Managing active and prepared transactions
Use this task to manage active and prepared transactions that might need administrator action.
About this task
Under normal
circumstances, transactions
should run and complete (commit or roll back) automatically, without
the need
for intervention. However, in some circumstances, you might have to
resolve
a transaction manually. For example, you might want to roll back a
transaction
that has become stuck polling a resource manager that you know will
not become
available again within the required timeframe.
Under
normal
circumstances, every effort is made to finish a transaction. However,
due
to RRS and native contexts finishing, finishing the transaction might
not
be possible. In this case, the transaction is marked rollback_only
so that
it rolls back at the next available window. In other situations, you
might
have to finish a transaction manually. For example, you might want
to finish
a transaction that has become stuck polling a resource manager that
you know
will not become available again within the required timeframe.
- Manual transactions
- Transactions awaiting administrative completion. For each transaction, the local ID or global ID is displayed. You can choose to display information on each resource (specifically, which resource manager it is associated with) associated with the transaction. You can also choose to commit or roll back transactions in this state.
- Retry transactions
- Transactions with some resources being retried. For each transaction, the local ID or global ID is displayed, and whether the transaction is committing or rolling back. You can choose to display information on each resource (specifically, which resource manager it is associated with) associated with the transaction. You can also choose to finish (stop retrying) transactions in this state.
- Heuristic transactions
- Transactions that have completed heuristically. For each transaction, the local ID or global ID and the heuristic outcome is displayed. You can choose to display information on each resource (specifically, which resource manager it is associated with) associated with the transaction. You can also choose to clear the transaction from the list.
- Imported prepared transactions
- Transactions that have been imported and prepared but not yet committed. For each transaction, the local ID or global ID is displayed. You can choose to display information on each resource (specifically, which resource manager it is associated with) associated with the transaction. You can also choose to commit or roll back transactions in this state.
To manage the active and prepared transactions for an application server, use the administrative console to complete the following steps: