[VOTE] JanusGraph 0.3.0 release

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Jason Plurad

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Jul 31, 2018, 3:40:14 PM7/31/18
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Hello,

We are happy to announce that JanusGraph 0.3.0 is ready for release.

The release artifacts can be found at this location:
        https://github.com/JanusGraph/janusgraph/releases/tag/v0.3.0

A binary distribution is provided for user convenience:
        https://github.com/JanusGraph/janusgraph/releases/download/v0.3.0/janusgraph-0.3.0-hadoop2.zip

The GPG key used to sign the release artifacts is available at:
        https://github.com/JanusGraph/janusgraph/releases/download/v0.3.0/KEYS

The docs can be found here:
        https://github.com/JanusGraph/janusgraph/releases/download/v0.3.0/janusgraph-0.3.0-hadoop2-doc.zip
        (See also documentation preview site)

The release tag in Git can be found here:
        https://github.com/JanusGraph/janusgraph/tree/v0.3.0

The release notes are available here:
        https://github.com/JanusGraph/janusgraph/blob/v0.3.0/docs/changelog.adoc

This [VOTE] will open for the next 3 days --- closing Friday, August 3, 2018 at 3:40 PM EDT.
All are welcome to review and vote on the release, but only votes from TSC members are binding.
My vote is +1.


Thank you,
Jason Plurad

Florian Hockmann

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Aug 1, 2018, 5:57:43 AM8/1/18
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We have been using a SNAPSHOT of 0.3.0 that already includes most of the changes of the final version in production for a few weeks and we didn’t encounter any problems.


Of course, we especially tested the new schema constraints and they worked as expected. GraphSON 3 also works which wasn’t available before.


So, VOTE +1 from our side.

Debasish Kanhar

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Aug 1, 2018, 8:22:36 AM8/1/18
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+1 .

We would really love for 0.3.0 to go into release as soon as possible, as we will need to use the same release from Maven central for our migration to Janus 0.3.0.

Rafael Fernandes

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Aug 1, 2018, 3:50:04 PM8/1/18
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+1

We’ve also been using in prod for some time, all good..

Rafa

Misha Brukman

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Aug 1, 2018, 4:53:45 PM8/1/18
to Jason Plurad, JanusGraph developers
+1, LGTM!

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Jason Plurad

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Aug 2, 2018, 7:52:07 PM8/2/18
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1 day to go to get your review/votes in. Thanks to everybody that has participated so far.

I'll make note here that Alex Patrikalakis identified an issue (and also submitted a PR) during his review of the 0.3.0 release. Thank you for both! I don't believe it qualifies as a stop-ship issue. The fix is simple and only involves configuration file updates, so I don't think we need to respin the 0.3.0 release artifacts and restart the vote. We'll target the fix for the 0.2 stream, which has the same problem, then merge it upstream.

Please let us know if there are any concerns with this approach.



On Wednesday, August 1, 2018 at 4:53:45 PM UTC-4, Misha Brukman wrote:
+1, LGTM!

Jerry He

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Aug 3, 2018, 1:54:54 AM8/3/18
to Jason Plurad, JanusGraph developers
 Downloaded the binary zip. Checked the signature.  Loos good.
 Unzip it.  Looked at the directories and files.  Looks good.
 Ran some simple transactions and queries against HBase 1.2.6 and Solr 6.3.0.  Good.
 Started gremlin-server against the HBase and Solr backend configuration . Ran remote queries.  Good.

