Use legacy CachedResult instead of CachedTrace (#142)

Saied Kazemi · web-flow · commit 2b6a0b8c7cf5 · 2022-02-28T15:25:39.000-08:00
This commit changes the CachedTrace field name in the metadata
line back to CachedResult to prevent a breakage in the ETL parser.

The changes were tested locally.
diff --git a/parser/parser.go b/parser/parser.go
@@ -7,6 +7,7 @@ import (
 	"time"
 )
 
+// Errors returned by parser.
 var (
 	ErrTracerouteType = errors.New("unknown traceroute type")
 	ErrTracerouteFile = errors.New("invalid traceroute file")
diff --git a/parser/testdata/scamper2/invalid-cycle-start b/parser/testdata/scamper2/invalid-cycle-start
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start, "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-cycle-start-type b/parser/testdata/scamper2/invalid-cycle-start-type
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start-invalid", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace"}
 {"type":"cycle-stop"}
diff --git a/parser/testdata/scamper2/invalid-cycle-stop b/parser/testdata/scamper2/invalid-cycle-stop
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop, "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-cycle-stop-type b/parser/testdata/scamper2/invalid-cycle-stop-type
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start"}
 {"type":"trace"}
 {"type":"cycle-stop-invalid", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-last-line b/parser/testdata/scamper2/invalid-last-line
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-metadata b/parser/testdata/scamper2/invalid-metadata
@@ -1,4 +1,4 @@
-{"UUID":,"TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":,"TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-metadata-uuid b/parser/testdata/scamper2/invalid-metadata-uuid
@@ -1,4 +1,4 @@
-{"UUID":"","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-num-lines b/parser/testdata/scamper2/invalid-num-lines
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-trace b/parser/testdata/scamper2/invalid-trace
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/parser/testdata/scamper2/invalid-trace-links b/parser/testdata/scamper2/invalid-trace-links
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51803", "id":1, "hostname":"ndt-plh7v", "start_time":1566691268}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51803", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691541}
diff --git a/parser/testdata/scamper2/invalid-trace-type b/parser/testdata/scamper2/invalid-trace-type
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start"}
 {"type":"trace-invalid","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
 {"type":"cycle-stop"}
diff --git a/parser/testdata/scamper2/valid-simple b/parser/testdata/scamper2/valid-simple
@@ -1,4 +1,4 @@
-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}
+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}
 {"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}
 {"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16}
 {"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}
diff --git a/tracer/scamper_test.go b/tracer/scamper_test.go
@@ -85,9 +85,9 @@ func TestTrace(t *testing.T) {
 		{"testdata/fail", "mda", true, true, "exit status 1"},
 		{"testdata/loop", "mda", true, true, "signal: killed"},
 
