CrontabSpec(mapping=None, *, ignore_unknown_fields=False, **kwargs)CrontabSpec can be used to specify the version time and frequency at which the backup should be created.
Attributes |
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| Name | Description |
text |
str
Required. Textual representation of the crontab. User can customize the backup frequency and the backup version time using the cron expression. The version time must be in UTC timezone. The backup will contain an externally consistent copy of the database at the version time. Allowed frequencies are 12 hour, 1 day, 1 week and 1 month. Examples of valid cron specifications: - 0 2/12 * * * : every 12 hours at (2, 14) hours past
midnight in UTC.
- 0 2,14 * * * : every 12 hours at (2,14) hours past
midnight in UTC.
- 0 2 * * * : once a day at 2 past midnight in UTC.
- 0 2 * * 0 : once a week every Sunday at 2 past
midnight in UTC.
- 0 2 8 * * : once a month on 8th day at 2 past midnight
in UTC.
|
time_zone |
str
Output only. The time zone of the times in CrontabSpec.text. Currently only UTC is supported.
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creation_window |
google.protobuf.duration_pb2.Duration
Output only. Schedule backups will contain an externally consistent copy of the database at the version time specified in schedule_spec.cron_spec. However, Spanner
may not initiate the creation of the scheduled backups at
that version time. Spanner will initiate the creation of
scheduled backups within the time window bounded by the
version_time specified in schedule_spec.cron_spec and
version_time + creation_window.
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