367 lines
14 KiB
Go
367 lines
14 KiB
Go
package zfs
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import (
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"io/ioutil"
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"os"
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"testing"
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"github.com/influxdb/telegraf/testutil"
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"github.com/stretchr/testify/require"
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)
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const arcstatsContents = `5 1 0x01 86 4128 23617128247 12081618582809582
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name type data
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hits 4 5968846374
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misses 4 1659178751
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demand_data_hits 4 4860247322
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demand_data_misses 4 501499535
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demand_metadata_hits 4 708608325
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demand_metadata_misses 4 156591375
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prefetch_data_hits 4 367047144
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prefetch_data_misses 4 974529898
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prefetch_metadata_hits 4 32943583
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prefetch_metadata_misses 4 26557943
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mru_hits 4 301176811
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mru_ghost_hits 4 47066067
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mfu_hits 4 5520612438
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mfu_ghost_hits 4 45784009
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deleted 4 1718937704
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recycle_miss 4 481222994
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mutex_miss 4 20575623
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evict_skip 4 14655903906543
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evict_l2_cached 4 145310202998272
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evict_l2_eligible 4 16345402777088
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evict_l2_ineligible 4 7437226893312
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hash_elements 4 36617980
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hash_elements_max 4 36618318
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hash_collisions 4 554145157
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hash_chains 4 4187651
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hash_chain_max 4 26
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p 4 13963222064
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c 4 16381258376
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c_min 4 4194304
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c_max 4 16884125696
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size 4 16319887096
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hdr_size 4 42567864
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data_size 4 60066304
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meta_size 4 1701534208
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other_size 4 1661543168
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anon_size 4 94720
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anon_evict_data 4 0
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anon_evict_metadata 4 0
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mru_size 4 973099008
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mru_evict_data 4 9175040
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mru_evict_metadata 4 32768
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mru_ghost_size 4 32768
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mru_ghost_evict_data 4 0
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mru_ghost_evict_metadata 4 32768
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mfu_size 4 788406784
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mfu_evict_data 4 50881024
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mfu_evict_metadata 4 81920
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mfu_ghost_size 4 0
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mfu_ghost_evict_data 4 0
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mfu_ghost_evict_metadata 4 0
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l2_hits 4 573868618
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l2_misses 4 1085309718
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l2_feeds 4 12182087
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l2_rw_clash 4 9610
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l2_read_bytes 4 32695938336768
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l2_write_bytes 4 2826774778880
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l2_writes_sent 4 4267687
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l2_writes_done 4 4267687
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l2_writes_error 4 0
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l2_writes_hdr_miss 4 164
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l2_evict_lock_retry 4 5
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l2_evict_reading 4 0
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l2_free_on_write 4 1606914
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l2_cdata_free_on_write 4 1775
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l2_abort_lowmem 4 83462
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l2_cksum_bad 4 393860640
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l2_io_error 4 53881460
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l2_size 4 2471466648576
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l2_asize 4 2461690072064
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l2_hdr_size 4 12854175552
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l2_compress_successes 4 12184849
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l2_compress_zeros 4 0
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l2_compress_failures 4 0
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memory_throttle_count 4 0
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duplicate_buffers 4 0
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duplicate_buffers_size 4 0
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duplicate_reads 4 0
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memory_direct_count 4 5159942
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memory_indirect_count 4 3034640
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arc_no_grow 4 0
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arc_tempreserve 4 0
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arc_loaned_bytes 4 0
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arc_prune 4 114554259559
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arc_meta_used 4 16259820792
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arc_meta_limit 4 12663094272
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arc_meta_max 4 18327165696
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`
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const zfetchstatsContents = `3 1 0x01 11 528 23607270446 12081656848148208
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name type data
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hits 4 7812959060
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misses 4 4154484207
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colinear_hits 4 1366368
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colinear_misses 4 4153117839
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stride_hits 4 7309776732
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stride_misses 4 222766182
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reclaim_successes 4 107788388
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reclaim_failures 4 4045329451
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streams_resets 4 20989756
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streams_noresets 4 503182328
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bogus_streams 4 0
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`
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const vdev_cache_statsContents = `7 1 0x01 3 144 23617323692 12081684236238879
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name type data
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delegations 4 0
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hits 4 0
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misses 4 0
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`
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const pool_ioContents = `11 3 0x00 1 80 2225326830828 32953476980628
