[OSM-dev] Slow Osmosis
Andreas Kalsch
andreaskalsch at gmx.de
Sun Nov 30 12:03:26 GMT 2008
What I will try now:
1) combine("There is another approach. ALTER all InnoDb tables to
MyISAM, run
osmosis and then ALTER them back to InnoDb.
It seems that the INSERT approach scales badly to large InnoDb tables.
Sincerely,
Joachim
", "It scales always bad; no exceptions. Some advise on the DB techies
even include to drop any primary and foreign keys (including sequences)
at inserting. That is optimal.
Stefan", "If you are at it, and have a multi processor:
http://compression.ca/pbzip2/
Stefan")
If this is still slow, I will try
2) the raw file approach
Thank you for your help! I will send you the results.
Andi
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