Examples with MycatConfig io.mycat.config.MycatConfig used on opensource projects

Example 11 with MycatConfig

use of io.mycat.config.MycatConfig in project Mycat-Server by MyCATApache.

the class RollbackConfig method rollback.

private static boolean rollback() {
    MycatConfig conf = MycatServer.getInstance().getConfig();
    Map<String, UserConfig> users = conf.getBackupUsers();
    Map<String, SchemaConfig> schemas = conf.getBackupSchemas();
    Map<String, PhysicalDBNode> dataNodes = conf.getBackupDataNodes();
    Map<String, PhysicalDBPool> dataHosts = conf.getBackupDataHosts();
    MycatCluster cluster = conf.getBackupCluster();
    FirewallConfig firewall = conf.getBackupFirewall();
    // 检查可回滚状态
    if (!conf.canRollback()) {
        return false;
    }
    // 如果回滚已经存在的pool
    boolean rollbackStatus = true;
    Map<String, PhysicalDBPool> cNodes = conf.getDataHosts();
    for (PhysicalDBPool dn : dataHosts.values()) {
        dn.init(dn.getActivedIndex());
        if (!dn.isInitSuccess()) {
            rollbackStatus = false;
            break;
        }
    }
    // 如果回滚不成功，则清理已初始化的资源。
    if (!rollbackStatus) {
        for (PhysicalDBPool dn : dataHosts.values()) {
            dn.clearDataSources("rollbackup config");
            dn.stopHeartbeat();
        }
        return false;
    }
    // 应用回滚
    conf.rollback(users, schemas, dataNodes, dataHosts, cluster, firewall);
    // 处理旧的资源
    for (PhysicalDBPool dn : cNodes.values()) {
        dn.clearDataSources("clear old config ");
        dn.stopHeartbeat();
    }
    //清理缓存
    MycatServer.getInstance().getCacheService().clearCache();
    return true;
}

Example 12 with MycatConfig

use of io.mycat.config.MycatConfig in project Mycat-Server by MyCATApache.

the class SequenceVal method execute.

public void execute(SequenceVal seqVal) {
    MycatConfig conf = MycatServer.getInstance().getConfig();
    PhysicalDBNode mysqlDN = conf.getDataNodes().get(seqVal.dataNode);
    try {
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("execute in datanode " + seqVal.dataNode + " for fetch sequnce sql " + seqVal.sql);
        }
        // 修正获取seq的逻辑，在读写分离的情况下只能走写节点。修改Select模式为Update模式。
        mysqlDN.getConnection(mysqlDN.getDatabase(), true, new RouteResultsetNode(seqVal.dataNode, ServerParse.UPDATE, seqVal.sql), this, seqVal);
    } catch (Exception e) {
        LOGGER.warn("get connection err " + e);
    }
}

Example 13 with MycatConfig

use of io.mycat.config.MycatConfig in project Mycat-Server by MyCATApache.

the class NonBlockingSession method kill.

//	public boolean tryExistsCon(final BackendConnection conn,
//			RouteResultsetNode node) {
//
//		if (conn == null) {
//			return false;
//		}
//		if (!conn.isFromSlaveDB()
//				|| node.canRunnINReadDB(getSource().isAutocommit())) {
//			if (LOGGER.isDebugEnabled()) {
//				LOGGER.debug("found connections in session to use " + conn
//						+ " for " + node);
//			}
//			conn.setAttachment(node);
//			return true;
//		} else {
//			// slavedb connection and can't use anymore ,release it
//			if (LOGGER.isDebugEnabled()) {
//				LOGGER.debug("release slave connection,can't be used in trasaction  "
//						+ conn + " for " + node);
//			}
//			releaseConnection(node, LOGGER.isDebugEnabled(), false);
//		}
//		return false;
//	}
protected void kill() {
    boolean hooked = false;
    AtomicInteger count = null;
    Map<RouteResultsetNode, BackendConnection> killees = null;
    for (RouteResultsetNode node : target.keySet()) {
        BackendConnection c = target.get(node);
        if (c != null) {
            if (!hooked) {
                hooked = true;
                killees = new HashMap<RouteResultsetNode, BackendConnection>();
                count = new AtomicInteger(0);
            }
            killees.put(node, c);
            count.incrementAndGet();
        }
    }
    if (hooked) {
        for (Entry<RouteResultsetNode, BackendConnection> en : killees.entrySet()) {
            KillConnectionHandler kill = new KillConnectionHandler(en.getValue(), this);
            MycatConfig conf = MycatServer.getInstance().getConfig();
            PhysicalDBNode dn = conf.getDataNodes().get(en.getKey().getName());
            try {
                dn.getConnectionFromSameSource(null, true, en.getValue(), kill, en.getKey());
            } catch (Exception e) {
                LOGGER.error("get killer connection failed for " + en.getKey(), e);
                kill.connectionError(e, null);
            }
        }
    }
}

Example 14 with MycatConfig

use of io.mycat.config.MycatConfig in project Mycat-Server by MyCATApache.

the class GlobalTableUtil method reGetColumnsForTable.

/**
	 * 重新获得table 的列list
	 * @param tableName
	 */
private static void reGetColumnsForTable(String tableName) {
    MycatConfig config = MycatServer.getInstance().getConfig();
    if (globalTableMap != null && globalTableMap.get(tableName.toUpperCase()) != null) {
        TableConfig tableConfig = globalTableMap.get(tableName.toUpperCase());
        if (// consistencyCheck 在运行中
        tableConfig == null || isInnerColumnCheckFinished != 1)
            return;
        String nodeName = tableConfig.getDataNodes().get(0);
        Map<String, PhysicalDBNode> map = config.getDataNodes();
        for (String k2 : map.keySet()) {
            PhysicalDBNode dBnode = map.get(k2);
            if (nodeName.equals(dBnode.getName())) {
                PhysicalDBPool pool = dBnode.getDbPool();
                List<PhysicalDatasource> dsList = (List<PhysicalDatasource>) pool.genAllDataSources();
                for (PhysicalDatasource ds : dsList) {
                    if (ds instanceof MySQLDataSource) {
                        MySQLDataSource mds = (MySQLDataSource) dsList.get(0);
                        MySQLConsistencyChecker checker = new MySQLConsistencyChecker(mds, tableConfig.getName());
                        checker.checkInnerColumnExist();
                        // 运行一次就行了，不需要像consistencyCheck那样每个db都运行一次
                        return;
                    }
                }
            }
        }
    }
}

Example 15 with MycatConfig

use of io.mycat.config.MycatConfig in project Mycat-Server by MyCATApache.

the class GlobalTableUtil method getGlobalTable.

private static void getGlobalTable() {
    MycatConfig config = MycatServer.getInstance().getConfig();
    Map<String, SchemaConfig> schemaMap = config.getSchemas();
    SchemaConfig schemaMconfig = null;
    for (String key : schemaMap.keySet()) {
        if (schemaMap.get(key) != null) {
            schemaMconfig = schemaMap.get(key);
            Map<String, TableConfig> tableMap = schemaMconfig.getTables();
            if (tableMap != null) {
                for (String k : tableMap.keySet()) {
                    TableConfig table = tableMap.get(k);
                    if (table != null && table.isGlobalTable()) {
                        globalTableMap.put(table.getName().toUpperCase(), table);
                    }
                }
            }
        }
    }
}