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https://issues.apache.org/jira/browse/IGNITE-19466?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vyacheslav Koptilin reassigned IGNITE-19466:
--------------------------------------------
Assignee: Sergey Uttsel
> Empty data nodes on table creation
> ----------------------------------
>
> Key: IGNITE-19466
> URL: https://issues.apache.org/jira/browse/IGNITE-19466
> Project: Ignite
> Issue Type: Bug
> Reporter: Sergey Uttsel
> Assignee: Sergey Uttsel
> Priority: Major
> Labels: ignite-3, tech-debt
>
> h3. *Motivation*
> After introducing data nodes from DistributionZoneManager on table creation
> it became possible that a table is created with an empty data nodes value and
> therefore with empty assignments. It causes an exceptions like
> {code:java}
> Caused by: java.lang.AssertionError
> at
> org.apache.ignite.internal.raft.RaftGroupServiceImpl.randomNode(RaftGroupServiceImpl.java:680)
> at
> org.apache.ignite.internal.raft.RaftGroupServiceImpl.randomNode(RaftGroupServiceImpl.java:667)
> at
> org.apache.ignite.internal.raft.RaftGroupServiceImpl.refreshLeader(RaftGroupServiceImpl.java:222)
> at
> org.apache.ignite.internal.raft.RaftGroupServiceImpl.start(RaftGroupServiceImpl.java:178)
> {code}
> because there are an empty peers on RaftGroupServiceImpl#start. The proper
> solution is a table creation with empty peers but remains unusable until the
> data nodes for the zone is updated and RaftGroupServiceImpl is started with
> peers.
> h3. *Definition of Done*
> If the date nodes for the zone are empty, then create a table without a raft
> group and other components.
> h3. *Implementation Notes*
> In case a table creation when the data nodes values of the zone is empty
> createTablePartitionsLocally method receives an empty newPartAssignment. So
> it is not possible to do startRaftGroupNode without peers. Need to skip start
> a raft group and other components if the data nodes is empty.
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