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https://issues.apache.org/jira/browse/THRIFT-599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anthony Molinaro updated THRIFT-599:
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Attachment: thrift-599.patch
Okay, this one applies without having to do a move. However, you should run
with 'patch -E -p0 < thrift-599.patch'
in the trunk directory so it deletes empty files.
Then you'll need to
% svn remove test/erl/src/test_tether.erl \
lib/erl/src/test_service.erl \
lib/erl/src/test_handler.erl
% svn add test/erl/src/test_client.erl \
lib/erl/include/thrift_transport_behaviour.hrl \
lib/erl/include/thrift_protocol_behaviour.hrl \
lib/erl/src/thrift_transport_state_test.erl \
lib/erl/src/thrift_client_util.erl
One should also not that this is not a backwards compatible change, but I think
that's okay as long as it's pointed out somewhere in some release notes.
> Don't use unnecessary processes in the Erlang transports and clients
> --------------------------------------------------------------------
>
> Key: THRIFT-599
> URL: https://issues.apache.org/jira/browse/THRIFT-599
> Project: Thrift
> Issue Type: Improvement
> Components: Library (Erlang)
> Reporter: David Reiss
> Attachments: erlang-refactor-v1.patch, thrift-599.patch
>
>
> The Erlang library currently spawns a process for every buffered/framed/http
> transport and every client. These processes can be eliminated by by making
> client, protocol, and transport operations work like operations on Erlang's
> persistent data structures (like dict): every mutating call returns the new
> version of the object. This has four benefits.
> - Easier debugging: single stepping into a gen_server:call is very difficult.
> - Better error messages: problems that occur during Thrift operations are
> localized to a single process, providing a better stack trace and eliminating
> uninformative crash reports.
> - More measurable performance: time spent in Thrift client operations will
> show up in etop under the process making the call, rather than in a transient
> client or transport process.
> - Better performance: I haven't actually measured this, but I'm pretty sure
> that eliminating the extra spawns and messages will speed things up.
> The only user-visible changes are to the client. Every thrift call now
> returns {NewClient, Result} instead of just Result.
> I'm attaching a big monolithic patch, but a fairly readable chronology of my
> changes is at
> <http://gitweb.thrift-rpc.org/?p=thrift.git;a=log;h=refs/heads/pri/dreiss/erl-refactor;hb=HEAD>.
> I'm open to opinions as to whether this should be committed as one rev or
> many.
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