Limiting factors when restoring a backup?

[tarjei]

Hi!

I am wondering what the limiting factors when restoring the elasticsearch and the cassandra backup in Dynatrace managed are?

Ofcourse it can be multiple, but what are some experiences on the speeds of restoring such backups?

Is it CPU or memory? or is it bandwith?

Are there any timings available from experience?

[Radoslaw_Szulgo]

During the restore, the script takes the data from the backup on the network file storage and streams it into Cassandra and Elasticsearch data storage. These are typical I/O operations, so they leverage mostly CPU, RAM (Cassandra and Elasticsearch processes), local disk I/O, and network bandwidth (and also disk speed) from NFS.