Node execution failed

[King_Samuel_David]

@albertocabasvidani

{
“nodes”: [
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“parameters”: {
“operation”: “pdf”,
“options”: {}
},
“type”: “n8n-nodes-base.extractFromFile”,
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“id”: “c7529296-0db6-44f2-9f98-bcab47720bbf”,
“name”: “Extract from File”,
“notesInFlow”: true,
“notes”: “Qui dovremo aggiungere un check per pdf scannerizzati (se tolti /n e blankspace è molto corto)”
},
{
“parameters”: {
“type”: “SHA256”,
“binaryData”: true,
“dataPropertyName”: “hash”
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“type”: “n8n-nodes-base.crypto”,
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“id”: “e5dd86af-9391-4ae8-8a54-90f22b5169c6”,
“name”: “Crypto”
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{
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“fieldId”: “googleDriveFileID”,
“fieldValue”: “={{ $(‘Nuovo file’).item.json.id }}”
},
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}
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“name”: “Supabase RAG consulenze”
}
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{
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“mode”: “everyMinute”
}
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“triggerOn”: “specificFolder”,
“folderToWatch”: {
“__rl”: true,
“value”: “=1DFDY4s2C7BB83oXo-Cpx1KeGbVe3D3EX”,
“mode”: “id”
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“event”: “fileCreated”,
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“id”: “fb95ec33-b421-4f1b-a3a6-be4d6eb5fe48”,
“name”: “Nuovo file”,
“credentials”: {
“googleDriveOAuth2Api”: {
“id”: “LmNQkgOUmlRVqNP6”,
“name”: “Google Drive account”
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{
“parameters”: {
“operation”: “download”,
“fileId”: {
“__rl”: true,
“value”: “={{ $json.id }}”,
“mode”: “id”
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“id”: “555b182d-7e70-4147-9369-8075cd7035de”,
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“name”: “Google Drive account”
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{
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“operator”: {
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“leftValue”: “={{ $json.hash }}”,
“rightValue”: “={{ $(‘Crypto’).item.json.hash }}”,
“operator”: {
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{
“conditions”: {
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“conditions”: [
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“leftValue”: “={{ $json.hash }}”,
“rightValue”: “={{ $(‘Crypto’).item.json.hash }}”,
“operator”: {
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“combinator”: “and”
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“options”: {}
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“type”: “n8n-nodes-base.switch”,
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“id”: “450410dd-b8b3-4669-9ee5-7322bdc2671c”,
“name”: “Switch”
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{
“parameters”: {
“operation”: “download”,
“fileId”: {
“__rl”: true,
“value”: “={{ $(‘Loop Over Items’).item.json.id }}”,
“mode”: “id”
},
“options”: {}
},
“type”: “n8n-nodes-base.googleDrive”,
“typeVersion”: 3,
“position”: [
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“id”: “a2142c96-b14e-45c3-a0f4-f97b65f13c2d”,
“name”: “Google Drive”,
“credentials”: {
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“id”: “LmNQkgOUmlRVqNP6”,
“name”: “Google Drive account”
}
}
},
{
“parameters”: {
“operation”: “delete”,
“tableId”: “documents”,
“filterType”: “string”,
“filterString”: “=metadata->>driveID=like.{{ $(‘Loop Over Items’).item.json.id }}”
},
“type”: “n8n-nodes-base.supabase”,
“typeVersion”: 1,
“position”: [
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“id”: “eec76b88-df11-4bae-b766-5fe49222e72d”,
“name”: “Rimuovi esistenti”,
“alwaysOutputData”: true,
“credentials”: {
“supabaseApi”: {
“id”: “8UvoYOE0OwIkFdvG”,
“name”: “Supabase RAG consulenze”
}
}
},
{
“parameters”: {
“operation”: “update”,
“tableId”: “Record Manager”,
“filters”: {
“conditions”: [
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“keyName”: “id”,
“condition”: “eq”,
“keyValue”: “={{ $(‘Cerca record’).item.json.id }}”
}
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“fieldsUi”: {
“fieldValues”: [
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“fieldId”: “hash”,
“fieldValue”: “={{ $(‘Crypto’).item.json.hash }}”
}
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“position”: [
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“id”: “21dc090d-6554-48c0-9c4d-4b85e10daa96”,
“name”: “Aggiorna record”,
“credentials”: {
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“id”: “8UvoYOE0OwIkFdvG”,
“name”: “Supabase RAG consulenze”
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}
},
{
“parameters”: {
“operation”: “getAll”,
“tableId”: “Record Manager”,
“limit”: 1,
“filters”: {
“conditions”: [
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“keyName”: “googleDriveFileID”,
“condition”: “eq”,
