storj/satellite/metabase/delete_bucket.go
Michal Niewrzal 6834c04539 satellite/metabase: drop pending objects table support
We decided that we won't use seprate table for handling pending
objects. We need to remove related code.

https://github.com/storj/storj/issues/6421

Change-Id: I442b0f58da75409f725e08e2cd83d29ed4f91ec6
2023-11-15 23:19:46 +00:00

104 lines
2.7 KiB
Go

// Copyright (C) 2020 Storj Labs, Inc.
// See LICENSE for copying information.
package metabase
import (
"context"
"storj.io/private/dbutil"
)
const (
deleteBatchSizeLimit = intLimitRange(50)
)
// DeleteBucketObjects contains arguments for deleting a whole bucket.
type DeleteBucketObjects struct {
Bucket BucketLocation
BatchSize int
}
// DeleteBucketObjects deletes all objects in the specified bucket.
// Deletion performs in batches, so in case of error while processing,
// this method will return the number of objects deleted to the moment
// when an error occurs.
func (db *DB) DeleteBucketObjects(ctx context.Context, opts DeleteBucketObjects) (deletedObjectCount int64, err error) {
defer mon.Task()(&ctx)(&err)
if err := opts.Bucket.Verify(); err != nil {
return 0, err
}
deleteBatchSizeLimit.Ensure(&opts.BatchSize)
deletedBatchCount := int64(opts.BatchSize)
for deletedBatchCount > 0 {
if err := ctx.Err(); err != nil {
return deletedObjectCount, err
}
deletedBatchCount, err = db.deleteBucketObjects(ctx, opts)
deletedObjectCount += deletedBatchCount
if err != nil {
return deletedObjectCount, err
}
}
return deletedObjectCount, nil
}
func (db *DB) deleteBucketObjects(ctx context.Context, opts DeleteBucketObjects) (deletedObjectCount int64, err error) {
defer mon.Task()(&ctx)(&err)
var query string
switch db.impl {
case dbutil.Cockroach:
query = `
WITH deleted_objects AS (
DELETE FROM objects
WHERE (project_id, bucket_name) = ($1, $2)
LIMIT $3
RETURNING objects.stream_id, objects.segment_count
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id IN (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id
)
SELECT COUNT(1), COALESCE(SUM(segment_count), 0) FROM deleted_objects
`
case dbutil.Postgres:
query = `
WITH deleted_objects AS (
DELETE FROM objects
WHERE stream_id IN (
SELECT stream_id FROM objects
WHERE (project_id, bucket_name) = ($1, $2)
LIMIT $3
)
RETURNING objects.stream_id, objects.segment_count
), deleted_segments AS (
DELETE FROM segments
WHERE segments.stream_id IN (SELECT deleted_objects.stream_id FROM deleted_objects)
RETURNING segments.stream_id
)
SELECT COUNT(1), COALESCE(SUM(segment_count), 0) FROM deleted_objects
`
default:
return 0, Error.New("unhandled database: %v", db.impl)
}
var deletedSegmentCount int64
err = db.db.QueryRowContext(ctx, query, opts.Bucket.ProjectID, []byte(opts.Bucket.BucketName), opts.BatchSize).Scan(&deletedObjectCount, &deletedSegmentCount)
if err != nil {
return 0, Error.Wrap(err)
}
mon.Meter("object_delete").Mark64(deletedObjectCount)
mon.Meter("segment_delete").Mark64(deletedSegmentCount)
return deletedObjectCount, nil
}