Re: [Gluster-devel] [Gluster-Maintainers] NetBSD aborted runs

[Pranith Kumar Karampuri]

I am seeing a pause when the .t runs that seem to last close to how much
ever time we put in EXPECT_WITHIN

[2016-09-01 03:24:21.852744] I
[common.c:1134:pl_does_monkey_want_stuck_lock] 0-patchy-locks: stuck lock
[2016-09-01 03:24:21.852775] W [inodelk.c:659:pl_inode_setlk]
0-patchy-locks: MONKEY LOCKING (forcing stuck lock)! at 2016-09-01 03:24:21
[2016-09-01 03:24:21.852792] I [server-rpc-fops.c:317:server_finodelk_cbk]
0-patchy-server: replied
[2016-09-01 03:24:21.861937] I [server-rpc-fops.c:5682:server3_3_inodelk]
0-patchy-server: inbound
[2016-09-01 03:24:21.862318] I [server-rpc-fops.c:278:server_inodelk_cbk]
0-patchy-server: replied
[2016-09-01 03:24:21.862627] I [server-rpc-fops.c:5682:server3_3_inodelk]
0-patchy-server: inbound << No I/O after this.
[2016-09-01 03:27:19.6N]:++ G_LOG:tests/features/lock_revocation.t:
TEST: 52 append_to_file /mnt/glusterfs/1/testfile ++
[2016-09-01 03:27:19.871044] I [server-rpc-fops.c:5772:server3_3_finodelk]
0-patchy-server: inbound
[2016-09-01 03:27:19.871280] I [clear.c:219:clrlk_clear_inodelk]
0-patchy-locks: 2
[2016-09-01 03:27:19.871307] I [clear.c:273:clrlk_clear_inodelk]
0-patchy-locks: released_granted
[2016-09-01 03:27:19.871330] I [server-rpc-fops.c:278:server_inodelk_cbk]
0-patchy-server: replied
[2016-09-01 03:27:19.871389] W [inodelk.c:228:__inodelk_prune_stale]
0-patchy-locks: Lock revocation [reason: age; gfid:
3ccca736-ba89-4f8c-ba17-f6cdbcd0e3c3; domain: patchy-replicate-0; age: 178
sec] - Inode lock revoked:  0 granted & 1 blocked locks cleared

We can prevent the hang with adding $CLI volume stop $V0, but the test
would fail. When that happens, the following error is printed on the
console from perfused

perfused: perfuse_node_inactive: perfuse_node_fsync failed error = 57:
Resource temporarily unavailable <<--- I wonder if this comes because
INODELK fop fails with EAGAIN.

I am also seeing a weird behaviour where  it says it is releasing granted
locks but prints that it released 1 blocked lock.

+Manu
I think there are 2 things going on here. 1) There is a hang, I am still
guessing it is gluster issue until proven otherwise.
2) I got to figure out why the counters are showing wrong information from
the information printed in the logs. I kept going through the code, it
seems fine. It should have printed that it released 1 granted lock & 0
blocked locks. But it prints it in reverse.

If you do git diff on nbslave72.cloud.gluster.org, you can see the changes
I made. Could you please help?


On Sun, Aug 28, 2016 at 7:36 AM, Atin Mukherjee  wrote:

> This is still bothering us a lot and looks like there is a genuine issue
> in the code which is making the the process to be hung/deadlocked?
>
> Raghavendra T - any more findings?
>
>
> On Friday 19 August 2016, Atin Mukherjee  wrote:
>
>> https://bugzilla.redhat.com/show_bug.cgi?id=1368421
>>
>> NetBSD regressions are getting aborted very frequently. Apart from the
>> infra issue related to connectivity (Nigel has started looking into it),
>> lock_revocation.t is getting hung in such instances which is causing run to
>> be aborted after 300 minutes. This has already started impacting the
>> patches to get in which eventually impacts the upcoming release cycles.
>>
>> I'd request the feature owner/maintainer to have a look at it asap.
>>
>> --Atin
>>
>
>
> --
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>
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Re: [Gluster-devel] 3.9. feature freeze status check

[Michael Adam]

