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◢ Join Telegram◆ THE RPC EDGE LOG
Notes on Solana infrastructure, latency & speed.
Deep dives on shreds, gRPC streaming, co-location, and the engineering behind landing transactions first. Written by the team running the nodes.
FEATURED
DEEP DIVE
Solana Turbine Explained: How Blocks Propagate
How Solana leaders turn blocks into shreds, fan them through a stake-weighted Turbine tree, recover packet loss, and expose first-seen data before confirmation.
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HOW-TO
Yellowstone gRPC Filters for Solana: A TypeScript Cookbook
Copyable Yellowstone gRPC filters for Solana accounts, owners, memcmp data, transactions, slots, and account data slices, with the production rules that keep streams narrow and recoverable.
INFRA
Yellowstone gRPC Bandwidth: Measure Before You Buy
A field guide to estimating Yellowstone gRPC bandwidth from an exact filter, with conversion formulas and a measured RPCEdge Jupiter sample.
ARCHITECTURE
Observability for a Solana Trading Stack
A practical telemetry model for measuring first-seen latency, decode and decision time, transaction landing, commitment, retries, and tail failures across a Solana trading pipeline.
GUIDE
Solana Trading Bot RPC Requirements by Workload
A workload-first checklist for choosing JSON-RPC, WebSockets, Yellowstone gRPC, replay, and transaction sending without buying an HFT stack too early.
GUIDE
Zero-Downtime Solana RPC Migration Runbook
Move Solana reads, transaction delivery, and Yellowstone streams between providers with shadow traffic, acceptance gates, and a tested rollback path.
HOW-TO
Solana Priority Fees Explained: Landing Under Congestion
A practical guide to Solana priority fees: compute-unit limits, micro-lamport pricing, local fee markets, simulation, Jito tips, and adaptive fee policy.
INFRA
Co-location for Solana Trading: A Practical Latency Guide
How physical placement affects Solana read and send paths, what co-location means, and how to benchmark regions, routing, and tail latency without fooling yourself.
HOW-TO
Pump.fun v2 on Yellowstone: Track Trades and Migrations
Decode Pump.fun v2 trades, quote mints, completed curves, and PumpSwap migrations from a replay-safe Yellowstone gRPC transaction stream.
HOW-TO
Yellowstone gRPC Reconnect and Replay: A Production Guide
A practical recovery contract for Yellowstone gRPC: slot checkpoints, replay overlap, deduplication, keepalives, gap alarms, and RPC reconciliation.
HOW-TO
Monitor 500+ Solana Wallets with Yellowstone gRPC
Build a replay-safe Solana wallet monitor with Yellowstone filter shards, complete account-key resolution, bounded queues, and reconciliation.
HOW-TO
Meteora DLMM Bot Infrastructure: RPC, Yellowstone gRPC, and Safe Execution
A practical TypeScript architecture for monitoring Meteora DLMM pools, maintaining local state, reconciling stream updates, and submitting bounded transactions on Solana.
HOW-TO
Build a Solana Copy-Trading Bot with Yellowstone gRPC
A code-first TypeScript guide to watching a wallet with Yellowstone gRPC, decoding candidate swaps, controlling risk, and reconciling every action against Solana RPC.
DEEP DIVE
Alpenglow on Solana: RPC and gRPC Readiness Guide
Prepare Solana RPC, gRPC, and indexing systems for Alpenglow with a practical readiness worksheet.
INFRA
DoubleZero IBRL vs the Public Internet: When Distance Changes Transaction Placement
A paired Frankfurt benchmark compares DoubleZero IBRL with the public Internet and shows where network distance changed Solana transaction placement.
GUIDE
Which Solana Stream Do You Actually Need?
Poll, webhook, WSS, gRPC, or shred-class signal? A workload-first decision matrix so you stop buying the wrong firehose.
INFRA
DoubleZero IBRL vs Public Internet: What One Hour of Paired Sends Showed
Leader-paced A/B from Frankfurt: for every eligible Solana leader with DoubleZero TPU open, one tx over IBRL and one over the public Internet. Same host, same relay, same slot trigger. Placement over vanity RTT.
INFRA
SubscribeDeshred versus processed gRPC: What the Lifecycle Race Showed
55,424 matched Pump AMM signatures on mainnet from Frankfurt: pre-execution deshred vs processed Yellowstone gRPC. Same filter, same public TLS endpoint. First-seen is almost always deshred.
GUIDE
ShredStream Alternatives: The Solana Shred-Source Landscape in 2026
Jito ShredStream is free and everywhere, DoubleZero Edge is publishing 28ms-faster p95 numbers, and commercial feeds like Shreder sell decoded shreds by the month. An honest map of the options - and what it costs to run each one.
