Java Code Examples for com.alibaba.otter.canal.protocol.position.EntryPosition#setPosition()

The following examples show how to use com.alibaba.otter.canal.protocol.position.EntryPosition#setPosition() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: AbstractEventParser.java From canal-1.1.3 with Apache License 2.0

6 votes

protected LogPosition buildLastPosition(CanalEntry.Entry entry) { // 初始化一下
    LogPosition logPosition = new LogPosition();
    EntryPosition position = new EntryPosition();
    position.setJournalName(entry.getHeader().getLogfileName());
    position.setPosition(entry.getHeader().getLogfileOffset());
    position.setTimestamp(entry.getHeader().getExecuteTime());
    // add serverId at 2016-06-28
    position.setServerId(entry.getHeader().getServerId());
    // set gtid
    position.setGtid(entry.getHeader().getGtid());

    logPosition.setPostion(position);

    LogIdentity identity = new LogIdentity(runningInfo.getAddress(), -1L);
    logPosition.setIdentity(identity);
    return logPosition;
}

Example 2

Source File: CanalEventUtils.java From canal-1.1.3 with Apache License 2.0

6 votes

/**
 * 根据entry创建对应的Position对象
 */
public static LogPosition createPosition(Event event) {
    EntryPosition position = new EntryPosition();
    position.setJournalName(event.getJournalName());
    position.setPosition(event.getPosition());
    position.setTimestamp(event.getExecuteTime());
    // add serverId at 2016-06-28
    position.setServerId(event.getServerId());
    // add gtid
    position.setGtid(event.getGtid());

    LogPosition logPosition = new LogPosition();
    logPosition.setPostion(position);
    logPosition.setIdentity(event.getLogIdentity());
    return logPosition;
}

Example 3

Source File: AbstractEventParser.java From canal with Apache License 2.0

6 votes

protected LogPosition buildLastPosition(CanalEntry.Entry entry) { // 初始化一下
    LogPosition logPosition = new LogPosition();
    EntryPosition position = new EntryPosition();
    position.setJournalName(entry.getHeader().getLogfileName());
    position.setPosition(entry.getHeader().getLogfileOffset());
    position.setTimestamp(entry.getHeader().getExecuteTime());
    // add serverId at 2016-06-28
    position.setServerId(entry.getHeader().getServerId());
    // set gtid
    position.setGtid(entry.getHeader().getGtid());

    logPosition.setPostion(position);

    LogIdentity identity = new LogIdentity(runningInfo.getAddress(), -1L);
    logPosition.setIdentity(identity);
    return logPosition;
}

Example 4

Source File: CanalEventUtils.java From canal with Apache License 2.0

6 votes

/**
 * 根据entry创建对应的Position对象
 */
public static LogPosition createPosition(Event event) {
    EntryPosition position = new EntryPosition();
    position.setJournalName(event.getJournalName());
    position.setPosition(event.getPosition());
    position.setTimestamp(event.getExecuteTime());
    // add serverId at 2016-06-28
    position.setServerId(event.getServerId());
    // add gtid
    position.setGtid(event.getGtid());

    LogPosition logPosition = new LogPosition();
    logPosition.setPostion(position);
    logPosition.setIdentity(event.getLogIdentity());
    return logPosition;
}

Example 5

Source File: CanalEventUtils.java From canal with Apache License 2.0

6 votes

/**
 * 根据entry创建对应的Position对象
 */
public static LogPosition createPosition(Event event, boolean included) {
    EntryPosition position = new EntryPosition();
    position.setJournalName(event.getJournalName());
    position.setPosition(event.getPosition());
    position.setTimestamp(event.getExecuteTime());
    position.setIncluded(included);
    // add serverId at 2016-06-28
    position.setServerId(event.getServerId());
    // add gtid
    position.setGtid(event.getGtid());

    LogPosition logPosition = new LogPosition();
    logPosition.setPostion(position);
    logPosition.setIdentity(event.getLogIdentity());
    return logPosition;
}

Example 6

Source File: MysqlEventParser.java From canal-1.1.3 with Apache License 2.0

5 votes

protected EntryPosition findStartPosition(ErosaConnection connection) throws IOException {
    if (isGTIDMode()) {
        // GTID模式下，CanalLogPositionManager里取最后的gtid，没有则取instanc配置中的
        LogPosition logPosition = getLogPositionManager().getLatestIndexBy(destination);
        if (logPosition != null) {
            return logPosition.getPostion();
        }

        if (masterPosition != null && StringUtils.isNotEmpty(masterPosition.getGtid())) {
            return masterPosition;
        }
    }