On 2016-08-26 at 21:38 +0530, Pranith Kumar Karampuri wrote:
> hi,
>   Now that we are almost near the feature freeze date (31st of Aug),
> want to get a sense if any of the status of the features.
> 
> Please respond with:
> 1) Feature already merged
> 2) Undergoing review will make it by 31st Aug
> 3) Undergoing review, but may not make it by 31st Aug
> 4) Feature won't make it for 3.9.
> 
> I added the features that were not planned(i.e. not in the 3.9 roadmap
> page) but made it to the release and not planned but may make it to release
> at the end of this mail.
> If you added a feature on master that will be released as part of 3.9.0 but
> forgot to add it to roadmap page, please let me know I will add it.
> 
> Here are the features planned as per the roadmap:
>
> ...
> 
> 8) Integrate with external resource management software
> Feature owners: Kaleb Keithley, Jose Rivera

I still don't understand what there really is to do inside
gluster. My understanding is that you take (e.g.) storhaug
(https://github.com/linux-ha-storage/storhaug) and start
using it.

Cheers - Michael




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[Gluster-devel] Status of block and object storage on gluster(integration with containers as well)

[Pranith Kumar Karampuri]

hi,
 I will be sending status of this work every week. This is first
mail of this work.
We are enhancing these interfaces primarily for container storage
 - From gluster a container will be able to export a file as virtual
block and will be used as private storage for that container, and no other
container will be able to use the same virtual block as long as this
container is alive.

Work already done in this area:
  - Prasanna has been able to do the PoC using tcmu in this area and
all the efforts have been documented as blog posts:
 1) Non shared persistent storage for containers:
https://pkalever.wordpress.com/2016/06/23/gluster-solution-for-non-shared-
persistent-storage-in-docker-container/
  2) With kubernetes: https://pkalever.wordpress.
com/2016/06/29/non-shared-persistent-gluster-storage-with-kubernetes/
  3) Read-write-once persistent storage for openshift origin
using gluster: https://pkalever.wordpress.com/2016/08/16/read-write-
once-persistent-storage-for-openshift-origin-using-gluster/

   - Andy Grover provided the resize lun capability in tcmu so that the
persistent storage can be expanded.

Work to be done in the coming weeks:
   - I will be sending initial cut of the design for snapshotting the
private storage by doing file snapshots in gluster.
   - I will be sending out initial cut of the subdirectory mounts
feature with tenant based access this week.
   - Prasanna and I are working on limiting access of one private
storage by only one container. One way we thought of is to do internal
locking on the file so that other accesses will get errors. But we are
still looking to find other solutions.

Object storage for containers:
Gluster already has swift integration using gluster-swift. We are
leveraging this work to provide object storage for containers using gluster.

Work done till now:
   - Prashant Pai worked on making swift3 middleware compatible with
swauth
   - Document how S3 access can be done using gluster @
http://review.gluster.org/#/c/13729/

Work to be done in the coming weeks:
- gluster-swift integration with gluster management for 3.9
- Prashant is looking to containerize swift process
-- 
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Re: [Gluster-devel] CFP for Gluster Developer Summit

[M S Vishwanath Bhat]

Hi,

I would like to propose a lightning talk/ignite session.

Running distaf/glusto tests in CentOS CI environment.

I would like like to talk about the plans to make distaf/glusto run on
CentOS CI, current status and the work pending there. If I could send
pending patches before the summit, I would like to tell about how it is
done and ask for any suggestions for improvement :)


Best Regards,
Vishwanath




On 31 August 2016 at 17:51, Nigel Babu  wrote:

