flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From greghogan <...@git.apache.org>
Subject [GitHub] flink pull request #2156: [FLINK-4113] [runtime] Always copy first value in ...
Date Mon, 27 Jun 2016 12:18:58 GMT
Github user greghogan commented on a diff in the pull request:

    --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/operators/chaining/ChainedAllReduceDriver.java
    @@ -89,7 +89,7 @@ public void collect(IT record) {
     		try {
     			if (base == null) {
    -				base = objectReuseEnabled ? record : serializer.copy(record);
    +				base = serializer.copy(record);
     			} else {
     				base = objectReuseEnabled ? reducer.reduce(base, record) : serializer.copy(reducer.reduce(base,
    --- End diff --
    We fixed this in FLINK-3340 for non-chained reduce drivers (where the driver chooses the
object to deserialize into) but for chained drivers we cannot prevent one UDF from overwriting
an object from a previous UDF. If you look in {{OverwriteObjects.java}} you will see {{testReduce}}

If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.

View raw message