Arun C Murthy
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[HADOOP-13438] Optimize IPC server protobuf decoding
...The current use of the protobuf API uses an expensive code path. The builder uses the parser to instantiate a message, then copies the message into the builder. The parser is cre...
, 2017-01-06, 23:51
[HADOOP-12483] Maintain wrapped SASL ordering for postponed IPC responses
...A SASL encryption algorithm (wrapping) may have a required ordering for encrypted responses. The IPC layer encrypts when the response is set based on the assumption it is being immedia...
, 2016-11-02, 05:59
[HADOOP-10300] Allowed deferred sending of call responses
...RPC handlers currently do not return until the RPC call completes and response is sent, or a partially sent response has been queued for the responder. It would be useful for a proxy m...
, 2016-11-02, 05:25
[HADOOP-13537] Support external calls in the RPC call queue
...Leveraging HADOOP-13465 will allow non-rpc calls to be added to the call queue. This is intended to support routing webhdfs calls through the call queue to provide a unified and protoc...
, 2016-09-29, 20:57
[HADOOP-13425] IPC layer optimizations
...Umbrella jira for y! optimizations to reduce object allocations, more efficiently use protobuf APIs, unified ipc and webhdfs callq to enable QoS, etc....
, 2016-09-09, 22:31
[HADOOP-10940] RPC client does no bounds checking of responses
...The rpc client does no bounds checking of server responses. In the case of communicating with an older and incompatible RPC, this may lead to OOM issues and leaking of resources....
, 2016-09-09, 15:59
[HADOOP-13549] Eliminate intermediate buffer for server-side PB encoding
...HADOOP-13426 improved encoding and added framed buffers. Upon further review, the intermediate response buffer is completely unnecessary for PB responses since the size can be pre-comp...
, 2016-09-06, 15:21
[HADOOP-13547] Optimize IPC client protobuf decoding
...Counterpart to HADOOP-13438....
, 2016-09-02, 16:19
[HADOOP-13465] Design Server.Call to be extensible for unified call queue
...The RPC layer supports QoS but other protocols, ex. webhdfs, are completely unconstrained. Generalizing Server.Call to be extensible with simple changes to the handlers will enable uni...
, 2016-09-01, 21:24
[HADOOP-13426] More efficiently build IPC responses
...The call response buffer is allowed to dynamically grow until a max size is reached. Often times the full size of the response can be known in advance which avoids copies. This i...
, 2016-09-01, 21:16
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