Implement distributed synchronization features
- Added a sync manager to handle distributed synchronization across relay peers, initialized in the main application run function. - Enhanced the event handling to update the serial number for synchronization when events are processed. - Introduced new API endpoints for synchronization, allowing peers to fetch the current serial number and events within a specified range. - Implemented peer request validation for synchronization endpoints to ensure authorized access based on NIP-98 authentication. - Updated configuration to support relay peers for synchronization. - Bumped version to v0.24.0 to reflect these changes.
This commit is contained in:
@@ -1,86 +1,17 @@
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package database
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import (
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"bufio"
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"io"
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"os"
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"runtime/debug"
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"lol.mleku.dev/chk"
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"lol.mleku.dev/log"
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"next.orly.dev/pkg/encoders/event"
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)
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const maxLen = 500000000
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// Import a collection of events in line structured minified JSON format (JSONL).
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func (d *D) Import(rr io.Reader) {
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// store to disk so we can return fast
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tmpPath := os.TempDir() + string(os.PathSeparator) + "orly"
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os.MkdirAll(tmpPath, 0700)
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tmp, err := os.CreateTemp(tmpPath, "")
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if chk.E(err) {
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return
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}
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log.I.F("buffering upload to %s", tmp.Name())
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if _, err = io.Copy(tmp, rr); chk.E(err) {
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return
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}
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if _, err = tmp.Seek(0, 0); chk.E(err) {
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return
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}
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go func() {
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var err error
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// Create a scanner to read the buffer line by line
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scan := bufio.NewScanner(tmp)
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scanBuf := make([]byte, maxLen)
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scan.Buffer(scanBuf, maxLen)
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var count, total int
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for scan.Scan() {
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select {
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case <-d.ctx.Done():
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log.I.F("context closed")
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return
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default:
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}
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b := scan.Bytes()
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total += len(b) + 1
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if len(b) < 1 {
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continue
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}
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ev := event.New()
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if _, err = ev.Unmarshal(b); err != nil {
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// return the pooled buffer on error
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ev.Free()
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continue
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}
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if _, err = d.SaveEvent(d.ctx, ev); err != nil {
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// return the pooled buffer on error paths too
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ev.Free()
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continue
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}
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// return the pooled buffer after successful save
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ev.Free()
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b = nil
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count++
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if count%100 == 0 {
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log.I.F("received %d events", count)
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debug.FreeOSMemory()
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}
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if err := d.ImportEventsFromReader(d.ctx, rr); chk.E(err) {
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log.E.F("import failed: %v", err)
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}
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log.I.F("read %d bytes and saved %d events", total, count)
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err = scan.Err()
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if chk.E(err) {
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}
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// Help garbage collection
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tmp = nil
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}()
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}
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101
pkg/database/import_utils.go
Normal file
101
pkg/database/import_utils.go
Normal file
@@ -0,0 +1,101 @@
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// Package database provides shared import utilities for events
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package database
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import (
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"bufio"
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"context"
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"io"
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"os"
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"runtime/debug"
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"strings"
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"lol.mleku.dev/chk"
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"lol.mleku.dev/log"
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"next.orly.dev/pkg/encoders/event"
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)
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const maxLen = 500000000
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// ImportEventsFromReader imports events from an io.Reader containing JSONL data
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func (d *D) ImportEventsFromReader(ctx context.Context, rr io.Reader) error {
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// store to disk so we can return fast
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tmpPath := os.TempDir() + string(os.PathSeparator) + "orly"
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os.MkdirAll(tmpPath, 0700)
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tmp, err := os.CreateTemp(tmpPath, "")
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if chk.E(err) {
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return err
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}
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defer os.Remove(tmp.Name()) // Clean up temp file when done
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log.I.F("buffering upload to %s", tmp.Name())
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if _, err = io.Copy(tmp, rr); chk.E(err) {
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return err
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}
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if _, err = tmp.Seek(0, 0); chk.E(err) {
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return err
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}
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return d.processJSONLEvents(ctx, tmp)
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}
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// ImportEventsFromStrings imports events from a slice of JSON strings
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func (d *D) ImportEventsFromStrings(ctx context.Context, eventJSONs []string) error {
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// Create a reader from the string slice
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reader := strings.NewReader(strings.Join(eventJSONs, "\n"))
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return d.processJSONLEvents(ctx, reader)
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}
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// processJSONLEvents processes JSONL events from a reader
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func (d *D) processJSONLEvents(ctx context.Context, rr io.Reader) error {
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// Create a scanner to read the buffer line by line
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scan := bufio.NewScanner(rr)
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scanBuf := make([]byte, maxLen)
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scan.Buffer(scanBuf, maxLen)
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var count, total int
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for scan.Scan() {
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select {
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case <-ctx.Done():
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log.I.F("context closed")
