[VOTE] Release Apache Flink 1.2.0 (RC1)

[Robert Metzger]

Dear Flink community,

Please vote on releasing the following candidate as Apache Flink version
1.2.0.

The commit to be voted on:
1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208
<http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)

Branch:
release-1.2.0-rc1
(https://git1-us-west.apache.org/repos/asf/flink/repo?p=
flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)

The release artifacts to be voted on can be found at:
*http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
<http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*

The release artifacts are signed with the key with fingerprint D9839159:
http://www.apache.org/dist/flink/KEYS

The staging repository for this release can be found at:
https://repository.apache.org/content/repositories/orgapacheflink-1112

-------------------------------------------------------------

The vote ends in three days (3 pm CET | Friday, January 27, 2017)

Please test the release rather now than on Friday morning, to be able to
cancel it as early as possible.
For making the testing easier, I've created this document to track what has
already been tested and what needs to be tested:
https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZUrK_n-DGIBLjFKyCrTAs/edit?usp=sharing
Feel free to add more tests or change existing ones.

[ ] +1 Release this package as Apache Flink 1.2.0
[ ] -1 Do not release this package, because ...

[Stefan Richter]

Hi Robert,

I found an potientally blocking issue in RC1 that I would like to bring up for debate. In [FLINK-5602], Ufuk found a NPE that happened during the first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked into this and found that the cause of this problem is the absense of namespace serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all serializers part of the checkpoint and therefore a precondition to checkpointing fails if a checkpoint runs before the user code is delivering the namespace serializer. This is a race condition that (depending on the user code) could fail almost deterministcally in some situations (e.g. user is registering the state rather late). The consequence is that checkpointing (and the whole job) fails in this scenario and potentially prevents user from upgrading to 1.2. I have a open PR #3200 that is fixing this problem.

Best,
Stefan

> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>
> Dear Flink community,
>
> Please vote on releasing the following candidate as Apache Flink version
> 1.2.0.
>
> The commit to be voted on:
> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208
> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>
> Branch:
> release-1.2.0-rc1
> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>
> The release artifacts to be voted on can be found at:
> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>
> The release artifacts are signed with the key with fingerprint D9839159:
> http://www.apache.org/dist/flink/KEYS
>
> The staging repository for this release can be found at:
> https://repository.apache.org/content/repositories/orgapacheflink-1112
>
> -------------------------------------------------------------
>
> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>
> Please test the release rather now than on Friday morning, to be able to
> cancel it as early as possible.
> For making the testing easier, I've created this document to track what has
> already been tested and what needs to be tested:
> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZUrK_n-DGIBLjFKyCrTAs/edit?usp=sharing
> Feel free to add more tests or change existing ones.
>
> [ ] +1 Release this package as Apache Flink 1.2.0
> [ ] -1 Do not release this package, because ...

[Chesnay Schepler-3]

Hello,

FLINK-5612 might be a blocker as well; basically if you use the
GlobFilePathFilter in a job, chances are it will fail.

Also, the lastCheckpointSize metric that we collect for each task was
broken when the key-groups were introduced.

Regards,
Chesnay

On 25.01.2017 10:52, Stefan Richter wrote:

> Hi Robert,
>
> I found an potientally blocking issue in RC1 that I would like to bring up for debate. In [FLINK-5602], Ufuk found a NPE that happened during the first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked into this and found that the cause of this problem is the absense of namespace serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all serializers part of the checkpoint and therefore a precondition to checkpointing fails if a checkpoint runs before the user code is delivering the namespace serializer. This is a race condition that (depending on the user code) could fail almost deterministcally in some situations (e.g. user is registering the state rather late). The consequence is that checkpointing (and the whole job) fails in this scenario and potentially prevents user from upgrading to 1.2. I have a open PR #3200 that is fixing this problem.
>
> Best,
> Stefan
>
>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>
>> Dear Flink community,
>>
>> Please vote on releasing the following candidate as Apache Flink version
>> 1.2.0.
>>
>> The commit to be voted on:
>> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208
>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>
>> Branch:
>> release-1.2.0-rc1
>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>
>> The release artifacts to be voted on can be found at:
>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>
>> The release artifacts are signed with the key with fingerprint D9839159:
>> http://www.apache.org/dist/flink/KEYS
>>
>> The staging repository for this release can be found at:
>> https://repository.apache.org/content/repositories/orgapacheflink-1112
>>
>> -------------------------------------------------------------
>>
>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>
>> Please test the release rather now than on Friday morning, to be able to
>> cancel it as early as possible.
>> For making the testing easier, I've created this document to track what has
>> already been tested and what needs to be tested:
>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZUrK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>> Feel free to add more tests or change existing ones.
>>
>> [ ] +1 Release this package as Apache Flink 1.2.0
>> [ ] -1 Do not release this package, because ...
>

