chore: copy localblocks into livestore module #6808
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| package livestore | ||
|
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||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "github.com/google/uuid" | ||
| "github.com/grafana/tempo/pkg/tempopb" | ||
| "github.com/grafana/tempo/pkg/traceql" | ||
| "github.com/grafana/tempo/tempodb/backend" | ||
| "github.com/grafana/tempo/tempodb/backend/local" | ||
| "github.com/grafana/tempo/tempodb/encoding" | ||
| "github.com/grafana/tempo/tempodb/encoding/common" | ||
| "go.uber.org/atomic" | ||
| ) | ||
|
|
||
| const nameFlushed = "flushed" | ||
|
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| // LocalBlock is a block stored in local storage. It can be searched and flushed to a remote backend, and | ||
| // permanently tracks the flushed time with a special file in the block. | ||
| type LocalBlock struct { | ||
| common.BackendBlock | ||
| reader backend.Reader | ||
| writer backend.Writer | ||
|
|
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| flushedTime atomic.Int64 // protecting flushedTime because it's accessed concurrently | ||
| } | ||
|
|
||
| var ( | ||
| _ common.Finder = (*LocalBlock)(nil) | ||
| _ common.Searcher = (*LocalBlock)(nil) | ||
| ) | ||
|
|
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| // NewLocalBlock creates a local block wrapper around an existing backend block. | ||
| func NewLocalBlock(ctx context.Context, existingBlock common.BackendBlock, l *local.Backend) *LocalBlock { | ||
| c := &LocalBlock{ | ||
| BackendBlock: existingBlock, | ||
| reader: backend.NewReader(l), | ||
| writer: backend.NewWriter(l), | ||
| } | ||
|
|
||
| flushedBytes, err := c.reader.Read(ctx, nameFlushed, (uuid.UUID)(c.BlockMeta().BlockID), c.BlockMeta().TenantID, nil) | ||
| if err == nil { | ||
| flushedTime := time.Time{} | ||
| if err := flushedTime.UnmarshalText(flushedBytes); err == nil { | ||
| c.flushedTime.Store(flushedTime.Unix()) | ||
| } | ||
| } | ||
|
|
||
| return c | ||
| } | ||
|
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| func (c *LocalBlock) FindTraceByID(ctx context.Context, id common.ID, opts common.SearchOptions) (*tempopb.TraceByIDResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.FindTraceByID") | ||
| defer span.End() | ||
| return c.BackendBlock.FindTraceByID(ctx, id, opts) | ||
| } | ||
|
|
||
| func (c *LocalBlock) Search(ctx context.Context, req *tempopb.SearchRequest, opts common.SearchOptions) (*tempopb.SearchResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.Search") | ||
| defer span.End() | ||
| return c.BackendBlock.Search(ctx, req, opts) | ||
| } | ||
|
|
||
| func (c *LocalBlock) SearchTags(ctx context.Context, scope traceql.AttributeScope, cb common.TagsCallback, mcb common.MetricsCallback, opts common.SearchOptions) error { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.SearchTags") | ||
| defer span.End() | ||
| return c.BackendBlock.SearchTags(ctx, scope, cb, mcb, opts) | ||
| } | ||
|
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||
| func (c *LocalBlock) SearchTagValues(ctx context.Context, tag string, cb common.TagValuesCallback, mcb common.MetricsCallback, opts common.SearchOptions) error { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.SearchTagValues") | ||
| defer span.End() | ||
| return c.BackendBlock.SearchTagValues(ctx, tag, cb, mcb, opts) | ||
| } | ||
|
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||
| func (c *LocalBlock) SearchTagValuesV2(ctx context.Context, tag traceql.Attribute, cb common.TagValuesCallbackV2, mcb common.MetricsCallback, opts common.SearchOptions) error { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.SearchTagValuesV2") | ||
