Sergey Uttsel created IGNITE-16723:
--------------------------------------
Summary: TX Recovery protocol in Cockroach in case of a failure of
enlisted leaseholder
Key: IGNITE-16723
URL: https://issues.apache.org/jira/browse/IGNITE-16723
Project: Ignite
Issue Type: Task
Reporter: Sergey Uttsel
Assignee: Sergey Uttsel
Need to investigate:
# how it is guaranteed that the commit timestamp is in the leaseholder
intervals of all enlisted partitions in case of a failure of txn enlisted
leaseholder.
# how to restore a lock for a read operation in case of a failure of txn
enlisted leaseholder.
For example:
tx1.start
v1 = tx1.read(k1) in range1
tx1.write(k2, v1) in range2
Start to commit tx1 (the write intent was replicated, a commit timestamp known,
but a commit request was not sent yet)
Leaseholder of range1 has failed, the lease has expired. A new leaseholder was
elected.
tx2.start
tx2.write(k1, v2) in range1
tx2.commit
tx2.end
Transaction record of tx1 is committed now.
tx1.end
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
