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https://issues.apache.org/jira/browse/AVRO-1177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doug Cutting updated AVRO-1177:
-------------------------------
Fix Version/s: 1.7.3
Status: Patch Available (was: Open)
This passes existing tests for me.
Can someone familiar with Ruby please review it?
Unless someone objects, I'll commit this in a few days.
> IPC interoperability problems with handshake
> --------------------------------------------
>
> Key: AVRO-1177
> URL: https://issues.apache.org/jira/browse/AVRO-1177
> Project: Avro
> Issue Type: Bug
> Components: ruby
> Affects Versions: 1.7.2
> Reporter: Georg Franz
> Assignee: Georg Franz
> Labels: patch
> Fix For: 1.7.3
>
> Attachments: avro_ruby_ipc.diff
>
>
> I tried to get a simple echo service working using Java (client) to Ruby
> (server).
> The service should be called repeatedly in a loop. I tried several things,
> but the best result I got was that it would work once, then raising this
> exception on the ruby side:
> {noformat}lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:46:in `byte!':
> undefined method `unpack' for nil:NilClass (NoMethodError)
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:63:in `read_long'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:380:in `read_union'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:316:in `read_data'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:391:in `block in
> read_record'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:389:in `each'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:389:in `read_record'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:317:in `read_data'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/io.rb:282:in `read'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/ipc.rb:309:in
> `process_handshake'
> from lib/ruby/gems/1.9.1/gems/avro-1.7.2/lib/avro/ipc.rb:253:in `respond'
> {noformat}
> On investigation, I found out that the ruby Responder expects a handshake on
> every request whereas the Java Requestor just sends a handshake the first
> time around.
> I quickly hacked up Ruby support for multiple calls on the same connection
> similar to what the Java code does.
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