Examples with OneRawSQLQueryResultHandler io.mycat.sqlengine.OneRawSQLQueryResultHandler used on opensource projects

Example 11 with OneRawSQLQueryResultHandler

use of io.mycat.sqlengine.OneRawSQLQueryResultHandler in project Mycat-Server by MyCATApache.

the class MySQLConsistencyChecker method checkMaxTimeStamp.

public void checkMaxTimeStamp() {
    // ["db3","db2","db1"]
    lock.lock();
    try {
        this.jobCount.set(0);
        beginTime = new Date().getTime();
        String[] physicalSchemas = source.getDbPool().getSchemas();
        for (String dbName : physicalSchemas) {
            MySQLConsistencyHelper detector = new MySQLConsistencyHelper(this, null);
            OneRawSQLQueryResultHandler resultHandler = new OneRawSQLQueryResultHandler(new String[] { GlobalTableUtil.MAX_COLUMN }, detector);
            SQLJob sqlJob = new SQLJob(this.getMaxSQL(), dbName, resultHandler, source);
            detector.setSqlJob(sqlJob);
            sqlJob.run();
            this.jobCount.incrementAndGet();
        }
    } finally {
        lock.unlock();
    }
}

Example 12 with OneRawSQLQueryResultHandler

use of io.mycat.sqlengine.OneRawSQLQueryResultHandler in project Mycat-Server by MyCATApache.

the class MySQLConsistencyChecker method checkInnerColumnExist.

/**
 * check inner column exist or not
 */
public void checkInnerColumnExist() {
    // ["db3","db2","db1"]
    lock.lock();
    try {
        this.jobCount.set(0);
        beginTime = new Date().getTime();
        String[] physicalSchemas = source.getDbPool().getSchemas();
        for (String dbName : physicalSchemas) {
            MySQLConsistencyHelper detector = new MySQLConsistencyHelper(this, null, 1);
            OneRawSQLQueryResultHandler resultHandler = new OneRawSQLQueryResultHandler(new String[] { GlobalTableUtil.INNER_COLUMN }, detector);
            String db = " and table_schema='" + dbName + "'";
            SQLJob sqlJob = new SQLJob(this.columnExistSQL + db, dbName, resultHandler, source);
            // table_schema='db1'
            detector.setSqlJob(sqlJob);
            LOGGER.debug(sqlJob.toString());
            sqlJob.run();
            this.jobCount.incrementAndGet();
        }
    } finally {
        lock.unlock();
    }
}

Example 13 with OneRawSQLQueryResultHandler

use of io.mycat.sqlengine.OneRawSQLQueryResultHandler in project Mycat-Server by MyCATApache.

the class MycatServer method performXARecoveryLog.

// XA recovery log check
private void performXARecoveryLog() {
    // fetch the recovery log
    CoordinatorLogEntry[] coordinatorLogEntries = getCoordinatorLogEntries();
    for (int i = 0; i < coordinatorLogEntries.length; i++) {
        CoordinatorLogEntry coordinatorLogEntry = coordinatorLogEntries[i];
        boolean needRollback = false;
        for (int j = 0; j < coordinatorLogEntry.participants.length; j++) {
            ParticipantLogEntry participantLogEntry = coordinatorLogEntry.participants[j];
            if (participantLogEntry.txState == TxState.TX_PREPARED_STATE) {
                needRollback = true;
                break;
            }
        }
        if (needRollback) {
            for (int j = 0; j < coordinatorLogEntry.participants.length; j++) {
                ParticipantLogEntry participantLogEntry = coordinatorLogEntry.participants[j];
                // XA rollback
                String xacmd = "XA ROLLBACK " + coordinatorLogEntry.id + ';';
                OneRawSQLQueryResultHandler resultHandler = new OneRawSQLQueryResultHandler(new String[0], new XARollbackCallback());
                outloop: for (SchemaConfig schema : MycatServer.getInstance().getConfig().getSchemas().values()) {
                    for (TableConfig table : schema.getTables().values()) {
                        for (String dataNode : table.getDataNodes()) {
                            PhysicalDBNode dn = MycatServer.getInstance().getConfig().getDataNodes().get(dataNode);
                            if (dn.getDbPool().getSource().getConfig().getIp().equals(participantLogEntry.uri) && dn.getDatabase().equals(participantLogEntry.resourceName)) {
                                // XA STATE ROLLBACK
                                participantLogEntry.txState = TxState.TX_ROLLBACKED_STATE;
                                SQLJob sqlJob = new SQLJob(xacmd, dn.getDatabase(), resultHandler, dn.getDbPool().getSource());
                                sqlJob.run();
                                LOGGER.debug(String.format("[XA ROLLBACK] [%s] Host:[%s] schema:[%s]", xacmd, dn.getName(), dn.getDatabase()));
                                break outloop;
                            }
                        }
                    }
                }
            }
        }
    }
    // init into in memory cached
    for (int i = 0; i < coordinatorLogEntries.length; i++) {
        MultiNodeCoordinator.inMemoryRepository.put(coordinatorLogEntries[i].id, coordinatorLogEntries[i]);
    }
    // discard the recovery log
    MultiNodeCoordinator.fileRepository.writeCheckpoint(MultiNodeCoordinator.inMemoryRepository.getAllCoordinatorLogEntries());
}