Forum Discussion

Copper Contributor

May 02, 2019

Solved

Behavior while scaling cluster

Hi, I'm looking for information regarding cluster behavior while scaling. What I've seen in my tests is that query performance is severely impacted (I'd call it downtime) for a couple of minutes ...

Azure Data Explorer (Kusto)

Cluster Management

gabil
May 03, 2019
abergs

Hi,

During scaling operations that cluster goes through deployment; therefore it is not answering queries for a short time and does not ingest data. The data queued for ingestion will be ingested as soon as the cluster is up again.

I'll add this to one of our official docs.

Thanks,

Gabi

gabil

Microsoft

May 03, 2019

abergs

Hi,

During scaling operations that cluster goes through deployment; therefore it is not answering queries for a short time and does not ingest data. The data queued for ingestion will be ingested as soon as the cluster is up again.

I'll add this to one of our official docs.

Thanks,

Gabi

abergs
Copper Contributor
May 03, 2019
Follow up question: Is the ingestion endpoint affected by this re-deployment (with failures) or is the ingestion simply queued and delayed?
- gabil
  Microsoft
  May 03, 2019
  abergs
  
  The ingestion is delayed until the cluster is up and running and then it continues from the same point.
  
  Thanks,
  
  Gabi