How to monitor the number of events in Dead letter queue

Elastic Stack Logstash
1

Hi Team,

We have configured Dead Letter Queue(DLQ) in our Logstash layer.
We want to be alerted when the number of events in DLQ increase beyond a certain limit.

I tried going through the Logstash Monitoring docs, but didn't find. way a metric for this.

Please help in this regard.

2

Hi,

I don't know if this is still up to date but would something like this work for you? Monitoring dead letter queue (DLQ)

There is a LogStash REST API which exposes LogStash metrics and according to this post there is a field describing the dlq size in bytes.

Best regards
Wolfram

3

Hi Wolfram,

Thanks for the reply. The size of the dead letter queue can be found out using the REST API.
It would have been better if the metric could have been a part of the .monitoring-logstash indices.

4

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