Java: Performance Regression and memory pressure with GenericDatumReader
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Key: AVRO-743
URL: https://issues.apache.org/jira/browse/AVRO-743
Project: Avro
Issue Type: Bug
Components: java
Affects Versions: 1.5.0
Reporter: Scott Carey
Priority: Critical
Fix For: 1.5.0
AVRO-650 introduced a large performance regression and memory bloat issue with
GenericDatumReader.
Performance plummets for some Perf.java tests (One test took 1 hour to finish
on my laptop).
Some minor changes I tried result in it passing in shorter time, but with still
an 80% performance degredation.
This is associated with memory bloat related to ThreadLocals.
More details provided in comments.
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