Hi Mateusz,
Are you using the default hypertable.cfg file or did you make custom
modifications. This error will occur if the CellStoreScanner encounters a
CellStore block whose size is larger than the amount of memory dedicated to
the block cache. Did you tweak either of the following two properties:
Hypertable.RangeServer.BlockCache.MaxMemory
Hypertable.RangeServer.CellStore.DefaultBlockSize
Or is it possible, that you have inserted an object that compressed is
larger than 200MB? If this is a possibility, then do the following:
1. Modify the HT_FATALF statement on line 372 of CellStoreScannerV0.cc to be
this:
HT_FATALF("Problem checking out block from cache file=%s
file_id=%d, "
"offset=%u", m_cell_store_ptr->get_filename().c_str(),
m_file_id, m_block.offset);
Then re-run your test and when it crashes again, it will print out the name
of the offending CellStore. Then you can run the following command:
~/hypertable/0.9.2.2/bin/csdump <name-of-cellstore>
This will dump out the block index of the cell store. See if there are any
blocks whose size is larger than your configured BlockCache (200MB by
default).
- Doug
On Fri, Mar 6, 2009 at 4:07 PM, Mateusz Berezecki <[email protected]>wrote:
>
> Hi,
>
> I'm again seeing this problem that I've experienced on 0.9.2.1:
>
> 1236384164 FATAL Hypertable.RangeServer :
>
> (/home/mateusz/hypertable/src/cc/Hypertable/RangeServer/CellStoreScannerV0.cc:372)
> Problem checking out block from cache file_id=29, offset=24492939
>
> What I am doing is a TFIDF over a text corpus using Hypertable as a
> backend. I'm doing cross table lookups, ie. looking up one value in
> table A and using it as a key for table B. I think I might be
> hammering the database too heavily, but who knows, maybe there in fact
> is some problem?
>
> My setup is: 4 cpu xeon, 4gb ram, 60gb sata disk with hypertable
> 0.9.2.2 with local broker. Did anyone encounter this behavior?
>
> Mateusz
>
> >
>
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