[kudu-CR] WIP: KUDU-1380. Fix retry for BUSY on non-FT scans

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Todd Lipcon has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/2654

Change subject: WIP: KUDU-1380. Fix retry for BUSY on non-FT scans
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WIP: KUDU-1380. Fix retry for BUSY on non-FT scans

cleans up some of the error handling on scans to make it a bit easier
to follow, and seems to fix the bug in a simple test i wrote. more work
to be done to make this less spaghetti.

Change-Id: I048d3aa2a163143d1637ae87281ed91f0fc5ac65
---
M src/kudu/client/client-test.cc
M src/kudu/client/client.cc
M src/kudu/client/scanner-internal.cc
M src/kudu/client/scanner-internal.h
4 files changed, 227 insertions(+), 163 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/54/2654/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I048d3aa2a163143d1637ae87281ed91f0fc5ac65
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>