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Posted to dev@mesos.apache.org by Jiang Yan Xu <ya...@jxu.me> on 2014/04/18 01:47:11 UTC

Re: Review Request 20470: Fixed an incorrect CHECK in Group.

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https://reviews.apache.org/r/20470/
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(Updated April 17, 2014, 4:47 p.m.)


Review request for mesos and Ben Mahler.


Changes
-------

Dominic reminded me that people can change code and run into regressions so it's better to be explicit about expectations.


Summary (updated)
-----------------

Fixed an incorrect CHECK in Group.


Bugs: MESOS-1214
    https://issues.apache.org/jira/browse/MESOS-1214


Repository: mesos-git


Description (updated)
-------

- Retry can be invoked when the Group is in any state but DISCONNECTED.


Diffs (updated)
-----

  src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 

Diff: https://reviews.apache.org/r/20470/diff/


Testing
-------

make check.


Thanks,

Jiang Yan Xu


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Vinod Kone <vi...@gmail.com>.
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/#review40718
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Ship it!


Ship It!

- Vinod Kone


On April 17, 2014, 11:47 p.m., Jiang Yan Xu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/20470/
> -----------------------------------------------------------
> 
> (Updated April 17, 2014, 11:47 p.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-1214
>     https://issues.apache.org/jira/browse/MESOS-1214
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> - Retry can be invoked when the Group is in any state but DISCONNECTED.
> 
> 
> Diffs
> -----
> 
>   src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 
> 
> Diff: https://reviews.apache.org/r/20470/diff/
> 
> 
> Testing
> -------
> 
> make check.
> 
> 
> Thanks,
> 
> Jiang Yan Xu
> 
>


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Ben Mahler <be...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/#review40728
-----------------------------------------------------------

Ship it!



src/zookeeper/group.cpp
<https://reviews.apache.org/r/20470/#comment73872>

    This comment sounds like something handled by an 'if' condition, maybe say:
    
    // In order to be retrying, we should be at least CONNECTED.
    
    Up to you.


- Ben Mahler


On April 18, 2014, 12:13 a.m., Jiang Yan Xu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/20470/
> -----------------------------------------------------------
> 
> (Updated April 18, 2014, 12:13 a.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-1214
>     https://issues.apache.org/jira/browse/MESOS-1214
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> - Retry can be invoked when the Group is in any state but DISCONNECTED.
> 
> 
> Diffs
> -----
> 
>   src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 
> 
> Diff: https://reviews.apache.org/r/20470/diff/
> 
> 
> Testing
> -------
> 
> make check.
> 
> 
> Thanks,
> 
> Jiang Yan Xu
> 
>


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Jiang Yan Xu <ya...@jxu.me>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/
-----------------------------------------------------------

(Updated April 17, 2014, 5:13 p.m.)


Review request for mesos and Ben Mahler.


Changes
-------

It should be right this time.


Bugs: MESOS-1214
    https://issues.apache.org/jira/browse/MESOS-1214


Repository: mesos-git


Description
-------

- Retry can be invoked when the Group is in any state but DISCONNECTED.


Diffs (updated)
-----

  src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 

Diff: https://reviews.apache.org/r/20470/diff/


Testing
-------

make check.


Thanks,

Jiang Yan Xu


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Jiang Yan Xu <ya...@jxu.me>.

> On April 17, 2014, 4:56 p.m., Ben Mahler wrote:
> > src/zookeeper/group.cpp, lines 884-886
> > <https://reviews.apache.org/r/20470/diff/2/?file=561887#file561887line884>
> >
> >     Another question here:
> >     
> >     This says we can be in CONNECTING, and then we immediately call sync(). sync() will fail a CHECK if in state CONNECTING?

It's guarded by 'retrying' but yeah this statement can be confusing.

I guess I can move it up to the top of the method:

  CHECK(state == CONNECTING || state == CONNECTED || state == AUTHENTICATED ||
      state == READY) << state;
  if (!retrying) {
    // Retry could be cancelled before it is scheduled.
    return;
  }

Or leave it here but just have 
    CHECK(state == CONNECTED || state == AUTHENTICATED || state == READY) << state;

The latter looks better. 


But then immediately inside sync() we do the same CHECK again...

I guess checking it twice won't hurt and sync() is called also by connected(). I'll just leave the CHECK statement in both places.


- Jiang Yan


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/#review40719
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On April 17, 2014, 4:53 p.m., Jiang Yan Xu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/20470/
> -----------------------------------------------------------
> 
> (Updated April 17, 2014, 4:53 p.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-1214
>     https://issues.apache.org/jira/browse/MESOS-1214
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> - Retry can be invoked when the Group is in any state but DISCONNECTED.
> 
> 
> Diffs
> -----
> 
>   src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 
> 
> Diff: https://reviews.apache.org/r/20470/diff/
> 
> 
> Testing
> -------
> 
> make check.
> 
> 
> Thanks,
> 
> Jiang Yan Xu
> 
>


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Ben Mahler <be...@gmail.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/#review40719
-----------------------------------------------------------



src/zookeeper/group.cpp
<https://reviews.apache.org/r/20470/#comment73851>

    Another question here:
    
    This says we can be in CONNECTING, and then we immediately call sync(). sync() will fail a CHECK if in state CONNECTING?


- Ben Mahler


On April 17, 2014, 11:53 p.m., Jiang Yan Xu wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/20470/
> -----------------------------------------------------------
> 
> (Updated April 17, 2014, 11:53 p.m.)
> 
> 
> Review request for mesos and Ben Mahler.
> 
> 
> Bugs: MESOS-1214
>     https://issues.apache.org/jira/browse/MESOS-1214
> 
> 
> Repository: mesos-git
> 
> 
> Description
> -------
> 
> - Retry can be invoked when the Group is in any state but DISCONNECTED.
> 
> 
> Diffs
> -----
> 
>   src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 
> 
> Diff: https://reviews.apache.org/r/20470/diff/
> 
> 
> Testing
> -------
> 
> make check.
> 
> 
> Thanks,
> 
> Jiang Yan Xu
> 
>


Re: Review Request 20470: Fixed an incorrect CHECK in Group.

Posted by Jiang Yan Xu <ya...@jxu.me>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/20470/
-----------------------------------------------------------

(Updated April 17, 2014, 4:53 p.m.)


Review request for mesos and Ben Mahler.


Changes
-------

Grammer... NNRF


Bugs: MESOS-1214
    https://issues.apache.org/jira/browse/MESOS-1214


Repository: mesos-git


Description
-------

- Retry can be invoked when the Group is in any state but DISCONNECTED.


Diffs (updated)
-----

  src/zookeeper/group.cpp cff59976259499ea03db8f35cb2b40674b5e4b53 

Diff: https://reviews.apache.org/r/20470/diff/


Testing
-------

make check.


Thanks,

Jiang Yan Xu