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From "Doug Cutting (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AVRO-947) improve performance of resolver cache for multi-threaded applications
Date Fri, 28 Oct 2011 17:01:35 GMT
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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