RE: [mylar-dev] 1.0.0 preview builds

["Mik Kersten" <beatmik@xxxxxxx>]

Thanks, that's the kind of info I was after.

What seems most likely to me for both your and Willian's case is that a
connector or two were uninstalled or disabled, but the Task List feature was
not, and then the workbench was restarted.  This will happen if you click
"OK" on the Update Manager's prompt to restart the workbench after modifying
the configuration.  Then the workbench restarted without the connector, and
the queries were lost because the connector was not present to read them
(since we only preserve orphaned tasks and contexts).  

I'm going to update the FAQ to make it very clear how to avoid this
situation, and how to recover from it (via restore) if it happens.  I also
added this bug which will gracefully handle this scenario:

167359: support restore of queries orphaned by missing connectors
https://bugs.eclipse.org/bugs/show_bug.cgi?id=167359

Mik

> -----Original Message-----
> From: mylar-dev-bounces@xxxxxxxxxxx [mailto:mylar-dev-bounces@xxxxxxxxxxx]
> On Behalf Of Eugene Kuleshov
> Sent: Saturday, December 09, 2006 9:53 AM
> To: Mylar developer discussions
> Subject: Re: [mylar-dev] 1.0.0 preview builds
> 
> 
>   The only unusual thing about my scenario is that I uninstalled Mylar
> several times using update manager. So, after some restarts, there was
> no Mylar installed. Then at some point after installing Mylar next time,
> task list had only web queries. Nothing was in the log, all connectors
> were there and I was able to restore from last backup file.
> 
>   regards,
>   Eugene
> 
> 
> Mik Kersten wrote:
> > Rob and I looked over this thoroughly when testing and tried to break in
> > several ways but could not reproduce.  My message to Willian on this is
> > below.  This almost certainly means that a connector did not install or
> > start, or that your Task List data directory ended up pointing at the
> wrong
> > place.  Possible causes:
> > * Some *really* old version of Mylar started.  I have test workspaces
> with
> > old versions that go way back and did not notice this failure.
> > * One of the connectors did not download.
> >
> > Eugene, Willian: if you can provide any information indicating other
> > potential causes of failure please post in case we need to investigate
> this
> > further.  The only other thing I can imagine is weird externalization
> > failures in the web connector since you guys use it and it is not as
> well
> > covered in the test suite or manual tests, but that seems unlikely.
> >
> > Rob: we currently only preserve 'orphaned' tasks for which an
> externalizer
> > was not found, post 1.0 let's do the same thing for queries to avoid
> people
> > having to do a restore in this scenario.
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