etcdDatabaseHighFragmentationRatio should change default rule

[zgfh]

What happened?

https://github.com/etcd-io/etcd/blob/main/contrib/mixin/alerts/alerts.libsonnet#L222
I meet alert: etcdDatabaseHighFragmentationRatio

becuse the default quota space is 2G of etcd

I this is ok if there just 50M fragmentation
should we change the rule to 1024M? like this(1073741824=1024M):

(last_over_time(etcd_mvcc_db_total_size_in_use_in_bytes[5m]) / last_over_time(etcd_mvcc_db_total_size_in_bytes[5m])) < 0.5 and etcd_mvcc_db_total_size_in_use_in_bytes > 1073741824

the default alert is

  (last_over_time(etcd_mvcc_db_total_size_in_use_in_bytes[5m]) / last_over_time(etcd_mvcc_db_total_size_in_bytes[5m])) < 0.5 and etcd_mvcc_db_total_size_in_use_in_bytes > 104857600

[simonpasquier]

You'd need to ask to https://github.com/etcd-io/etcd/

[slashpai]

closing as this is related to https://github.com/etcd-io/etcd

[zgfh]

link: etcd-io/etcd#18620