Ilya Shishkov created IGNITE-15969:
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             Summary: Enabling authentication requires the client node to 
enable persistence in the configuration
                 Key: IGNITE-15969
                 URL: https://issues.apache.org/jira/browse/IGNITE-15969
             Project: Ignite
          Issue Type: Bug
    Affects Versions: 2.11
            Reporter: Ilya Shishkov
            Assignee: Ilya Shishkov


When you start cluster with turned on built-in authentication it requires to 
enable persistence too [1].
This requirement seems to be useless for client nodes, because they has no 
persistence, but without pesistence client node would fail during start up with 
below error:
{code}
class org.apache.ignite.IgniteCheckedException: Authentication can be enabled 
only for cluster with enabled persistence. Check the DataRegionConfiguration

        at 
org.apache.ignite.internal.processors.authentication.IgniteAuthenticationProcessor.startProcessor(IgniteAuthenticationProcessor.java:150)
        at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:1259)
        at 
org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:2141)
        at 
org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1787)
        at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1172)
        at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:642)
{code}

Links:
https://ignite.apache.org/docs/latest/security/authentication



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