Hello Tidy Bot, Alexey Serbin, Kudu Jenkins, Andrew Wong, Bankim Bhavsar, I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/17097 to look at the new patch set (#6). Change subject: KUDU-2612: add PartitionLock and ScopedPartitionLock ...................................................................... KUDU-2612: add PartitionLock and ScopedPartitionLock This patch introduces a coarse grained partition level lock, PartitionLock to prevent dirty writes for multi-rows transaction. A partition lock can only be held by a single transaction (or write op) at a time, the same transaction can acquire 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 write op (or participant op) of 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, 457 insertions(+), 13 deletions(-) git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/97/17097/6 -- 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: 6 Gerrit-Owner: Hao Hao <hao....@cloudera.com> Gerrit-Reviewer: Alexey Serbin <aser...@cloudera.com> Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com> Gerrit-Reviewer: Bankim Bhavsar <ban...@cloudera.com> Gerrit-Reviewer: Hao Hao <hao....@cloudera.com> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Tidy Bot (241)