish input plugin. Thanks @sfox-xmatters!
- [#1165](https://github.com/influxdata/telegraf/pull/1165): vmstat input plugin. Thanks @jshim-xm!
- [#1138](https://github.com/influxdata/telegraf/pull/1138): nstat input plugin. Thanks @Maksadbek!
- [#1139](https://github.com/influxdata/telegraf/pull/1139): instrumental output plugin. Thanks @jasonroelofs!
- [#1172](https://github.com/influxdata/telegraf/pull/1172): Ceph storage stats. Thanks @robinpercy!

1
README.md
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@ -205,6 +205,7 @@ Currently implemented sources:
* swap
* processes
* kernel (/proc/stat)
* kernel (/proc/vmstat)
Telegraf can also collect metrics via the following service plugins:

11
plugins/inputs/system/KERNEL_VMSTAT_README.md
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@ -1,12 +1,11 @@
# Kernel VMStat Input Plugin
This plugin is only available on Linux.
The kernel_vmstat plugin gathers virtual memory statistics
by reading /proc/vmstat. For a full list of available fields see the
/proc/vmstat section of the [proc man page](http://man7.org/linux/man-pages/man5/proc.5.html).
For a better idea of what each field represents, see the
[vmstat man page](http://linux.die.net/man/8/vmstat).
The kernel_vmstat plugin gathers info about the kernel that doesn't fit into other
plugins. In general, it is the statistics available in `/proc/vmstat` that are
not covered by other plugins.
The metrics are documented in `man proc` under the `/proc/vmstat` section.
```
/proc/vmstat

99
plugins/inputs/system/kernel_vmstat.go
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@ -13,102 +13,6 @@ import (
"github.com/influxdata/telegraf/plugins/inputs"
)
// /proc/vmstat file line prefixes to gather stats on.
// This is currently not being used as we are retrieving all the stats. Left here for references.
var (
nr_free_pages = []byte("nr_free_pages")
nr_inactive_anon = []byte("nr_inactive_anon")
nr_active_anon = []byte("nr_active_anon")
nr_inactive_file = []byte("nr_inactive_file")
nr_active_file = []byte("nr_active_file")
nr_unevictable = []byte("nr_unevictable")
nr_mlock = []byte("nr_mlock")
nr_anon_pages = []byte("nr_anon_pages")
nr_mapped = []byte("nr_mapped")
nr_file_pages = []byte("nr_file_pages")
nr_dirty = []byte("nr_dirty")
nr_writeback = []byte("nr_writeback")
nr_slab_reclaimable = []byte("nr_slab_reclaimable")
nr_slab_unreclaimable = []byte("nr_slab_unreclaimable")
nr_page_table_pages = []byte("nr_page_table_pages")
nr_kernel_stack = []byte("nr_kernel_stack")
nr_unstable = []byte("nr_unstable")
nr_bounce = []byte("nr_bounce")
nr_vmscan_write = []byte("nr_vmscan_write")
nr_writeback_temp = []byte("nr_writeback_temp")
nr_isolated_anon = []byte("nr_isolated_anon")
nr_isolated_file = []byte("nr_isolated_file")
nr_shmem = []byte("nr_shmem")
numa_hit = []byte("numa_hit")
numa_miss = []byte("numa_miss")
numa_foreign = []byte("numa_foreign")
numa_interleave = []byte("numa_interleave")
numa_local = []byte("numa_local")
numa_other = []byte("numa_other")
nr_anon_transparent_hugepages = []byte("nr_anon_transparent_hugepages")
pgpgin = []byte("pgpgin")
pgpgout = []byte("pgpgout")
pswpin = []byte("pswpin")
pswpout = []byte("pswpout")
pgalloc_dma = []byte("pgalloc_dma")
