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Trove/disk-space-coefficient

< Trove
Revision as of 11:36, 16 July 2014 by Denis M. (talk | contribs) (Configuration)

Disk space coefficient

Description

This feature is being proposed as part of backup size validation process.

Justification/Benefits

Justification

For certain reasons not all native backup tools are able to do streaming (like innobackupex, mysqldump). So when restore process gets initialized there's possible use case when proposed disk space(volume, flavor, ephemeral disk) has not enough space to pull and unpack backup from its storage.

Benefits

By adding specific per-datastore coefficient deployers are able to define how much times bigger given instance storage should be to be able to accomplish restoring.

Impacts

From user perspective. API service could raise certain exceptions if given instance storage is not enough to pull and unpack given backup.

Configuration

Configuration parameters are API service specific
Option group Option name Option type
Template:Datastore storage_space_coefficient Integer

Database

No changes


Public API

No changes

Internal API


From trove-api to trove-taskamanger

No changes


From trove-taskamanger to trove-guestagent

No changes