SourceMaps don't show for all Errors

[akosanovic (Aleksandra Kosanovic)]

Some errors are pointing to the bundle.js files event tho I have uploaded the Source Maps.

Kibana version: 7.1

Elasticsearch version: 7.1

APM Server version:

APM Agent language and version:

Original install method (e.g. download page, yum, deb, from source, etc.) and version:

Fresh install or upgrade from other versions?:

Description of the problem including expected versus actual behavior. Please include screenshots (if relevant):

Using Angular 5 /CLI 1.7.4 to generate Source Maps and

• Angular 5 app with "@elastic/apm-rum": "^4.3.0",
• Using Angular CLI 1.7.4 to generate Source Maps
• Using CURL to upload them all to APM cloud server

(code)

npm config set user root
npm config set user root
npm install -g @angular/cli@1.7.4
npm install
ng build --sourcemaps=true --prod
echo "Uploading sourcemaps..."
cd dist/
ls -l
echo "starting curl part"
for i in *.map
do
  MAPNAME=$i
  BASENAME=$(basename $i .map)
  curl -X POST https://ASDF.apm.eu-west-1.aws.cloud.es.io:443/assets/v1/sourcemaps \
  -H "Authorization: Bearer tokenxxxyyy" \
  -F service_name="simplesite-checkout-app" \
  -F service_version="1.0" \
  -F bundle_filepath="https://www.ASD.com/checkout/$BASENAME" \
  -F sourcemap=@./$MAPNAME
done
echo "Deleting sourcemaps..."
rm -rf *.map

[simitt (Silvia Mitter)]

Hi @akosanovic, could you query for the error groups where you see references to a minified js and see what is stored in the sourcemap fields of those errors.

GET apm*error*/_search
{
  "query": {
    "term": {
      "error.grouping_key": {
        "value": "3fc00..."
      }
    }
  }
}

Check for error and updated in error.exceptions.stacktrace.sourcemap.*

[akosanovic (Aleksandra Kosanovic)]

Hi @simitt, thank you for your response.

I've looked over *bundle.js errors and they all have :

     "sourcemap": {
           "updated": true
     },

I'm new to APM so I'm not really sure what that means?

[simitt (Silvia Mitter)]

This looks like the sourcemaps were applied from within the APM Server then. For every updated stacktrace frame there should be a group original storing information before applying the sourcemapping. Can you compare the values of error.exceptions.stacktrace.[].sourcemap.original.filename and error.exceptions.stacktrace.[]sourcemap.filename? They should have a different value. If they show the same value for a frame where sourcemap.updated: true, could you please verify the sourcemap you uploaded is actually valid?

[akosanovic (Aleksandra Kosanovic)]

error.exceptions.stacktrace.[].sourcemap.original.filename and error.exceptions.stacktrace.[]sourcemap.filename are indeed showing the same values for each stacktrace with sourcemap being:

"sourcemap":{ 
   "updated":true
 },

Sourcemap seems valid, it's generated at the same time and looks like other sourcemaps.

[simitt (Silvia Mitter)]

That does sound as if either the sourcemap is not valid or missing a mapping for this stacktrace frame, or the sourcemap library we are using internally has a bug.

I cannot reproduce this issue locally, as the sourcemap functionality generally works as expected and I don't have a sourcemap file for which it doesn't. Is it possible for you to verify your sourcemap, e.g. by using another tool to validate and apply the sourcemap?