Feat/soroban reconciliation gap backfill#1012
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Olowodarey merged 7 commits intoJun 22, 2026
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Per-contract sync checkpoint to track last indexed ledger, chain head, and reconciliation metadata for gap detection and self-healing indexing. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Periodic reconciliation job that detects gaps between the last indexed ledger and chain head, then backfills missing events as PENDING for the existing indexer retry pipeline to process. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Both IndexerService.pollContractEvents and SorobanListener.pollEvents now call ReconciliationService.advanceCheckpoint after persisting events so the checkpoint never advances past events that failed to persist. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
GET /api/indexer/health/reconciliation exposes reconciliation status, whether it is running, last backfill count, and the lag in ledgers (always >= 0) between chain head and last indexed ledger. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…erModule Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…env vars Optional configuration for the reconciliation job with sensible defaults. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Soroban on-chain event reconciliation & gap-backfill job
Adds a self-healing reconciliation layer to the indexer that detects and backfills gaps between the last indexed ledger and chain head when the process goes down, RPC drops, or events are missed.
Changes
@Cronjob that detects ledger gaps and backfills missing events as PENDING for the existing retry pipelineIndexerServiceandSorobanListeneradvance the checkpoint; checkpoint never advances past events that failed to persistGET /api/indexer/health/reconciliationreports reconciliation status and non-negative lagRECONCILE_ENABLED,RECONCILE_INTERVAL_MS,RECONCILE_WINDOWwith sensible defaultschain_sync_checkpointstableTest plan
Closes #1004