[kudu-CR] Add request id and sequence number to the rpc request header

["David Ribeiro Alves (Code Review)" <ge...@cloudera.org>]

David Ribeiro Alves has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/3079

Change subject: Add request id and sequence number to the rpc request header
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Add request id and sequence number to the rpc request header

This adds a new (optional) field to RpcHeader: RequestIdPB.

This new field contains the information necessary to implement the "replay cache"
component, including the unique id of the client and the rpc's sequence number.
RequestIdPB also includes two additional "helper" fields, one to keep track of
number of attempts of a particular rpc, so that we can skip the replay cache
altogether in certain cases and one to let the server know that it can garbage
collect completion records.

Change-Id: I30b07f070f8e80aaad982ccfe71ffb7e22a6a703
---
M src/kudu/rpc/rpc_header.proto
1 file changed, 20 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/79/3079/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I30b07f070f8e80aaad982ccfe71ffb7e22a6a703
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: David Ribeiro Alves <da...@cloudera.com>