func TestGather(t *testing.T) {
var acc testutil.Accumulator
pid := os.Getpid()
file, err := ioutil.TempFile(os.TempDir(), "telegraf")
require.NoError(t, err)
file.Write([]byte(strconv.Itoa(pid)))
file.Close()
defer os.Remove(file.Name())
specifications := []*Specification{&Specification{PidFile: file.Name(), Prefix: "foo"}}
p := Procstat{
Specifications: specifications,
}
p.Gather(&acc)
assert.True(t, acc.HasFloatValue("foo_cpu_user"))
assert.True(t, acc.HasUIntValue("foo_memory_vms"))
}
func TestLustre2GeneratesMetrics(t *testing.T) {
tempdir := os.TempDir() + "/telegraf/proc/fs/lustre/"
ost_name := "OST0001"
mdtdir := tempdir + "/mdt/"
err := os.MkdirAll(mdtdir+"/"+ost_name, 0755)
require.NoError(t, err)
osddir := tempdir + "/osd-ldiskfs/"
err = os.MkdirAll(osddir+"/"+ost_name, 0755)
require.NoError(t, err)
obddir := tempdir + "/obdfilter/"
err = os.MkdirAll(obddir+"/"+ost_name, 0755)
require.NoError(t, err)
err = ioutil.WriteFile(mdtdir+"/"+ost_name+"/md_stats", []byte(mdtProcContents), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(osddir+"/"+ost_name+"/stats", []byte(osdldiskfsProcContents), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(obddir+"/"+ost_name+"/stats", []byte(obdfilterProcContents), 0644)
require.NoError(t, err)
m := &Lustre2{
Ost_procfiles: []string{obddir + "/*/stats", osddir + "/*/stats"},
Mds_procfiles: []string{mdtdir + "/*/md_stats"},
}
var acc testutil.Accumulator
err = m.Gather(&acc)
require.NoError(t, err)
tags := map[string]string{
"name": ost_name,
}
intMetrics := []*metrics{
{
name: "write_bytes",
value: 15201500833981,
},
{
name: "read_bytes",
value: 78026117632000,
},
{
name: "write_calls",
value: 71893382,
},
{
name: "read_calls",
value: 203238095,
},
{
name: "cache_hit",
value: 7393729777,
},
{
name: "cache_access",
value: 19047063027,
},
{
name: "cache_miss",
value: 11653333250,
},
}
for _, metric := range intMetrics {
assert.True(t, acc.HasUIntValue(metric.name), metric.name)
assert.True(t, acc.CheckTaggedValue(metric.name, metric.value, tags))
}
err = os.RemoveAll(os.TempDir() + "/telegraf")
require.NoError(t, err)
}
func TestBcacheGeneratesMetrics(t *testing.T) {
err := os.MkdirAll(testBcacheUuidPath, 0755)
require.NoError(t, err)
err = os.MkdirAll(testBcacheDevPath, 0755)
require.NoError(t, err)
err = os.MkdirAll(testBcacheBackingDevPath+"/bcache", 0755)
require.NoError(t, err)
err = os.Symlink(testBcacheBackingDevPath+"/bcache", testBcacheUuidPath+"/bdev0")
require.NoError(t, err)
err = os.Symlink(testBcacheDevPath, testBcacheUuidPath+"/bdev0/dev")
require.NoError(t, err)
err = os.MkdirAll(testBcacheUuidPath+"/bdev0/stats_total", 0755)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/dirty_data", []byte(dirty_data), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/bypassed", []byte(bypassed), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_hits", []byte(cache_bypass_hits), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_bypass_misses", []byte(cache_bypass_misses), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hit_ratio", []byte(cache_hit_ratio), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_hits", []byte(cache_hits), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_miss_collisions", []byte(cache_miss_collisions), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_misses", []byte(cache_misses), 0644)
require.NoError(t, err)
err = ioutil.WriteFile(testBcacheUuidPath+"/bdev0/stats_total/cache_readaheads", []byte(cache_readaheads), 0644)
require.NoError(t, err)
intMetrics := []*metrics{
{
name: "dirty_data",
value: 1610612736,
},
{
name: "bypassed",
value: 5167704440832,
},
{
name: "cache_bypass_hits",
value: 146155333,
},
{
name: "cache_bypass_misses",
value: 0,
},
{
name: "cache_hit_ratio",
value: 90,
},
{
name: "cache_hits",
value: 511469583,
},
{
name: "cache_miss_collisions",
value: 157567,
},
{
name: "cache_misses",
value: 50616331,
},
{
name: "cache_readaheads",
value: 2,
},
}
tags := map[string]string{
"backing_dev": "md10",
"bcache_dev": "bcache0",
}
var acc testutil.Accumulator
//all devs
b := &Bcache{BcachePath: testBcachePath}
err = b.Gather(&acc)
require.NoError(t, err)
for _, metric := range intMetrics {
assert.True(t, acc.HasUIntValue(metric.name), metric.name)
assert.True(t, acc.CheckTaggedValue(metric.name, metric.value, tags))
}
//one exist dev
b = &Bcache{BcachePath: testBcachePath, BcacheDevs: []string{"bcache0"}}
err = b.Gather(&acc)
require.NoError(t, err)
for _, metric := range intMetrics {
assert.True(t, acc.HasUIntValue(metric.name), metric.name)
assert.True(t, acc.CheckTaggedValue(metric.name, metric.value, tags))
}
err = os.RemoveAll(os.TempDir() + "/telegraf")
require.NoError(t, err)
}