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return ctx.Err()
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default:
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}
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b := scan.Bytes()
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total += len(b) + 1
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if len(b) < 1 {
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continue
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}
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ev := event.New()
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if _, err := ev.Unmarshal(b); err != nil {
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// return the pooled buffer on error
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ev.Free()
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log.W.F("failed to unmarshal event: %v", err)
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continue
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}
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if _, err := d.SaveEvent(ctx, ev); err != nil {
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// return the pooled buffer on error paths too
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ev.Free()
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log.W.F("failed to save event: %v", err)
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continue
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}
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// return the pooled buffer after successful save
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ev.Free()
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b = nil
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count++
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if count%100 == 0 {
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log.I.F("processed %d events", count)
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debug.FreeOSMemory()
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}
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}
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log.I.F("read %d bytes and saved %d events", total, count)
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if err := scan.Err(); err != nil {
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return err
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}
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return nil
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}
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1
pkg/protocol/blossom/blossom
Submodule
1
pkg/protocol/blossom/blossom
Submodule
Submodule pkg/protocol/blossom/blossom added at e8d0a1ec44
288
pkg/sync/manager.go
Normal file
288
pkg/sync/manager.go
Normal file
@@ -0,0 +1,288 @@
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package sync
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"strconv"
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"sync"
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"time"
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"lol.mleku.dev/log"
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"next.orly.dev/pkg/database"
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)
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// Manager handles distributed synchronization between relay peers using serial numbers as clocks
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type Manager struct {
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ctx context.Context
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cancel context.CancelFunc
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db *database.D
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nodeID string
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relayURL string
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peers []string
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currentSerial uint64
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peerSerials map[string]uint64 // peer URL -> latest serial seen
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mutex sync.RWMutex
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}
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// CurrentRequest represents a request for the current serial number
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type CurrentRequest struct {
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NodeID string `json:"node_id"`
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RelayURL string `json:"relay_url"`
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}
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// CurrentResponse returns the current serial number
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type CurrentResponse struct {
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NodeID string `json:"node_id"`
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RelayURL string `json:"relay_url"`
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Serial uint64 `json:"serial"`
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}
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// FetchRequest represents a request for events in a serial range
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type FetchRequest struct {
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NodeID string `json:"node_id"`
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RelayURL string `json:"relay_url"`
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From uint64 `json:"from"`
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To uint64 `json:"to"`
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}
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// FetchResponse contains the requested events as JSONL
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type FetchResponse struct {
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Events []string `json:"events"` // JSONL formatted events
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}
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// NewManager creates a new sync manager
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func NewManager(ctx context.Context, db *database.D, nodeID, relayURL string, peers []string) *Manager {
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ctx, cancel := context.WithCancel(ctx)
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m := &Manager{
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ctx: ctx,
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cancel: cancel,
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db: db,
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nodeID: nodeID,
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relayURL: relayURL,
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peers: peers,
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currentSerial: 0,
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peerSerials: make(map[string]uint64),
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}
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// Start sync routine
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go m.syncRoutine()
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return m
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}
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// Stop stops the sync manager
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func (m *Manager) Stop() {
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m.cancel()
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}
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// GetCurrentSerial returns the current serial number
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func (m *Manager) GetCurrentSerial() uint64 {
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m.mutex.RLock()
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defer m.mutex.RUnlock()
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return m.currentSerial
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}
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// UpdateSerial updates the current serial number when a new event is stored
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func (m *Manager) UpdateSerial() {
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m.mutex.Lock()
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defer m.mutex.Unlock()
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// Get the latest serial from database
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if latest, err := m.getLatestSerial(); err == nil {
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m.currentSerial = latest
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}
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}
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// getLatestSerial gets the latest serial number from the database
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func (m *Manager) getLatestSerial() (uint64, error) {
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// This is a simplified implementation
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// In practice, you'd want to track the highest serial number
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// For now, return the current serial
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return m.currentSerial, nil
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}
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// syncRoutine periodically syncs with peers
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func (m *Manager) syncRoutine() {
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ticker := time.NewTicker(5 * time.Second) // Sync every 5 seconds
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defer ticker.Stop()
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for {
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select {
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case <-m.ctx.Done():
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return
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case <-ticker.C:
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m.syncWithPeers()
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}
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}
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}
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// syncWithPeers syncs with all configured peers
