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cagov / ui-claim-tracker

This repo contains the Claim Status Tracker app, which helps Californians better understand what’s happening with their unemployment claim and benefits.

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Investigate `ApplicationInsights:Sender [ 'Ingestion endpoint could not be reached.` issue

rocketnova opened this issue · comments

commented

Description

Today, we received a new Application Insights error:

ApplicationInsights:Sender [
  'Ingestion endpoint could not be reached. This batch of telemetry items has been lost. Use Disk Retry Caching to enable resending of failed telemetry. Error:',
  "[object Error]{ stack: 'Error: read ECONNRESET\n" +
    '    at TLSWrap.onStreamRead (internal/stream_base_commons.js:209:20)\n' +
    "    at TLSWrap.callbackTrampoline (internal/async_hooks.js:129:14)', message: 'read ECONNRESET', name: 'Error'"
]

It looks like an ECONNRESET application error occurred, but Application Insights wasn't able to report it. I assume that Disk Retry Caching is on because we have the default configuration for setUseDiskRetryCaching(true), but the issue appears to be coming from https://github.com/microsoft/ApplicationInsights-node.js/blob/52d3937bbb59d5bb29ecb04dc7fa1c06c04baafa/Library/Sender.ts#L292 which should only be happening if retries are disabled. (Note: this code snippet is not for the exact version we have locked right now, so there may be a discrepency happening there).

Acceptance Criteria

  • Investigate the issue
  • Update this ticket with next steps if any
commented

Closing. This issue has never recurred.