> I have one more talk to propose:
>
> Deterministic Releases and How to Get There
> Our release process needs to less about communication and more about "Are
> we confident this release is good". The path to get there is long and
> involves a lot of work. I'd like to talk about my rough ideas, get
> feedback, and come up with a solid plan to make this happen.
>
> On Sat, Aug 13, 2016 at 1:18 AM, Vijay Bellur  wrote:
>
>> Hey All,
>>
>> Gluster Developer Summit 2016 is fast approaching [1] on us. We are
>> looking to have talks and discussions related to the following themes in
>> the summit:
>>
>> 1. Gluster.Next - focusing on features shaping the future of Gluster
>>
>> 2. Experience - Description of real world experience and feedback from:
>>a> Devops and Users deploying Gluster in production
>>b> Developers integrating Gluster with other ecosystems
>>
>> 3. Use cases  - focusing on key use cases that drive Gluster.today and
>> Gluster.Next
>>
>> 4. Stability & Performance - focusing on current improvements to reduce
>> our technical debt backlog
>>
>> 5. Process & infrastructure  - focusing on improving current workflow,
>> infrastructure to make life easier for all of us!
>>
>> If you have a talk/discussion proposal that can be part of these themes,
>> please send out your proposal(s) by replying to this thread. Please clearly
>> mention the theme for which your proposal is relevant when you do so. We
>> will be ending the CFP by 12 midnight PDT on August 31st, 2016.
>>
>> If you have other topics that do not fit in the themes listed, please
>> feel free to propose and we might be able to accommodate some of them as
>> lightening talks or something similar.
>>
>> Please do reach out to me or Amye if you have any questions.
>>
>> Thanks!
>> Vijay
>>
>> [1] https://www.gluster.org/events/summit2016/
>> ___
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>>
>
>
>
> --
> nigelb
>
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[Gluster-devel] Multiplexing status, August 31

[Jeff Darcy]

(This is as much for my own reference as anything, but there seems to be a 
decent chance that others might be interested)

The good news is that almost all of the tests in tests/basic, except for those 
related to problematic features (see below) pass now.  Two of the AFR tests 
fail sporadically because they're timing-dependent.  Self-heal just seems 
really slow sometimes, so it doesn't complete before the assigned timeout and 
the tests.  Since I have yet to find any evidence that this is related to 
multiplexing, investigating this is currently a low priority.  The problematic 
features fall into two categories:

  Features that can't even coexist with multiplexing yet
changelog
trash

  Features that coexist, but most tests still fail
quota
snapshot (including USS)
tiering

The two exceptions that don't have to do with those features are both EC tests, 
though they're not strictly EC-related.  One test fails because of a problem 
starting many bricks in quick succession, so that the brick process hasn't 
fully started before we start pounding it with "attach" requests for the 
others.  I'm not sure why this only seems to affect one test, but in any event 
I expect to have that problem fixed soon.  The other problem is that enabling 
fop statistics doesn't work quite right, because we do it via reconfigure (ick) 
and that doesn't quite work right with multiple bricks.  That fix will probably 
take a bit longer.

In addition to those two fixes, and any for the problematic features mentioned 
above, here are the main development tasks remaining.

* Fix handling of auth options, which currently reside on the server translator 
and need to be moved (at some point during the startup process) to the bricks 
below.  This is not currently affecting any tests, but I know it's incorrect.

* Add detection of incompatible transport options (which would preclude 
multiplexing).  To disable multiplexing, we just act as though all transport 
options are incompatible.

* Test multiplexing of bricks belonging to different volumes (compatible but 
with different auth options).

* Measure performance and memory use impacts.


Clearly this is not all going to happen before the end of today for 3.9, but 
it's looking pretty good for the end of September.  Maybe I'll even be able to 
show some results at the Berlin summit.
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[Gluster-devel] adding smoke test to catch printf-style format string errors

[Kaleb S. KEITHLEY]

Hi,

FYI, we are adding a new smoke test that builds on a 32-bit platform to
catch printf-style format string errors.

We have cleaned up these errors in the past, but they're creeping in
again in new code and fixes.

The test will start out as a non-voting test. After we get the source
cleaned up again the test will be changed to a voting test, i.e. smoke
will fail if there are format string errors.

Thanks,

-- 

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Re: [Gluster-devel] CFP for Gluster Developer Summit

[Nigel Babu]

I have one more talk to propose:

Deterministic Releases and How to Get There
Our release process needs to less about communication and more about "Are
we confident this release is good". The path to get there is long and
involves a lot of work. I'd like to talk about my rough ideas, get
feedback, and come up with a solid plan to make this happen.