[Stephan Ewen]

Did a License cross-check:

All Maven Dependencies are okay. Added a small note on the RabbitMQ
dependency's MPL 1.1 implications

The Web UI added three new dependencies which are source-bundled since the
last release
  - One was added to the license file
  - One is ASL 2.0 (no license update needed)

  => One is MIT and reference in the License is missing

I think we have a release blocker here :-(





On Wed, Jan 25, 2017 at 11:12 AM, Chesnay Schepler <[hidden email]>
wrote:

> Hello,
>
> FLINK-5612 might be a blocker as well; basically if you use the
> GlobFilePathFilter in a job, chances are it will fail.
>
> Also, the lastCheckpointSize metric that we collect for each task was
> broken when the key-groups were introduced.
>
> Regards,
> Chesnay
>
>
> On 25.01.2017 10:52, Stefan Richter wrote:
>
>> Hi Robert,
>>
>> I found an potientally blocking issue in RC1 that I would like to bring
>> up for debate. In [FLINK-5602], Ufuk found a NPE that happened during the
>> first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked into
>> this and found that the cause of this problem is the absense of namespace
>> serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all
>> serializers part of the checkpoint and therefore a precondition to
>> checkpointing fails if a checkpoint runs before the user code is delivering
>> the namespace serializer. This is a race condition that (depending on the
>> user code) could fail almost deterministcally in some situations (e.g. user
>> is registering the state rather late). The consequence is that
>> checkpointing (and the whole job) fails in this scenario and potentially
>> prevents user from upgrading to 1.2. I have a open PR #3200 that is fixing
>> this problem.
>>
>> Best,
>> Stefan
>>
>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>>
>>> Dear Flink community,
>>>
>>> Please vote on releasing the following candidate as Apache Flink version
>>> 1.2.0.
>>>
>>> The commit to be voted on:
>>> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208
>>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>>
>>> Branch:
>>> release-1.2.0-rc1
>>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>>
>>> The release artifacts to be voted on can be found at:
>>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>>
>>> The release artifacts are signed with the key with fingerprint D9839159:
>>> http://www.apache.org/dist/flink/KEYS
>>>
>>> The staging repository for this release can be found at:
>>> https://repository.apache.org/content/repositories/orgapacheflink-1112
>>>
>>> -------------------------------------------------------------
>>>
>>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>>
>>> Please test the release rather now than on Friday morning, to be able to
>>> cancel it as early as possible.
>>> For making the testing easier, I've created this document to track what
>>> has
>>> already been tested and what needs to be tested:
>>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZU
>>> rK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>>> Feel free to add more tests or change existing ones.
>>>
>>> [ ] +1 Release this package as Apache Flink 1.2.0
>>> [ ] -1 Do not release this package, because ...
>>>
>>
>>
>

[Chesnay Schepler-3]

Which dependency is MIT?

