improve performance of resolver cache for multi-threaded applications
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Key: AVRO-947
URL: https://issues.apache.org/jira/browse/AVRO-947
Project: Avro
Issue Type: Improvement
Components: java
Reporter: Doug Cutting
The DatumReader API is meant to be thread-safe, in that many threads should be
able to simultaneously use a single DatumReader instance. When we first
switched GenericDatumReader to use a resolver thread-safety was broken.
AVRO-650 repaired this with a thread-local resolver cache, but performance
suffered. AVRO-743 improved performance for single-threaded applications, but
multi-threaded performance is still poor.
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