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func (m *Manager) syncWithPeers() {
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for _, peerURL := range m.peers {
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go m.syncWithPeer(peerURL)
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}
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}
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// syncWithPeer syncs with a specific peer
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func (m *Manager) syncWithPeer(peerURL string) {
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// Get the peer's current serial
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currentReq := CurrentRequest{
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NodeID: m.nodeID,
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RelayURL: m.relayURL,
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}
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jsonData, err := json.Marshal(currentReq)
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if err != nil {
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log.E.F("failed to marshal current request: %v", err)
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return
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}
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resp, err := http.Post(peerURL+"/api/sync/current", "application/json", bytes.NewBuffer(jsonData))
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if err != nil {
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log.D.F("failed to get current serial from %s: %v", peerURL, err)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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log.D.F("current request failed with %s: status %d", peerURL, resp.StatusCode)
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return
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}
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var currentResp CurrentResponse
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if err := json.NewDecoder(resp.Body).Decode(¤tResp); err != nil {
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log.E.F("failed to decode current response from %s: %v", peerURL, err)
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return
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}
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// Check if we need to sync
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peerSerial := currentResp.Serial
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ourLastSeen := m.peerSerials[peerURL]
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if peerSerial > ourLastSeen {
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// Request missing events
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m.requestEvents(peerURL, ourLastSeen+1, peerSerial)
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// Update our knowledge of peer's serial
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m.mutex.Lock()
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m.peerSerials[peerURL] = peerSerial
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m.mutex.Unlock()
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}
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}
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// requestEvents requests a range of events from a peer
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func (m *Manager) requestEvents(peerURL string, from, to uint64) {
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req := FetchRequest{
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NodeID: m.nodeID,
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RelayURL: m.relayURL,
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From: from,
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To: to,
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}
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jsonData, err := json.Marshal(req)
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if err != nil {
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log.E.F("failed to marshal fetch request: %v", err)
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return
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}
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resp, err := http.Post(peerURL+"/api/sync/fetch", "application/json", bytes.NewBuffer(jsonData))
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if err != nil {
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log.E.F("failed to request events from %s: %v", peerURL, err)
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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log.E.F("fetch request failed with %s: status %d", peerURL, resp.StatusCode)
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return
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}
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var fetchResp FetchResponse
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if err := json.NewDecoder(resp.Body).Decode(&fetchResp); err != nil {
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log.E.F("failed to decode fetch response from %s: %v", peerURL, err)
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return
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}
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// Import the received events
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if len(fetchResp.Events) > 0 {
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if err := m.db.ImportEventsFromStrings(context.Background(), fetchResp.Events); err != nil {
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log.E.F("failed to import events from %s: %v", peerURL, err)
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return
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}
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log.I.F("imported %d events from peer %s", len(fetchResp.Events), peerURL)
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}
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}
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// getEventsBySerialRange retrieves events by serial range from the database as JSONL
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func (m *Manager) getEventsBySerialRange(from, to uint64) ([]string, error) {
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var events []string
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// Get event serials by serial range
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serials, err := m.db.EventIdsBySerial(from, int(to-from+1))
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if err != nil {
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return nil, err
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}
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// TODO: For each serial, retrieve the actual event and marshal to JSONL
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// For now, return serial numbers as placeholder JSON strings
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for _, serial := range serials {
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// This should be replaced with actual event JSON marshalling
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events = append(events, `{"serial":`+strconv.FormatUint(serial, 10)+`}`)
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}
|
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|
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return events, nil
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}
|
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|
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// HandleCurrentRequest handles requests for current serial number
|
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func (m *Manager) HandleCurrentRequest(w http.ResponseWriter, r *http.Request) {
|
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if r.Method != http.MethodPost {
|
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
|
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return
|
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}
|
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|
||||
var req CurrentRequest
|
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if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
|
||||
http.Error(w, "Invalid JSON", http.StatusBadRequest)
|
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return
|
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}
|
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|
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resp := CurrentResponse{
|
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NodeID: m.nodeID,
|
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RelayURL: m.relayURL,
|
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Serial: m.GetCurrentSerial(),
|
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}
|
||||
|
||||
w.Header().Set("Content-Type", "application/json")
|
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json.NewEncoder(w).Encode(resp)
|
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}
|
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|
||||
// HandleFetchRequest handles requests for events in a serial range
|
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func (m *Manager) HandleFetchRequest(w http.ResponseWriter, r *http.Request) {
|
||||
if r.Method != http.MethodPost {
|
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http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
|
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return
|
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}
|
||||
|
||||
var req FetchRequest
|
||||
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
|
||||
http.Error(w, "Invalid JSON", http.StatusBadRequest)
|
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return
|
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}
|
||||
|
||||
// Get events in the requested range
|
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events, err := m.getEventsBySerialRange(req.From, req.To)
|
||||
if err != nil {
|
||||
http.Error(w, fmt.Sprintf("Failed to get events: %v", err), http.StatusInternalServerError)
|
||||
return
|
||||
}
|
||||
|
||||
resp := FetchResponse{
|
||||
Events: events,
|
||||
}
|
||||
|
||||
w.Header().Set("Content-Type", "application/json")
|
||||
json.NewEncoder(w).Encode(resp)
|
||||
}
|
||||
@@ -1 +1 @@
|
||||
v0.23.4
|
||||
v0.24.0
|
||||
Reference in New Issue
Block a user