如何使用wal-g进行增量备份

Question

Can someone help me with command line command or config to create delta backup following a base backup using wal-g ?

The base backup is done using the following command:

AWS_REGION=xxx WALG_S3_PREFIX=s3://xxx/delta_wal wal-g backup-push /var/lib/pgsql/10/data

I see config like WALG_DELTA_MAX_STEPS and WALG_DELTA_ORIGIN , but I am not able to figure out how to use them to create a delta backup.

Answer 1

您应该将WALG_DELTA_MAX_STEPS设置为大于0的数字。我建议6。这将指示WAL-G如果不能从一个备份中创建超过6个增量备份的链，则可以推送增量备份。