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cmd/stdiscosrv: Delete records for abandoned devices (#4957)

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Once a device has been missing for a long time, and noone has asked
about it for a long time, delete the record.
This commit is contained in:
Jakob Borg 2018-05-16 09:26:20 +02:00 committed by GitHub
parent c08024ebb8
commit 127c891526
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 13 additions and 0 deletions
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12
cmd/stdiscosrv/database.go
View File

@ -195,6 +195,7 @@ func (s *levelDBStore) statisticsServe(trigger <-chan struct{}, done chan<- stru
nowNanos := t0.UnixNano()
cutoff24h := t0.Add(-24 * time.Hour).UnixNano()
cutoff1w := t0.Add(-7 * 24 * time.Hour).UnixNano()
cutoff2Mon := t0.Add(-60 * 24 * time.Hour).UnixNano()
current, last24h, last1w, inactive, errors := 0, 0, 0, 0, 0
iter := s.db.NewIterator(&util.Range{}, nil)
@ -217,6 +218,17 @@ func (s *levelDBStore) statisticsServe(trigger <-chan struct{}, done chan<- stru
last24h++
case rec.Seen > cutoff1w:
last1w++
case rec.Seen > cutoff2Mon:
inactive++
case rec.Missed < cutoff2Mon:
// It hasn't been seen lately and we haven't recorded
// someone asking for this device in a long time either;
// delete the record.
if err := s.db.Delete(iter.Key(), nil); err != nil {
databaseOperations.WithLabelValues(dbOpDelete, dbResError).Inc()
} else {
databaseOperations.WithLabelValues(dbOpDelete, dbResSuccess).Inc()
}
default:
inactive++
}

1
cmd/stdiscosrv/stats.go
View File

@ -95,6 +95,7 @@ const (
dbOpGet = "get"
dbOpPut = "put"
dbOpMerge = "merge"
dbOpDelete = "delete"
dbResSuccess = "success"
dbResNotFound = "not_found"
dbResError = "error"