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Python ConsumerCoordinator.commit_offsets_sync方法代碼示例

本文整理匯總了Python中kafka.coordinator.consumer.ConsumerCoordinator.commit_offsets_sync方法的典型用法代碼示例。如果您正苦於以下問題:Python ConsumerCoordinator.commit_offsets_sync方法的具體用法?Python ConsumerCoordinator.commit_offsets_sync怎麽用?Python ConsumerCoordinator.commit_offsets_sync使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在kafka.coordinator.consumer.ConsumerCoordinator的用法示例。


在下文中一共展示了ConsumerCoordinator.commit_offsets_sync方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: KafkaConsumer

# 需要導入模塊: from kafka.coordinator.consumer import ConsumerCoordinator [as 別名]
# 或者: from kafka.coordinator.consumer.ConsumerCoordinator import commit_offsets_sync [as 別名]

#.........這裏部分代碼省略.........
                a commit request completes.

        Returns:
            kafka.future.Future
        """
        assert self.config["api_version"] >= (0, 8, 1)
        if offsets is None:
            offsets = self._subscription.all_consumed_offsets()
        log.debug("Committing offsets: %s", offsets)
        future = self._coordinator.commit_offsets_async(offsets, callback=callback)
        return future

    def commit(self, offsets=None):
        """Commit offsets to kafka, blocking until success or error

        This commits offsets only to Kafka. The offsets committed using this API
        will be used on the first fetch after every rebalance and also on
        startup. As such, if you need to store offsets in anything other than
        Kafka, this API should not be used.

        Blocks until either the commit succeeds or an unrecoverable error is
        encountered (in which case it is thrown to the caller).

        Currently only supports kafka-topic offset storage (not zookeeper)

        Arguments:
            offsets (dict, optional): {TopicPartition: OffsetAndMetadata} dict
                to commit with the configured group_id. Defaults to current
                consumed offsets for all subscribed partitions.
        """
        assert self.config["api_version"] >= (0, 8, 1)
        if offsets is None:
            offsets = self._subscription.all_consumed_offsets()
        self._coordinator.commit_offsets_sync(offsets)

    def committed(self, partition):
        """Get the last committed offset for the given partition

        This offset will be used as the position for the consumer
        in the event of a failure.

        This call may block to do a remote call if the partition in question
        isn't assigned to this consumer or if the consumer hasn't yet
        initialized its cache of committed offsets.

        Arguments:
            partition (TopicPartition): the partition to check

        Returns:
            The last committed offset, or None if there was no prior commit.
        """
        assert self.config["api_version"] >= (0, 8, 1)
        if self._subscription.is_assigned(partition):
            committed = self._subscription.assignment[partition].committed
            if committed is None:
                self._coordinator.refresh_committed_offsets_if_needed()
                committed = self._subscription.assignment[partition].committed
        else:
            commit_map = self._coordinator.fetch_committed_offsets([partition])
            if partition in commit_map:
                committed = commit_map[partition].offset
            else:
                committed = None
        return committed

    def topics(self):
開發者ID:sounos,項目名稱:kafka-python,代碼行數:70,代碼來源:group.py


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