On 25.01.2017 13:24, Stephan Ewen wrote:

> Did a License cross-check:
>
> All Maven Dependencies are okay. Added a small note on the RabbitMQ
> dependency's MPL 1.1 implications
>
> The Web UI added three new dependencies which are source-bundled since the
> last release
>    - One was added to the license file
>    - One is ASL 2.0 (no license update needed)
>
>    => One is MIT and reference in the License is missing
>
> I think we have a release blocker here :-(
>
>
>
>
>
> On Wed, Jan 25, 2017 at 11:12 AM, Chesnay Schepler <[hidden email]>
> wrote:
>
>> Hello,
>>
>> FLINK-5612 might be a blocker as well; basically if you use the
>> GlobFilePathFilter in a job, chances are it will fail.
>>
>> Also, the lastCheckpointSize metric that we collect for each task was
>> broken when the key-groups were introduced.
>>
>> Regards,
>> Chesnay
>>
>>
>> On 25.01.2017 10:52, Stefan Richter wrote:
>>
>>> Hi Robert,
>>>
>>> I found an potientally blocking issue in RC1 that I would like to bring
>>> up for debate. In [FLINK-5602], Ufuk found a NPE that happened during the
>>> first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked into
>>> this and found that the cause of this problem is the absense of namespace
>>> serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all
>>> serializers part of the checkpoint and therefore a precondition to
>>> checkpointing fails if a checkpoint runs before the user code is delivering
>>> the namespace serializer. This is a race condition that (depending on the
>>> user code) could fail almost deterministcally in some situations (e.g. user
>>> is registering the state rather late). The consequence is that
>>> checkpointing (and the whole job) fails in this scenario and potentially
>>> prevents user from upgrading to 1.2. I have a open PR #3200 that is fixing
>>> this problem.
>>>
>>> Best,
>>> Stefan
>>>
>>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>>> Dear Flink community,
>>>>
>>>> Please vote on releasing the following candidate as Apache Flink version
>>>> 1.2.0.
>>>>
>>>> The commit to be voted on:
>>>> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208
>>>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>>>
>>>> Branch:
>>>> release-1.2.0-rc1
>>>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>>>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>>>
>>>> The release artifacts to be voted on can be found at:
>>>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>>>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>>>
>>>> The release artifacts are signed with the key with fingerprint D9839159:
>>>> http://www.apache.org/dist/flink/KEYS
>>>>
>>>> The staging repository for this release can be found at:
>>>> https://repository.apache.org/content/repositories/orgapacheflink-1112
>>>>
>>>> -------------------------------------------------------------
>>>>
>>>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>>>
>>>> Please test the release rather now than on Friday morning, to be able to
>>>> cancel it as early as possible.
>>>> For making the testing easier, I've created this document to track what
>>>> has
>>>> already been tested and what needs to be tested:
>>>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZU
>>>> rK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>>>> Feel free to add more tests or change existing ones.
>>>>
>>>> [ ] +1 Release this package as Apache Flink 1.2.0
>>>> [ ] -1 Do not release this package, because ...
>>>>
>>>

[Stephan Ewen]

The angular-drag-and-drop-list

https://github.com/apache/flink/commit/34e106f63c9dcd2673d66b47fda1555b7dced770



On Wed, Jan 25, 2017 at 1:48 PM, Chesnay Schepler <[hidden email]>
wrote:

