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Lost In The Clouds
1.
Lost in the
Clouds An example of a schemaless database application in the cloud SlipstreamUSA :: March 25, 2009
2.
3.
4.
5.
90,000 registered users
6.
7.
Flikr
8.
OpenCycleMap.org
9.
OpenPisteMap.org
10.
YourNavigation.org
11.
Mobile devices ©
Constantin Litvak
12.
Coverage CC-BY-SA 2.0
© OpenStreetMap
13.
14.
MySQL
15.
Ways: 24,956,171
16.
Nodes: 305,956,583
17.
18.
name=Broadway
19.
foo=bar CC-BY-SA 2.0
Image © Ojw Data © OpenStreetMap
20.
21.
22.
Daily / Hourly
/ Minutely
23.
One file per
minute (~30Kb compressed) CC-BY-SA 2.0 Image © Ojw Data © OpenStreetMap
24.
25.
Want to be
able to query the data in bigger chunks and to do it more selectively
26.
Solution
27.
Cloud based schemaless
database with simple to use query interface and lots of indexes CC-BY-SA 2.0 Image © Maning Sambale Data © OpenStreetMap
28.
29.
30.
Node tags: 115Gb
31.
Node indexes: 70Gb
32.
Ways: 21Gb
33.
Way tags: 10Gb
34.
35.
Licensed as AGPL
CC-BY-SA 2.0 Image © Maning Sambale Data © OpenStreetMap
36.
37.
Queries of up
to 100 ² degrees
38.
Query by tags
and tag values
39.
Scaleable
40.
41.
Import minute diff
CC-BY-SA 2.0 Image © Ojw Data © OpenStreetMap
42.
43.
XAPI Service ^way(27016525)="adaabcdcabaadab"
^way(27016525,1)=296138118 ^way(27016525,2)=296138119 ^way(27016525,3)=296138120 ^way(27016525,4)=296138121 ^way(27016525,5)=296138118 ^waytag(27016525,"addr:housenumber")=2 ^waytag(27016525,"building")="yes" ^wayx("building","*","adaabcdcabaadab",27016525)="" ^wayx("building","*","adaabcdcabaadab",27028298)="" ^wayx("building","*","adaabcdcabaadab",27028299)="" ^wayx("building","*","adaabcdcabaadab",27028326)="" ^wayx("building","*","adaabcdcabaadab",27028327)="" ^wayx("building","*","adaabcdcabaadab",27035972)="" ^wayx("building","*","adaabcdcabaadab",27035973)="" ^wayx("building","*","adaabcdcabaadab",27035974)="" ^wayx("building","*","adaabcdcabaadab",27035975)="" ^wayx("building","*","adaabcdcabaadab",27035984)="“ <way id='27016525'> <nd ref='296138118'/> <nd ref='296138119'/> <nd ref='296138120'/> <nd ref='296138121'/> <nd ref='296138118'/> <tag k='addr:housenumber' v='2'/> <tag k='building' v='yes'/> </way>
44.
45.
Paris
46.
San Diego
47.
Zurich
48.
49.
300Gb disk storage
CC-BY-SA 2.0 Image © Nikolaj Data © OpenStreetMap
50.
Wikipedia: Query to
Map {{osm-query |way=name=Arizona Canal}} CC-BY-SA 2.0 © OpenStreetMap
51.
52.
Apache web-server
53.
54.
55.
56.
More Xpath-like queries
57.
JSON output
58.
Generic indexing service
59.
More servers
60.
Thank you Thank
you Questions? CC-BY-SA 2.0 Image © ITO! Data © OpenStreetMap