mirror of
https://github.com/pezkuwichain/pezkuwi-subquery.git
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pezkuwichain
d270504c9a
Substrate nodes prune historical state by default (~256 blocks). When SubQuery restarts and tries to fetch runtime version for old blocks, it crashes with "State already discarded". This patch adds a fallback to current runtime version when historical state is unavailable, preventing crash loops on pruned RPC endpoints. Also removes --pull from deploy workflow to avoid unnecessary full rebuilds on every push.
55 lines
2.2 KiB
JavaScript
55 lines
2.2 KiB
JavaScript
/**
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* Patch @subql/node to handle pruned blockchain state.
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*
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* Problem: Substrate nodes prune historical state by default (~256 blocks).
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* When SubQuery restarts and tries to fetch runtime version for old blocks,
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* state_getRuntimeVersion fails with "State already discarded" and the node
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* enters a crash loop.
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*
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* Fix: When getRuntimeVersion(blockHash) fails due to pruned state,
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* fall back to getRuntimeVersion() (current runtime version).
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* This is safe for chains with infrequent spec upgrades.
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*/
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const fs = require("fs");
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// --- Patch 1: base-runtime.service.js ---
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// Handles getSpecFromApi() and getRuntimeVersion() which call
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// this.api.rpc.state.getRuntimeVersion(parentBlockHash)
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const runtimeFile =
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"/app/node_modules/@subql/node/dist/indexer/runtime/base-runtime.service.js";
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let runtimeCode = fs.readFileSync(runtimeFile, "utf8");
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const runtimeMatches = (
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runtimeCode.match(
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/await this\.api\.rpc\.state\.getRuntimeVersion\(\w+\)/g
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) || []
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).length;
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runtimeCode = runtimeCode.replace(
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/await this\.api\.rpc\.state\.getRuntimeVersion\((\w+)\)/g,
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"await this.api.rpc.state.getRuntimeVersion($1).catch(() => this.api.rpc.state.getRuntimeVersion())"
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);
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fs.writeFileSync(runtimeFile, runtimeCode);
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console.log(`Patched base-runtime.service.js (${runtimeMatches} call sites)`);
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// --- Patch 2: utils/substrate.js ---
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// Handles fetchRuntimeVersionRange() which calls
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// api.rpc.state.getRuntimeVersion(hash).catch((e) => { throw ... })
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const utilsFile =
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"/app/node_modules/@subql/node/dist/utils/substrate.js";
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let utilsCode = fs.readFileSync(utilsFile, "utf8");
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const utilsBefore = utilsCode.includes("getRuntimeVersion(hash).catch((e)");
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// Insert a fallback .catch before the existing error handler:
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// Original: getRuntimeVersion(hash).catch((e) => { throw... })
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// Patched: getRuntimeVersion(hash).catch(() => getRuntimeVersion()).catch((e) => { throw... })
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utilsCode = utilsCode.replace(
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/api\.rpc\.state\.getRuntimeVersion\(hash\)\.catch\(\(e\)/g,
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"api.rpc.state.getRuntimeVersion(hash).catch(() => api.rpc.state.getRuntimeVersion()).catch((e)"
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);
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fs.writeFileSync(utilsFile, utilsCode);
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console.log(`Patched utils/substrate.js (had target: ${utilsBefore})`);
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console.log("All pruned-state patches applied.");
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