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snmp: Allow lines with empty or missing tags (#2172) 

The changes in #1848 resulted in lines being dropped if they had an empty
tag. Let's allow all lines that have empty or missing tags!
This commit is contained in:
Jonas Hahnfeld 2017-01-24 23:57:43 +01:00 committed by Cameron Sparr
parent 822333690f
commit c4d4185fb5
2 changed files with 27 additions and 17 deletions
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27
plugins/inputs/snmp/snmp.go
View File

@ -433,9 +433,7 @@ func (t Table) Build(gs snmpConnection, walk bool) (*RTable, error) {
if err != nil {
return nil, Errorf(err, "converting %q (OID %s) for field %s", ent.Value, ent.Name, f.Name)
}
if fvs, ok := fv.(string); !ok || fvs != "" {
ifv[""] = fv
}
ifv[""] = fv
}
} else {
err := gs.Walk(oid, func(ent gosnmp.SnmpPDU) error {
@ -456,9 +454,7 @@ func (t Table) Build(gs snmpConnection, walk bool) (*RTable, error) {
if err != nil {
return Errorf(err, "converting %q (OID %s) for field %s", ent.Value, ent.Name, f.Name)
}
if fvs, ok := fv.(string); !ok || fvs != "" {
ifv[idx] = fv
}
ifv[idx] = fv
return nil
})
if err != nil {
@ -476,14 +472,17 @@ func (t Table) Build(gs snmpConnection, walk bool) (*RTable, error) {
rtr.Fields = map[string]interface{}{}
rows[i] = rtr
}
if f.IsTag {
if vs, ok := v.(string); ok {
rtr.Tags[f.Name] = vs
// don't add an empty string
if vs, ok := v.(string); !ok || vs != "" {
if f.IsTag {
if ok {
rtr.Tags[f.Name] = vs
} else {
rtr.Tags[f.Name] = fmt.Sprintf("%v", v)
}
} else {
rtr.Tags[f.Name] = fmt.Sprintf("%v", v)
rtr.Fields[f.Name] = v
}
} else {
rtr.Fields[f.Name] = v
}
}
}
@ -494,10 +493,6 @@ func (t Table) Build(gs snmpConnection, walk bool) (*RTable, error) {
Rows: make([]RTableRow, 0, len(rows)),
}
for _, r := range rows {
if len(r.Tags) < tagCount {
// don't add rows which are missing tags, as without tags you can't filter
continue
}
rt.Rows = append(rt.Rows, r)
}
return &rt, nil

17
plugins/inputs/snmp/snmp_test.go
View File

@ -457,9 +457,24 @@ func TestTableBuild_walk(t *testing.T) {
"myfield4": 22,
},
}
assert.Len(t, tb.Rows, 2)
rtr3 := RTableRow{
Tags: map[string]string{},
Fields: map[string]interface{}{
"myfield2": 0,
"myfield3": float64(0.0),
},
}
rtr4 := RTableRow{
Tags: map[string]string{},
Fields: map[string]interface{}{
"myfield3": float64(9.999),
},
}
assert.Len(t, tb.Rows, 4)
assert.Contains(t, tb.Rows, rtr1)
assert.Contains(t, tb.Rows, rtr2)
assert.Contains(t, tb.Rows, rtr3)
assert.Contains(t, tb.Rows, rtr4)
}
func TestTableBuild_noWalk(t *testing.T) {