On Sat, Aug 13, 2016 at 1:18 AM, Vijay Bellur  wrote:

> Hey All,
>
> Gluster Developer Summit 2016 is fast approaching [1] on us. We are
> looking to have talks and discussions related to the following themes in
> the summit:
>
> 1. Gluster.Next - focusing on features shaping the future of Gluster
>
> 2. Experience - Description of real world experience and feedback from:
>a> Devops and Users deploying Gluster in production
>b> Developers integrating Gluster with other ecosystems
>
> 3. Use cases  - focusing on key use cases that drive Gluster.today and
> Gluster.Next
>
> 4. Stability & Performance - focusing on current improvements to reduce
> our technical debt backlog
>
> 5. Process & infrastructure  - focusing on improving current workflow,
> infrastructure to make life easier for all of us!
>
> If you have a talk/discussion proposal that can be part of these themes,
> please send out your proposal(s) by replying to this thread. Please clearly
> mention the theme for which your proposal is relevant when you do so. We
> will be ending the CFP by 12 midnight PDT on August 31st, 2016.
>
> If you have other topics that do not fit in the themes listed, please feel
> free to propose and we might be able to accommodate some of them as
> lightening talks or something similar.
>
> Please do reach out to me or Amye if you have any questions.
>
> Thanks!
> Vijay
>
> [1] https://www.gluster.org/events/summit2016/
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>



-- 
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[Gluster-devel] Running strfmt as smoke test

[Nigel Babu]

Hello,

Kaleb has pointed out that the number of failures here are creeping up.
I've suggested we run this as a smoke test. It's going to fail all the time
at first, so I propose it be a non-voting test for now. Once we get master
in a good shape, we can turn on voting for this job.

Does that sound like a reasonable idea? I'll probably only run it on master
for now and any future branches (excluding i.e. after 3.9).

-- 
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Re: [Gluster-devel] [Gluster-Maintainers] Request to provide PASS flags to a patch in gerrit

[Kaushal M]

I've given the flags. The change can be merged now.

On Wed, Aug 31, 2016 at 5:06 PM, Aravinda  wrote:
> +1
>
> regards
> Aravinda
>
> On Wednesday 31 August 2016 04:23 PM, Raghavendra Talur wrote:
>
> Hi All,
>
> We have a test [1] which is causing hangs in NetBSD. We have not been able
> to debug the issue yet.
> It could be because the bash script does not comply with posix guidelines or
> that there is a bug in the brick code.
>
> However, as we have 3.9 merge deadline tomorrow this is causing the test
> pipeline to grow a lot and needing manual intervention.
> I recommend we disable this test for now. I request Kaushal to provide pass
> flags to the patch [2] for faster merge.
>
>
> [1] ./tests/features/lock_revocation.t
> [2] http://review.gluster.org/#/c/15374/
>
>
> Thanks,
> Raghavendra Talur
>
>
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>
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Re: [Gluster-devel] [Gluster-infra] Request to provide PASS flags to a patch in gerrit

[Nigel Babu]

On Wed, Aug 31, 2016 at 4:23 PM, Raghavendra Talur 
wrote:

> Hi All,
>
> We have a test [1] which is causing hangs in NetBSD. We have not been able
> to debug the issue yet.
> It could be because the bash script does not comply with posix guidelines
> or that there is a bug in the brick code.
>
> However, as we have 3.9 merge deadline tomorrow this is causing the test
> pipeline to grow a lot and needing manual intervention.
> I recommend we disable this test for now. I request Kaushal to provide
> pass flags to the patch [2] for faster merge.
>
>
> [1] ./tests/features/lock_revocation.t
> [2] http://review.gluster.org/#/c/15374/
>
>
This is not a good long-term idea. That's not the only test we fail on. We
fail on that a good number of times, but we also fail on other tests.

See for example:
https://build.gluster.org/job/netbsd7-regression/443/console

Have we confirmed this is not a Gluster bug that we'll be shipping? Because
that'd be quite a terrible thing to ship to our users.

Especially because it also happened in CentOS once, so it's not entirely "a
NetBSD problem": https://build.gluster.org/job/
centos6-regression/339/console

I've been trying to get maintainers of the component and the test framework
to look at this bug for weeks now. If we only care about failing tests
enough to disable it right before release, that's going to cause more
technical debt than actually catch any regressions.