“keyValue”: “={{ $(‘Loop Over Items’).item.json.id }}”
}
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“id”: “e0cee8bf-af0c-4f85-a0b6-4ba2c27d5c79”,
“name”: “Cerca record”,
“alwaysOutputData”: true,
“credentials”: {
“supabaseApi”: {
“id”: “8UvoYOE0OwIkFdvG”,
“name”: “Supabase RAG consulenze”
}
}
},
{
“parameters”: {
“aggregate”: “aggregateAllItemData”,
“options”: {}
},
“type”: “n8n-nodes-base.aggregate”,
“typeVersion”: 1,
“position”: [
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“id”: “5cc5c70f-2c54-4938-b270-3feb4dbbc49e”,
“name”: “Aggregate”
},
{
“parameters”: {
“jsCode”: “\n/**\n * Nodo Code per n8n senza dipendenze esterne: suddivide il testo in chunk ottimizzati per un sistema RAG,\n * evitando di tagliare a metà parole o frasi.\n * Input: items[0].json.text (testo estratto dal PDF)\n * Output: un array di items JSON con { chunk_id, text }\n */\n\n// Parametri configurabili\nconst maxChars = 1000; // lunghezza massima (in caratteri) per chunk\nconst overlapChars = 200; // caratteri di sovrapposizione tra chunk\n\n// Estrai il testo dall’input\nconst text = $(‘Extract from File’).first().json.text;\n\nconst chunks = ;\nlet start = 0;\nconst totalLength = text.length;\n\nwhile (start < totalLength) {\n // posizione massima teorica\n let tentativeEnd = Math.min(start + maxChars, totalLength);\n\n // Se non siamo alla fine, cerchiamo di non tagliare parole o frasi\n if (tentativeEnd < totalLength) {\n // cerca l’ultima fine frase (.\n const endOfSentence = text.lastIndexOf(/[.!?]\s/, tentativeEnd);\n if (endOfSentence > start + overlapChars) {\n tentativeEnd = endOfSentence + 1; // includi il carattere di punteggiatura\n } else {\n // altrimenti, cerca l’ultimo spazio\n const lastSpace = text.lastIndexOf(’ ', tentativeEnd);\n if (lastSpace > start + overlapChars) {\n tentativeEnd = lastSpace;\n }\n }\n }\n\n const chunkText = text.slice(start, tentativeEnd).trim();\n chunks.push(chunkText);\n\n // Calcola il nuovo start tenendo conto dell’overlap\n start = tentativeEnd - overlapChars;\n if (start < 0) start = 0;\n}\n\n// Restituisci ogni chunk come singolo item JSON\nreturn chunks.map((chunk, index) => ({\n json: {\n chunk_id: index,\n text: chunk,\n }\n}));\n”
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“id”: “55a84d1a-0777-4ef1-b2fb-b99271d8865b”,
“name”: “Dividi in chunk”
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“connections”: {
“Extract from File”: {
“main”: [
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{
“node”: “Dividi in chunk”,
“type”: “main”,
“index”: 0
}
]
]
},
“Crypto”: {
“main”: [
[
{
“node”: “Cerca record”,
“type”: “main”,
“index”: 0
}
]
]
},
“Crea riga Record Manager”: {
“main”: [
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{
“node”: “Google Drive”,
“type”: “main”,
“index”: 0
}
]
]
},
“Nuovo file”: {
“main”: [
[
{
“node”: “Loop Over Items”,
“type”: “main”,
“index”: 0
}
]
]
},
“Scarica file”: {
“main”: [
[
{
“node”: “Crypto”,
“type”: “main”,
“index”: 0
}
]
]
},
“Loop Over Items”: {
“main”: [
,
[
{
“node”: “Scarica file”,
“type”: “main”,
“index”: 0
}
]
]
},
“Switch”: {
“main”: [
[
{
“node”: “Crea riga Record Manager”,
“type”: “main”,
“index”: 0
}
],
[
{
“node”: “Loop Over Items”,
“type”: “main”,
“index”: 0
}
],
[
{
“node”: “Rimuovi esistenti”,
“type”: “main”,
“index”: 0
}
]
]
},
“Google Drive”: {
“main”: [
[
{
“node”: “Extract from File”,
“type”: “main”,
“index”: 0
}
]
]
},
“Rimuovi esistenti”: {
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[
{
“node”: “Aggregate”,
“type”: “main”,
“index”: 0
}
]
]
},
“Aggiorna record”: {
“main”: [
[
{
“node”: “Google Drive”,
“type”: “main”,
“index”: 0
}
]
]
},
“Cerca record”: {
“main”: [
[
{
“node”: “Switch”,
“type”: “main”,
“index”: 0
}
]
]
},
“Aggregate”: {
“main”: [
[
{
“node”: “Aggiorna record”,
“type”: “main”,
“index”: 0
}
]
]
},
“Dividi in chunk”: {
“main”: [

]
}
},
“pinData”: {
“Switch”: [
{}
]
},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “7e18863d7f2e01bbf64d0d610ea2ca18eca1b8503b2d1acd4463c4070ebc898f”
}
}

Also, u could try check the /metrics endpoint, I made a dashboard which u. can see stats for this.

N8n + Grafana Full Node.js Metrics Dashboard (JSON Example Included!)

Hey all, I thought I’d share my full working Grafana dashboard for monitoring n8n internals, Node.js process metrics, heap, GC duration, event loop lag, and more. This was built using the Prometheus metrics n8n exposes when you enable it manually link below to official n8n docs. Why? When running n8n in production or self-hosted, especially in high load / enterprise scenarios, it’s important to keep an eye on: Memory leaks Event loop lag GC pauses (major, minor, incremental) Heap…

This could help, but u can also use console.log to print.

You could also try limit the amount you process see if this changes and stops the crashing of the node.

also after a quick look at the code node,

this const endOfSentence = text.lastIndexOf(/[.!?]\s/, tentativeEnd);

may not place nicely in n8n and you could try using

with .slice() and .match() instead of lastIndexOf()

Hope this helps