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Sean Owen commented on SPARK-17930: ----------------------------------- But this code is only ever called once per object. Reuse doesn't help here, and I don't think you can share the serializer across instances. > The SerializerInstance instance used when deserializing a TaskResult is not > reused > ----------------------------------------------------------------------------------- > > Key: SPARK-17930 > URL: https://issues.apache.org/jira/browse/SPARK-17930 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Affects Versions: 1.6.1, 2.0.1 > Reporter: Guoqiang Li > > The following code is called when the DirectTaskResult instance is > deserialized > {noformat} > def value(): T = { > if (valueObjectDeserialized) { > valueObject > } else { > // Each deserialization creates a new instance of SerializerInstance, > which is very time-consuming > val resultSer = SparkEnv.get.serializer.newInstance() > valueObject = resultSer.deserialize(valueBytes) > valueObjectDeserialized = true > valueObject > } > } > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org