[
https://issues.apache.org/jira/browse/AVRO-3048?focusedWorklogId=650183&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-650183
]
ASF GitHub Bot logged work on AVRO-3048:
----------------------------------------
Author: ASF GitHub Bot
Created on: 13/Sep/21 18:31
Start Date: 13/Sep/21 18:31
Worklog Time Spent: 10m
Work Description: unchuckable opened a new pull request #1333:
URL: https://github.com/apache/avro/pull/1333
Backport of PR https://github.com/apache/avro/pull/1206 to 1.10 branch. For
details, also see there.
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Issue Time Tracking
-------------------
Worklog Id: (was: 650183)
Remaining Estimate: 0h
Time Spent: 10m
> Using builders leads to performance degradation
> -----------------------------------------------
>
> Key: AVRO-3048
> URL: https://issues.apache.org/jira/browse/AVRO-3048
> Project: Apache Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.9.2, 1.10.1
> Reporter: Peter
> Assignee: Martin Jubelgas
> Priority: Major
> Fix For: 1.11.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When you do a .newBuilder() for avro generated classes, this will call
> org.apache.avro.specific.SpecificData.getForSchema:
>
> public static SpecificData getForSchema(Schema reader) {
> if (reader.getType() == Type.RECORD) {
> final String className = getClassName(reader);
> if (className != null) {
> final Class<?> clazz;
> try
> {
> clazz = Class.forName(className);
> return getForClass(clazz); }
> catch (ClassNotFoundException e)
> { return SpecificData.get();
> }
> }
> }
>
> which seems then to seldom find the value inside the try and a lot of
> ClassNotFoundException is thrown.
> Throwing internal exceptions has great performance penalties and in practice
> users of avro 1.9.x. and 1.10.x in high performance applications are forced
> not to use builders.
>
> Information about same problem is also found on:
> [https://forums.databricks.com/questions/50803/orgapacheavrospecificspecificdatagetforschema-sear.html]
> Problem exists on at least 1.9.2 and 1.10.1 (but not on 1.7.x) in OSGI
> environment
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