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Posted to dev@esme.apache.org by Ethan Jewett <es...@gmail.com> on 2009/01/27 03:14:47 UTC

RSS actions - possible bug when changing contents of feed

Hi all,

Not sure if this is the right forum, but I was very excited to get an RSS
pull of my Twitter feed set up on Richard Hirsh's Stax deployment (
http://esmecloudserverapache.dickhirsch.staxapps.net/) of the latest ESME
code.  Actions could be the killer feature of ESME.  But I'm getting ahead
of myself.

I did a little bit of refinement of the original Yahoo Pipe I was using and
went back later in the day to see how it was working, and it had stopped
working entirely.

I wondered if changing the existing values in the RSS feed that was already
set up as an action might have broken the RSS pull mechanism, so I set up
another action with the same feed, thinking that might reset things and get
me going again.  No such luck.

I then thought there might be something wrong with the structure of my new
feed.  So I set up another pipe that was exactly the same as the original
one and just now set up an action for that.  Still no luck.

At this point I'm wondering if some supporting batch program might have
crashed on the ESME stax deployment.  If so, I'm wondering if it crashed
because of the change in the feed.  This would probably be a bug, but I'd
like to confirm before I create a JIRA ticket.

Thanks,
Ethan

Re: RSS actions - possible bug when changing contents of feed

Posted by Vassil Dichev <vd...@apache.org>.

>> Credit goes to Vassil - I'm just the bearer of good news. :->
> I haven't yet found a definite connection between the Scala bug and
> the feed scenario on ESME (couldn't reproduce it in simpler cases);
> and I'm not sure it's good news :)

Now I know it's good news, because the bug has been fixed 3 days ago
in Scala 2.8 and 2.7.x. I did some tests today and couldn't reproduce
the problem for a couple of hours, whereas before it occurred within
10-15 minutes.

Replace scala.version in pom.xml from 2.7.3 to 2.7.3-SNAPSHOT for now
to test it.

Re: Memory leak?

Posted by David Pollak <fe...@gmail.com>.

There may be a memory leak.
I'm seeing memory leaks on Lift 0.10 based sites.  I'm hoping to track them
down very soon... but between the book and the ESME sprint that ends this
week... it won't likely happen this week. :-(

On Mon, Feb 2, 2009 at 12:57 AM, Hirsch, Richard <richard.hirsch@siemens.com
> wrote:

> Do we have a memory leak somewhere?
>
> Take a look at the process memory at the stax site. There are no TCP
> connections but process memory keeps on increasing.
>
> D.
>
>
>
>
>

-- 
Lift, the simply functional web framework http://liftweb.net
Beginning Scala http://www.apress.com/book/view/1430219890
Follow me: http://twitter.com/dpp
Git some: http://github.com/dpp

Re: Memory leak?

Posted by Bertrand Delacretaz <bd...@apache.org>.

On Mon, Feb 2, 2009 at 10:18 AM, Hirsch, Richard
<ri...@siemens.com> wrote:
> Here is the screenshot (http://esmeproject.googlecode.com/files/stax%20memory.jpg)  since apache mailing lists don't allow attachments.

Some attachments are allowed on our lists, though I'm not sure about
the exact rules. http://markmail.org/message/oyifjsatt3oicspo for
example attaches at PDF document.

-Bertrand