Re: bad file descriptor on store.Area.getArea()

I take it you are using the com.mckoi.store package directly and this 
isn't part of an error when using Mckoi SQL?  The 'com.mckoi.store' 
package acts as a cache between the data and the file system, and the 
error appears to be happening when a page from the file is read from the 
file system into memory.  Do you think the file might have been closed, 
or deleted?

Toby.

Smriti Rajan wrote:

> Hi Toby,
> 
> java IO Exception:Bad File descriptor, gets
> sporadically thrown when I try to read from store.Area
>  --> store.Area.getArea(buffer, 0, pos)
> 
> "Sporadically" : the read is in a loop. It is called
> at different 'positions' on the same file, some
> iterations on the loop it works, and some it doesnt.
> File does not seem to be corrupted.
> 
> Any pointers on why this could be happening ?
> 
> Error trace attached below.
> 
> Thanks,
> Smriti
> 
> -----------
> java.io.IOException: Bad file descriptor
>         at java.io.RandomAccessFile.seek(Native
> Method)
>         at
> mckoi.store.IOBufferedFile$IOPageBuffer.initImpl(IOBufferedFile.java:79)
>         at
> mckoi.store.PageBuffer.initialize(PageBuffer.java:184)
>         at
> mckoi.store.AbstractBufferedFile.readByteArray(AbstractBufferedFile.java:230)
>         at
> mckoi.store.ScatteringFileStore.readByteArrayFrom(ScatteringFileStore.java:324)
>         at
> mckoi.store.AbstractStore$StoreArea.<init>(AbstractStore.java:1546)
>         at
> mckoi.store.AbstractStore.getArea(AbstractStore.java:1414)



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