Sometimes my artillery run with playwright failures fails to record any traces

[jameswilliams-iml]

Discussed in #3389

^{Originally posted by zoe-jobson-IL October 23, 2024}
e.g. https://app.artillery.io/share/sh_a0a33bc4ae2074c1c9ef078796794cab867d0e1290a9ccfcfe367204424616bb
And sometimes I get a trace for one error type but not another
https://app.artillery.io/share/sh_67db5ce407b7c199ed8564d3fcc9949273c200bf9315d8cb4370e241058919c2

Good afternoon,
Is there any chance this issue above is something that can be checked out? I get runs with failures which are not producing the Traces and these would be really useful.
Thank you

[jameswilliams-iml]

Example test ran today with no trace seen here https://app.artillery.io/share/sh_72d40c2fab2e3577653ebed86e6abf039d15f2fa976012e7a1f90406f1667310

[hassy]

thanks @jameswilliams-iml! this can happen due to how trace recordings work. For performance reasons Artillery only records traces for 3 VUs at a time (relevant code here) - so if it happens that none of those VUs failed, no traces will be recorded. This is configurable - you can increase it with something like this:

config:
  engines:
    playwright:
      trace:
        enabled: true
        maxConcurrentRecordings: 10

The exact number may need to be tweaked depending on how many VUs are being created in total / are failing.

[jameswilliams-iml]

ok thank @hassy I will give this a try