Hello Tidy Bot, Alexey Serbin, Kudu Jenkins, Andrew Wong,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/17097
to look at the new patch set (#2).
Change subject: KUDU-2612: add PartitionLock and ScopedPartitionLock
......................................................................
KUDU-2612: add PartitionLock and ScopedPartitionLock
This patch introduces a coase grained partition level lock, PartitionLock
to prevent dirty writes for multi-rows transaction. A partition lock can
only be held by a single transaction at a time, the same transaction
can hold the lock for multiple times. To prevent deadlock, 'wait-die'
scheme is used, which if the transaction requires a lock held by another
transaction,
1) abort the transaction immediately if it has a higher txn ID than
the other one.
2) Otherwise, retry the transaction.
A ScopedPartitionLock is also introduced to automatically manage the
lifecycle of a PartitionLock.
Change-Id: I158115739ce3e7cfb77bbcb854e834336c1256b1
---
M src/kudu/tablet/lock_manager-test.cc
M src/kudu/tablet/lock_manager.cc
M src/kudu/tablet/lock_manager.h
M src/kudu/tserver/tserver.proto
4 files changed, 279 insertions(+), 7 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/97/17097/2
--
To view, visit http://gerrit.cloudera.org:8080/17097
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I158115739ce3e7cfb77bbcb854e834336c1256b1
Gerrit-Change-Number: 17097
Gerrit-PatchSet: 2
Gerrit-Owner: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