-- 
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Re: [Gluster-devel] [Gluster-Maintainers] Request to provide PASS flags to a patch in gerrit

[Aravinda]

+1

regards
Aravinda

On Wednesday 31 August 2016 04:23 PM, Raghavendra Talur wrote:

Hi All,

We have a test [1] which is causing hangs in NetBSD. We have not been 
able to debug the issue yet.
It could be because the bash script does not comply with posix 
guidelines or that there is a bug in the brick code.


However, as we have 3.9 merge deadline tomorrow this is causing the 
test pipeline to grow a lot and needing manual intervention.
I recommend we disable this test for now. I request Kaushal to provide 
pass flags to the patch [2] for faster merge.



[1] ./tests/features/lock_revocation.t
[2] http://review.gluster.org/#/c/15374/


Thanks,
Raghavendra Talur


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Re: [Gluster-devel] [Gluster-Maintainers] Request to provide PASS flags to a patch in gerrit

[Atin Mukherjee]

On Wed, Aug 31, 2016 at 4:23 PM, Raghavendra Talur 
wrote:

> Hi All,
>
> We have a test [1] which is causing hangs in NetBSD. We have not been able
> to debug the issue yet.
> It could be because the bash script does not comply with posix guidelines
> or that there is a bug in the brick code.
>
> However, as we have 3.9 merge deadline tomorrow this is causing the test
> pipeline to grow a lot and needing manual intervention.
> I recommend we disable this test for now. I request Kaushal to provide
> pass flags to the patch [2] for faster merge.
>

+1 to this as we have a very long regression queue in the pipeline and this
patch may get its turn pretty late.


>
>
> [1] ./tests/features/lock_revocation.t
> [2] http://review.gluster.org/#/c/15374/
>
>
> Thanks,
> Raghavendra Talur
>
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-- 

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[Gluster-devel] Request to provide PASS flags to a patch in gerrit

[Raghavendra Talur]

Hi All,

We have a test [1] which is causing hangs in NetBSD. We have not been able
to debug the issue yet.
It could be because the bash script does not comply with posix guidelines
or that there is a bug in the brick code.

However, as we have 3.9 merge deadline tomorrow this is causing the test
pipeline to grow a lot and needing manual intervention.
I recommend we disable this test for now. I request Kaushal to provide pass
flags to the patch [2] for faster merge.


[1] ./tests/features/lock_revocation.t
[2] http://review.gluster.org/#/c/15374/


Thanks,
Raghavendra Talur
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Re: [Gluster-devel] [Gluster-users] CFP for Gluster Developer Summit

[Saravanakumar Arumugam]

Hi,

I 'd like to talk about:

Title : Gluster and Bareos Integration - Opensource Backup solution

Theme :  Experience - Description of real world experience and feedback 
from:
   b> Developers integrating Gluster with 
other ecosystems


Agenda Planned:
- Bareos Introduction
- Bareos integration with Glusterfs
- Leverage Glusterfs functionality for Bareos
- Demo on integrated solution

Thanks,
Saravana

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Re: [Gluster-devel] [Gluster-users] CFP for Gluster Developer Summit

[Paul Cuzner]

Sounds great!

I had to knit together different cli commands in the past for 'gstatus' to
provide a view of the cluster - so this is a cool.

Would it be possible to add an example of the output to the RFE BZ* 1353156
* 

*?*
Paul C

On Wed, Aug 31, 2016 at 6:13 PM, Samikshan Bairagya 
wrote:

