Examples with CoordinatorLogEntry com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry used on opensource projects

Example 1 with CoordinatorLogEntry

use of com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry in project dble by actiontech.

the class XARollbackNodesHandler method executeRollback.

private boolean executeRollback(MySQLConnection mysqlCon, int position) {
    if (position == 0 && participantLogEntry != null) {
        XAStateLog.saveXARecoveryLog(session.getSessionXaID(), session.getXaState());
    }
    if (session.getXaState() == TxState.TX_STARTED_STATE) {
        if (participantLogEntry == null) {
            participantLogEntry = new ParticipantLogEntry[nodeCount];
            CoordinatorLogEntry coordinatorLogEntry = new CoordinatorLogEntry(session.getSessionXaID(), participantLogEntry, session.getXaState());
            XAStateLog.flushMemoryRepository(session.getSessionXaID(), coordinatorLogEntry);
        }
        XAStateLog.initRecoveryLog(session.getSessionXaID(), position, mysqlCon);
        if (mysqlCon.isClosed()) {
            mysqlCon.setXaStatus(TxState.TX_CONN_QUIT);
        }
        endPhase(mysqlCon);
    } else if (session.getXaState() == TxState.TX_PREPARED_STATE) {
        if (position == 0) {
            if (!XAStateLog.saveXARecoveryLog(session.getSessionXaID(), TxState.TX_ROLLBACKING_STATE)) {
                this.setFail("saveXARecoveryLog error, the stage is TX_ROLLBACKING_STATE");
                cleanAndFeedback();
                return false;
            }
            this.debugRollbackDelay();
        }
        rollbackPhase(mysqlCon);
    } else if (session.getXaState() == TxState.TX_ROLLBACK_FAILED_STATE || session.getXaState() == TxState.TX_PREPARE_UNCONNECT_STATE) {
        rollbackPhase(mysqlCon);
    } else if (session.getXaState() == TxState.TX_ENDED_STATE) {
        if (position == 0) {
            this.debugRollbackDelay();
        }
        rollbackPhase(mysqlCon);
    }
    return true;
}

Example 2 with CoordinatorLogEntry

use of com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry in project dble by actiontech.

the class FileSystemRepository method writeCheckpoint.

@Override
public boolean writeCheckpoint(Collection<CoordinatorLogEntry> checkpointContent) {
    try {
        closeOutput();
        file.rotateFileVersion();
        rwChannel = file.openNewVersionForNioWriting();
        for (CoordinatorLogEntry coordinatorLogEntry : checkpointContent) {
            write(coordinatorLogEntry, false);
        }
        rwChannel.force(false);
        file.discardBackupVersion();
        return true;
    } catch (Exception e) {
        LOGGER.warn(AlarmCode.CORE_FILE_WRITE_WARN + "Failed to write checkpoint", e);
        return false;
    }
}

Example 3 with CoordinatorLogEntry

use of com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry in project dble by actiontech.

the class KVStoreRepository method writeCheckpoint.

@Override
public boolean writeCheckpoint(Collection<CoordinatorLogEntry> checkpointContent) {
    try {
        StringBuilder sb = new StringBuilder();
        for (CoordinatorLogEntry coordinatorLogEntry : checkpointContent) {
            sb.append(Serializer.toJson(coordinatorLogEntry));
        }
        byte[] data = sb.toString().getBytes(StandardCharsets.UTF_8);
        if (zkConn.checkExists().forPath(logPath) == null) {
            zkConn.create().creatingParentsIfNeeded().forPath(logPath);
        }
        zkConn.setData().forPath(logPath, data);
        return true;
    } catch (Exception e) {
        LOGGER.warn(AlarmCode.CORE_ZK_WARN + "Failed to write checkpoint", e);
        return false;
    }
}

Example 4 with CoordinatorLogEntry

use of com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry in project dble by actiontech.

the class XACommitNodesHandler method executeCommit.