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nread nwritten reads writes wtime wlentime wupdate rtime rlentime rupdate wcnt rcnt
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1884160 6450688 22 978 272187126 2850519036 2263669418655 424226814 2850519036 2263669871823 0 0
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`
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var testKstatPath = os.TempDir() + "/telegraf/proc/spl/kstat/zfs"
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func TestZfsPoolMetrics(t *testing.T) {
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err := os.MkdirAll(testKstatPath, 0755)
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require.NoError(t, err)
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err = os.MkdirAll(testKstatPath+"/HOME", 0755)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/HOME/io", []byte(pool_ioContents), 0644)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/arcstats", []byte(arcstatsContents), 0644)
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require.NoError(t, err)
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poolMetrics := getPoolMetrics()
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var acc testutil.Accumulator
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z := &Zfs{KstatPath: testKstatPath, KstatMetrics: []string{"arcstats"}}
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err = z.Gather(&acc)
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require.NoError(t, err)
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require.False(t, acc.HasMeasurement("zfs_pool"))
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acc.Points = nil
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z = &Zfs{KstatPath: testKstatPath, KstatMetrics: []string{"arcstats"}, PoolMetrics: true}
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err = z.Gather(&acc)
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require.NoError(t, err)
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//one pool, all metrics
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tags := map[string]string{
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"pool": "HOME",
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}
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acc.AssertContainsTaggedFields(t, "zfs_pool", poolMetrics, tags)
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err = os.RemoveAll(os.TempDir() + "/telegraf")
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require.NoError(t, err)
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}
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func TestZfsGeneratesMetrics(t *testing.T) {
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err := os.MkdirAll(testKstatPath, 0755)
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require.NoError(t, err)
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err = os.MkdirAll(testKstatPath+"/HOME", 0755)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/HOME/io", []byte(""), 0644)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/arcstats", []byte(arcstatsContents), 0644)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/zfetchstats", []byte(zfetchstatsContents), 0644)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/vdev_cache_stats", []byte(vdev_cache_statsContents), 0644)
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require.NoError(t, err)
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intMetrics := getKstatMetricsAll()
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var acc testutil.Accumulator
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//one pool, all metrics
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tags := map[string]string{
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"pools": "HOME",
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}
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z := &Zfs{KstatPath: testKstatPath}
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err = z.Gather(&acc)
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require.NoError(t, err)
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acc.AssertContainsTaggedFields(t, "zfs", intMetrics, tags)
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acc.Points = nil
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//two pools, all metrics
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err = os.MkdirAll(testKstatPath+"/STORAGE", 0755)
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require.NoError(t, err)
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err = ioutil.WriteFile(testKstatPath+"/STORAGE/io", []byte(""), 0644)
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require.NoError(t, err)
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tags = map[string]string{
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"pools": "HOME::STORAGE",
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}
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z = &Zfs{KstatPath: testKstatPath}
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acc = testutil.Accumulator{}
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err = z.Gather(&acc)
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require.NoError(t, err)
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acc.AssertContainsTaggedFields(t, "zfs", intMetrics, tags)
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acc.Points = nil
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intMetrics = getKstatMetricsArcOnly()
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//two pools, one metric
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z = &Zfs{KstatPath: testKstatPath, KstatMetrics: []string{"arcstats"}}
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acc = testutil.Accumulator{}
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err = z.Gather(&acc)
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require.NoError(t, err)
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acc.AssertContainsTaggedFields(t, "zfs", intMetrics, tags)
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err = os.RemoveAll(os.TempDir() + "/telegraf")
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require.NoError(t, err)
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}
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func getKstatMetricsArcOnly() map[string]interface{} {
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return map[string]interface{}{
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"arcstats_hits": int64(5968846374),
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"arcstats_misses": int64(1659178751),
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"arcstats_demand_data_hits": int64(4860247322),
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"arcstats_demand_data_misses": int64(501499535),
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"arcstats_demand_metadata_hits": int64(708608325),
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"arcstats_demand_metadata_misses": int64(156591375),
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"arcstats_prefetch_data_hits": int64(367047144),
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"arcstats_prefetch_data_misses": int64(974529898),
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"arcstats_prefetch_metadata_hits": int64(32943583),
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"arcstats_prefetch_metadata_misses": int64(26557943),
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"arcstats_mru_hits": int64(301176811),
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"arcstats_mru_ghost_hits": int64(47066067),
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"arcstats_mfu_hits": int64(5520612438),
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"arcstats_mfu_ghost_hits": int64(45784009),
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"arcstats_deleted": int64(1718937704),
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"arcstats_recycle_miss": int64(481222994),
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"arcstats_mutex_miss": int64(20575623),
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"arcstats_evict_skip": int64(14655903906543),
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"arcstats_evict_l2_cached": int64(145310202998272),
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"arcstats_evict_l2_eligible": int64(16345402777088),
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"arcstats_evict_l2_ineligible": int64(7437226893312),
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"arcstats_hash_elements": int64(36617980),
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"arcstats_hash_elements_max": int64(36618318),
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"arcstats_hash_collisions": int64(554145157),
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"arcstats_hash_chains": int64(4187651),
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"arcstats_hash_chain_max": int64(26),
