Dear colleagues,
is it possible to use DB backend for keeping state of controller in
order to provide HA, instead of drbd volume like described here? -
https://www.linbit.com/linstor-controller-pacemaker/
I can't check whether it works or no, because after configured [db]
section in linstor.toml with username/password/connector I hit the error
message below (spoiler: "Unsupported Database MariaDB 10.4").
So, two questions:
1) whether it is possible to use SQL as a backend for HA configuration?
1.1) if not - which role plays SQL in controller's life?
2) MariaDB 10.4 is fairly stable and back-compatible with 10.x, whether
it can be supported by Linstor?
=======
ERROR REPORT 5E85B5AF-00000-000000
============================================================
Application: LINBIT® LINSTOR
Module: Controller
Version: 1.5.2
Build ID: f9a1a0bddf354ba8b464b35391aca456756e12f6
Build time: 2020-03-24T12:05:39+00:00
Error time: 2020-04-02 12:51:45
Node: cmp1
============================================================
Reported error:
===============
Category: RuntimeException
Class name: FlywayException
Class canonical name: org.flywaydb.core.api.FlywayException
Generated at: Method
'fromDatabaseProductNameAndPostgreSQLVersion', Source file 'DatabaseType.java',
Line #168
Error message: Unsupported Database: MariaDB 10.4
Call backtrace:
Method Native Class:Line number
fromDatabaseProductNameAndPostgreSQLVersion N
org.flywaydb.core.internal.jdbc.DatabaseType:168
fromJdbcConnection N
org.flywaydb.core.internal.jdbc.DatabaseType:117
createDatabase N
org.flywaydb.core.internal.database.DatabaseFactory:90
execute N
org.flywaydb.core.Flyway:1670
migrate N
org.flywaydb.core.Flyway:1356
migrate N
com.linbit.linstor.dbcp.DbConnectionPool:220
initialize N
com.linbit.linstor.dbcp.DbConnectionPoolInitializer:47
startSystemServices N
com.linbit.linstor.core.ApplicationLifecycleManager:88
start N
com.linbit.linstor.core.Controller:298
main N
com.linbit.linstor.core.Controller:504
END OF ERROR REPORT.
--
Volodymyr Litovka
"Vision without Execution is Hallucination." -- Thomas Edison
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