[
https://issues.apache.org/jira/browse/FLINK-3762?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241684#comment-15241684
]
ASF GitHub Bot commented on FLINK-3762:
---------------------------------------
GitHub user andrewpalumbo opened a pull request:
https://github.com/apache/flink/pull/1891
FLINK-3762: StackOverflowError due to disabled Kryo Reference tracking
cription
As discussed on the dev list,
In `KryoSerializer.java`
Kryo Reference tracking is disabled by default:
```java
kryo.setReferences(false);
```
This can causes StackOverflowError Exceptions when serializing many objects
that may contain recursive objects:
```
java.lang.StackOverflowError
at
com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:48)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at
com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at
com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
at
com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
```
By enabling reference tracking, we can fix this problem.
[1]https://gist.github.com/andrewpalumbo/40c7422a5187a24cd03d7d81feb2a419
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/andrewpalumbo/flink FLINK-3762
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1891.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1891
----
commit 72f5bad9ebb1e657336e2c3e8ea8eb9ee283f693
Author: Andrew Palumbo <apalu...@apache.org>
Date: 2016-04-14T18:25:46Z
FLINK-3762: enable kryo refrence tracking
----
> Kryo StackOverflowError due to disabled Kryo Reference tracking
> ----------------------------------------------------------------
>
> Key: FLINK-3762
> URL: https://issues.apache.org/jira/browse/FLINK-3762
> Project: Flink
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.1
> Reporter: Andrew Palumbo
> Fix For: 1.0.2
>
>
> As discussed on the dev list,
> In {{KryoSerializer.java}}
> Kryo Reference tracking is disabled by default:
> {code}
> kryo.setReferences(false);
> {code}
> This can causes {{StackOverflowError}} Exceptions when serializing many
> objects that may contain recursive objects:
> {code}
> java.lang.StackOverflowError
> at
> com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:48)
> at
> com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
> at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
> at
> com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
> at
> com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
> at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
> at
> com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
> at
> com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
> at com.esotericsoftware.kryo.Kryo.writeObject(Kryo.java:523)
> at
> com.esotericsoftware.kryo.serializers.ObjectField.write(ObjectField.java:61)
> at
> com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:495)
> {code}
> By enabling reference tracking, we can fix this problem.
> [1]https://gist.github.com/andrewpalumbo/40c7422a5187a24cd03d7d81feb2a419
>
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