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https://issues.apache.org/jira/browse/IGNITE-15083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17908497#comment-17908497
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Nikolay Izhikov commented on IGNITE-15083:
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All failed tests are flaky.
TcpDiscoverySpiFailureTimeoutSelfTest.testConnectionCheckMessage -
https://ci2.ignite.apache.org/test/1976455332399405407?currentProjectId=IgniteTests24Java8&orderBy=status&order=desc
ContinuousQueryTestSuite: TestLongEventsProcessingDisconnect -
https://ci2.ignite.apache.org/test/-4232096972891564304?currentProjectId=IgniteTests24Java8
IgniteCacheQueryStopOnCancelOrTimeoutDistributedJoinSelfTest.testTimeout2 -
https://ci2.ignite.apache.org/test/-5992755634480521477?currentProjectId=IgniteTests24Java8
IgniteCacheQueryStopOnCancelOrTimeoutDistributedJoinSelfTest.testCancel2 -
https://ci2.ignite.apache.org/test/-8172460858110862872?currentProjectId=IgniteTests24Java8
IgniteSpiTestSuite:
GridTcpCommunicationInverseConnectionEstablishingTest.testClientSkipsInverseConnectionResponse
-
https://ci2.ignite.apache.org/test/-2983616410078297078?currentProjectId=IgniteTests24Java8
GridTcpCommunicationInverseConnectionEstablishingTest.testClientSkippingInverseConnResponseIsForciblyFailed
-
https://ci2.ignite.apache.org/test/-5785184112081658705?currentProjectId=IgniteTests24Java8
> Implement leaseholder selection and failover
> --------------------------------------------
>
> Key: IGNITE-15083
> URL: https://issues.apache.org/jira/browse/IGNITE-15083
> Project: Ignite
> Issue Type: Task
> Reporter: Alexey Scherbakov
> Priority: Major
> Labels: iep-61, ignite-3
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> The tx design [1] assumes the presence of leaseholder (stronger form of a
> leader) for each partition raft group.
> * Leaseholder is used for reads without majority heartbeat
> * Leaseholder is used for lock requests processing.
> * Only one leaseholder should exists at a time.
> * Leaseholders map is stored in metastore (can be discovered by asking group
> members in the first approach)
> * Tx coordinators are subscribed for leaseholder status updates.
> The lease acquisiotion implementation details are open for now [2].
> Jraft includes expiration based leases (similar to yugabyte's), and this
> should be enough for the first approach.
> [1] https://github.com/apache/ignite-3/tree/main/modules/transactions
> [2] Cocroach and tikv use raft log based approach.
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