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Posted to dev@avro.apache.org by "Ilya Kramer (Jira)" <ji...@apache.org> on 2021/07/07 06:53:00 UTC
[jira] [Updated] (AVRO-3172) Alias break when writer schema and
reader schema name differs
[ https://issues.apache.org/jira/browse/AVRO-3172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ilya Kramer updated AVRO-3172:
------------------------------
Description:
In Java, when migrating from one name to another via alias (for example in _schema.old_ a field was named _a_, in _schema.new_ the field is renamed to _b_ with alias to _a_) the alias is not considered if the record name in _schema.old_ differs from the one in _schema.new_.
This is especially painful as nothing else breaks and there's no warning issued about the change of the record name.
This issue was very annoying to isolate(from a big avro schema).
Even if this isn't strictly speaking a bug at least a warning should be issued indicating issues might arise from the record name change.
I could replicate this using a simple test case on all versions of avro from 1.8.0 to 1.10.2
was:
In Java, when migrating from one name to another via alias (for example in _schema.old_ a field was named _a_, in _schema.new_ the field is renamed to _b_ with alias to _a_) the alias is not considered if the record name in _schema.old_ differs from __ _schema.new_.
This is especially painful as nothing else breaks and there's no warning issued about the change of the record name.
This issue was very annoying to isolate(from a big avro schema).
Even if this isn't strictly speaking a bug at least a warning should be issued indicating issues might arise from the record name change.
I could replicate this using a simple test case on all versions of avro from 1.8.0 to 1.10.2
> Alias break when writer schema and reader schema name differs
> -------------------------------------------------------------
>
> Key: AVRO-3172
> URL: https://issues.apache.org/jira/browse/AVRO-3172
> Project: Apache Avro
> Issue Type: Bug
> Reporter: Ilya Kramer
> Priority: Major
>
> In Java, when migrating from one name to another via alias (for example in _schema.old_ a field was named _a_, in _schema.new_ the field is renamed to _b_ with alias to _a_) the alias is not considered if the record name in _schema.old_ differs from the one in _schema.new_.
> This is especially painful as nothing else breaks and there's no warning issued about the change of the record name.
> This issue was very annoying to isolate(from a big avro schema).
> Even if this isn't strictly speaking a bug at least a warning should be issued indicating issues might arise from the record name change.
>
> I could replicate this using a simple test case on all versions of avro from 1.8.0 to 1.10.2
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