| defer span.End() | ||
| return c.BackendBlock.SearchTagValuesV2(ctx, tag, cb, mcb, opts) | ||
| } | ||
|
|
||
| func (c *LocalBlock) Fetch(ctx context.Context, req traceql.FetchSpansRequest, opts common.SearchOptions) (traceql.FetchSpansResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.Fetch") | ||
| defer span.End() | ||
| return c.BackendBlock.Fetch(ctx, req, opts) | ||
| } | ||
|
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||
| func (c *LocalBlock) FetchSpans(ctx context.Context, req traceql.FetchSpansRequest, opts common.SearchOptions) (traceql.FetchSpansOnlyResponse, error) { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.FetchSpans") | ||
| defer span.End() | ||
| return c.BackendBlock.FetchSpans(ctx, req, opts) | ||
| } | ||
|
|
||
| func (c *LocalBlock) FetchTagValues(ctx context.Context, req traceql.FetchTagValuesRequest, cb traceql.FetchTagValuesCallback, mcb common.MetricsCallback, opts common.SearchOptions) error { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.FetchTagValues") | ||
| defer span.End() | ||
| return c.BackendBlock.FetchTagValues(ctx, req, cb, mcb, opts) | ||
| } | ||
|
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||
| func (c *LocalBlock) FetchTagNames(ctx context.Context, req traceql.FetchTagsRequest, cb traceql.FetchTagsCallback, mcb common.MetricsCallback, opts common.SearchOptions) error { | ||
| ctx, span := tracer.Start(ctx, "LocalBlock.FetchTagNames") | ||
| defer span.End() | ||
| return c.BackendBlock.FetchTagNames(ctx, req, cb, mcb, opts) | ||
| } | ||
|
|
||
| // FlushedTime returns the time the block was flushed, or the zero time if it has never been flushed. | ||
| func (c *LocalBlock) FlushedTime() time.Time { | ||
| unixTime := c.flushedTime.Load() | ||
| if unixTime == 0 { | ||
| return time.Time{} | ||
| } | ||
| return time.Unix(unixTime, 0) | ||
| } | ||
|
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||
| func (c *LocalBlock) SetFlushed(ctx context.Context) error { | ||
| flushedTime := time.Now() | ||
| flushedBytes, err := flushedTime.MarshalText() | ||
| if err != nil { | ||
| return fmt.Errorf("error marshalling flush time to text: %w", err) | ||
| } | ||
|
|
||
| err = c.writer.Write(ctx, nameFlushed, (uuid.UUID)(c.BlockMeta().BlockID), c.BlockMeta().TenantID, flushedBytes, nil) | ||
| if err != nil { | ||
| return fmt.Errorf("error writing local block flushed file: %w", err) | ||
| } | ||
|
|
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| c.flushedTime.Store(flushedTime.Unix()) | ||
| return nil | ||
| } | ||
|
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| func (c *LocalBlock) Write(ctx context.Context, w backend.Writer) error { | ||
| if err := encoding.CopyBlock(ctx, c.BlockMeta(), c.reader, w); err != nil { | ||
| return fmt.Errorf("error copying block from local to remote backend: %w", err) | ||
| } | ||
|
|
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| return c.SetFlushed(ctx) | ||
| } | ||
|
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| func (c *LocalBlock) SetDiskCache(ctx context.Context, cacheKey string, data []byte) error { | ||
| return c.writer.Write(ctx, cacheKey, (uuid.UUID)(c.BlockMeta().BlockID), c.BlockMeta().TenantID, data, nil) | ||
| } | ||
|
|
||
| func (c *LocalBlock) GetDiskCache(ctx context.Context, cacheKey string) ([]byte, error) { | ||
| data, err := c.reader.Read(ctx, cacheKey, (uuid.UUID)(c.BlockMeta().BlockID), c.BlockMeta().TenantID, nil) | ||
| if errors.Is(err, backend.ErrDoesNotExist) { | ||
| return nil, nil | ||
| } | ||
|
|
||
| return data, err | ||
| } |
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