lotus/cmd/lotus-chainwatch/scheduler/refresh_top_miners_by_base_reward.go
Steven Allen 5733c71c50 Lint everything
We were ignoring quite a few error cases, and had one case where we weren't
actually updating state where we wanted to. Unfortunately, if the linter doesn't
pass, nobody has any reason to actually check lint failures in CI.

There are three remaining XXXs marked in the code for lint.
2020-08-20 20:46:36 -07:00

85 lines
2.0 KiB
Go

package scheduler
import (
"context"
"database/sql"
"time"
"golang.org/x/xerrors"
)
func setupTopMinerByBaseRewardSchema(ctx context.Context, db *sql.DB) error {
select {
case <-ctx.Done():
return nil
default:
}
tx, err := db.Begin()
if err != nil {
return err
}
if _, err := tx.Exec(`
create materialized view if not exists top_miners_by_base_reward as
with total_rewards_by_miner as (
select
b.miner,
sum(bbr.base_block_reward * b.win_count) as total_reward
from blocks b
inner join base_block_rewards bbr on b.parentstateroot = bbr.state_root
group by 1
) select
rank() over (order by total_reward desc),
miner,
total_reward
from total_rewards_by_miner
group by 2, 3;
create index if not exists top_miners_by_base_reward_miner_index
on top_miners_by_base_reward (miner);
create materialized view if not exists top_miners_by_base_reward_max_height as
select
b."timestamp"as current_timestamp,
max(b.height) as current_height
from blocks b
join base_block_rewards bbr on b.parentstateroot = bbr.state_root
where bbr.base_block_reward is not null
group by 1
order by 1 desc
limit 1;
`); err != nil {
return xerrors.Errorf("create top_miner_by_base_reward views: %w", err)
}
if err := tx.Commit(); err != nil {
return xerrors.Errorf("committing top_miner_by_base_reward views; %w", err)
}
return nil
}
func refreshTopMinerByBaseReward(ctx context.Context, db *sql.DB) error {
select {
case <-ctx.Done():
return nil
default:
}
t := time.Now()
defer func() {
log.Debugw("refresh top_miners_by_base_reward", "duration", time.Since(t).String())
}()
_, err := db.Exec("refresh materialized view top_miners_by_base_reward;")
if err != nil {
return xerrors.Errorf("refresh top_miners_by_base_reward: %w", err)
}
_, err = db.Exec("refresh materialized view top_miners_by_base_reward_max_height;")
if err != nil {
return xerrors.Errorf("refresh top_miners_by_base_reward_max_height: %w", err)
}
return nil
}