コード例 #1
0
  private void initFirstRun(Connection connection)
      throws SQLException, IOException, SchemaSyncError {
    LOGGER.info("Maxwell is capturing initial schema");
    SchemaCapturer capturer = new SchemaCapturer(connection);
    this.schema = capturer.capture();

    BinlogPosition pos = BinlogPosition.capture(connection);
    SchemaStore store =
        new SchemaStore(connection, this.maxwellContext.getServerID(), this.schema, pos);
    store.save();

    this.maxwellContext.setPosition(pos);
  }
コード例 #2
0
  @Override
  public void start(Map<String, String> props) {
    try {
      OffsetStorageReader offsetStorageReader = this.context.offsetStorageReader();
      Map<String, Object> offsetFromCopycat = offsetStorageReader.offset(sourcePartition());

      // XXX Need an API to pass values to Maxwell. For now, do it the dumb
      // way.
      String[] argv =
          new String[] {
            "--user="******"--password="******"--host=" + props.get(MySqlSourceConnector.HOST_CONFIG),
            "--port=" + props.get(MySqlSourceConnector.PORT_CONFIG)
          };
      this.config = new MaxwellConfig(argv);

      if (this.config.log_level != null) MaxwellLogging.setLevel(this.config.log_level);

      this.maxwellContext = new MaxwellContext(this.config);
      BinlogPosition startAt;

      try (Connection connection = this.maxwellContext.getConnectionPool().getConnection()) {
        MaxwellMysqlStatus.ensureMysqlState(connection);

        SchemaStore.ensureMaxwellSchema(connection);
        SchemaStore.upgradeSchemaStoreSchema(connection);

        SchemaStore.handleMasterChange(connection, maxwellContext.getServerID());

        if (offsetFromCopycat != null) {
          System.out.println("have copycat offsets! " + offsetFromCopycat);
          startAt =
              new BinlogPosition(
                  (long) offsetFromCopycat.get(POSITION_FIELD),
                  (String) offsetFromCopycat.get(FILENAME_FIELD));
          LOGGER.info("Maxwell is booting, starting at " + startAt);
          SchemaStore store =
              SchemaStore.restore(connection, this.maxwellContext.getServerID(), startAt);
          this.schema = store.getSchema();
        } else {
          System.out.println("no copycat offsets!");
          LOGGER.info("Maxwell is capturing initial schema");
          SchemaCapturer capturer = new SchemaCapturer(connection);
          this.schema = capturer.capture();

          startAt = BinlogPosition.capture(connection);
          SchemaStore store =
              new SchemaStore(connection, this.maxwellContext.getServerID(), this.schema, startAt);
          store.save();
        }
      } catch (SQLException e) {
        LOGGER.error("Failed to connect to mysql server @ " + this.config.getConnectionURI());
        LOGGER.error(e.getLocalizedMessage());
        throw e;
      }

      // TODO Auto-generated method stub
      this.replicator =
          new MaxwellReplicator(this.schema, null /* producer */, this.maxwellContext, startAt);
      this.maxwellContext.start();

      this.replicator.beforeStart(); // starts open replicator

    } catch (Exception e) {
      throw new ConnectException("Error Initializing Maxwell", e);
    }
  }