[OSM-dev] New full history dump available

Grant Slater openstreetmap at firefishy.com
Wed Aug 4 00:52:21 BST 2010


Well spotted. Different releases of pbzip2 were used. We'll fix this
in future releases. But unlikely to be more frequent then once every 2
months.

/ Grant

On 8/4/10, Erik Johansson <emj at kth.se> wrote:
> On Mon, Aug 2, 2010 at 9:29 PM, Lars Francke <lars.francke at gmail.com> wrote:
>> Hi guys,
>>
>> Matt Amos was so nice to run the history export again.
>> The result is available here:
>> http://planet.openstreetmap.org/full-experimental/full-planet-100801.osm.bz2
>> and it's grown from 13 GB in February to 17 GB. The regular planet has
>> grown from 8 to 10 GB in the same time.
>>
>> Have fun and it would always be interesting to know if you're using
>> it, having problems with it and what you're using it for.
>>
>
> This is a non issue, but interesting.
>
> I ran bzip2recover on it and every two bz2 blocks are just ~100bytes..
> I'm guessing this is an artifact  from parallel bzip2, but that it
> could be so extreme was new to me.
>
> Size in bytes for bz2 blocks in full planet history file:
> 36972 rec00614fullplanet.bz2
> 152  rec00615fullplanet.bz2
>
> This is from the ordinary planet dump:
> 107188  rec00025plane.bz2
> 32877  rec00026planet.bz2
>
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