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From Maximilian Michels <...@apache.org>
Subject Re: [VOTE] Release Apache Flink 1.1.0 (RC1)
Date Tue, 02 Aug 2016 11:37:01 GMT
I agree with Ufuk and Stephan that we could forward most of the
testing if we only included the hash function fix in the new RC. There
are some other minor issues we could merge as well, but they are
involved enough that they would set us back to redoing the testing. So
+1 for a new RC with the hash function fix.

On Tue, Aug 2, 2016 at 12:35 PM, Stephan Ewen <sewen@apache.org> wrote:
> +1 from my side
>
> Create a new RC that differs only in the hash function commit.
> I would support to carry forward the vote thread (extend it for one
> additional day), because virtually all test results should apply to the new
> RC as well.
>
> We certainly need to redo:
>   - signature validation
>   - Build & integration tests (that should catch any potential error caused
> by a change of hash function)
>
> That is pretty lightweight, should be good within a day.
>
>
> On Tue, Aug 2, 2016 at 10:43 AM, Ufuk Celebi <uce@apache.org> wrote:
>
>> Dear community,
>>
>> I would like to vote +1, but during testing I've noted that we should
>> have reverted FLINK-4154 (correction of murmur hash) for this release.
>>
>> We had a wrong murmur hash implementation for 1.0, which was fixed for
>> 1.1. We reverted that fix, because we thought that it broke savepoint
>> compatibility between 1.0 and 1.1. That revert is part of RC1. It
>> turns out though that there are other problems with savepoint
>> compatibility which are independent of the hash function. Therefore I
>> would like to revert it again and create a new RC with only this extra
>> commit and extend the vote for one day.
>>
>> Would you be OK with this? Most testing results should be applicable
>> to RC2, too.
>>
>> I ran the following tests:
>>
>> + Check checksums and signatures
>> + Verify no binaries in source release
>> + Build (clean verify) with default Hadoop version
>> + Build (clean verify) with Hadoop 2.6.1
>> + Checked build for Scala 2.11
>> + Checked all POMs
>> + Read README.md
>> + Examined OUT and LOG files
>> + Checked paths with spaces (found non-blocking issue with YARN CLI)
>> + Checked local, cluster mode, and multi-node cluster
>> + Tested HDFS split assignment
>> + Tested bin/flink command line
>> + Tested recovery (master and worker failure) in standalone mode with
>> RocksDB and HDFS
>> + Tested Scala/SBT giter8 template
>> + Tested Metrics (user defined metrics, multiple JMX reporters, JM
>> metrics, user defined reporter)
>>
>> – Ufuk
>>
>>
>> On Tue, Aug 2, 2016 at 10:13 AM, Till Rohrmann <trohrmann@apache.org>
>> wrote:
>> > I can confirm Aljoscha's findings concerning building Flink with Hadoop
>> > version 2.6.0 using Maven 3.3.9. Aljoscha is right that it is indeed a
>> > Maven 3.3 issue. If you build flink-runtime twice, then everything goes
>> > through because the shaded curator Flink dependency is installed in
>> during
>> > the first run.
>> >
>> > On Tue, Aug 2, 2016 at 5:09 AM, Aljoscha Krettek <aljoscha@apache.org>
>> > wrote:
>> >
>> >> @Ufuk: 3.3.9, that's probably it because that messes with the shading,
>> >> right?
>> >>
>> >> @Stephan: Yes, even did a "rm -r .m2/repository". But the maven version
>> is
>> >> most likely the reason.
>> >>
>> >> On Mon, 1 Aug 2016 at 10:59 Stephan Ewen <sewen@apache.org> wrote:
>> >>
>> >> > @Aljoscha: Have you made sure you have a clean maven cache (remove
the
>> >> > .m2/repository/org/apache/flink folder)?
>> >> >
>> >> > On Mon, Aug 1, 2016 at 5:56 PM, Aljoscha Krettek <aljoscha@apache.org
>> >
>> >> > wrote:
>> >> >
>> >> > > I tried it again now. I did:
>> >> > >
>> >> > > rm -r .m2/repository
>> >> > > mvn clean verify -Dhadoop.version=2.6.0
>> >> > >
>> >> > > failed again. Also with versions 2.6.1 and 2.6.3.
>> >> > >
>> >> > > On Mon, 1 Aug 2016 at 08:23 Maximilian Michels <mxm@apache.org>
>> wrote:
>> >> > >
>> >> > > > This is also a major issue for batch with off-heap memory
and
>> memory
>> >> > > > preallocation turned off:
>> >> > > > https://issues.apache.org/jira/browse/FLINK-4094
>> >> > > > Not hard to fix though as we simply need to reliably clear
the
>> direct
>> >> > > > memory instead of relying on garbage collection. Another
possible
>> fix
>> >> > > > is to maintain memory pools independently of the preallocation
>> mode.
>> >> I
>> >> > > > think this is fine because preallocation:false suggests that
no
>> >> memory
>> >> > > > will be preallocated but not that memory will be freed once
>> acquired.
>> >> > > >
>> >> > >
>> >> >
>> >>
>>

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