# Debugging Transaction Buffering

Troubleshooting transaction buffering issues.

## Common Issues

**Buffer not draining**:

Check background processor status:

```bash
curl http://localhost:8000/health
```

Check database connectivity:

```bash
curl http://localhost:8000/api/site/info
```

**Transactions failing**:

View failed transactions:

```bash
redis-cli
> LRANGE site:observatory:failed_transactions 0 -1
```

**Replication lag**:

Check LSN status:

```bash
curl http://localhost:8000/health | jq '.replication_lag'
```

## Debugging Tools

See {doc}`redis-inspection` for Redis debugging commands.

See {doc}`../deep-dive/transaction-buffering/overview` for system architecture.