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Posted to dev@tez.apache.org by Siddharth Seth <ss...@apache.org> on 2015/08/27 02:12:28 UTC

[VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

I have created a tez-0.8.0-alpha release candidate (rc1).

GIT source tag:
*https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
<https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1>*

Staging site:
https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
<https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>

Nexus Staging URL:
*https://repository.apache.org/content/repositories/orgapachetez-1040/
<https://repository.apache.org/content/repositories/orgapachetez-1040/>*

*https://repository.apache.org/content/repositories/orgapachetez-1041/
<https://repository.apache.org/content/repositories/orgapachetez-1041/>*
PGP release keys:
http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
KEYS file available at
*https://dist.apache.org/repos/dist/release/tez/KEYS
<https://dist.apache.org/repos/dist/release/tez/KEYS>*

List of issues fixed in the release:
*https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
<https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
Also available in CHANGES.txt within the release tarball.

Vote will be open for at least 72 hours ( until the required number of PMC
votes are obtained).

[ ] +1 approve
[ ] +0 no opinion
[ ] -1 disapprove (and reason why)

Here's my +1

Thanks
- Sid

RE: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Bikas Saha <bi...@hortonworks.com>.
+1

-----Original Message-----
From: Hitesh Shah [mailto:hitesh@apache.org] 
Sent: Monday, August 31, 2015 12:17 PM
To: dev@tez.apache.org
Subject: Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

+1 (binding)

Verified sigs/checksums. Ran basic jobs locally.

thanks
- Hitesh

On Aug 26, 2015, at 5:12 PM, Siddharth Seth <ss...@apache.org> wrote:

> I have created a tez-0.8.0-alpha release candidate (rc1).
> 
> GIT source tag:
> *https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=re
> fs/tags/release-0.8.0-alpha-rc1
> <https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=re
> fs/tags/release-0.8.0-alpha-rc1>*
> 
> Staging site:
> https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
> 
> Nexus Staging URL:
> *https://repository.apache.org/content/repositories/orgapachetez-1040/
> <https://repository.apache.org/content/repositories/orgapachetez-1040/
> >*
> 
> *https://repository.apache.org/content/repositories/orgapachetez-1041/
> <https://repository.apache.org/content/repositories/orgapachetez-1041/
> >*
> PGP release keys:
> http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> KEYS file available at
> *https://dist.apache.org/repos/dist/release/tez/KEYS
> <https://dist.apache.org/repos/dist/release/tez/KEYS>*
> 
> List of issues fixed in the release:
> *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> Also available in CHANGES.txt within the release tarball.
> 
> Vote will be open for at least 72 hours ( until the required number of 
> PMC votes are obtained).
> 
> [ ] +1 approve
> [ ] +0 no opinion
> [ ] -1 disapprove (and reason why)
> 
> Here's my +1
> 
> Thanks
> - Sid



Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Hitesh Shah <hi...@apache.org>.
+1 (binding)

Verified sigs/checksums. Ran basic jobs locally.

thanks
— Hitesh

On Aug 26, 2015, at 5:12 PM, Siddharth Seth <ss...@apache.org> wrote:

> I have created a tez-0.8.0-alpha release candidate (rc1).
> 
> GIT source tag:
> *https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> <https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1>*
> 
> Staging site:
> https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
> 
> Nexus Staging URL:
> *https://repository.apache.org/content/repositories/orgapachetez-1040/
> <https://repository.apache.org/content/repositories/orgapachetez-1040/>*
> 
> *https://repository.apache.org/content/repositories/orgapachetez-1041/
> <https://repository.apache.org/content/repositories/orgapachetez-1041/>*
> PGP release keys:
> http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> KEYS file available at
> *https://dist.apache.org/repos/dist/release/tez/KEYS
> <https://dist.apache.org/repos/dist/release/tez/KEYS>*
> 
> List of issues fixed in the release:
> *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> Also available in CHANGES.txt within the release tarball.
> 
> Vote will be open for at least 72 hours ( until the required number of PMC
> votes are obtained).
> 
> [ ] +1 approve
> [ ] +0 no opinion
> [ ] -1 disapprove (and reason why)
> 
> Here's my +1
> 
> Thanks
> - Sid


Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by "Jianfeng (Jeff) Zhang" <jz...@hortonworks.com>.
+1 Build it with hadoop-2.2.0 2.4.0 & 2.6.0 successfully. Ran some tez
examples jobs both in single-node cluster and local mode successfully.

