Re: [Wb-discuss] bad block number error

[Aubrey Jaffer]

 | From: Aubrey Jaffer <address@hidden>
 | Date: Wed, 02 Dec 2009 16:55:46 -0500 (EST)
 | 
 |  | Date: Tue, 24 Nov 2009 15:24:30 +0100
 |  | From: Floris Ouwendijk <address@hidden>
 |  | 
 |  | I'm working on an Java application for which I'd like to use WB
 |  | to store a mapping from a 10 byte key to a 20 byte value.  When
 |  | running some tests I ran into the following error:
 |  | >>>>ERROR<<<< bad block number 8:272129 (>= 1347)
 |  | The key is essentially a number, stored with the 8 bytes in
 |  | little endian order, followed by another 2 byte number. In the
 |  | test I sequentially store numbers, starting from zero, and the
 |  | error occurs (consistently) when storing a few tens of thousands
 |  | values.
 |  | 
 |  | Some snippets:
 |  |         Ents.initWb(12, 100, 4096);

My regression suite doesn't exercise the minimum-number-of-ents limit.
Could you send me a small program which fails with
Ents.initWb(12, 100, 4096)?

 | The first argument to initWb() should be much larger.  Try:
 | 
 |   Ents.initWb(100, 100, 4096);
 | 
 | or
 | 
 |   Ents.initWb(1000, 1000, 4096);
 | 
 | These will allocate about 400.kB or 4.MB for buffers, respectively.