Litestream

Command: generations

The generations command lists all generations for a database or replica. It lists stats about their lag behind the primary database and the time range they cover.

Usage

List by database

This command format finds all generations across all replicas for a database that is specified in the configuration file. The -replica flag can optionally be used to filter by replica name.

litestream generations [arguments] DB_PATH

List by replica URL

This command format finds all generations for a single replica by using the replica URL. This approach is useful when you do not have a configuration file.

litestream generations [arguments] REPLICA_URL

Arguments 

-config PATH
    Specifies the configuration file.
    Defaults to /etc/litestream.yml

-no-expand-env
    Disables environment variable expansion in configuration file.

-replica NAME
    Optional, filters by replica.
    Only applies when listing database generations.

Example

This example shows a set of generations for the /var/lib/db database across two replicas (file & s3). The current generation fb47ba294ac8dd70 has minimal lag across both replicas and there is an older generation 3fe4669c8066974b that has not been removed yet.

$ litestream generations /var/lib/db
name  generation        lag    start                 end
file  fb47ba294ac8dd70  0.2s   2020-01-01T00:00:00Z  2021-01-01T00:00:00Z
s3    fb47ba294ac8dd70  1.3s   2020-01-01T00:00:00Z  2021-01-01T00:00:00Z
file  3fe4669c8066974b  10m3s  2020-01-01T00:00:00Z  2021-01-01T00:00:00Z
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Command: replicate →