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varnish_test.go
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varnish_test.go
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// +build !windows
package varnish
import (
"bytes"
"fmt"
"strings"
"testing"
"time"
"github.com/influxdata/telegraf/internal"
"github.com/influxdata/telegraf/testutil"
"github.com/stretchr/testify/assert"
)
func fakeVarnishStat(output string, useSudo bool, InstanceName string, Timeout internal.Duration) func(string, bool, string, internal.Duration) (*bytes.Buffer, error) {
return func(string, bool, string, internal.Duration) (*bytes.Buffer, error) {
return bytes.NewBuffer([]byte(output)), nil
}
}
func TestGather(t *testing.T) {
acc := &testutil.Accumulator{}
v := &Varnish{
run: fakeVarnishStat(smOutput, false, "", internal.Duration{Duration: time.Second}),
Stats: []string{"*"},
}
v.Gather(acc)
acc.HasMeasurement("varnish")
for tag, fields := range parsedSmOutput {
acc.AssertContainsTaggedFields(t, "varnish", fields, map[string]string{
"section": tag,
})
}
}
func TestParseFullOutput(t *testing.T) {
acc := &testutil.Accumulator{}
v := &Varnish{
run: fakeVarnishStat(fullOutput, true, "", internal.Duration{Duration: time.Second}),
Stats: []string{"*"},
}
err := v.Gather(acc)
assert.NoError(t, err)
acc.HasMeasurement("varnish")
flat := flatten(acc.Metrics)
assert.Len(t, acc.Metrics, 6)
assert.Equal(t, 293, len(flat))
}
func TestFilterSomeStats(t *testing.T) {
acc := &testutil.Accumulator{}
v := &Varnish{
run: fakeVarnishStat(fullOutput, false, "", internal.Duration{Duration: time.Second}),
Stats: []string{"MGT.*", "VBE.*"},
}
err := v.Gather(acc)
assert.NoError(t, err)
acc.HasMeasurement("varnish")
flat := flatten(acc.Metrics)
assert.Len(t, acc.Metrics, 2)
assert.Equal(t, 16, len(flat))
}
func TestFieldConfig(t *testing.T) {
expect := map[string]int{
"*": 293,
"": 0, // default
"MAIN.uptime": 1,
"MEMPOOL.req0.sz_needed,MAIN.fetch_bad": 2,
}
for fieldCfg, expected := range expect {
acc := &testutil.Accumulator{}
v := &Varnish{
run: fakeVarnishStat(fullOutput, true, "", internal.Duration{Duration: time.Second}),
Stats: strings.Split(fieldCfg, ","),
}
err := v.Gather(acc)
assert.NoError(t, err)
acc.HasMeasurement("varnish")
flat := flatten(acc.Metrics)
assert.Equal(t, expected, len(flat))
}
}
func flatten(metrics []*testutil.Metric) map[string]interface{} {
flat := map[string]interface{}{}
for _, m := range metrics {
buf := &bytes.Buffer{}
for k, v := range m.Tags {
buf.WriteString(fmt.Sprintf("%s=%s", k, v))
}
for k, v := range m.Fields {
flat[fmt.Sprintf("%s %s", buf.String(), k)] = v
}
}
return flat
}
var smOutput = `
MAIN.uptime 895 1.00 Child process uptime
MAIN.cache_hit 95 0.00 Cache hits