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"arcstats_p": int64(13963222064),
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"arcstats_c": int64(16381258376),
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"arcstats_c_min": int64(4194304),
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"arcstats_c_max": int64(16884125696),
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"arcstats_size": int64(16319887096),
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"arcstats_hdr_size": int64(42567864),
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"arcstats_data_size": int64(60066304),
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"arcstats_meta_size": int64(1701534208),
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"arcstats_other_size": int64(1661543168),
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"arcstats_anon_size": int64(94720),
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"arcstats_anon_evict_data": int64(0),
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"arcstats_anon_evict_metadata": int64(0),
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"arcstats_mru_size": int64(973099008),
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"arcstats_mru_evict_data": int64(9175040),
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"arcstats_mru_evict_metadata": int64(32768),
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"arcstats_mru_ghost_size": int64(32768),
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"arcstats_mru_ghost_evict_data": int64(0),
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"arcstats_mru_ghost_evict_metadata": int64(32768),
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"arcstats_mfu_size": int64(788406784),
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"arcstats_mfu_evict_data": int64(50881024),
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"arcstats_mfu_evict_metadata": int64(81920),
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"arcstats_mfu_ghost_size": int64(0),
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"arcstats_mfu_ghost_evict_data": int64(0),
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"arcstats_mfu_ghost_evict_metadata": int64(0),
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"arcstats_l2_hits": int64(573868618),
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"arcstats_l2_misses": int64(1085309718),
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"arcstats_l2_feeds": int64(12182087),
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"arcstats_l2_rw_clash": int64(9610),
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"arcstats_l2_read_bytes": int64(32695938336768),
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"arcstats_l2_write_bytes": int64(2826774778880),
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"arcstats_l2_writes_sent": int64(4267687),
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"arcstats_l2_writes_done": int64(4267687),
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"arcstats_l2_writes_error": int64(0),
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"arcstats_l2_writes_hdr_miss": int64(164),
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"arcstats_l2_evict_lock_retry": int64(5),
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"arcstats_l2_evict_reading": int64(0),
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"arcstats_l2_free_on_write": int64(1606914),
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"arcstats_l2_cdata_free_on_write": int64(1775),
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"arcstats_l2_abort_lowmem": int64(83462),
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"arcstats_l2_cksum_bad": int64(393860640),
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"arcstats_l2_io_error": int64(53881460),
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"arcstats_l2_size": int64(2471466648576),
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"arcstats_l2_asize": int64(2461690072064),
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"arcstats_l2_hdr_size": int64(12854175552),
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"arcstats_l2_compress_successes": int64(12184849),
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"arcstats_l2_compress_zeros": int64(0),
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"arcstats_l2_compress_failures": int64(0),
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"arcstats_memory_throttle_count": int64(0),
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"arcstats_duplicate_buffers": int64(0),
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"arcstats_duplicate_buffers_size": int64(0),
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"arcstats_duplicate_reads": int64(0),
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"arcstats_memory_direct_count": int64(5159942),
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"arcstats_memory_indirect_count": int64(3034640),
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"arcstats_arc_no_grow": int64(0),
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"arcstats_arc_tempreserve": int64(0),
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"arcstats_arc_loaned_bytes": int64(0),
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"arcstats_arc_prune": int64(114554259559),
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"arcstats_arc_meta_used": int64(16259820792),
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"arcstats_arc_meta_limit": int64(12663094272),
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"arcstats_arc_meta_max": int64(18327165696),
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}
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}
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func getKstatMetricsAll() map[string]interface{} {
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otherMetrics := map[string]interface{}{
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"zfetchstats_hits": int64(7812959060),
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"zfetchstats_misses": int64(4154484207),
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"zfetchstats_colinear_hits": int64(1366368),
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"zfetchstats_colinear_misses": int64(4153117839),
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"zfetchstats_stride_hits": int64(7309776732),
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"zfetchstats_stride_misses": int64(222766182),
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"zfetchstats_reclaim_successes": int64(107788388),
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"zfetchstats_reclaim_failures": int64(4045329451),
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"zfetchstats_streams_resets": int64(20989756),
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"zfetchstats_streams_noresets": int64(503182328),
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"zfetchstats_bogus_streams": int64(0),
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"vdev_cache_stats_delegations": int64(0),
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"vdev_cache_stats_hits": int64(0),
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"vdev_cache_stats_misses": int64(0),
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}
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arcMetrics := getKstatMetricsArcOnly()
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for k, v := range otherMetrics {
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arcMetrics[k] = v
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}
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return arcMetrics
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}
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func getPoolMetrics() map[string]interface{} {
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return map[string]interface{}{
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"nread": int64(1884160),
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"nwritten": int64(6450688),
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"reads": int64(22),
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"writes": int64(978),
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"wtime": int64(272187126),
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"wlentime": int64(2850519036),
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"wupdate": int64(2263669418655),
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"rtime": int64(424226814),
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"rlentime": int64(2850519036),
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"rupdate": int64(2263669871823),
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"wcnt": int64(0),
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"rcnt": int64(0),
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}
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}
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