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Posted to issues@ignite.apache.org by "Sergey Uttsel (Jira)" <ji...@apache.org> on 2023/05/12 08:48:00 UTC

[jira] [Created] (IGNITE-19466) Empty data nodes on table creation

Sergey Uttsel created IGNITE-19466:
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             Summary: 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


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 
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) 
because there are an empty peers on RaftGroupServiceImpl#start. The proper solution when a table is created 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.



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