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From: "Gav..." <gavin@16degrees.com.au>
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Subject: RE: buildbot failure in ASF Buildbot on tomcat-trunk
Date: Thu, 11 Feb 2010 12:14:29 +1000
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> -----Original Message-----
> From: Konstantin Kolinko [mailto:knst.kolinko@gmail.com]
> Sent: Wednesday, 10 February 2010 10:36 PM
> To: Tomcat Developers List
> Cc: builds@apache.org
> Subject: Re: buildbot failure in ASF Buildbot on tomcat-trunk
>=20
> 2010/2/10 Gav... <gavin@16degrees.com.au>:
> >
> >
> >> -----Original Message-----
> >> From: Mark Thomas [mailto:markt@apache.org]
> >> Sent: Tuesday, 9 February 2010 8:27 PM
> >> To: Tomcat Developers List
> >> Cc: builds@apache.org
> >> Subject: Re: buildbot failure in ASF Buildbot on tomcat-trunk
> >>
> >> On 09/02/2010 10:25, buildbot@apache.org wrote:
> >> > The Buildbot has detected a new failure of tomcat-trunk on ASF
> >> Buildbot.
> >> > Full details are available at:
> >> > =A0http://ci.apache.org/builders/tomcat-trunk/builds/83
> >> >
> >> > Buildbot URL: http://ci.apache.org/
> >> >
> >> > Buildslave for this Build: bb-vm_ubuntu
> >> >
> >> > Build Reason:
> >> > Build Source Stamp: [branch tomcat/trunk] 907983
> >> > Blamelist: markt
> >> >
> >> > BUILD FAILED: failed compile
> >>
> >> The Eclipse download takes forever which seems to be the root cause
> of
> >> a
> >> number of these failures. Could the build property "jdt.home" be =
set
> to
> >> somewhere that isn't deleted on every ci build? That should speed =
up
> >> the
> >> build process considerably - as well as not downloading a 25MB file
> >> from
> >> archive.eclipse.org every time we build.
> >
> > Actually, I haven=92t set that property at all that I know of.
> > In Buildbot it can be added as a property at build time so it's no
> problem.
> >
> > Shall I go ahead and do that?
> >
> > What value should it be, empty?
> >
> > Gav...
> >
>=20
> Not jdt.home, but base.path I think.
>=20
> The "base.path" property points to a location, where all dependent
> libraries are downloaded from the net.
>=20
> The default value of it is
> base.path=3D/usr/share/java
> and as I see from stdio output from buildbot, there it is set to
> /home/buildslave3/slave3/tomcat-trunk/build/basepath/
>=20
> The problem is that all those dependencies are deleted before each run
> and are redownloaded, which wastes time and, with a 40 MB download
> from eclipse.org, resulted in intermittent failures.
>=20
> Can we avoid deleting those files between runs?
>=20
>=20
> In the meanwhile,  yesterday I changed dependencies in tomcat-trunk,
> and now we are downloading a 1.6 MB file instead of 40 MB one. So, the
> problem will be less noticeable for trunk now, but will still present
> for "tomcat-6-trunk", where this change is not implemented yet.
>=20
>=20
> The "tomcat-6-trunk" buildbot apparently has the same value of
> "base.path" as the "tomcat-trunk" one. That is, it reuses libraries
> downloaded by "tomcat-trunk" on its previous run. Thus it was more
> rare to see errors coming from it.

ah, ok thanks for the explanations.

With builds, I prefer to keep the rest of the file system clean wherever
possible, so over-riding base path was my solution. I can see that =
having
it in the build dir can cause problems so I've just moved it one level
above the main build dir so it doesn=92t get clobbered each run, but is =
still
within the tomcat-trunk and tomcat-6-trunk directory structure.

Thanks

Gav...

>=20
>=20
> Best regards,
> Konstantin Kolinko


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