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From Myrna van Lunteren <m.v.lunte...@gmail.com>
Subject Re: [jira] Commented: (DERBY-943) nightly test regression in sycat test only on ibm142 jvm
Date Sat, 11 Feb 2006 16:01:07 GMT
On 2/11/06, Daniel John Debrunner <djd@apache.org> wrote:

> Myrna van Lunteren wrote:
>
> > I could use some help on this one.
> > The problem does *not* occur with jdk14, ibm15, jdk15.
> > The problem only occurs with jars - I've been using insane jars.
> >
> > The reason I changed the database name was to enable this test to be run
> > in the remote host configuration. In that setup, the test would be run
> > after several other tests, and there were too many things left behind to
> > get a clear result.
> >
> > I got past the java.security.AccessControlException by granting to
> > derbynet.jar:
> >   permission java.io.FilePermission
> > "${derby.system.home}${/}syscatdb${/}tmp${/}-", "read, write, delete";
> >
> > So, is this a jvm bug or another privileged block needed somewhere in
> > derby code only accessed with ibm142?
> >
> > If privileged block, how does one find out where? (this may seem obvious
> > to other people, or even to me at some other time. it's late, or,
> > rather, early).
> >
> > Or is this the same issue as DERBY-616? That one doesn't say it's only
> > with ibm142...
>
> I think you are correct here, it looks like 616. Since this is most
> likely an ORDER BY spilling to disk, it is environment dependent when
> that occurs. It's probably that this test is on the border line for
> spilling the sort to disk and only ibm142 crosses it.
>
> I would just disable this test from running with the security manager
> and mark it as due to DERBY-616.
>
> Dan.
>
>
>
Well, that was one of the things that first puzzled me - Mike reported this
with DerbyNet, and none of the DerbyNet tests actually run with security
manager.
However, the network server seems to *always* start with security manager,
even when the actual test has security manager switched off. I'll have a
look at that also.
(pf).
In the mean time, would it be acceptable to add the permissions so the
nightlies pass on?

Thx,
Myrna

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