HOW-TO
Migrating from Syndica ChainStream to Yellowstone gRPC
Syndica retired its RPC and ChainStream APIs on Feb 14, 2026 and told users to migrate to Yellowstone gRPC. What actually changes, how the subscriptions map, and how to land the migration on a co-located endpoint.
INFRA
QUIC Transaction Relay: The First 1-Hour Mainnet Run
2,202 transactions through the co-located QUIC relay on Yellowstone TPU in Frankfurt. Observation rate 96.3%. Submit-to-deshred p50 104 ms. ACK is health, not landing.
GUIDE
Best Solana RPC for HFT: Low-Latency Colocation Checklist
What actually matters for HFT and trading bots: co-location with stake and Jito, first-seen shreds, single-tenant p99, and direct leader paths - not feature lists.
DEEP DIVE
Stake-Weighted QoS (SWQoS) on Solana, Explained
What Solana stake-weighted QoS changes, what trusted RPC-validator peering requires, and why better packet admission still cannot guarantee transaction landing.
HOW-TO
Solana RPC Methods: A Practical Reference
The Solana JSON-RPC methods you'll actually use, what each one does, where they bite, and when to reach for gRPC or shreds instead.
GUIDE
Solana Geyser Plugins, Explained
Geyser is the plugin interface that lets account, transaction, and slot data flow out of a validator as it is processed. Here is how it works.
GUIDE
Copy-Trading on Solana: The Infrastructure Behind It
Copy-trading bots watch a target wallet and mirror its trades. The hard part isn't the logic, it's seeing the trade and landing yours before the edge is gone.
ARCHITECTURE
Solana Arbitrage Bot Infrastructure: What You Actually Need
An arbitrage bot is mostly infrastructure, not strategy. Here's the ingest, decode, and execution stack a Solana arbitrage bot actually needs.
GUIDE
rpc edge vs Helius vs Triton: Solana Infrastructure, Compared
A current, source-linked comparison of RPCEdge, Helius, and Triton One for Solana RPC, Yellowstone gRPC, transaction sending, replay, and trading-bot workloads.
GUIDE
Jito on Solana: Bundles, Tips, Block Engine, MEV
How Jito bundles, tips, and the Block Engine auction work on Solana - and when direct TPU delivery beats a tip for landing a single tx.
GUIDE
Best Solana RPC Providers in 2026: Helius, Triton, QuickNode & More
Compare Solana RPC providers for bots and apps: latency, Yellowstone gRPC, transaction landing, pricing units, and when dedicated nodes beat shared. 2026 buyer checklist.
HOW-TO
Why Solana Transactions Fail: Blockhash, Fees, Leader Path
Most Solana transactions don't fail on-chain - they never land. Fix expired blockhash, priority fees, leader delivery, and SWQoS under congestion.
GUIDE
Solana Commitment Levels: Processed vs Confirmed vs Finalized
A plain reference to Solana's commitment levels, what each one guarantees, and which to pick for reads, writes, settlement, and HFT signal.
GUIDE
How to Choose a Solana RPC Provider (2026 Guide)
A buyer's guide for HFT desks, funds, and serious bot builders. The criteria that decide your edge, the red flags that drain your budget.
ARCHITECTURE
Building an HFT Data Pipeline on Solana: A Reference Architecture
From shred ingestion to landed transaction - a reference architecture for low-latency Solana trading, and where the milliseconds actually hide.
HOW-TO
Landing Transactions on Solana: Leader Paths and the Jito Block Engine
Sending a Solana transaction is easy; landing it fast, in the slot you wanted, is the hard part. How the leader schedule, the TPU, and Jito fit together.
DEEP DIVE
Reading Decoded Transactions Before Confirmation
"First-seen" means acting on a transaction while it's still propagating - before any node calls it confirmed. What that state is, and how to use it safely.
GUIDE
Yellowstone gRPC vs Standard RPC, Explained
Polling RPC asks the node "anything new?" on a loop. Geyser-based gRPC pushes updates the instant they happen. How the two models differ - and when to use each.
GUIDE
What Are Solana Shreds? The Fastest Way to Read On-Chain Data
Standard RPC shows you transactions after a block is confirmed. Shreds show them while it's still propagating - the foundation of low-latency Solana trading.
INFRA
Why RPC Polling Can't Keep Up With HFT on Solana
Polling a Solana RPC node asks the same question on a loop and pays in latency. Where the milliseconds go - and the architecture that removes them.
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