David Ribeiro Alves has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/5320

Change subject: KUDU-625 - Make write transctions abort in mvcc, by default
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KUDU-625 - Make write transctions abort in mvcc, by default

This patch addresses a long standing TODO where we would commit
transactions on the WriteTransactionState dctor instead of
aborting them.

Besides changing WriteTransactionState::Reset() to call
CommitOrAbort(Transaction::ABORTED) this also required that
we change TabletBootstrap to explicitely call
tx_state.CommitOrAbort(Transaction::COMMITTED) in
PlayWriteRequest().

I ran raft_consensus-itest and exactly_once_writes-itest in slow
mode, asan, for 1000 loops on dist-test. Results:

exactly_once_writes-itest: 
http://dist-test.cloudera.org//job?job_id=david.alves.1480657298.6678
raft_consensus-itest     : 
http://dist-test.cloudera.org//job?job_id=david.alves.1480657298.6678

Change-Id: I22be773081ca3f3b1eab029e847a21e3182c64c9
---
M src/kudu/tablet/tablet_bootstrap.cc
M src/kudu/tablet/transactions/write_transaction.cc
2 files changed, 3 insertions(+), 2 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/20/5320/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I22be773081ca3f3b1eab029e847a21e3182c64c9
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: David Ribeiro Alves <dral...@apache.org>

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