On 07/20/2012 08:45 PM, datendelphin wrote:
On 18.07.2012 00:17, Gabriel Rossetti wrote:
/opt/Nominatim/osm2pgsql/osm2pgsql -lsc -O gazetteer --hstore -C 84
-d nominatim /home/ubuntu/tmp/switzerland.osm.bz2
Using projection SRS 4326 (Latlong)
NOTICE: table "place" does not exist, skipping
NOTICE: type "keyvalue" does not exist, skipping
NOTICE: type "wordscore" does not exist, skipping
NOTICE: type "stringlanguagetype" does not exist, skipping
NOTICE: type "keyvaluetype" does not exist, skipping
NOTICE: function get_connected_ways(pg_catalog.int4[]) does not
exist, skipping
Allocating memory for dense node cache
Allocating dense node cache in one big chunk
Allocating memory for sparse node cache
Sharing dense sparse
Node-cache: cache=84MB, maxblocks=10753*8192, allocation method=11
Mid: pgsql, scale=10000000 cache=84
Setting up table: planet_osm_nodes
NOTICE: table "planet_osm_nodes" does not exist, skipping
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index
"planet_osm_nodes_pkey" for table "planet_osm_nodes"
Setting up table: planet_osm_ways
NOTICE: table "planet_osm_ways" does not exist, skipping
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index
"planet_osm_ways_pkey" for table "planet_osm_ways"
Setting up table: planet_osm_rels
NOTICE: table "planet_osm_rels" does not exist, skipping
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index
"planet_osm_rels_pkey" for table "planet_osm_rels"
Reading in file: /home/ubuntu/tmp/switzerland.osm.bz2
Segmentation fault (core dumped)
ERROR: DB Error: no such table
DB Error: no such table
Hi
So the problem above arises from a failed allocation. Osm2pgsql
allocates 1GB of memory (hard coded, see node-ram-cache.c:390) which
is not checked if the allocation succeeded.
So that means for you: this ec2 instance has just too few memory (only
600MB in total in the micro incarnation). There is the osm2pgsql
option --cache-strategy sparse, with which it works. But that is not
supported with the setup.php script (you could easily add this option
in setup.php on line 129, if you want to use it on the tiny ec2)
And I certainly can not recommend running nominatim on Amazons cloud
computing. Nominatim is too demanding with I/O and caching and all to
run on that infrastructure.
Hope that explains it for you, even if it won't help you too much.
Datendelphin
Hi Datendelphin,
Thanks for looking into this. I see, I was using the Tiny version of
their VMs since they are free, so that I can test and dev on them
without being charged an arm and a leg. I will take into account what
you said and see if I can find something else, is there any cloud
service you would recommend for this? Again, than you for looking into
this and finding the issue.
Thanks,
Gabriel
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