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[Feature request] Raise the number of maximum fields #1566

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LukeMathWalker opened this issue Sep 15, 2021 · 0 comments · Fixed by #2508
Closed

[Feature request] Raise the number of maximum fields #1566

LukeMathWalker opened this issue Sep 15, 2021 · 0 comments · Fixed by #2508

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@LukeMathWalker
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LukeMathWalker commented Sep 15, 2021 •
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Feature Request

Crates

Motivation

At the moment, 32 is the maximum number of fields that can be attached to a span.
While it might seem a lot, at TrueLayer we bumped into this limit several times: a complex business operation will involve several domain-relevant identifiers as well as multiple "technical" fields (e.g. OpenTelemetry required fields according to semantic conventions).

Proposal

I see two main options:

  • Make it configurable via a feature flag, similarly to what diesel does for the maximum number of columns. Those who need the feature pay the cost for it, all other users are not impacted;
  • Remove the limit entirely, using a growable data structure (which would perhaps unlock Add support for recording dynamic fields #1343 as well?), which I imagine would end up affecting performance by requiring more allocations?

Alternatives

Keep it as it? 🤷🏻‍♂️
@eopb eopb mentioned this issue Mar 14, 2023
Merged
hawkw pushed a commit that referenced this issue Sep 5, 2023
@eopb
core: allow ValueSets of any length (#2508)
1c855ae 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 26, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
407d88d 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 27, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
6fb787d 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 27, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
10713e7 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 27, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
d179ac8 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 27, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
3e1f23e 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
davidbarsky pushed a commit that referenced this issue Sep 29, 2023
@eopb @davidbarsky
core: allow ValueSets of any length (#2508)
b0e3c71 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
hawkw pushed a commit that referenced this issue Oct 1, 2023
@eopb @hawkw
core: allow ValueSets of any length (#2508)
1771128 
## Motivation

Fixes: #1566

## Solution

This change removes the maximum of 32 fields limitation using const
generics.

Having this arbitrary restriction in place to prevent stack overflows
feels a little misplaced to me since stack size varies between
environments.
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Allow value_sets of any length eopb/tracing
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@LukeMathWalker