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https://issues.apache.org/jira/browse/THRIFT-110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623148#action_12623148
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Noble Paul commented on THRIFT-110:
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bq.I am not sure this is going to change. In C++, lists are implemented as
vectors of objects, not object references. Can you provide some concrete cases
where this has been an absolute requirement?
Solr response is a composed fully of collection objects (no custom objects) .
So we mix and match various collection objects . Moreover , it is not a good
idea to have a limit in the protocol what is allowed by the API.
bq.Sounds interesting. This generally wouldn't be that interesting for small
RPC messages but I can see other use cases where it would be.
again from Solr. We write everything as name and value where names may be small
but repeated . so the response is string intensive .actually good string
Serialization/DeSerialization performance is our main requirement
Moreover as protocol buffers is out as open source, users will definitely
compare the pros/cons .
> A more compact format
> ----------------------
>
> Key: THRIFT-110
> URL: https://issues.apache.org/jira/browse/THRIFT-110
> Project: Thrift
> Issue Type: Improvement
> Reporter: Noble Paul
>
> Thrift is not very compact in writing out data as (say protobuf) . It does
> not have the concept of variable length integers and various other
> optimizations possible . In Solr we use a lot of such optimizations to make a
> very compact payload. Thrift has a lot common with that format.
> It is all done in a single class
> http://svn.apache.org/viewvc/lucene/solr/trunk/src/java/org/apache/solr/common/util/NamedListCodec.java?revision=685640&view=markup
> The other optimizations include writing type/value in same byte, very fast
> writes of Strings, externalizable strings etc
> We could use a thrift format for non-java clients and I would like to see it
> as compact as the current java version
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