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By monitoring PUT/DELETE and heal operations it is possible to track changed paths and keep a bloom filter for this data. This can help prioritize paths to scan. The bloom filter can identify paths that have not changed, and the few collisions will only result in a marginal extra workload. This can be implemented on either a bucket+(1 prefix level) with reasonable performance. The bloom filter is set to have a false positive rate at 1% at 1M entries. A bloom table of this size is about ~2500 bytes when serialized. To not force a full scan of all paths that have changed cycle bloom filters would need to be kept, so we guarantee that dirty paths have been scanned within cycle runs. Until cycle bloom filters have been collected all paths are considered dirty.
144 lines
6.7 KiB
Go
144 lines
6.7 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2016 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cmd
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import (
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"context"
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"io"
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"net/http"
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"github.com/minio/minio-go/v6/pkg/encrypt"
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bucketsse "github.com/minio/minio/pkg/bucket/encryption"
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"github.com/minio/minio/pkg/bucket/lifecycle"
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"github.com/minio/minio/pkg/bucket/object/tagging"
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"github.com/minio/minio/pkg/bucket/policy"
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"github.com/minio/minio/pkg/madmin"
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)
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// CheckCopyPreconditionFn returns true if copy precondition check failed.
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type CheckCopyPreconditionFn func(o ObjectInfo, encETag string) bool
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// GetObjectInfoFn is the signature of GetObjectInfo function.
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type GetObjectInfoFn func(ctx context.Context, bucket, object string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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// ObjectOptions represents object options for ObjectLayer operations
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type ObjectOptions struct {
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ServerSideEncryption encrypt.ServerSide
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UserDefined map[string]string
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PartNumber int
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CheckCopyPrecondFn CheckCopyPreconditionFn
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}
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// LockType represents required locking for ObjectLayer operations
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type LockType int
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const (
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noLock LockType = iota
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readLock
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writeLock
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)
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// ObjectLayer implements primitives for object API layer.
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type ObjectLayer interface {
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// Locking operations on object.
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NewNSLock(ctx context.Context, bucket string, objects ...string) RWLocker
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// Storage operations.
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Shutdown(context.Context) error
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CrawlAndGetDataUsage(ctx context.Context, bf *bloomFilter, updates chan<- DataUsageInfo) error
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StorageInfo(ctx context.Context, local bool) StorageInfo // local queries only local disks
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// Bucket operations.
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MakeBucketWithLocation(ctx context.Context, bucket string, location string) error
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GetBucketInfo(ctx context.Context, bucket string) (bucketInfo BucketInfo, err error)
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ListBuckets(ctx context.Context) (buckets []BucketInfo, err error)
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DeleteBucket(ctx context.Context, bucket string, forceDelete bool) error
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ListObjects(ctx context.Context, bucket, prefix, marker, delimiter string, maxKeys int) (result ListObjectsInfo, err error)
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ListObjectsV2(ctx context.Context, bucket, prefix, continuationToken, delimiter string, maxKeys int, fetchOwner bool, startAfter string) (result ListObjectsV2Info, err error)
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Walk(ctx context.Context, bucket, prefix string, results chan<- ObjectInfo) error
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// Object operations.
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// GetObjectNInfo returns a GetObjectReader that satisfies the
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// ReadCloser interface. The Close method unlocks the object
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// after reading, so it must always be called after usage.
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//
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// IMPORTANTLY, when implementations return err != nil, this
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// function MUST NOT return a non-nil ReadCloser.
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GetObjectNInfo(ctx context.Context, bucket, object string, rs *HTTPRangeSpec, h http.Header, lockType LockType, opts ObjectOptions) (reader *GetObjectReader, err error)
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GetObject(ctx context.Context, bucket, object string, startOffset int64, length int64, writer io.Writer, etag string, opts ObjectOptions) (err error)
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GetObjectInfo(ctx context.Context, bucket, object string, opts ObjectOptions) (objInfo ObjectInfo, err error)
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PutObject(ctx context.Context, bucket, object string, data *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error)
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CopyObject(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (objInfo ObjectInfo, err error)
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DeleteObject(ctx context.Context, bucket, object string) error
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DeleteObjects(ctx context.Context, bucket string, objects []string) ([]error, error)
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// Multipart operations.
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ListMultipartUploads(ctx context.Context, bucket, prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int) (result ListMultipartsInfo, err error)
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NewMultipartUpload(ctx context.Context, bucket, object string, opts ObjectOptions) (uploadID string, err error)
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CopyObjectPart(ctx context.Context, srcBucket, srcObject, destBucket, destObject string, uploadID string, partID int,
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startOffset int64, length int64, srcInfo ObjectInfo, srcOpts, dstOpts ObjectOptions) (info PartInfo, err error)
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PutObjectPart(ctx context.Context, bucket, object, uploadID string, partID int, data *PutObjReader, opts ObjectOptions) (info PartInfo, err error)
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ListObjectParts(ctx context.Context, bucket, object, uploadID string, partNumberMarker int, maxParts int, opts ObjectOptions) (result ListPartsInfo, err error)
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AbortMultipartUpload(ctx context.Context, bucket, object, uploadID string) error
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CompleteMultipartUpload(ctx context.Context, bucket, object, uploadID string, uploadedParts []CompletePart, opts ObjectOptions) (objInfo ObjectInfo, err error)
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// Healing operations.
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ReloadFormat(ctx context.Context, dryRun bool) error
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HealFormat(ctx context.Context, dryRun bool) (madmin.HealResultItem, error)
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HealBucket(ctx context.Context, bucket string, dryRun, remove bool) (madmin.HealResultItem, error)
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HealObject(ctx context.Context, bucket, object string, opts madmin.HealOpts) (madmin.HealResultItem, error)
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HealObjects(ctx context.Context, bucket, prefix string, opts madmin.HealOpts, fn healObjectFn) error
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ListBucketsHeal(ctx context.Context) (buckets []BucketInfo, err error)
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// Policy operations
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SetBucketPolicy(context.Context, string, *policy.Policy) error
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GetBucketPolicy(context.Context, string) (*policy.Policy, error)
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DeleteBucketPolicy(context.Context, string) error
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// Supported operations check
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IsNotificationSupported() bool
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IsListenBucketSupported() bool
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IsEncryptionSupported() bool
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// Compression support check.
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IsCompressionSupported() bool
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// Lifecycle operations
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SetBucketLifecycle(context.Context, string, *lifecycle.Lifecycle) error
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GetBucketLifecycle(context.Context, string) (*lifecycle.Lifecycle, error)
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DeleteBucketLifecycle(context.Context, string) error
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// Bucket Encryption operations
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SetBucketSSEConfig(context.Context, string, *bucketsse.BucketSSEConfig) error
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GetBucketSSEConfig(context.Context, string) (*bucketsse.BucketSSEConfig, error)
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DeleteBucketSSEConfig(context.Context, string) error
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// Backend related metrics
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GetMetrics(ctx context.Context) (*Metrics, error)
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// Check Readiness
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IsReady(ctx context.Context) bool
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// ObjectTagging operations
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PutObjectTag(context.Context, string, string, string) error
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GetObjectTag(context.Context, string, string) (tagging.Tagging, error)
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DeleteObjectTag(context.Context, string, string) error
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}
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