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Implement maddy_queue_length metric #780

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Implement maddy_queue_length metric #780

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7cfee98
fix: replace typo trasanactions with transactions
spiarh Apr 15, 2025
ad98777
feat: implement maddy_queue_length metric
spiarh Apr 15, 2025
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6 changes: 3 additions & 3 deletions internal/endpoint/smtp/metrics.go
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ var (
Namespace: "maddy",
Subsystem: "smtp",
Name: "started_transactions",
Help: "Amount of SMTP trasanactions started",
Help: "Amount of SMTP transactions started",
},
[]string{"module"},
)
Expand All @@ -35,7 +35,7 @@ var (
Namespace: "maddy",
Subsystem: "smtp",
Name: "smtp_completed_transactions",
Help: "Amount of SMTP trasanactions successfully completed",
Help: "Amount of SMTP transactions successfully completed",
},
[]string{"module"},
)
Expand All @@ -44,7 +44,7 @@ var (
Namespace: "maddy",
Subsystem: "smtp",
Name: "aborted_transactions",
Help: "Amount of SMTP trasanactions aborted",
Help: "Amount of SMTP transactions aborted",
},
[]string{"module"},
)
Expand Down
9 changes: 7 additions & 2 deletions internal/target/queue/queue.go
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Original file line number Diff line number Diff line change
Expand Up @@ -89,7 +89,6 @@ import (

// partialError describes state of partially successful message delivery.
type partialError struct {

// Underlying error objects for each recipient.
Errs map[string]error

Expand Down Expand Up @@ -129,7 +128,6 @@ type Queue struct {

// Retry delay is calculated using the following formula:
// initialRetryTime * retryTimeScale ^ (TriesCount - 1)

initialRetryTime time.Duration
retryTimeScale float64
maxTries int
Expand Down Expand Up @@ -635,6 +633,9 @@ func (q *Queue) removeFromDisk(msgMeta *module.MsgMetadata) {
if err := os.Remove(metaPath); err != nil {
dl.Error("failed to remove meta-data from disk", err)
}

queuedMsgs.WithLabelValues(q.name, q.location).Dec()

dl.Debugf("removed message from disk")
}

Expand Down Expand Up @@ -704,6 +705,8 @@ func (q *Queue) readDiskQueue() error {
ID: id,
})
loadedCount++

queuedMsgs.WithLabelValues(q.name, q.location).Inc()
}

if loadedCount != 0 {
Expand Down Expand Up @@ -762,6 +765,8 @@ func (q *Queue) storeNewMessage(meta *QueueMetadata, header textproto.Header, bo
return nil, err
}

queuedMsgs.WithLabelValues(q.name, q.location).Inc()

return buffer.FileBuffer{Path: bodyPath, LenHint: body.Len()}, nil
}

Expand Down
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