Ran SparkComputer with my modified version of read-hbase.properties (pointing to the above HBase instance).

gremlin> graph = GraphFactory.open('conf/hadoop-graph/read-hbase.properties')
==>hadoopgraph[hbaseinputformat->gryooutputformat]
gremlin> g = graph.traversal().withComputer(SparkGraphComputer)
==>graphtraversalsource[hadoopgraph[hbaseinputformat->gryooutputformat], sparkgraphcomputer]
gremlin> g.V().count()
==>12

But I was not able to get the pagerank to work. 
I tried to set  spark.kryo.registrator to different values, but neither worked for me.

spark.serializer=org.apache.spark.serializer.KryoSerializer
#spark.kryo.registrator=org.janusgraph.hadoop.serialize.JanusGraphKryoRegistrator
spark.kryo.registrator=org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoRegistrator

gremlin> g.V().pageRank().valueMap()
22:42:32 WARN  org.apache.spark.storage.BlockManager  - Putting block rdd_2_0 failed due to an exception
22:42:32 WARN  org.apache.spark.storage.BlockManager  - Block rdd_2_0 could not be removed as it was not found on disk or in memory
22:42:32 ERROR org.apache.spark.executor.Executor  - Exception in task 0.0 in stage 1.0 (TID 1)
com.esotericsoftware.kryo.KryoException: java.lang.UnsupportedOperationException
Serialization trace:
readers (org.locationtech.spatial4j.io.SupportedFormats)
formats (org.locationtech.spatial4j.context.jts.JtsSpatialContext)
ctx (org.locationtech.spatial4j.shape.impl.PointImpl)
shape (org.janusgraph.core.attribute.Geoshape)
        at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:144)
...

When I have 
spark.kryo.registrator=org.janusgraph.hadoop.serialize.JanusGraphKryoRegistrator

I got:
gremlin> g.V().pageRank().valueMap()
22:48:18 ERROR org.apache.spark.util.Utils  - Aborting task
java.lang.IllegalArgumentException: Class is not registered: org.janusgraph.core.attribute.Geoshape
Note: To register this class use: kryo.register(org.janusgraph.core.attribute.Geoshape.class);
        at org.apache.tinkerpop.shaded.kryo.Kryo.getRegistration(Kryo.java:484)
        at org.apache.tinkerpop.gremlin.structure.io.gryo.AbstractGryoClassResolver.writeClass(AbstractGryoClassResolver.java:110)
        at org.apache.tinkerpop.shaded.kryo.Kryo.writeClass(Kryo.java:514)
        at org.apache.tinkerpop.shaded.kryo.Kryo.writeClassAndObject(Kryo.java:619)

It worked in JanusGraph 0.2.1 with spark.kryo.registrator=org.janusgraph.hadoop.serialize.JanusGraphKryoRegistrator 

I need to look into it more.

Thanks,

Jerry


Jason Plurad

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Aug 3, 2018, 2:14:18 PM8/3/18
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JanusGraph 0.3.0 with Spark 2.2.0 works in other scenarios where the graph doesn't include a Geoshape property. I'll also note that we opened up this issue during the OLAP docs review for clarifying the serializer properties. Jerry, if you would open a separate issue on running the PageRankVertexProgram with a Geoshape, we will target the fix for 0.3.1.

I'm inclined to continue forward with the release. Please let us know if there are any concerns with this approach.

Jerry He

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Aug 3, 2018, 2:22:54 PM8/3/18
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Jason Plurad

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Aug 4, 2018, 7:27:51 AM8/4/18
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We have 5 +1 votes, however we have only 2 +1 votes from TSC members or committers, which falls short of the 3 required for the release.

Misha Brukman *
Rafael Fernandes
Florian Hockmann
Debasish Kanhar
Jason Plurad *

* denotes committer

I'll extend the vote for an additional 3 days from the original start -- closing Monday, August 6, 2018 at 3:40 PM EDT

If there are any concerns with this approach, please reply on this thread. Thank you.



On Friday, August 3, 2018 at 2:22:54 PM UTC-4, Jerry He wrote:
I created a new issue:  https://github.com/JanusGraph/janusgraph/issues/1205

Thanks,

Jerry

Jerry He

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Aug 6, 2018, 1:43:02 PM8/6/18
to Jason Plurad, JanusGraph developers
+1  on the release.

Thanks,

Jerry

David Pitera

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Aug 6, 2018, 1:43:49 PM8/6/18
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Alexander Patrikalakis

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Aug 6, 2018, 5:53:49 PM8/6/18
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+1 good job on the hard work for release!
+1 on release!

+1, LGTM!

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