-		{"/bin/echo", "mda", true, false, `{"UUID":"","TracerouteCallerVersion":"` + prometheusx.GitShortCommit + `","CachedTrace":false,"CachedUUID":""}
+		{"/bin/echo", "mda", true, false, `{"UUID":"","TracerouteCallerVersion":"` + prometheusx.GitShortCommit + `","CachedResult":false,"CachedUUID":""}
 -o- -O json -I tracelb -P icmp-echo -q 3 -W 39 -O ptr 10.1.1.1`},
-		{"/bin/echo", "mda", false, false, `{"UUID":"","TracerouteCallerVersion":"` + prometheusx.GitShortCommit + `","CachedTrace":false,"CachedUUID":""}
+		{"/bin/echo", "mda", false, false, `{"UUID":"","TracerouteCallerVersion":"` + prometheusx.GitShortCommit + `","CachedResult":false,"CachedUUID":""}
 -o- -O json -I tracelb -P icmp-echo -q 3 -W 39 10.1.1.1`},
 	}
 	for _, test := range tests {
@@ -237,8 +237,8 @@ func TestCachedTrace(t *testing.T) {
 	if m.TracerouteCallerVersion != "Fake Version" {
 		t.Errorf("got traceroute caller version %q, want %q", m.TracerouteCallerVersion, "Fake Version")
 	}
-	if m.CachedTrace != true {
-		t.Errorf("got cached result %v, want true", m.CachedTrace)
+	if m.CachedResult != true {
+		t.Errorf("got cached result %v, want true", m.CachedResult)
 	}
 	wantUUID = "ndt-plh7v_1566050090_000000000004D64D"
 	if m.CachedUUID != "ndt-plh7v_1566050090_000000000004D64D" {
@@ -277,7 +277,7 @@ func TestDontTrace(t *testing.T) {
 func TestCreateMetaline(t *testing.T) {
 	prometheusx.GitShortCommit = "Fake Version"
 	gotMeta := createMetaline("0000000000000ABC", true, "00EF")
-	wantMeta := []byte("0000000000000ABC\",\"TracerouteCallerVersion\":\"Fake Version\",\"CachedTrace\":true,\"CachedUUID\":\"00EF\"")
+	wantMeta := []byte("0000000000000ABC\",\"TracerouteCallerVersion\":\"Fake Version\",\"CachedResult\":true,\"CachedUUID\":\"00EF\"")
 	if !bytes.Contains(gotMeta, wantMeta) {
 		t.Errorf("gotMeta %q does not contain wantMeta %q", gotMeta, wantMeta)
 	}
diff --git a/tracer/tracer.go b/tracer/tracer.go
@@ -89,7 +89,7 @@ var (
 type Metadata struct {
 	UUID                    string
 	TracerouteCallerVersion string
-	CachedTrace             bool
+	CachedResult            bool
 	CachedUUID              string
 }
 
@@ -120,7 +120,7 @@ func createMetaline(uuid string, isCache bool, cachedUUID string) []byte {
 	meta := Metadata{
 		UUID:                    uuid,
 		TracerouteCallerVersion: prometheusx.GitShortCommit,
-		CachedTrace:             isCache,
+		CachedResult:            isCache,
 		CachedUUID:              cachedUUID,
 	}
 	metaJSON, _ := json.Marshal(meta)

Original file line number	Diff line number	Diff line change
`@@ -7,6 +7,7 @@ import (`
`7`	`7`	`"time"`
`8`	`8`	`)`
`9`	`9`
	`10`	`+// Errors returned by parser.`
`10`	`11`	`var (`
`11`	`12`	`ErrTracerouteType = errors.New("unknown traceroute type")`
`12`	`13`	`ErrTracerouteFile = errors.New("invalid traceroute file")`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedTrace":false,"CachedUUID":""}`
	`1`	`+{"UUID":"0000000000","TracerouteCallerVersion":"0000000","CachedResult":false,"CachedUUID":""}`
`2`	`2`	`{"type":"cycle-start", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "start_time":1566691298}`
`3`	`3`	{"type":"trace","version":"0.1","userid":0,"method":"icmp-echo-paris","src":"192.168.144.2","dst":"91.189.88.142","icmp_sum":33009,"stop_reason":"COMPLETED","stop_data":0,"start":{"sec":1638999963,"usec":787829,"ftime":"2021-12-08 21:46:03"},"hop_count":2,"attempts":2,"hoplimit":0,"firsthop":1,"wait":5,"wait_probe":0,"tos":0,"probe_size":44,"probe_count":16,"hops":[{"addr":"192.168.144.1","probe_ttl":1,"probe_id":1,"probe_size":44,"tx":{"sec":1638999963,"usec":788025},"rtt":0.07,"reply_ttl":64,"reply_tos":192,"reply_ipid":11379,"reply_size":72,"icmp_type":11,"icmp_code":0,"icmp_q_ttl":1,"icmp_q_ipl":44,"icmp_q_tos":0},{"addr":"91.189.88.142","probe_ttl":14,"probe_id":1,"probe_size":44,"tx":{"sec":1638999984,"usec":523505},"rtt":135.61,"reply_ttl":46,"reply_tos":128,"reply_ipid":26001,"reply_size":44,"icmp_type":0,"icmp_code":0}]}
`4`	`4`	`{"type":"cycle-stop", "list_name":"/tmp/scamperctrl:51811", "id":1, "hostname":"ndt-plh7v", "stop_time":1566691298}`