> Hi all,
>
> I'd like to propose the following talk for Gluster Developer Summit 2016.
>
> Title: How an external application looking to integrate with Gluster can
> use the CLI to get the state of a cluster
>
> Theme: Experience (Developers integrating Gluster with other ecosystems)
>
> Gluster 3.9 will have a new CLI that can be used to get the local state
> representation of a cluster. This can be used by external applications
> (like storage managers) to get a representation of the entire state of a
> cluster. I plan to talk about this during the summit and will cover the
> following:
>
> - Introduction
> - List of data points covered in the state representation
> - How to consume this CLI
> - Discussion on what other data points might need to be added later on.
> - Demo (External application representing the state of a cluster using
> data obtained from the CLI)
>
> Thanks and Regards,
>
> Samikshan
>
> On 08/13/2016 01:18 AM, Vijay Bellur wrote:
>
>> Hey All,
>>
>> Gluster Developer Summit 2016 is fast approaching [1] on us. We are
>> looking to have talks and discussions related to the following themes in
>> the summit:
>>
>> 1. Gluster.Next - focusing on features shaping the future of Gluster
>>
>> 2. Experience - Description of real world experience and feedback from:
>>a> Devops and Users deploying Gluster in production
>>b> Developers integrating Gluster with other ecosystems
>>
>> 3. Use cases  - focusing on key use cases that drive Gluster.today and
>> Gluster.Next
>>
>> 4. Stability & Performance - focusing on current improvements to reduce
>> our technical debt backlog
>>
>> 5. Process & infrastructure  - focusing on improving current workflow,
>> infrastructure to make life easier for all of us!
>>
>> If you have a talk/discussion proposal that can be part of these themes,
>> please send out your proposal(s) by replying to this thread. Please
>> clearly mention the theme for which your proposal is relevant when you
>> do so. We will be ending the CFP by 12 midnight PDT on August 31st, 2016.
>>
>> If you have other topics that do not fit in the themes listed, please
>> feel free to propose and we might be able to accommodate some of them as
>> lightening talks or something similar.
>>
>> Please do reach out to me or Amye if you have any questions.
>>
>> Thanks!
>> Vijay
>>
>> [1] https://www.gluster.org/events/summit2016/
>> ___
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Re: [Gluster-devel] [Gluster-users] CFP for Gluster Developer Summit

[Samikshan Bairagya]

Hi all,

I'd like to propose the following talk for Gluster Developer Summit 2016.

Title: How an external application looking to integrate with Gluster can 
use the CLI to get the state of a cluster


Theme: Experience (Developers integrating Gluster with other ecosystems)

Gluster 3.9 will have a new CLI that can be used to get the local state 
representation of a cluster. This can be used by external applications 
(like storage managers) to get a representation of the entire state of a 
cluster. I plan to talk about this during the summit and will cover the 
following:


- Introduction
- List of data points covered in the state representation
- How to consume this CLI
- Discussion on what other data points might need to be added later on.
- Demo (External application representing the state of a cluster using 
data obtained from the CLI)


Thanks and Regards,

Samikshan

On 08/13/2016 01:18 AM, Vijay Bellur wrote:

Hey All,

Gluster Developer Summit 2016 is fast approaching [1] on us. We are
looking to have talks and discussions related to the following themes in
the summit:

1. Gluster.Next - focusing on features shaping the future of Gluster

2. Experience - Description of real world experience and feedback from:
   a> Devops and Users deploying Gluster in production
   b> Developers integrating Gluster with other ecosystems

3. Use cases  - focusing on key use cases that drive Gluster.today and
Gluster.Next

4. Stability & Performance - focusing on current improvements to reduce
our technical debt backlog

5. Process & infrastructure  - focusing on improving current workflow,
infrastructure to make life easier for all of us!

If you have a talk/discussion proposal that can be part of these themes,
please send out your proposal(s) by replying to this thread. Please
clearly mention the theme for which your proposal is relevant when you
do so. We will be ending the CFP by 12 midnight PDT on August 31st, 2016.

If you have other topics that do not fit in the themes listed, please
feel free to propose and we might be able to accommodate some of them as
lightening talks or something similar.

Please do reach out to me or Amye if you have any questions.

Thanks!
Vijay

[1] https://www.gluster.org/events/summit2016/
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[Gluster-devel] Bug Triage meeting log

[Ankit Raj]

Hello,

Here are the log of yesterday Gluster Community Bug Triage Meeting.

 Minutes:
https://meetbot.fedoraproject.org/gluster-meeting/2016-08-30/gluster_community_bug_triage_meeting.2016-08-30-12.00.html
 Minutes (text):
https://meetbot.fedoraproject.org/gluster-meeting/2016-08-30/gluster_community_bug_triage_meeting.2016-08-30-12.00.txt
Log:
https://meetbot.fedoraproject.org/gluster-meeting/2016-08-30/gluster_community_bug_triage_meeting.2016-08-30-12.00.log.html



Thanks, for your participation.

Regards,
Ankit Raj
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