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Hi Team, I am new to SigNoz, I have a nest js application running standalone and using nestjs-pino library for logging.. my logs are not exported to SigNoz.. can you help on this? instrumentations: [getNodeAutoInstrumentations()],

I am seeing this log repeating frequently in my click house instance. Any idea how to resolve it? My metrics are lagging.

2024.04.01 18:20:03.760284 [ 629 ] {} <Error> MergeTreeBackgroundExecutor: Exception while executing background task {3027d9e2-7d6b-4983-8164-e7da8d47f6c5::20240229_11958_12026_2}: Code: 117. DB::Exception: Invalid flag for negative store: (while reading from part /var/lib/clickhouse/store/302/3027d9e2-7d6b-4983-8164-e7da8d47f6c5/20240229_11976_11981_1/ in table signoz_metrics.exp_hist (3027d9e2-7d6b-4983-8164-e7da8d47f6c5) located on disk default of type local, from mark 0 with max_rows_to_read = 217): While executing MergeTreeSequentialSource. (INCORRECT_DATA), Stack trace (when copying this message, always include the lines below):

0. DB::Exception::Exception(DB::Exception::MessageMasked&&, int, bool) @ 0x000000000c800f1b in /usr/bin/clickhouse
1. DB::Exception::Exception<>(int, FormatStringHelperImpl<>) @ 0x000000000721a243 in /usr/bin/clickhouse
2. DB::DDSketchDenseLogarithmic::deserialize(DB::ReadBuffer&) @ 0x000000000d5260e0 in /usr/bin/clickhouse
3. DB::SerializationAggregateFunction::deserializeBinaryBulk(DB::IColumn&, DB::ReadBuffer&, unsigned long, double) const @ 0x00000000108b58e9 in /usr/bin/clickhouse
4. DB::ISerialization::deserializeBinaryBulkWithMultipleStreams(COW<DB::IColumn>::immutable_ptr<DB::IColumn>&, unsigned long, DB::ISerialization::DeserializeBinaryBulkSettings&, std::shared_ptr<DB::ISerialization::DeserializeBinaryBulkState>&, std::unordered_map<String, COW<DB::IColumn>::immutable_ptr<DB::IColumn>, std::hash<String>, std::equal_to<String>, std::allocator<std::pair<String const, COW<DB::IColumn>::immutable_ptr<DB::IColumn>>>>*) const @ 0x00000000108b01d9 in /usr/bin/clickhouse
5. DB::MergeTreeReaderCompact::readRows(unsigned long, unsigned long, bool, unsigned long, std::vector<COW<DB::IColumn>::immutable_ptr<DB::IColumn>, std::allocator<COW<DB::IColumn>::immutable_ptr<DB::IColumn>>>&) @ 0x000000001250a6b9 in /usr/bin/clickhouse
6. DB::MergeTreeSequentialSource::generate() @ 0x000000001251ca4d in /usr/bin/clickhouse
7. DB::ISource::tryGenerate() @ 0x000000001297acf5 in /usr/bin/clickhouse
8. DB::ISource::work() @ 0x000000001297a743 in /usr/bin/clickhouse
9. DB::ExecutionThreadContext::executeTask() @ 0x000000001299371a in /usr/bin/clickhouse
10. DB::PipelineExecutor::executeStepImpl(unsigned long, std::atomic<bool>*) @ 0x000000001298a170 in /usr/bin/clickhouse
11. DB::PipelineExecutor::executeStep(std::atomic<bool>*) @ 0x0000000012989928 in /usr/bin/clickhouse
12. DB::PullingPipelineExecutor::pull(DB::Chunk&) @ 0x0000000012998017 in /usr/bin/clickhouse
13. DB::PullingPipelineExecutor::pull(DB::Block&) @ 0x00000000129981d3 in /usr/bin/clickhouse
14. DB::MergeTask::ExecuteAndFinalizeHorizontalPart::executeImpl() @ 0x000000001233b6f2 in /usr/bin/clickhouse
15. DB::MergeTask::ExecuteAndFinalizeHorizontalPart::execute() @ 0x000000001233b64b in /usr/bin/clickhouse
16. DB::MergeTask::execute() @ 0x0000000012340d99 in /usr/bin/clickhouse
17. DB::MergePlainMergeTreeTask::executeStep() @ 0x0000000012723517 in /usr/bin/clickhouse
18. DB::MergeTreeBackgroundExecutor<DB::DynamicRuntimeQueue>::threadFunction() @ 0x00000000123532c4 in /usr/bin/clickhouse
19. ThreadPoolImpl<ThreadFromGlobalPoolImpl<false>>::worker(std::__list_iterator<ThreadFromGlobalPoolImpl<false>, void*>) @ 0x000000000c8eb0c1 in /usr/bin/clickhouse
20. void std::__function::__policy_invoker<void ()>::__call_impl<std::__function::__default_alloc_func<ThreadFromGlobalPoolImpl<false>::ThreadFromGlobalPoolImpl<void ThreadPoolImpl<ThreadFromGlobalPoolImpl<false>>::scheduleImpl<void>(std::function<void ()>, Priority, std::optional<unsigned long>, bool)::'lambda0'()>(void&&)::'lambda'(), void ()>>(std::__function::__policy_storage const*) @ 0x000000000c8ee8fa in /usr/bin/clickhouse
21. void* std::__thread_proxy[abi:v15000]<std::tuple<std::unique_ptr<std::__thread_struct, std::default_delete<std::__thread_struct>>, void ThreadPoolImpl<std::thread>::scheduleImpl<void>(std::function<void ()>, Priority, std::optional<unsigned long>, bool)::'lambda0'()>>(void*) @ 0x000000000c8ed6fe in /usr/bin/clickhouse
22. ? @ 0x000071d276b3b609
23. ? @ 0x000071d276a60353
 (version 24.1.2.5 (official build))