MAIN.cache_miss 5 0.00 Cache misses
MGT.uptime 896 1.00 Management process uptime
MGT.child_start 1 0.00 Child process started
MEMPOOL.vbc.live 0 . In use
MEMPOOL.vbc.pool 10 . In Pool
MEMPOOL.vbc.sz_wanted 88 . Size requested
`
var parsedSmOutput = map[string]map[string]interface{}{
"MAIN": {
"uptime": uint64(895),
"cache_hit": uint64(95),
"cache_miss": uint64(5),
},
"MGT": {
"uptime": uint64(896),
"child_start": uint64(1),
},
"MEMPOOL": {
"vbc.live": uint64(0),
"vbc.pool": uint64(10),
"vbc.sz_wanted": uint64(88),
},
}
var fullOutput = `
MAIN.uptime 2872 1.00 Child process uptime
MAIN.sess_conn 0 0.00 Sessions accepted
MAIN.sess_drop 0 0.00 Sessions dropped
MAIN.sess_fail 0 0.00 Session accept failures
MAIN.sess_pipe_overflow 0 0.00 Session pipe overflow
MAIN.client_req_400 0 0.00 Client requests received, subject to 400 errors
MAIN.client_req_411 0 0.00 Client requests received, subject to 411 errors
MAIN.client_req_413 0 0.00 Client requests received, subject to 413 errors
MAIN.client_req_417 0 0.00 Client requests received, subject to 417 errors
MAIN.client_req 0 0.00 Good client requests received
MAIN.cache_hit 0 0.00 Cache hits
MAIN.cache_hitpass 0 0.00 Cache hits for pass
MAIN.cache_miss 0 0.00 Cache misses
MAIN.backend_conn 0 0.00 Backend conn. success
MAIN.backend_unhealthy 0 0.00 Backend conn. not attempted
MAIN.backend_busy 0 0.00 Backend conn. too many
MAIN.backend_fail 0 0.00 Backend conn. failures
MAIN.backend_reuse 0 0.00 Backend conn. reuses
MAIN.backend_toolate 0 0.00 Backend conn. was closed
MAIN.backend_recycle 0 0.00 Backend conn. recycles
MAIN.backend_retry 0 0.00 Backend conn. retry
MAIN.fetch_head 0 0.00 Fetch no body (HEAD)
MAIN.fetch_length 0 0.00 Fetch with Length
MAIN.fetch_chunked 0 0.00 Fetch chunked
MAIN.fetch_eof 0 0.00 Fetch EOF
MAIN.fetch_bad 0 0.00 Fetch bad T-E
MAIN.fetch_close 0 0.00 Fetch wanted close
MAIN.fetch_oldhttp 0 0.00 Fetch pre HTTP/1.1 closed
MAIN.fetch_zero 0 0.00 Fetch zero len body
MAIN.fetch_1xx 0 0.00 Fetch no body (1xx)
MAIN.fetch_204 0 0.00 Fetch no body (204)
MAIN.fetch_304 0 0.00 Fetch no body (304)
MAIN.fetch_failed 0 0.00 Fetch failed (all causes)
MAIN.fetch_no_thread 0 0.00 Fetch failed (no thread)
MAIN.pools 2 . Number of thread pools
MAIN.threads 200 . Total number of threads
MAIN.threads_limited 0 0.00 Threads hit max
MAIN.threads_created 200 0.07 Threads created
MAIN.threads_destroyed 0 0.00 Threads destroyed
MAIN.threads_failed 0 0.00 Thread creation failed
MAIN.thread_queue_len 0 . Length of session queue
MAIN.busy_sleep 0 0.00 Number of requests sent to sleep on busy objhdr
MAIN.busy_wakeup 0 0.00 Number of requests woken after sleep on busy objhdr
MAIN.sess_queued 0 0.00 Sessions queued for thread