Build it with latest pig code, and ran some pig scripts successfully.


Best Regard,
Jeff Zhang





On 8/31/15, 11:42 AM, "Rajesh Balamohan" <rb...@apache.org> wrote:

>+1.
>
>Verified signatures; built from source and deployed on medium scale
>cluster.
>Tried out tez-examples and Tested jobs with latest hive builds @ 10 TB
>scale. Works fine. Haven't tested in local mode.
>
>~Rajesh.B
>
>
>On Thu, Aug 27, 2015 at 9:04 PM, Andre Kelpe <ak...@concurrentinc.com>
>wrote:
>
>> This time it is easier to run. I created a JIRA with the steps to
>> reproduce:
>>
>> https://issues.apache.org/jira/browse/TEZ-2750
>>
>> - André
>>
>> On Thu, Aug 27, 2015 at 5:23 PM, Siddharth Seth <ss...@apache.org>
>>wrote:
>>
>> > Andre,
>> > The TaskRunner code has changed a bit in master, and interrupting
>>tasks
>> is
>> > an important part of it - so this may very well be similar to
>>TEZ-2475.
>> Are
>> > the steps to reproduce this the same as TEZ-2475, and the same
>>codebase ?
>> > If not, could you please file a jira with details. I'll look into it.
>> > 0.8.0-alpha is a release to get the work done to support external
>> services
>> > into a release, and there's going to be several more in this line. I'd
>> like
>> > to target the fix for the issue you reported for the next release off
>>of
>> > this branch.
>> >
>> > Thanks
>> > - Sid
>> >
>> > On Thu, Aug 27, 2015 at 2:48 AM, Andre Kelpe
>><ak...@concurrentinc.com>
>> > wrote:
>> >
>> > > I gave that one a quick spin. Cascading 3.0 compiles fine, but it
>>hangs
>> > in
>> > > the tests indefinitely. It looks similar to
>> > > https://issues.apache.org/jira/browse/TEZ-2475 I currently don't
>>have
>> > the
>> > > bandwidth to dig deeper unfortunately.
>> > >
>> > > - André
>> > >
>> > > On Thu, Aug 27, 2015 at 2:12 AM, Siddharth Seth <ss...@apache.org>
>> > wrote:
>> > >
>> > > > I have created a tez-0.8.0-alpha release candidate (rc1).
>> > > >
>> > > > GIT source tag:
>> > > > *
>> > > >
>> > >
>> >
>> 
>>https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/t
>>ags/release-0.8.0-alpha-rc1
>> > > > <
>> > > >
>> > >
>> >
>> 
>>https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/t
>>ags/release-0.8.0-alpha-rc1
>> > > > >*
>> > > >
>> > > > Staging site:
>> > > > https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
>> > > > <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
>> > > >
>> > > > Nexus Staging URL:
>> > > > *
>> https://repository.apache.org/content/repositories/orgapachetez-1040/
>> > > > <
>> https://repository.apache.org/content/repositories/orgapachetez-1040/
>> > >*
>> > > >
>> > > > *
>> https://repository.apache.org/content/repositories/orgapachetez-1041/
>> > > > <
>> https://repository.apache.org/content/repositories/orgapachetez-1041/
>> > >*
>> > > > PGP release keys:
>> > > > http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
>> > > > KEYS file available at
>> > > > *https://dist.apache.org/repos/dist/release/tez/KEYS
>> > > > <https://dist.apache.org/repos/dist/release/tez/KEYS>*
>> > > >
>> > > > List of issues fixed in the release:
>> > > > *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
>> > > > 
>><https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
>> > > > Also available in CHANGES.txt within the release tarball.
>> > > >
>> > > > Vote will be open for at least 72 hours ( until the required
>>number
>> of
>> > > PMC
>> > > > votes are obtained).
>> > > >
>> > > > [ ] +1 approve
>> > > > [ ] +0 no opinion
>> > > > [ ] -1 disapprove (and reason why)
>> > > >
>> > > > Here's my +1
>> > > >
>> > > > Thanks
>> > > > - Sid
>> > > >
>> > >
>> > >
>> > >
>> > > --
>> > > André Kelpe
>> > > andre@concurrentinc.com
>> > > http://concurrentinc.com
>> > >
>> >
>>
>>
>>
>> --
>> André Kelpe
>> andre@concurrentinc.com
>> http://concurrentinc.com
>>


Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Rajesh Balamohan <rb...@apache.org>.
+1.

Verified signatures; built from source and deployed on medium scale cluster.
Tried out tez-examples and Tested jobs with latest hive builds @ 10 TB
scale. Works fine. Haven't tested in local mode.

~Rajesh.B


On Thu, Aug 27, 2015 at 9:04 PM, Andre Kelpe <ak...@concurrentinc.com>
wrote:

> This time it is easier to run. I created a JIRA with the steps to
> reproduce:
>
> https://issues.apache.org/jira/browse/TEZ-2750
>
> - André
>
> On Thu, Aug 27, 2015 at 5:23 PM, Siddharth Seth <ss...@apache.org> wrote:
>
> > Andre,
> > The TaskRunner code has changed a bit in master, and interrupting tasks
> is
> > an important part of it - so this may very well be similar to TEZ-2475.
> Are
> > the steps to reproduce this the same as TEZ-2475, and the same codebase ?
> > If not, could you please file a jira with details. I'll look into it.
> > 0.8.0-alpha is a release to get the work done to support external
> services
> > into a release, and there's going to be several more in this line. I'd
> like
> > to target the fix for the issue you reported for the next release off of
> > this branch.
> >
> > Thanks
> > - Sid
> >
> > On Thu, Aug 27, 2015 at 2:48 AM, Andre Kelpe <ak...@concurrentinc.com>
> > wrote:
> >
> > > I gave that one a quick spin. Cascading 3.0 compiles fine, but it hangs
> > in
> > > the tests indefinitely. It looks similar to
> > > https://issues.apache.org/jira/browse/TEZ-2475 I currently don't have
> > the
> > > bandwidth to dig deeper unfortunately.
> > >
> > > - André
> > >
> > > On Thu, Aug 27, 2015 at 2:12 AM, Siddharth Seth <ss...@apache.org>
> > wrote:
> > >
> > > > I have created a tez-0.8.0-alpha release candidate (rc1).
> > > >
> > > > GIT source tag:
> > > > *
> > > >
> > >
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > > > <
> > > >
> > >
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > > > >*
> > > >
> > > > Staging site:
> > > > https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> > > > <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
> > > >
> > > > Nexus Staging URL:
> > > > *
> https://repository.apache.org/content/repositories/orgapachetez-1040/
> > > > <
> https://repository.apache.org/content/repositories/orgapachetez-1040/
> > >*
> > > >
> > > > *
> https://repository.apache.org/content/repositories/orgapachetez-1041/
> > > > <
> https://repository.apache.org/content/repositories/orgapachetez-1041/
> > >*
> > > > PGP release keys:
> > > > http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> > > > KEYS file available at
> > > > *https://dist.apache.org/repos/dist/release/tez/KEYS
> > > > <https://dist.apache.org/repos/dist/release/tez/KEYS>*
> > > >
> > > > List of issues fixed in the release:
> > > > *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> > > > <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> > > > Also available in CHANGES.txt within the release tarball.
> > > >
> > > > Vote will be open for at least 72 hours ( until the required number
> of
> > > PMC
> > > > votes are obtained).
> > > >
> > > > [ ] +1 approve
> > > > [ ] +0 no opinion
> > > > [ ] -1 disapprove (and reason why)
> > > >
> > > > Here's my +1
> > > >
> > > > Thanks
> > > > - Sid
> > > >
> > >
> > >
> > >
> > > --
> > > André Kelpe
> > > andre@concurrentinc.com
> > > http://concurrentinc.com
> > >
> >
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
>

Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Andre Kelpe <ak...@concurrentinc.com>.
This time it is easier to run. I created a JIRA with the steps to reproduce:

https://issues.apache.org/jira/browse/TEZ-2750

- André

On Thu, Aug 27, 2015 at 5:23 PM, Siddharth Seth <ss...@apache.org> wrote:

> Andre,
> The TaskRunner code has changed a bit in master, and interrupting tasks is
> an important part of it - so this may very well be similar to TEZ-2475. Are
> the steps to reproduce this the same as TEZ-2475, and the same codebase ?
> If not, could you please file a jira with details. I'll look into it.
> 0.8.0-alpha is a release to get the work done to support external services
> into a release, and there's going to be several more in this line. I'd like
> to target the fix for the issue you reported for the next release off of
> this branch.
>
> Thanks
> - Sid
>
> On Thu, Aug 27, 2015 at 2:48 AM, Andre Kelpe <ak...@concurrentinc.com>
> wrote:
>
> > I gave that one a quick spin. Cascading 3.0 compiles fine, but it hangs
> in
> > the tests indefinitely. It looks similar to
> > https://issues.apache.org/jira/browse/TEZ-2475 I currently don't have
> the
> > bandwidth to dig deeper unfortunately.
> >
> > - André
> >
> > On Thu, Aug 27, 2015 at 2:12 AM, Siddharth Seth <ss...@apache.org>
> wrote:
> >
> > > I have created a tez-0.8.0-alpha release candidate (rc1).
> > >
> > > GIT source tag:
> > > *
> > >
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > > <
> > >
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > > >*
> > >
> > > Staging site:
> > > https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> > > <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
> > >
> > > Nexus Staging URL:
> > > *https://repository.apache.org/content/repositories/orgapachetez-1040/
> > > <https://repository.apache.org/content/repositories/orgapachetez-1040/
> >*
> > >
> > > *https://repository.apache.org/content/repositories/orgapachetez-1041/
> > > <https://repository.apache.org/content/repositories/orgapachetez-1041/
> >*
> > > PGP release keys:
> > > http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> > > KEYS file available at
> > > *https://dist.apache.org/repos/dist/release/tez/KEYS
> > > <https://dist.apache.org/repos/dist/release/tez/KEYS>*
> > >
> > > List of issues fixed in the release:
> > > *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> > > <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> > > Also available in CHANGES.txt within the release tarball.
> > >
> > > Vote will be open for at least 72 hours ( until the required number of
> > PMC
> > > votes are obtained).
> > >
> > > [ ] +1 approve
> > > [ ] +0 no opinion
> > > [ ] -1 disapprove (and reason why)
> > >
> > > Here's my +1
> > >
> > > Thanks
> > > - Sid
> > >
> >
> >
> >
> > --
> > André Kelpe
> > andre@concurrentinc.com
> > http://concurrentinc.com
> >
>



-- 
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com

Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Siddharth Seth <ss...@apache.org>.
Andre,
The TaskRunner code has changed a bit in master, and interrupting tasks is
an important part of it - so this may very well be similar to TEZ-2475. Are
the steps to reproduce this the same as TEZ-2475, and the same codebase ?
If not, could you please file a jira with details. I'll look into it.
0.8.0-alpha is a release to get the work done to support external services
into a release, and there's going to be several more in this line. I'd like
to target the fix for the issue you reported for the next release off of
this branch.