    EntryPosition startPosition = findStartPositionInternal(connection);
    if (needTransactionPosition.get()) {
        logger.warn("prepare to find last position : {}", startPosition.toString());
        Long preTransactionStartPosition = findTransactionBeginPosition(connection, startPosition);
        if (!preTransactionStartPosition.equals(startPosition.getPosition())) {
            logger.warn("find new start Transaction Position , old : {} , new : {}",
                startPosition.getPosition(),
                preTransactionStartPosition);
            startPosition.setPosition(preTransactionStartPosition);
        }
        needTransactionPosition.compareAndSet(true, false);
    }
    return startPosition;
}

Example 7

Source File: CanalEventUtils.java From canal-1.1.3 with Apache License 2.0

5 votes

/**
 * 根据entry创建对应的Position对象
 */
public static LogPosition createPosition(Event event, boolean included) {
    EntryPosition position = new EntryPosition();
    position.setJournalName(event.getJournalName());
    position.setPosition(event.getPosition());
    position.setTimestamp(event.getExecuteTime());
    position.setIncluded(included);

    LogPosition logPosition = new LogPosition();
    logPosition.setPostion(position);
    logPosition.setIdentity(event.getLogIdentity());
    return logPosition;
}

Example 8

Source File: AbstractEventParser.java From DBus with Apache License 2.0

5 votes

protected LogPosition buildLastPosition(CanalEntry.Entry entry) { // 初始化一下
    LogPosition logPosition = new LogPosition();
    EntryPosition position = new EntryPosition();
    position.setJournalName(entry.getHeader().getLogfileName());
    position.setPosition(entry.getHeader().getLogfileOffset());
    position.setTimestamp(entry.getHeader().getExecuteTime());
    // add serverId at 2016-06-28
    position.setServerId(entry.getHeader().getServerId());
    logPosition.setPostion(position);

    LogIdentity identity = new LogIdentity(runningInfo.getAddress(), -1L);
    logPosition.setIdentity(identity);
    return logPosition;
}

Example 9

Source File: MysqlEventParser.java From canal with Apache License 2.0

5 votes

protected EntryPosition findStartPosition(ErosaConnection connection) throws IOException {
    if (isGTIDMode()) {
        // GTID模式下，CanalLogPositionManager里取最后的gtid，没有则取instanc配置中的
        LogPosition logPosition = getLogPositionManager().getLatestIndexBy(destination);
        if (logPosition != null) {
            // 如果以前是非GTID模式，后来调整为了GTID模式，那么为了保持兼容，需要判断gtid是否为空
            if (StringUtils.isNotEmpty(logPosition.getPostion().getGtid())) {
                return logPosition.getPostion();
            }
        }else {
            if (masterPosition != null && StringUtils.isNotEmpty(masterPosition.getGtid())) {
                return masterPosition;
            }
        }
    }

    EntryPosition startPosition = findStartPositionInternal(connection);
    if (needTransactionPosition.get()) {
        logger.warn("prepare to find last position : {}", startPosition.toString());
        Long preTransactionStartPosition = findTransactionBeginPosition(connection, startPosition);
        if (!preTransactionStartPosition.equals(startPosition.getPosition())) {
            logger.warn("find new start Transaction Position , old : {} , new : {}",
                startPosition.getPosition(),
                preTransactionStartPosition);
            startPosition.setPosition(preTransactionStartPosition);
        }
        needTransactionPosition.compareAndSet(true, false);
    }
    return startPosition;
}

Example 10

Source File: MysqlEventParser.java From canal with Apache License 2.0

4 votes

protected EntryPosition findStartPositionInternal(ErosaConnection connection) {
    MysqlConnection mysqlConnection = (MysqlConnection) connection;
    LogPosition logPosition = logPositionManager.getLatestIndexBy(destination);
    if (logPosition == null) {// 找不到历史成功记录
        EntryPosition entryPosition = null;
        if (masterInfo != null && mysqlConnection.getConnector().getAddress().equals(masterInfo.getAddress())) {
            entryPosition = masterPosition;
        } else if (standbyInfo != null
                   && mysqlConnection.getConnector().getAddress().equals(standbyInfo.getAddress())) {
            entryPosition = standbyPosition;
        }

        if (entryPosition == null) {
            entryPosition = findEndPositionWithMasterIdAndTimestamp(mysqlConnection); // 默认从当前最后一个位置进行消费
        }

