riak search and basic write operations

kamiseq kamiseq at gmail.com
Wed Oct 3 18:24:46 EDT 2012


I found out why I couldn't read objects via rest client. my key
contained # and it was probably mapped to different char by pbclient,
when replaced # with _ everything works fine.

how can I force charset using pbclient, what is the default?

pozdrawiam
Paweł Kamiński

kamiseq at gmail.com
pkaminski.prv at gmail.com
______________________


On 3 October 2012 18:24, kamiseq <kamiseq at gmail.com> wrote:
> ok,
> I admit that somehow I didn't catch at first that example shows second
> index usage - so thanks for pointing this out.
>
> what about questions 1,4,5??
>
> pozdrawiam
> Paweł Kamiński
>
> kamiseq at gmail.com
> pkaminski.prv at gmail.com
> ______________________
>
>
> On 3 October 2012 00:24, Brian Roach <roach at basho.com> wrote:
>> Greetings!
>>
>> First and foremost, search and secondary indexes (2i) are not the same thing.
>>
>> You need to enable 2i and use the ELevelDB backend as described here:
>> http://wiki.basho.com/Secondary-Indexes---Configuration-and-Examples.html
>>
>> Secondly, the default Converter (JSONConverter) in the Java client
>> does support serializing/deserializing of secondary indexes. The page
>> you link to in the cookbook is demonstrating how to write your own
>> custom converter (for something other than JSON), and its first
>> example does not support them.
>>
>> Enable 2i in Riak, annotate your POJO as you have, and use the default
>> Converter and you should be fine; nothing else is needed.
>>
>> On Tue, Oct 2, 2012 at 4:03 PM, kamiseq <kamiseq at gmail.com> wrote:
>>> hej I am a bit confused about search functionality and basic
>>> read/write operations.
>>>
>>> Im using recent (1.0.6) java client and pb cluster riak client. just
>>> for testing Im only using two local machines joined into one cluster.
>>> storing and reading objects works fine  with key(let say I have users
>>> bucket and I generate id from timestamp).
>>>
>>> but
>>> 1. I cannot fetch objects using rest client in firefox after I store
>>> objects using java client (I ll check with curl) but I can query for
>>> keys in bucket (http://192.168.0.121:8098/riak/users/?keys=true&props=false).
>>> 2. I followed https://github.com/basho/riak-java-client/wiki/Using-a-custom-Converter
>>> and I annotated one of the field with @RiakIndex(name = "user_email")
>>> and now I tried to look-up this object with email but I got
>>> Caused by: com.basho.riak.client.RiakException: java.io.IOException:
>>> {"phase":"index","error":"{indexes_not_supported,riak_kv_bitcask_backend}","input":"{cover,[{1370157784997721485815954530671515330927436759040,[1370157784997721485815954530671515330927436759040]}],{<<\"users\">>,{eq,<<\"user_email_bin\">>,<<\"js at gm.com1\">>}}}","type":"result","stack":"[]"}
>>>     at com.basho.riak.client.query.MapReduce.execute(MapReduce.java:80)
>>>     at com.basho.riak.client.raw.pbc.PBClientAdapter.fetchIndex(PBClientAdapter.java:436)
>>>
>>> I ve google a bit and all I could find was this
>>> http://lists.basho.com/pipermail/riak-users_lists.basho.com/2011-September/005749.html
>>> post a year old now. which points out that search needs to be enabled
>>> in app.config file. I changed settings and restarted both machines.
>>> but I keep getting same exception every time.
>>> 3. in same https://github.com/basho/riak-java-client/wiki/Using-a-custom-Converter
>>> tutorial I read that default converter is not marshalling indexes,
>>> links and metadata and it shows how to get and restore those
>>> information back but looking into code for default converter
>>> implementation I could find the same lines of code as in the article
>>>
>>> Map<String, String> usermetaData =
>>> usermetaConverter.getUsermetaData(domainObject);
>>>         RiakIndexes indexes = riakIndexConverter.getIndexes(domainObject);
>>>         Collection<RiakLink> links = riakLinksConverter.getLinks(domainObject);
>>>
>>>         return RiakObjectBuilder.newBuilder(bucket, key)
>>>             .withValue(value)
>>>             .withVClock(vclock)
>>>             .withUsermeta(usermetaData)
>>>             .withIndexes(indexes)
>>>             .withLinks(links)
>>>             .withContentType(Constants.CTYPE_OCTET_STREAM)
>>>             .build();
>>> 4. can I specify data encoding it seems that it is not UTF-8
>>> 5. I also saw in app.config that vnode_vclocks is set to true, so
>>> should I still set clientId on riak client?? I read it will be skipped
>>> anyway now.
>>>
>>> thanks for any comments
>>>
>>> pozdrawiam
>>> Paweł Kamiński
>>>
>>> kamiseq at gmail.com
>>> pkaminski.prv at gmail.com
>>> ______________________
>>>
>>> _______________________________________________
>>> riak-users mailing list
>>> riak-users at lists.basho.com
>>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com




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