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From Myrna van Lunteren <m.v.lunte...@gmail.com>
Subject Re: [jira] Created: (DERBY-758) CachedPage.readPage() can loop forever on insane builds if the read from the container keep failing with IO Exceptions.
Date Thu, 15 Dec 2005 14:14:08 GMT
On 12/15/05, Knut Anders Hatlen <Knut.Hatlen@sun.com> wrote:
>
> "Suresh Thalamati (JIRA)" <derby-dev@db.apache.org> writes:
>
> > CachedPage.readPage() can loop forever on insane builds if  the read
> from the container keep failing with  IO Exceptions.
> >
> --------------------------------------------------------------------------------------------------------------------------
> >
> >          Key: DERBY-758
> >          URL: http://issues.apache.org/jira/browse/DERBY-758
> >      Project: Derby
> >         Type: Bug
> >   Components: Store
> >     Reporter: Suresh Thalamati
> >
> >
> > org.apache.derby.impl.store.raw.data.CachedPage.readPage() loops
> > forever if read from the container keeps failing with an
> > IOException.  On debug build it marks the system as corrupt , but in
> > non-debug builds it just keeps retrying to read the page from the
> > disk.
>
> I saw this problem when I tested IBM's new 1.5 JVM on Linux. For some
> reason, the VM starts throwing IOExceptions when I try to access a
> relatively large table:
>
> java.io.IOException: Invalid argument
>        at java.io.RandomAccessFile.seek(Native Method)
>        at org.apache.derby.impl.store.raw.data.RAFContainer.readPage(
> RAFContainer.java:198)
>        ....
>
> In insane mode Derby just loops forever without printing any messages,
> as Suresh described.
>
> I do not see this problem on Sun JVM 1.4.2/1.5.0 or IBM JVM
> 1.4.2. Does anyone know why I get the exception on that platform?
>
> --
> Knut Anders
>
>
Out of curiosity - if you can reproduce this at will - can you also
reproduce it with the jit switched off?

Myrna

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