Todd Lipcon has submitted this change and it was merged.

Change subject: KUDU-2085. Fix crash when seeking past end of prefix-encoded 
blocks
......................................................................


KUDU-2085. Fix crash when seeking past end of prefix-encoded blocks

This fixes a bug when seeking past the last element of a prefix-encoded
binary block. In very specific circumstances, described in the JIRA,
this would cause a Status::Corruption() to be returned.

Prior to the fix, the updated test would fail pretty reliably when
looped 50-100 times. With the patch, I looped it 1000 times with no
failure.

Change-Id: I1670b2244d586e4920f0603c48f65ed993a3b12b
Reviewed-on: http://gerrit.cloudera.org:8080/7545
Tested-by: Kudu Jenkins
Reviewed-by: David Ribeiro Alves <davidral...@gmail.com>
Reviewed-by: Andrew Wong <aw...@cloudera.com>
(cherry picked from commit d1f53cc323d5d07e79304765fe171f535c1d548a)
Reviewed-on: http://gerrit.cloudera.org:8080/7613
---
M src/kudu/cfile/binary_prefix_block.cc
M src/kudu/cfile/encoding-test.cc
2 files changed, 51 insertions(+), 10 deletions(-)

Approvals:
  David Ribeiro Alves: Looks good to me, approved
  Kudu Jenkins: Verified



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Gerrit-MessageType: merged
Gerrit-Change-Id: I1670b2244d586e4920f0603c48f65ed993a3b12b
Gerrit-PatchSet: 3
Gerrit-Project: kudu
Gerrit-Branch: branch-1.2.x
Gerrit-Owner: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: David Ribeiro Alves <davidral...@gmail.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>

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