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Hello. I'm working on sending traces from a Nextjs app, and if I use the console exporter, I can see that there are traces being created. When I then switch to the OTLPTraceExporter, I'm getting the following error in my logs:

{"stack":"Error: connect ECONNREFUSED 127.0.0.1:4318\n    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1494:16)\n    at TCPConnectWrap.callbackTrampoline (node:internal/async_hooks:130:17)","message":"connect ECONNREFUSED 127.0.0.1:4318","errno":"-61","code":"ECONNREFUSED","syscall":"connect","address":"127.0.0.1","port":"4318","name":"Error"}

My instrumentation file: (Note access token has been redacted)

"use strict";

import { NodeSDK } from "@opentelemetry/sdk-node";
import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http";
import { Resource } from "@opentelemetry/resources";
import { SEMRESATTRS_SERVICE_NAME } from "@opentelemetry/semantic-conventions";
import { SimpleSpanProcessor } from "@opentelemetry/sdk-trace-node";
import { getNodeAutoInstrumentations } from "@opentelemetry/auto-instrumentations-node";
import { diag, DiagConsoleLogger, DiagLogLevel } from "@opentelemetry/api";

diag.setLogger(new DiagConsoleLogger(), <http://DiagLogLevel.INFO|DiagLogLevel.INFO>);

// configure the SDK to export telemetry data to the console
// enable all auto-instrumentations from the meta package
const exporterOptions = {
  url: "<https://ingest.eu.signoz.cloud:443/v1/traces>", // use your own data region or use localhost:8080 for self-hosted
  headers: { "signoz-access-token": "your-access-token" }, // Use if you are using SigNoz Cloud
};
const traceExporter = new OTLPTraceExporter(exporterOptions);
const sdk = new NodeSDK({
  resource: new Resource({
    [SEMRESATTRS_SERVICE_NAME]: `LEO-${process.env.APP_ENV}`,
  }),
  serviceName: `LEO-${process.env.APP_ENV}`,
  traceExporter,
  instrumentations: [getNodeAutoInstrumentations()],
  spanProcessors: [new SimpleSpanProcessor(new OTLPTraceExporter())],
});

// initialize the SDK and register with the OpenTelemetry API
// this enables the API to record telemetry
sdk.start();

// gracefully shut down the SDK on process exit
process.on("SIGTERM", () => {
  sdk
    .shutdown()
    .then(() => console.log("Tracing terminated"))
    .catch((error) => console.log("Error terminating tracing", error))
    .finally(() => process.exit(0));
});

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