        // 判断一下是否需要按时间订阅
        if (StringUtils.isEmpty(entryPosition.getJournalName())) {
            // 如果没有指定binlogName，尝试按照timestamp进行查找
            if (entryPosition.getTimestamp() != null && entryPosition.getTimestamp() > 0L) {
                logger.warn("prepare to find start position {}:{}:{}",
                    new Object[] { "", "", entryPosition.getTimestamp() });
                return findByStartTimeStamp(mysqlConnection, entryPosition.getTimestamp());
            } else {
                logger.warn("prepare to find start position just show master status");
                return findEndPositionWithMasterIdAndTimestamp(mysqlConnection); // 默认从当前最后一个位置进行消费
            }
        } else {
            if (entryPosition.getPosition() != null && entryPosition.getPosition() > 0L) {
                // 如果指定binlogName + offest，直接返回
                entryPosition = findPositionWithMasterIdAndTimestamp(mysqlConnection, entryPosition);
                logger.warn("prepare to find start position {}:{}:{}",
                    new Object[] { entryPosition.getJournalName(), entryPosition.getPosition(),
                            entryPosition.getTimestamp() });
                return entryPosition;
            } else {
                EntryPosition specificLogFilePosition = null;
                if (entryPosition.getTimestamp() != null && entryPosition.getTimestamp() > 0L) {
                    // 如果指定binlogName +
                    // timestamp，但没有指定对应的offest，尝试根据时间找一下offest
                    EntryPosition endPosition = findEndPosition(mysqlConnection);
                    if (endPosition != null) {
                        logger.warn("prepare to find start position {}:{}:{}",
                            new Object[] { entryPosition.getJournalName(), "", entryPosition.getTimestamp() });
                        specificLogFilePosition = findAsPerTimestampInSpecificLogFile(mysqlConnection,
                            entryPosition.getTimestamp(),
                            endPosition,
                            entryPosition.getJournalName(),
                            true);
                    }
                }

                if (specificLogFilePosition == null) {
                    // position不存在，从文件头开始
                    entryPosition.setPosition(BINLOG_START_OFFEST);
                    return entryPosition;
                } else {
                    return specificLogFilePosition;
                }
            }
        }
    } else {
        if (logPosition.getIdentity().getSourceAddress().equals(mysqlConnection.getConnector().getAddress())) {
            if (dumpErrorCountThreshold >= 0 && dumpErrorCount > dumpErrorCountThreshold) {
                // binlog定位位点失败,可能有两个原因:
                // 1. binlog位点被删除
                // 2.vip模式的mysql,发生了主备切换,判断一下serverId是否变化,针对这种模式可以发起一次基于时间戳查找合适的binlog位点
                boolean case2 = (standbyInfo == null || standbyInfo.getAddress() == null)
                                && logPosition.getPostion().getServerId() != null
                                && !logPosition.getPostion().getServerId().equals(findServerId(mysqlConnection));
                if (case2) {
                    EntryPosition findPosition = fallbackFindByStartTimestamp(logPosition, mysqlConnection);
                    dumpErrorCount = 0;
                    return findPosition;
                }

                Long timestamp = logPosition.getPostion().getTimestamp();
                if (isRdsOssMode() && (timestamp != null && timestamp > 0)) {
                    // 如果binlog位点不存在，并且属于timestamp不为空,可以返回null走到oss binlog处理
                    return null;
                }
            } else if (StringUtils.isBlank(logPosition.getPostion().getJournalName())
                    && logPosition.getPostion().getPosition() <= 0
                    && logPosition.getPostion().getTimestamp() > 0) {
                return fallbackFindByStartTimestamp(logPosition,mysqlConnection);
            }
            // 其余情况
            logger.warn("prepare to find start position just last position\n {}",
                JsonUtils.marshalToString(logPosition));
            return logPosition.getPostion();
        } else {
            // 针对切换的情况，考虑回退时间
            long newStartTimestamp = logPosition.getPostion().getTimestamp() - fallbackIntervalInSeconds * 1000;
            logger.warn("prepare to find start position by switch {}:{}:{}", new Object[] { "", "",
                    logPosition.getPostion().getTimestamp() });
            return findByStartTimeStamp(mysqlConnection, newStartTimestamp);
        }
    }
}