HyukjinKwon commented on a change in pull request #25757: [SPARK-29052][DOCS][ML][PYTHON][CORE][R][SQL][SS] Create a Migration Guide tap in Spark documentation URL: https://github.com/apache/spark/pull/25757#discussion_r323238778
########## File path: docs/core-migration-guide.md ########## @@ -0,0 +1,32 @@ +--- +layout: global +title: "Migration Guide: Spark Core" +displayTitle: "Migration Guide: Spark Core" +license: | + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--- + +* Table of contents +{:toc} + +## Upgrading from Core 2.4 to 3.0 + +- In Spark 3.0, deprecated method `TaskContext.isRunningLocally` has been removed. Local execution was removed and it always has returned `false`. + +- In Spark 3.0, deprecated method `shuffleBytesWritten`, `shuffleWriteTime` and `shuffleRecordsWritten` in `ShuffleWriteMetrics` have been removed. Instead, use `bytesWritten`, `writeTime ` and `recordsWritten` respectively. + +- In Spark 3.0, deprecated method `AccumulableInfo.apply` have been removed because creating `AccumulableInfo` is disallowed. + Review comment: Yea, I just quickly skimmed so that I can leave this page non empty. For migration guide, I think we should mention something that's not a corner case and when both previous and new behaviours make sense. My thought was that basically bug fixes or minor behaviour changes shouldn't come here ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
