AutobatcherTelemetryComponents stores metric references

[schlosna]

General

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==COMMIT_MSG==
==COMMIT_MSG==

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[changelog-app]

Generate changelog in changelog/@unreleased

What do the change types mean?

• feature: A new feature of the service.
• improvement: An incremental improvement in the functionality or operation of the service.
• fix: Remedies the incorrect behaviour of a component of the service in a backwards-compatible way.
• break: Has the potential to break consumers of this service's API, inclusive of both Palantir services
  and external consumers of the service's API (e.g. customer-written software or integrations).
• deprecation: Advertises the intention to remove service functionality without any change to the
  operation of the service itself.
• manualTask: Requires the possibility of manual intervention (running a script, eyeballing configuration,
  performing database surgery, ...) at the time of upgrade for it to succeed.
• migration: A fully automatic upgrade migration task with no engineer input required.

Note: only one type should be chosen.

How are new versions calculated?

• ❗The break and manual task changelog types will result in a major release!
• 🐛 The fix changelog type will result in a minor release in most cases, and a patch release version for patch branches. This behaviour is configurable in autorelease.
• ✨ All others will result in a minor version release.

Type

• Feature
• Improvement
• Fix
• Break
• Deprecation
• Manual task
• Migration

Description

AutobatcherTelemetryComponents stores metric references

Check the box to generate changelog(s)

• Generate changelog entry

[ergo14]

These metrics were used for some autobatcher perf analysis. With the recent metric review we've been doing, I considered the following:

• Removing some of the extra percentiles
• Remove the metrics
• Guard the reporting of metrics behind log.isDebugEnabled

If the issue you are fixing is perf related, it might be better to just do the latter?

[schlosna]

These popped up in some JFRs I was looking at for a 🏔️ service. I can push a separate PR to remove these if we no longer need them.

[ergo14]

These popped up in some JFRs I was looking at for a 🏔️ service. I can push a separate PR to remove these if we no longer need them.

I'd prefer to guard them against the debug log flag. We don't need them in steady state, but might want to enable in the future if we want to investigate the autobatcher perf again & possibly when support issues require it

[ergo14]

@schlosna Do you still want this? I think I can review this with your proposal (no need for debug guards, we did not find these to be contributing to metric load that much) if you are happy with it

[schlosna]

Let me take another pass at some recent profiles to assess current overhead.