WildFly Full 27 Model Reference

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Configures a datasource to be considered by the transaction manager as a CMR resource. CMR is a non-XA database resource that can reliably participate in an XA transaction.

Attributes (4)

  • batch-size Configures number of ids placed within 'in' clause of the SQL query 'DELETE FROM ... WHERE xid in (...)' when periodic recovery processes the CMR database table garbage collection. When some garbage is left in the CMR database table after deletion another SQL delete is run during the next recovery cycle. When 'immediate-cleanup' is used this configuration has no big impact as the periodic recovery finds each time an empty CMR database table.
    • Attribute Value
    Default Value 100
    Type INT
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • immediate-cleanup Immediate cleanup of ids associated with this CMR resource after the end of the transaction. When set to false the garbage collection of the ids is processed by periodic recovery.
    • Attribute Value
    Default Value true
    Type BOOLEAN
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services
  • jndi-name A JNDI name of the non-XA datasource which is made to be a CMR resource for the purpose of transaction manager participant handling. The datasource is required to be marked as 'connectable=true'.
    • Attribute Value
    Type STRING
    Nillable false
    Expressions Allowed true
    Storage configuration
    Access Type read-only
  • name Defines the database table name used for storing ids associated with this CMR resource. The default value for naming the database table is 'xids'.
    • Attribute Value
    Default Value xids
    Type STRING
    Nillable true
    Expressions Allowed true
    Storage configuration
    Access Type read-write
    Restart Required no-services

Operations (2)

  • add Add a single CMR resource.
    Request Parameter Type Required Expressions Allowed Default value Description
    batch-size INT false true 100 Configures number of ids placed within 'in' clause of the SQL query 'DELETE FROM ... WHERE xid in (...)' when periodic recovery processes the CMR database table garbage collection. When some garbage is left in the CMR database table after deletion another SQL delete is run during the next recovery cycle. When 'immediate-cleanup' is used this configuration has no big impact as the periodic recovery finds each time an empty CMR database table.
    immediate-cleanup BOOLEAN false true true Immediate cleanup of ids associated with this CMR resource after the end of the transaction. When set to false the garbage collection of the ids is processed by periodic recovery.
    name STRING false true xids Defines the database table name used for storing ids associated with this CMR resource. The default value for naming the database table is 'xids'.
  • remove Remove a single CMR resource.