@Override
protected boolean executeCommit(MySQLConnection mysqlCon, int position) {
    TxState state = session.getXaState();
    if (state == TxState.TX_STARTED_STATE) {
        if (participantLogEntry == null) {
            participantLogEntry = new ParticipantLogEntry[nodeCount];
            CoordinatorLogEntry coordinatorLogEntry = new CoordinatorLogEntry(session.getSessionXaID(), participantLogEntry, session.getXaState());
            XAStateLog.flushMemoryRepository(session.getSessionXaID(), coordinatorLogEntry);
        }
        XAStateLog.initRecoveryLog(session.getSessionXaID(), position, mysqlCon);
        endPhase(mysqlCon);
    } else if (state == TxState.TX_ENDED_STATE) {
        if (position == 0) {
            if (!XAStateLog.saveXARecoveryLog(session.getSessionXaID(), TxState.TX_PREPARING_STATE)) {
                String errMsg = "saveXARecoveryLog error, the stage is TX_PREPARING_STATE";
                this.setFail(errMsg);
                sendData = makeErrorPacket(errMsg);
                nextParse();
                return false;
            }
            this.debugCommitDelay();
        }
        preparePhase(mysqlCon);
    } else if (state == TxState.TX_PREPARED_STATE) {
        if (position == 0) {
            if (!XAStateLog.saveXARecoveryLog(session.getSessionXaID(), TxState.TX_COMMITTING_STATE)) {
                String errMsg = "saveXARecoveryLog error, the stage is TX_COMMITTING_STATE";
                this.setFail(errMsg);
                sendData = makeErrorPacket(errMsg);
                nextParse();
                return false;
            }
            this.debugCommitDelay();
        }
        commitPhase(mysqlCon);
    } else if (state == TxState.TX_COMMIT_FAILED_STATE) {
        if (position == 0) {
            XAStateLog.saveXARecoveryLog(session.getSessionXaID(), TxState.TX_COMMIT_FAILED_STATE);
        }
        commitPhase(mysqlCon);
    } else if (state == TxState.TX_PREPARE_UNCONNECT_STATE) {
        final String errorMsg = this.error;
        LOGGER.warn(AlarmCode.CORE_XA_WARN + "commit error and rollback the xa");
        if (decrementCountBy(1)) {
            DbleServer.getInstance().getComplexQueryExecutor().execute(new Runnable() {

                @Override
                public void run() {
                    ErrorPacket error = new ErrorPacket();
                    error.setErrNo(ER_ERROR_DURING_COMMIT);
                    error.setMessage(errorMsg == null ? "unknown error".getBytes() : errorMsg.getBytes());
                    XAAutoRollbackNodesHandler nextHandler = new XAAutoRollbackNodesHandler(session, error.toBytes(), null, null);
                    nextHandler.rollback();
                }
            });
        }
    }
    return true;
}

Example 5 with CoordinatorLogEntry

use of com.actiontech.dble.backend.mysql.xa.CoordinatorLogEntry in project dble by actiontech.

the class FileSystemRepository method readContent.

private static Map<String, CoordinatorLogEntry> readContent(BufferedReader br) throws IOException {
    Map<String, CoordinatorLogEntry> coordinatorLogEntries = new HashMap<>();
    try {
        String line;
        while ((line = br.readLine()) != null) {
            CoordinatorLogEntry coordinatorLogEntry = deserialize(line);
            coordinatorLogEntries.put(coordinatorLogEntry.getId(), coordinatorLogEntry);
        }
    } catch (EOFException unexpectedEOF) {
        LOGGER.info("Unexpected EOF - logfile not closed properly last time?", unexpectedEOF);
    // merely return what was read so far...
    } catch (ObjectStreamException unexpectedEOF) {
        LOGGER.warn(AlarmCode.CORE_FILE_WRITE_WARN + "Unexpected EOF - logfile not closed properly last time?", unexpectedEOF);
    // merely return what was read so far...
    } catch (DeserializationException unexpectedEOF) {
        LOGGER.warn(AlarmCode.CORE_FILE_WRITE_WARN + "Unexpected EOF - logfile not closed properly last time? " + unexpectedEOF);
    }
    return coordinatorLogEntries;
}