Pulsar topic very large backlog storage size critical
The topic backlog storage size is over 20 GB
>>>
sum
(
> 20*1024*1024*1024) by (topic)
The query checks each topic's pulsar_storage_size metric and counts those where the size exceeds 20 GB; if the summed count (by topic) is greater than zero—meaning at least one topic has a backlog larger than 20 GB—the alert is triggered.
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