MAIN.sess_dropped 0 0.00 Sessions dropped for thread
MAIN.n_object 0 . object structs made
MAIN.n_vampireobject 0 . unresurrected objects
MAIN.n_objectcore 0 . objectcore structs made
MAIN.n_objecthead 0 . objecthead structs made
MAIN.n_waitinglist 0 . waitinglist structs made
MAIN.n_backend 1 . Number of backends
MAIN.n_expired 0 . Number of expired objects
MAIN.n_lru_nuked 0 . Number of LRU nuked objects
MAIN.n_lru_moved 0 . Number of LRU moved objects
MAIN.losthdr 0 0.00 HTTP header overflows
MAIN.s_sess 0 0.00 Total sessions seen
MAIN.s_req 0 0.00 Total requests seen
MAIN.s_pipe 0 0.00 Total pipe sessions seen
MAIN.s_pass 0 0.00 Total pass-ed requests seen
MAIN.s_fetch 0 0.00 Total backend fetches initiated
MAIN.s_synth 0 0.00 Total synthethic responses made
MAIN.s_req_hdrbytes 0 0.00 Request header bytes
MAIN.s_req_bodybytes 0 0.00 Request body bytes
MAIN.s_resp_hdrbytes 0 0.00 Response header bytes
MAIN.s_resp_bodybytes 0 0.00 Response body bytes
MAIN.s_pipe_hdrbytes 0 0.00 Pipe request header bytes
MAIN.s_pipe_in 0 0.00 Piped bytes from client
MAIN.s_pipe_out 0 0.00 Piped bytes to client
MAIN.sess_closed 0 0.00 Session Closed
MAIN.sess_pipeline 0 0.00 Session Pipeline
MAIN.sess_readahead 0 0.00 Session Read Ahead
MAIN.sess_herd 0 0.00 Session herd
MAIN.shm_records 1918 0.67 SHM records
MAIN.shm_writes 1918 0.67 SHM writes
MAIN.shm_flushes 0 0.00 SHM flushes due to overflow
MAIN.shm_cont 0 0.00 SHM MTX contention
MAIN.shm_cycles 0 0.00 SHM cycles through buffer
MAIN.sms_nreq 0 0.00 SMS allocator requests
MAIN.sms_nobj 0 . SMS outstanding allocations
MAIN.sms_nbytes 0 . SMS outstanding bytes
MAIN.sms_balloc 0 . SMS bytes allocated
MAIN.sms_bfree 0 . SMS bytes freed
MAIN.backend_req 0 0.00 Backend requests made
MAIN.n_vcl 1 0.00 Number of loaded VCLs in total
MAIN.n_vcl_avail 1 0.00 Number of VCLs available
MAIN.n_vcl_discard 0 0.00 Number of discarded VCLs
MAIN.bans 1 . Count of bans
MAIN.bans_completed 1 . Number of bans marked 'completed'
MAIN.bans_obj 0 . Number of bans using obj.*
MAIN.bans_req 0 . Number of bans using req.*
MAIN.bans_added 1 0.00 Bans added
MAIN.bans_deleted 0 0.00 Bans deleted
MAIN.bans_tested 0 0.00 Bans tested against objects (lookup)
MAIN.bans_obj_killed 0 0.00 Objects killed by bans (lookup)
MAIN.bans_lurker_tested 0 0.00 Bans tested against objects (lurker)
MAIN.bans_tests_tested 0 0.00 Ban tests tested against objects (lookup)
MAIN.bans_lurker_tests_tested 0 0.00 Ban tests tested against objects (lurker)
MAIN.bans_lurker_obj_killed 0 0.00 Objects killed by bans (lurker)
MAIN.bans_dups 0 0.00 Bans superseded by other bans
MAIN.bans_lurker_contention 0 0.00 Lurker gave way for lookup
MAIN.bans_persisted_bytes 13 . Bytes used by the persisted ban lists
