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https://issues.apache.org/jira/browse/HBASE-794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12705156#action_12705156
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ryan rawson commented on HBASE-794:
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+1 on protobufs. Generally:
- extremely stable, used extensively within google
- well tested, good test suite, etc.
One small aspect I dislike about Thrift RPC is the inability to return null
objects. This means that the thrift protocol for hbase must throw exceptions
when a key is not found. For clients that dont like that, they have to write
wrappers around the thrift API. I looked into it, the reason is the C++
binding returns objects, not pointers, thus you cannot have a 'null' object.
Obviously the fix it to change the C++ API, but that seems like a bit much
within the context of 'fix HBASE's RPC method'.
We absolutely _require_ a non-versioned RPC protocol. We need to be able to
peacemeal upgrade our clusters. I would like to avoid ever using
bin/stop-hbase.sh moving forward.
> Language neutral IPC as a first class component of HBase architecture
> ---------------------------------------------------------------------
>
> Key: HBASE-794
> URL: https://issues.apache.org/jira/browse/HBASE-794
> Project: Hadoop HBase
> Issue Type: New Feature
> Components: client, ipc, master, regionserver
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Priority: Minor
>
> This issue considers making a language neutral IPC mechanism and wire format
> a first class component of HBase architecture. Clients could talk to the
> master and regionserver using this protocol instead of HRPC at their option.
> Options for language neutral IPC include:
> * Thrift: http://incubator.apache.org/thrift/
> * Protocol buffers: http://code.google.com/p/protobuf/
> * XDR: http://en.wikipedia.org/wiki/External_Data_Representation
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