Hi Ryan, Thanks for the information! I'm developing an erlang application and wanted to write erlang data and run the Riak Search on them by using the riakc. Before doing so, I tried to check how it works by using the HTTP interface, and then got the issue that I asked the question about.
I don't have to stick with the erlang data. So as you advised I will use JSON to avoid any potential issues. Best regards, Takeshi On 2013/01/23, at 14:20, Ryan Zezeski <[email protected]> wrote: > Takeshi, > > The erlang extractors don't work when writing the data via HTTP as they store > the data as a binary. I.e. [{"name", "bob"}] becomes <<"[{\"name\", > \"bob\"}]">> instead of the proplist you expect. This is because the > extractor assumes the object data is already properly decoded. It is > possible to write erlang terms via the erlang client, but I wouldn't > recommend it as it is not the common case and I feel like there are other > issues lurking in Riak if you do this. If there a particular reason you are > trying to store erlang terms? Are you worried about space? I would just > stick with JSON or XML if that is acceptable. > > -Z > > > On Tue, Jan 22, 2013 at 10:15 AM, Takeshi Matsumura <[email protected]> > wrote: > Hi, > > I tried to store erlang data and query them by using the Riak Search without > success so far, and thus would like to ask if I'm doing the right thing. Riak > Search was enabled in the app.config file and the server was restarted. The > pre-commit hook was installed from the command line. > > bin/search-cmd install mybucket > > The erlang data that I uploaded is a proplists with a single pair of key and > value. > > [{"name", "bob"}] > > It was uploaded by using the curl command with Content-Type > "application/x-erlang". (hoge.erl.txt contains the above erlang terms). > > curl -v -d @hoge.erl.txt -X PUT -H "content-type: application/x-erlang" > "http://localhost:8098/riak/mybucket/bob"; > > I could get the document by issuing curl command to "/riak/mybucket/bob". The > HTTP response header contained the correct Content-Type, > "application/x-erlang". > > Then I run the Riak Search from the command line. > > bin/search-cmd search mybucket "name:bob" > > Unfortunately, the result said "Found 0 results". > > As I wondered if this is a problem related to the erlang terms, I tried the > same with a JSON data that is found in the "Indexing and Querying KV Data" > page but setting "application/json" to the Content-type. > > { > "name":"Alyssa P. Hacker", > "bio":"I'm an engineer, making awesome things.", > "favorites":{ > "book":"The Moon is a Harsh Mistress", > "album":"Magical Mystery Tour" > } > } > > Then the Riak Search could find this document with the query "name:Alyssa*". > > According to the "Indexing and Querying KV Data" page of the Riak document, > erlang terms can be queried by using the Riak Search. However, it is unclear > to me if it is enabled by default because the page says XML, JSON, and > plain-text encodings are supported out of the box but it doesn't mention the > erlang terms. > > I followed the "Other Data Encodings" section and set the > "riak_search_kv_erlang_extractor" module, but it didm't change the situation. > > curl -XPUT -H 'content-type: application/json' \ > http://localhost:8098/riak/mybucket \ > -d > '{"props":{"search_extractor":{"mod":"riak_search_kv_erlang_extractor", > "fun":"extract", "arg":"my_arg"}}}' > > I changed the data as follows and uploaded but it didn't help either. > > [{<<"name">>, <<"bob">>}] > > I appreciate any hints for me to go forward. Thank you in advance. > > Best regards, > Takeshi > > > > _______________________________________________ > riak-users mailing list > [email protected] > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com > >
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