Guoqiang Li created SPARK-17930: ----------------------------------- Summary: 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: 2.0.1, 1.6.1 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