Thanks
- Sid

On Thu, Aug 27, 2015 at 2:48 AM, Andre Kelpe <ak...@concurrentinc.com>
wrote:

> I gave that one a quick spin. Cascading 3.0 compiles fine, but it hangs in
> the tests indefinitely. It looks similar to
> https://issues.apache.org/jira/browse/TEZ-2475 I currently don't have the
> bandwidth to dig deeper unfortunately.
>
> - André
>
> On Thu, Aug 27, 2015 at 2:12 AM, Siddharth Seth <ss...@apache.org> wrote:
>
> > I have created a tez-0.8.0-alpha release candidate (rc1).
> >
> > GIT source tag:
> > *
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > <
> >
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> > >*
> >
> > Staging site:
> > https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> > <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
> >
> > Nexus Staging URL:
> > *https://repository.apache.org/content/repositories/orgapachetez-1040/
> > <https://repository.apache.org/content/repositories/orgapachetez-1040/>*
> >
> > *https://repository.apache.org/content/repositories/orgapachetez-1041/
> > <https://repository.apache.org/content/repositories/orgapachetez-1041/>*
> > PGP release keys:
> > http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> > KEYS file available at
> > *https://dist.apache.org/repos/dist/release/tez/KEYS
> > <https://dist.apache.org/repos/dist/release/tez/KEYS>*
> >
> > List of issues fixed in the release:
> > *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> > <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> > Also available in CHANGES.txt within the release tarball.
> >
> > Vote will be open for at least 72 hours ( until the required number of
> PMC
> > votes are obtained).
> >
> > [ ] +1 approve
> > [ ] +0 no opinion
> > [ ] -1 disapprove (and reason why)
> >
> > Here's my +1
> >
> > Thanks
> > - Sid
> >
>
>
>
> --
> André Kelpe
> andre@concurrentinc.com
> http://concurrentinc.com
>

Re: [VOTE] Release Apache-Tez-0.8.0-alpha (rc1)

Posted by Andre Kelpe <ak...@concurrentinc.com>.
I gave that one a quick spin. Cascading 3.0 compiles fine, but it hangs in
the tests indefinitely. It looks similar to
https://issues.apache.org/jira/browse/TEZ-2475 I currently don't have the
bandwidth to dig deeper unfortunately.

- André

On Thu, Aug 27, 2015 at 2:12 AM, Siddharth Seth <ss...@apache.org> wrote:

> I have created a tez-0.8.0-alpha release candidate (rc1).
>
> GIT source tag:
> *
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> <
> https://git-wip-us.apache.org/repos/asf/tez/repo?p=tez.git;a=log;h=refs/tags/release-0.8.0-alpha-rc1
> >*
>
> Staging site:
> https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc1/
> <https://dist.apache.org/repos/dist/dev/tez/0.8.0-alpha-rc0/>
>
> Nexus Staging URL:
> *https://repository.apache.org/content/repositories/orgapachetez-1040/
> <https://repository.apache.org/content/repositories/orgapachetez-1040/>*
>
> *https://repository.apache.org/content/repositories/orgapachetez-1041/
> <https://repository.apache.org/content/repositories/orgapachetez-1041/>*
> PGP release keys:
> http://pgp.mit.edu/pks/lookup?op=get&search=0x477E02D33DD51430
> KEYS file available at
> *https://dist.apache.org/repos/dist/release/tez/KEYS
> <https://dist.apache.org/repos/dist/release/tez/KEYS>*
>
> List of issues fixed in the release:
> *https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/
> <https://issues.apache.org/jira/browse/TEZ/fixforversion/12332073/>*
> Also available in CHANGES.txt within the release tarball.
>
> Vote will be open for at least 72 hours ( until the required number of PMC
> votes are obtained).
>
> [ ] +1 approve
> [ ] +0 no opinion
> [ ] -1 disapprove (and reason why)
>
> Here's my +1
>
> Thanks
> - Sid
>



-- 
André Kelpe
andre@concurrentinc.com
http://concurrentinc.com