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Rohini Palaniswamy commented on PIG-4958: ----------------------------------------- Created TEZ-3385 to have a standard API in Tez for retrieving DAG information. > Tez autoparallelism estimation for order by is higher than mapreduce > -------------------------------------------------------------------- > > Key: PIG-4958 > URL: https://issues.apache.org/jira/browse/PIG-4958 > Project: Pig > Issue Type: Bug > Reporter: Rohini Palaniswamy > Assignee: Rohini Palaniswamy > Fix For: 0.17.0 > > Attachments: PIG-4958-1.patch, PIG-4958-2.patch, > PIG-4958-withoutsecurity.patch > > > The input size is calculated from the size of the samples in memory. Size > in memory is usually 4x or more than the serialized size. Mapreduce estimates > the number of reducers based on serialized size. -- This message was sent by Atlassian JIRA (v6.3.4#6332)