MAIN.bans_persisted_fragmentation 0 . Extra bytes in persisted ban lists due to fragmentation
MAIN.n_purges 0 . Number of purge operations executed
MAIN.n_obj_purged 0 . Number of purged objects
MAIN.exp_mailed 0 0.00 Number of objects mailed to expiry thread
MAIN.exp_received 0 0.00 Number of objects received by expiry thread
MAIN.hcb_nolock 0 0.00 HCB Lookups without lock
MAIN.hcb_lock 0 0.00 HCB Lookups with lock
MAIN.hcb_insert 0 0.00 HCB Inserts
MAIN.esi_errors 0 0.00 ESI parse errors (unlock)
MAIN.esi_warnings 0 0.00 ESI parse warnings (unlock)
MAIN.vmods 0 . Loaded VMODs
MAIN.n_gzip 0 0.00 Gzip operations
MAIN.n_gunzip 0 0.00 Gunzip operations
MAIN.vsm_free 972528 . Free VSM space
MAIN.vsm_used 83962080 . Used VSM space
MAIN.vsm_cooling 0 . Cooling VSM space
MAIN.vsm_overflow 0 . Overflow VSM space
MAIN.vsm_overflowed 0 0.00 Overflowed VSM space
MGT.uptime 2871 1.00 Management process uptime
MGT.child_start 1 0.00 Child process started
MGT.child_exit 0 0.00 Child process normal exit
MGT.child_stop 0 0.00 Child process unexpected exit
MGT.child_died 0 0.00 Child process died (signal)
MGT.child_dump 0 0.00 Child process core dumped
MGT.child_panic 0 0.00 Child process panic
MEMPOOL.vbc.live 0 . In use
MEMPOOL.vbc.pool 10 . In Pool
MEMPOOL.vbc.sz_wanted 88 . Size requested
MEMPOOL.vbc.sz_needed 120 . Size allocated
MEMPOOL.vbc.allocs 0 0.00 Allocations
MEMPOOL.vbc.frees 0 0.00 Frees
MEMPOOL.vbc.recycle 0 0.00 Recycled from pool
MEMPOOL.vbc.timeout 0 0.00 Timed out from pool
MEMPOOL.vbc.toosmall 0 0.00 Too small to recycle
MEMPOOL.vbc.surplus 0 0.00 Too many for pool
MEMPOOL.vbc.randry 0 0.00 Pool ran dry
MEMPOOL.busyobj.live 0 . In use
MEMPOOL.busyobj.pool 10 . In Pool
MEMPOOL.busyobj.sz_wanted 65536 . Size requested
MEMPOOL.busyobj.sz_needed 65568 . Size allocated
MEMPOOL.busyobj.allocs 0 0.00 Allocations
MEMPOOL.busyobj.frees 0 0.00 Frees
MEMPOOL.busyobj.recycle 0 0.00 Recycled from pool
MEMPOOL.busyobj.timeout 0 0.00 Timed out from pool
MEMPOOL.busyobj.toosmall 0 0.00 Too small to recycle
MEMPOOL.busyobj.surplus 0 0.00 Too many for pool
MEMPOOL.busyobj.randry 0 0.00 Pool ran dry
MEMPOOL.req0.live 0 . In use
MEMPOOL.req0.pool 10 . In Pool
MEMPOOL.req0.sz_wanted 65536 . Size requested
MEMPOOL.req0.sz_needed 65568 . Size allocated
MEMPOOL.req0.allocs 0 0.00 Allocations
MEMPOOL.req0.frees 0 0.00 Frees
MEMPOOL.req0.recycle 0 0.00 Recycled from pool
MEMPOOL.req0.timeout 0 0.00 Timed out from pool
MEMPOOL.req0.toosmall 0 0.00 Too small to recycle
MEMPOOL.req0.surplus 0 0.00 Too many for pool
MEMPOOL.req0.randry 0 0.00 Pool ran dry
MEMPOOL.sess0.live 0 . In use
MEMPOOL.sess0.pool 10 . In Pool
MEMPOOL.sess0.sz_wanted 384 . Size requested
MEMPOOL.sess0.sz_needed 416 . Size allocated
