Interface RecoveryManager

  • All Known Implementing Classes:
    RecoveryManagerImpl

    public interface RecoveryManager
    RecoveryManager is the component responsible with managing recovery related information and the functionality associated with it. Refer to this document for details on the design of recovery.
    Since:
    5.0
    Author:
    Mircea.Markus@jboss.com
    • Method Detail

      • getPreparedTransactionsFromCluster

        RecoveryManager.RecoveryIterator getPreparedTransactionsFromCluster()
        Returns the list of transactions in prepared state from both local and remote cluster nodes. Implementation can take advantage of several optimisations:
        • in order to get all tx from the cluster a broadcast is performed. This can be performed only once (assuming the call is successful), the first time this method is called. After that a local, cached list of tx prepared on this node is returned.
        • during the broadcast just return the list of prepared transactions that are not originated on other active nodes of the cluster.
      • getInDoubtTransactionInfoFromCluster

        Set<InDoubtTxInfo> getInDoubtTransactionInfoFromCluster()
        Returns a Set containing all the in-doubt transactions from the cluster, including the local node. This does not include transactions that are prepared successfully and for which the originator is still in the cluster.
        See Also:
        InDoubtTxInfo
      • removeRecoveryInformation

        CompletionStage<Void> removeRecoveryInformation​(Collection<Address> where,
                                                        XidImpl xid,
                                                        GlobalTransaction gtx,
                                                        boolean fromCluster)
        Removes from the specified nodes (or all nodes if the value of 'where' is null) the recovery information associated with these Xids.
        Parameters:
        where - on which nodes should this be executed.
        xid - the list of xids to be removed.
        gtx - the global transaction
        fromCluster - true to remove the recovery information from all cluster.
      • getInDoubtTransactions

        List<XidImpl> getInDoubtTransactions()
        Local call that returns a list containing:
         - all the remote transactions prepared on this node for which the originator(i.e. the node where the tx
         stared) is no longer part of the cluster.
         AND
         - all the locally originated transactions which are prepared and for which the commit failed
         
        See Also:
        RecoveryAwareRemoteTransaction.isInDoubt()
      • getPreparedTransaction

        RecoveryAwareTransaction getPreparedTransaction​(XidImpl xid)
        Local call returning the remote transaction identified by the supplied xid or null.
      • forceTransactionCompletion

        CompletionStage<String> forceTransactionCompletion​(XidImpl xid,
                                                           boolean commit)
        Replays the given transaction by re-running the prepare and commit. This call expects the transaction to exist on this node either as a local or remote transaction.
        Parameters:
        xid - tx to commit or rollback
        commit - if true tx is committed, if false it is rolled back
      • isTransactionPrepared

        boolean isTransactionPrepared​(GlobalTransaction globalTx)
        Checks both internal state and transaction table's state for the given tx. If it finds it, returns true if tx is prepared.