> Which dependency is MIT?
>
>
> On 25.01.2017 13:24, Stephan Ewen wrote:
>
>> Did a License cross-check:
>>
>> All Maven Dependencies are okay. Added a small note on the RabbitMQ
>> dependency's MPL 1.1 implications
>>
>> The Web UI added three new dependencies which are source-bundled since the
>> last release
>>    - One was added to the license file
>>    - One is ASL 2.0 (no license update needed)
>>
>>    => One is MIT and reference in the License is missing
>>
>> I think we have a release blocker here :-(
>>
>>
>>
>>
>>
>> On Wed, Jan 25, 2017 at 11:12 AM, Chesnay Schepler <[hidden email]>
>> wrote:
>>
>> Hello,
>>>
>>> FLINK-5612 might be a blocker as well; basically if you use the
>>> GlobFilePathFilter in a job, chances are it will fail.
>>>
>>> Also, the lastCheckpointSize metric that we collect for each task was
>>> broken when the key-groups were introduced.
>>>
>>> Regards,
>>> Chesnay
>>>
>>>
>>> On 25.01.2017 10:52, Stefan Richter wrote:
>>>
>>> Hi Robert,
>>>>
>>>> I found an potientally blocking issue in RC1 that I would like to bring
>>>> up for debate. In [FLINK-5602], Ufuk found a NPE that happened during
>>>> the
>>>> first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked
>>>> into
>>>> this and found that the cause of this problem is the absense of
>>>> namespace
>>>> serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all
>>>> serializers part of the checkpoint and therefore a precondition to
>>>> checkpointing fails if a checkpoint runs before the user code is
>>>> delivering
>>>> the namespace serializer. This is a race condition that (depending on
>>>> the
>>>> user code) could fail almost deterministcally in some situations (e.g.
>>>> user
>>>> is registering the state rather late). The consequence is that
>>>> checkpointing (and the whole job) fails in this scenario and potentially
>>>> prevents user from upgrading to 1.2. I have a open PR #3200 that is
>>>> fixing
>>>> this problem.
>>>>
>>>> Best,
>>>> Stefan
>>>>
>>>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>>>
>>>>> Dear Flink community,
>>>>>
>>>>> Please vote on releasing the following candidate as Apache Flink
>>>>> version
>>>>> 1.2.0.
>>>>>
>>>>> The commit to be voted on:
>>>>> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca12
>>>>> 08
>>>>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>>>>
>>>>> Branch:
>>>>> release-1.2.0-rc1
>>>>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>>>>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>>>>
>>>>> The release artifacts to be voted on can be found at:
>>>>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>>>>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>>>>
>>>>> The release artifacts are signed with the key with fingerprint
>>>>> D9839159:
>>>>> http://www.apache.org/dist/flink/KEYS
>>>>>
>>>>> The staging repository for this release can be found at:
>>>>> https://repository.apache.org/content/repositories/orgapacheflink-1112
>>>>>
>>>>> -------------------------------------------------------------
>>>>>
>>>>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>>>>
>>>>> Please test the release rather now than on Friday morning, to be able
>>>>> to
>>>>> cancel it as early as possible.
>>>>> For making the testing easier, I've created this document to track what
>>>>> has
>>>>> already been tested and what needs to be tested:
>>>>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZU
>>>>> rK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>>>>> Feel free to add more tests or change existing ones.
>>>>>
>>>>> [ ] +1 Release this package as Apache Flink 1.2.0
>>>>> [ ] -1 Do not release this package, because ...
>>>>>
>>>>>
>>>>
>

[Chesnay Schepler-3]

As far as i know this is only used on the metrics page, so we could
remove it temporarily until we found a replacement.
This wouldn't remove functionality that existed before 1.2.

On 25.01.2017 13:50, Stephan Ewen wrote:

> The angular-drag-and-drop-list
>
> https://github.com/apache/flink/commit/34e106f63c9dcd2673d66b47fda1555b7dced770
>
>
>
> On Wed, Jan 25, 2017 at 1:48 PM, Chesnay Schepler <[hidden email]>
> wrote:
>
>> Which dependency is MIT?
>>
>>
>> On 25.01.2017 13:24, Stephan Ewen wrote:
>>
>>> Did a License cross-check:
>>>
>>> All Maven Dependencies are okay. Added a small note on the RabbitMQ
>>> dependency's MPL 1.1 implications
>>>
>>> The Web UI added three new dependencies which are source-bundled since the
>>> last release
>>>     - One was added to the license file
>>>     - One is ASL 2.0 (no license update needed)
>>>
>>>     => One is MIT and reference in the License is missing
>>>
>>> I think we have a release blocker here :-(
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Jan 25, 2017 at 11:12 AM, Chesnay Schepler <[hidden email]>
>>> wrote:
>>>
>>> Hello,
>>>> FLINK-5612 might be a blocker as well; basically if you use the
>>>> GlobFilePathFilter in a job, chances are it will fail.
>>>>
>>>> Also, the lastCheckpointSize metric that we collect for each task was
>>>> broken when the key-groups were introduced.
>>>>
>>>> Regards,
>>>> Chesnay
>>>>
>>>>
>>>> On 25.01.2017 10:52, Stefan Richter wrote:
>>>>
>>>> Hi Robert,
>>>>> I found an potientally blocking issue in RC1 that I would like to bring
>>>>> up for debate. In [FLINK-5602], Ufuk found a NPE that happened during
>>>>> the
>>>>> first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked
>>>>> into
>>>>> this and found that the cause of this problem is the absense of
>>>>> namespace
>>>>> serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all
>>>>> serializers part of the checkpoint and therefore a precondition to
>>>>> checkpointing fails if a checkpoint runs before the user code is
>>>>> delivering
>>>>> the namespace serializer. This is a race condition that (depending on
>>>>> the
>>>>> user code) could fail almost deterministcally in some situations (e.g.
>>>>> user
>>>>> is registering the state rather late). The consequence is that
>>>>> checkpointing (and the whole job) fails in this scenario and potentially
>>>>> prevents user from upgrading to 1.2. I have a open PR #3200 that is
>>>>> fixing
>>>>> this problem.
>>>>>
>>>>> Best,
>>>>> Stefan
>>>>>
>>>>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>>>>
>>>>>> Dear Flink community,
>>>>>>
>>>>>> Please vote on releasing the following candidate as Apache Flink
>>>>>> version
>>>>>> 1.2.0.
>>>>>>
>>>>>> The commit to be voted on:
>>>>>> 1bca1208 (*http://git-wip-us.apache.org/repos/asf/flink/commit/1bca12
>>>>>> 08
>>>>>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>>>>>
>>>>>> Branch:
>>>>>> release-1.2.0-rc1
>>>>>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>>>>>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>>>>>
>>>>>> The release artifacts to be voted on can be found at:
>>>>>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>>>>>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>>>>>
>>>>>> The release artifacts are signed with the key with fingerprint
>>>>>> D9839159:
>>>>>> http://www.apache.org/dist/flink/KEYS
>>>>>>
>>>>>> The staging repository for this release can be found at:
>>>>>> https://repository.apache.org/content/repositories/orgapacheflink-1112
>>>>>>
>>>>>> -------------------------------------------------------------
>>>>>>
>>>>>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>>>>>
>>>>>> Please test the release rather now than on Friday morning, to be able
>>>>>> to
>>>>>> cancel it as early as possible.
>>>>>> For making the testing easier, I've created this document to track what
>>>>>> has
>>>>>> already been tested and what needs to be tested:
>>>>>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZU
>>>>>> rK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>>>>>> Feel free to add more tests or change existing ones.
>>>>>>
>>>>>> [ ] +1 Release this package as Apache Flink 1.2.0
>>>>>> [ ] -1 Do not release this package, because ...
>>>>>>
>>>>>>

[Stephan Ewen]

@chesnay - we can keep the library, we just needed to update the license
file and do a new release candidate.

On Wed, Jan 25, 2017 at 1:59 PM, Chesnay Schepler <[hidden email]>
wrote:

> As far as i know this is only used on the metrics page, so we could remove
> it temporarily until we found a replacement.
> This wouldn't remove functionality that existed before 1.2.
>
>
> On 25.01.2017 13:50, Stephan Ewen wrote:
>
>> The angular-drag-and-drop-list
>>
>> https://github.com/apache/flink/commit/34e106f63c9dcd2673d66
>> b47fda1555b7dced770
>>
>>
>>
>> On Wed, Jan 25, 2017 at 1:48 PM, Chesnay Schepler <[hidden email]>
>> wrote:
>>
>> Which dependency is MIT?
>>>
>>>
>>> On 25.01.2017 13:24, Stephan Ewen wrote:
>>>
>>> Did a License cross-check:
>>>>
>>>> All Maven Dependencies are okay. Added a small note on the RabbitMQ
>>>> dependency's MPL 1.1 implications
>>>>
>>>> The Web UI added three new dependencies which are source-bundled since
>>>> the
>>>> last release
>>>>     - One was added to the license file
>>>>     - One is ASL 2.0 (no license update needed)
>>>>
>>>>     => One is MIT and reference in the License is missing
>>>>
>>>> I think we have a release blocker here :-(
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Wed, Jan 25, 2017 at 11:12 AM, Chesnay Schepler <[hidden email]>
>>>> wrote:
>>>>
>>>> Hello,
>>>>
>>>>> FLINK-5612 might be a blocker as well; basically if you use the
>>>>> GlobFilePathFilter in a job, chances are it will fail.
>>>>>
>>>>> Also, the lastCheckpointSize metric that we collect for each task was
>>>>> broken when the key-groups were introduced.
>>>>>
>>>>> Regards,
>>>>> Chesnay
>>>>>
>>>>>
>>>>> On 25.01.2017 10:52, Stefan Richter wrote:
>>>>>
>>>>> Hi Robert,
>>>>>
>>>>>> I found an potientally blocking issue in RC1 that I would like to
>>>>>> bring
>>>>>> up for debate. In [FLINK-5602], Ufuk found a NPE that happened during
>>>>>> the
>>>>>> first checkpoint after migrating a job from Flink 1.1 to 1.2. I looked
>>>>>> into
>>>>>> this and found that the cause of this problem is the absense of
>>>>>> namespace
>>>>>> serializers in Flink 1.1 checkpoints. Flink 1.2 always makes all
>>>>>> serializers part of the checkpoint and therefore a precondition to
>>>>>> checkpointing fails if a checkpoint runs before the user code is
>>>>>> delivering
>>>>>> the namespace serializer. This is a race condition that (depending on
>>>>>> the
>>>>>> user code) could fail almost deterministcally in some situations (e.g.
>>>>>> user
>>>>>> is registering the state rather late). The consequence is that
>>>>>> checkpointing (and the whole job) fails in this scenario and
>>>>>> potentially
>>>>>> prevents user from upgrading to 1.2. I have a open PR #3200 that is
>>>>>> fixing
>>>>>> this problem.
>>>>>>
>>>>>> Best,
>>>>>> Stefan
>>>>>>
>>>>>> Am 24.01.2017 um 15:03 schrieb Robert Metzger <[hidden email]>:
>>>>>>
>>>>>> Dear Flink community,
>>>>>>>
>>>>>>> Please vote on releasing the following candidate as Apache Flink
>>>>>>> version
>>>>>>> 1.2.0.
>>>>>>>
>>>>>>> The commit to be voted on:
>>>>>>> 1bca1208 (*http://git-wip-us.apache.org
>>>>>>> /repos/asf/flink/commit/1bca12
>>>>>>> 08
>>>>>>> <http://git-wip-us.apache.org/repos/asf/flink/commit/1bca1208>*)
>>>>>>>
>>>>>>> Branch:
>>>>>>> release-1.2.0-rc1
>>>>>>> (https://git1-us-west.apache.org/repos/asf/flink/repo?p=
>>>>>>> flink.git;a=shortlog;h=refs/heads/release-1.2.0-rc1)
>>>>>>>
>>>>>>> The release artifacts to be voted on can be found at:
>>>>>>> *http://people.apache.org/~rmetzger/flink-1.2.0-rc1/
>>>>>>> <http://people.apache.org/~rmetzger/flink-1.2.0-rc1/>*
>>>>>>>
>>>>>>> The release artifacts are signed with the key with fingerprint
>>>>>>> D9839159:
>>>>>>> http://www.apache.org/dist/flink/KEYS
>>>>>>>
>>>>>>> The staging repository for this release can be found at:
>>>>>>> https://repository.apache.org/content/repositories/orgapache
>>>>>>> flink-1112
>>>>>>>
>>>>>>> -------------------------------------------------------------
>>>>>>>
>>>>>>> The vote ends in three days (3 pm CET | Friday, January 27, 2017)
>>>>>>>
>>>>>>> Please test the release rather now than on Friday morning, to be able
>>>>>>> to
>>>>>>> cancel it as early as possible.
>>>>>>> For making the testing easier, I've created this document to track
>>>>>>> what
>>>>>>> has
>>>>>>> already been tested and what needs to be tested:
>>>>>>> https://docs.google.com/document/d/1MX-8l9RrLly3UmZMODHBnuZU
>>>>>>> rK_n-DGIBLjFKyCrTAs/edit?usp=sharing
>>>>>>> Feel free to add more tests or change existing ones.
>>>>>>>
>>>>>>> [ ] +1 Release this package as Apache Flink 1.2.0
>>>>>>> [ ] -1 Do not release this package, because ...
>>>>>>>
>>>>>>>
>>>>>>>
>