MEMPOOL.sess0.allocs 0 0.00 Allocations
MEMPOOL.sess0.frees 0 0.00 Frees
MEMPOOL.sess0.recycle 0 0.00 Recycled from pool
MEMPOOL.sess0.timeout 0 0.00 Timed out from pool
MEMPOOL.sess0.toosmall 0 0.00 Too small to recycle
MEMPOOL.sess0.surplus 0 0.00 Too many for pool
MEMPOOL.sess0.randry 0 0.00 Pool ran dry
MEMPOOL.req1.live 0 . In use
MEMPOOL.req1.pool 10 . In Pool
MEMPOOL.req1.sz_wanted 65536 . Size requested
MEMPOOL.req1.sz_needed 65568 . Size allocated
MEMPOOL.req1.allocs 0 0.00 Allocations
MEMPOOL.req1.frees 0 0.00 Frees
MEMPOOL.req1.recycle 0 0.00 Recycled from pool
MEMPOOL.req1.timeout 0 0.00 Timed out from pool
MEMPOOL.req1.toosmall 0 0.00 Too small to recycle
MEMPOOL.req1.surplus 0 0.00 Too many for pool
MEMPOOL.req1.randry 0 0.00 Pool ran dry
MEMPOOL.sess1.live 0 . In use
MEMPOOL.sess1.pool 10 . In Pool
MEMPOOL.sess1.sz_wanted 384 . Size requested
MEMPOOL.sess1.sz_needed 416 . Size allocated
MEMPOOL.sess1.allocs 0 0.00 Allocations
MEMPOOL.sess1.frees 0 0.00 Frees
MEMPOOL.sess1.recycle 0 0.00 Recycled from pool
MEMPOOL.sess1.timeout 0 0.00 Timed out from pool
MEMPOOL.sess1.toosmall 0 0.00 Too small to recycle
MEMPOOL.sess1.surplus 0 0.00 Too many for pool
MEMPOOL.sess1.randry 0 0.00 Pool ran dry
SMA.s0.c_req 0 0.00 Allocator requests
SMA.s0.c_fail 0 0.00 Allocator failures
SMA.s0.c_bytes 0 0.00 Bytes allocated
SMA.s0.c_freed 0 0.00 Bytes freed
SMA.s0.g_alloc 0 . Allocations outstanding
SMA.s0.g_bytes 0 . Bytes outstanding
SMA.s0.g_space 268435456 . Bytes available
SMA.Transient.c_req 0 0.00 Allocator requests
SMA.Transient.c_fail 0 0.00 Allocator failures
SMA.Transient.c_bytes 0 0.00 Bytes allocated
SMA.Transient.c_freed 0 0.00 Bytes freed
SMA.Transient.g_alloc 0 . Allocations outstanding
SMA.Transient.g_bytes 0 . Bytes outstanding
SMA.Transient.g_space 0 . Bytes available
VBE.default(127.0.0.1,,8080).vcls 1 . VCL references
VBE.default(127.0.0.1,,8080).happy 0 . Happy health probes
VBE.default(127.0.0.1,,8080).bereq_hdrbytes 0 0.00 Request header bytes
VBE.default(127.0.0.1,,8080).bereq_bodybytes 0 0.00 Request body bytes
VBE.default(127.0.0.1,,8080).beresp_hdrbytes 0 0.00 Response header bytes
VBE.default(127.0.0.1,,8080).beresp_bodybytes 0 0.00 Response body bytes
VBE.default(127.0.0.1,,8080).pipe_hdrbytes 0 0.00 Pipe request header bytes
VBE.default(127.0.0.1,,8080).pipe_out 0 0.00 Piped bytes to backend
VBE.default(127.0.0.1,,8080).pipe_in 0 0.00 Piped bytes from backend
LCK.sms.creat 0 0.00 Created locks
LCK.sms.destroy 0 0.00 Destroyed locks
LCK.sms.locks 0 0.00 Lock Operations
LCK.smp.creat 0 0.00 Created locks
LCK.smp.destroy 0 0.00 Destroyed locks
LCK.smp.locks 0 0.00 Lock Operations
LCK.sma.creat 2 0.00 Created locks
LCK.sma.destroy 0 0.00 Destroyed locks
