[jira] [Updated] (IMPALA-8236) Adding new TUnit values to runtime profile is broken
[
https://issues.apache.org/jira/browse/IMPALA-8236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tim Armstrong updated IMPALA-8236:
--
Affects Version/s: Impala 2.12.0
Impala 3.1.0
> Adding new TUnit values to runtime profile is broken
>
>
> Key: IMPALA-8236
> URL: https://issues.apache.org/jira/browse/IMPALA-8236
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
>Affects Versions: Impala 2.12.0, Impala 3.1.0
>Reporter: Tim Armstrong
>Priority: Major
> Labels: observability
>
> See IMPALA-8235 for context.
> The problem this tracks is that there's no way to add a new value to the
> TUnit enum, which is required in TCounter, without breaking existing readers
> (at least Java readers), which will fail to decode TCounter values with an
> enum value they don't recognise.
> The workaround is to only use the following units in anything that is
> serialised into a TCounter:
> {noformat}
> UNIT,
> UNIT_PER_SECOND,
> CPU_TICKS,
> BYTES
> BYTES_PER_SECOND,
> TIME_NS,
> DOUBLE_VALUE
> {noformat}
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[jira] [Updated] (IMPALA-8236) Adding new TUnit values to runtime profile is broken
[
https://issues.apache.org/jira/browse/IMPALA-8236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tim Armstrong updated IMPALA-8236:
--
Labels: observability (was: )
> Adding new TUnit values to runtime profile is broken
>
>
> Key: IMPALA-8236
> URL: https://issues.apache.org/jira/browse/IMPALA-8236
> Project: IMPALA
> Issue Type: Bug
> Components: Backend
>Reporter: Tim Armstrong
>Priority: Major
> Labels: observability
>
> See IMPALA-8235 for context.
> The problem this tracks is that there's no way to add a new value to the
> TUnit enum, which is required in TCounter, without breaking existing readers
> (at least Java readers), which will fail to decode TCounter values with an
> enum value they don't recognise.
> The workaround is to only use the following units in anything that is
> serialised into a TCounter:
> {noformat}
> UNIT,
> UNIT_PER_SECOND,
> CPU_TICKS,
> BYTES
> BYTES_PER_SECOND,
> TIME_NS,
> DOUBLE_VALUE
> {noformat}
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