[
https://issues.apache.org/jira/browse/FLINK-8451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374244#comment-16374244
]
ASF GitHub Bot commented on FLINK-8451:
---------------------------------------
Github user tzulitai commented on a diff in the pull request:
https://github.com/apache/flink/pull/5567#discussion_r170231102
--- Diff:
flink-core/src/main/java/org/apache/flink/util/InstantiationUtil.java ---
@@ -121,10 +121,53 @@ public ClassLoaderObjectInputStream(InputStream in,
ClassLoader classLoader) thr
scalaSerializerClassnames.add("org.apache.flink.api.scala.typeutils.EnumValueSerializer");
scalaSerializerClassnames.add("org.apache.flink.api.scala.typeutils.OptionSerializer");
scalaSerializerClassnames.add("org.apache.flink.api.scala.typeutils.TrySerializer");
-
scalaSerializerClassnames.add("org.apache.flink.api.scala.typeutils.EitherSerializer");
scalaSerializerClassnames.add("org.apache.flink.api.scala.typeutils.UnitSerializer");
}
+ /**
+ * The serialVersionUID might change between Scala versions and since
those classes are
+ * part of the tuple serializer config snapshots we need to ignore them.
+ *
+ * See also FLINK-8451.
+ */
+ private static Set<String> scalaTypes = new HashSet<>();
+ static {
+ scalaTypes.add("scala.Tuple1");
+ scalaTypes.add("scala.Tuple2");
+ scalaTypes.add("scala.Tuple3");
+ scalaTypes.add("scala.Tuple4");
+ scalaTypes.add("scala.Tuple5");
+ scalaTypes.add("scala.Tuple6");
+ scalaTypes.add("scala.Tuple7");
+ scalaTypes.add("scala.Tuple8");
+ scalaTypes.add("scala.Tuple9");
+ scalaTypes.add("scala.Tuple10");
+ scalaTypes.add("scala.Tuple11");
+ scalaTypes.add("scala.Tuple12");
+ scalaTypes.add("scala.Tuple13");
+ scalaTypes.add("scala.Tuple14");
+ scalaTypes.add("scala.Tuple15");
+ scalaTypes.add("scala.Tuple16");
+ scalaTypes.add("scala.Tuple17");
+ scalaTypes.add("scala.Tuple18");
+ scalaTypes.add("scala.Tuple19");
+ scalaTypes.add("scala.Tuple20");
+ scalaTypes.add("scala.Tuple21");
+ scalaTypes.add("scala.Tuple22");
+ scalaTypes.add("scala.Tuple1$mcJ$sp");
+ scalaTypes.add("scala.Tuple1$mcI$sp");
--- End diff --
Could you briefly explain what these are?
> CaseClassSerializer is not backwards compatible in 1.4
> ------------------------------------------------------
>
> Key: FLINK-8451
> URL: https://issues.apache.org/jira/browse/FLINK-8451
> Project: Flink
> Issue Type: Bug
> Components: Type Serialization System
> Affects Versions: 1.4.0, 1.5.0
> Reporter: Timo Walther
> Assignee: Timo Walther
> Priority: Blocker
> Fix For: 1.5.0, 1.4.2
>
>
> There seems to be problems with the updated Scala version and the
> CaseClassSerializer that make it impossible to restore from a Flink 1.3
> savepoint.
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3CCACk7FThV5itjSj_1fG9oaWS86z8WTKWs7abHvok6FnHzq9XT-A%40mail.gmail.com%3E
> http://mail-archives.apache.org/mod_mbox/flink-user/201801.mbox/%3C7CABB00B-D52F-4878-B04F-201415CEB658%40mediamath.com%3E
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