LCK.sma.locks 0 0.00 Lock Operations
LCK.smf.creat 0 0.00 Created locks
LCK.smf.destroy 0 0.00 Destroyed locks
LCK.smf.locks 0 0.00 Lock Operations
LCK.hsl.creat 0 0.00 Created locks
LCK.hsl.destroy 0 0.00 Destroyed locks
LCK.hsl.locks 0 0.00 Lock Operations
LCK.hcb.creat 1 0.00 Created locks
LCK.hcb.destroy 0 0.00 Destroyed locks
LCK.hcb.locks 16 0.01 Lock Operations
LCK.hcl.creat 0 0.00 Created locks
LCK.hcl.destroy 0 0.00 Destroyed locks
LCK.hcl.locks 0 0.00 Lock Operations
LCK.vcl.creat 1 0.00 Created locks
LCK.vcl.destroy 0 0.00 Destroyed locks
LCK.vcl.locks 2 0.00 Lock Operations
LCK.sessmem.creat 0 0.00 Created locks
LCK.sessmem.destroy 0 0.00 Destroyed locks
LCK.sessmem.locks 0 0.00 Lock Operations
LCK.sess.creat 0 0.00 Created locks
LCK.sess.destroy 0 0.00 Destroyed locks
LCK.sess.locks 0 0.00 Lock Operations
LCK.wstat.creat 1 0.00 Created locks
LCK.wstat.destroy 0 0.00 Destroyed locks
LCK.wstat.locks 930 0.32 Lock Operations
LCK.herder.creat 0 0.00 Created locks
LCK.herder.destroy 0 0.00 Destroyed locks
LCK.herder.locks 0 0.00 Lock Operations
LCK.wq.creat 3 0.00 Created locks
LCK.wq.destroy 0 0.00 Destroyed locks
LCK.wq.locks 1554 0.54 Lock Operations
LCK.objhdr.creat 1 0.00 Created locks
LCK.objhdr.destroy 0 0.00 Destroyed locks
LCK.objhdr.locks 0 0.00 Lock Operations
LCK.exp.creat 1 0.00 Created locks
LCK.exp.destroy 0 0.00 Destroyed locks
LCK.exp.locks 915 0.32 Lock Operations
LCK.lru.creat 2 0.00 Created locks
LCK.lru.destroy 0 0.00 Destroyed locks
LCK.lru.locks 0 0.00 Lock Operations
LCK.cli.creat 1 0.00 Created locks
LCK.cli.destroy 0 0.00 Destroyed locks
LCK.cli.locks 970 0.34 Lock Operations
LCK.ban.creat 1 0.00 Created locks
LCK.ban.destroy 0 0.00 Destroyed locks
LCK.ban.locks 9413 3.28 Lock Operations
LCK.vbp.creat 1 0.00 Created locks
LCK.vbp.destroy 0 0.00 Destroyed locks
LCK.vbp.locks 0 0.00 Lock Operations
LCK.backend.creat 1 0.00 Created locks
LCK.backend.destroy 0 0.00 Destroyed locks
LCK.backend.locks 0 0.00 Lock Operations
LCK.vcapace.creat 1 0.00 Created locks
LCK.vcapace.destroy 0 0.00 Destroyed locks
LCK.vcapace.locks 0 0.00 Lock Operations
LCK.nbusyobj.creat 0 0.00 Created locks
LCK.nbusyobj.destroy 0 0.00 Destroyed locks
LCK.nbusyobj.locks 0 0.00 Lock Operations
LCK.busyobj.creat 0 0.00 Created locks
LCK.busyobj.destroy 0 0.00 Destroyed locks
LCK.busyobj.locks 0 0.00 Lock Operations
LCK.mempool.creat 6 0.00 Created locks
LCK.mempool.destroy 0 0.00 Destroyed locks
LCK.mempool.locks 15306 5.33 Lock Operations
LCK.vxid.creat 1 0.00 Created locks
LCK.vxid.destroy 0 0.00 Destroyed locks
LCK.vxid.locks 0 0.00 Lock Operations
LCK.pipestat.creat 1 0.00 Created locks
LCK.pipestat.destroy 0 0.00 Destroyed locks
LCK.pipestat.locks 0 0.00 Lock Operations
`