pgalloc_dma32 = []byte("pgalloc_dma32")
pgalloc_normal = []byte("pgalloc_normal")
pgalloc_movable = []byte("pgalloc_movable")
pgfree = []byte("pgfree")
pgactivate = []byte("pgactivate")
pgdeactivate = []byte("pgdeactivate")
pgfault = []byte("pgfault")
pgmajfault = []byte("pgmajfault")
pgrefill_dma = []byte("pgrefill_dma")
pgrefill_dma32 = []byte("pgrefill_dma32")
pgrefill_normal = []byte("pgrefill_normal")
pgrefill_movable = []byte("pgrefill_movable")
pgsteal_dma = []byte("pgsteal_dma")
pgsteal_dma32 = []byte("pgsteal_dma32")
pgsteal_normal = []byte("pgsteal_normal")
pgsteal_movable = []byte("pgsteal_movable")
pgscan_kswapd_dma = []byte("pgscan_kswapd_dma")
pgscan_kswapd_dma32 = []byte("pgscan_kswapd_dma32")
pgscan_kswapd_normal = []byte("pgscan_kswapd_normal")
pgscan_kswapd_movable = []byte("pgscan_kswapd_movable")
pgscan_direct_dma = []byte("pgscan_direct_dma")
pgscan_direct_dma32 = []byte("pgscan_direct_dma32")
pgscan_direct_normal = []byte("pgscan_direct_normal")
pgscan_direct_movable = []byte("pgscan_direct_movable")
zone_reclaim_failed = []byte("zone_reclaim_failed")
pginodesteal = []byte("pginodesteal")
slabs_scanned = []byte("slabs_scanned")
kswapd_steal = []byte("kswapd_steal")
kswapd_inodesteal = []byte("kswapd_inodesteal")
kswapd_low_wmark_hit_quickly = []byte("kswapd_low_wmark_hit_quickly")
kswapd_high_wmark_hit_quickly = []byte("kswapd_high_wmark_hit_quickly")
kswapd_skip_congestion_wait = []byte("kswapd_skip_congestion_wait")
pageoutrun = []byte("pageoutrun")
allocstall = []byte("allocstall")
pgrotated = []byte("pgrotated")
compact_blocks_moved = []byte("compact_blocks_moved")
compact_pages_moved = []byte("compact_pages_moved")
compact_pagemigrate_failed = []byte("compact_pagemigrate_failed")
compact_stall = []byte("compact_stall")
compact_fail = []byte("compact_fail")
compact_success = []byte("compact_success")
htlb_buddy_alloc_success = []byte("htlb_buddy_alloc_success")
htlb_buddy_alloc_fail = []byte("htlb_buddy_alloc_fail")
unevictable_pgs_culled = []byte("unevictable_pgs_culled")
unevictable_pgs_scanned = []byte("unevictable_pgs_scanned")
unevictable_pgs_rescued = []byte("unevictable_pgs_rescued")
unevictable_pgs_mlocked = []byte("unevictable_pgs_mlocked")
unevictable_pgs_munlocked = []byte("unevictable_pgs_munlocked")
unevictable_pgs_cleared = []byte("unevictable_pgs_cleared")
unevictable_pgs_stranded = []byte("unevictable_pgs_stranded")
unevictable_pgs_mlockfreed = []byte("unevictable_pgs_mlockfreed")
thp_fault_alloc = []byte("thp_fault_alloc")
thp_fault_fallback = []byte("thp_fault_fallback")
thp_collapse_alloc = []byte("thp_collapse_alloc")
thp_collapse_alloc_failed = []byte("thp_collapse_alloc_failed")
thp_split = []byte("thp_split")
)
type KernelVmstat struct {
statFile string
}
@ -132,7 +36,8 @@ func (k *KernelVmstat) Gather(acc telegraf.Accumulator) error {
dataFields := bytes.Fields(data)
for i, field := range dataFields {
// dataFields is an array of {"stat1_name", "stat1_value", "stat2_name", "stat2_value", ...}
// dataFields is an array of {"stat1_name", "stat1_value", "stat2_name",
// "stat2_value", ...}
// We only want the even number index as that contain the stat name.
if i%2 == 0 {
// Convert the stat value into an integer.