Usage: ./rdkafka_example -C|-P|-L -t <topic> [-p <partition>] [-b <host1:port1,host2:port2,..>]

这个提示信息表明 rdkafka_example 可以以三种模式运行：消费者模式（-C）、生产者模式（-P）和日志模式（-L）。另外，命令行参数 -t 指定了要操作的主题，-p 指定了要操作的分区，-b 指定了 Kafka 集群的地址。具体用法如下：

- 消费者模式：./rdkafka_example -C -t <topic> [-p <partition>] [-b <host1:port1,host2:port2,..>]
- 生产者模式：./rdkafka_example -P -t <topic> [-b <host1:port1,host2:port2,..>]
- 日志模式：./rdkafka_example -L [-b <host1:port1,host2:port2,..>]

其中，消费者模式会启动一个 Kafka 消费者，从指定主题的指定分区消费消息并输出到控制台；生产者模式会启动一个 Kafka 生产者，将从标准输入读取的消息发送到指定主题；日志模式会输出指定 Kafka 集群的元数据信息到控制台。

相关问题

根据例子 <!--Version: 1.8--> <PartitionDescription xmlns="http://www.windriver.com/vxWorks653/ConfigRecord" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.windriver.com/vxWorks653/ConfigRecord Partition.xsd"> <!--IOM_CF_HLR_7345--> <SharedDataRegion NameRef="HMGPM2_IOM" UserAccess="READ_ONLY"/> <!--End--> <!--IOM_CF_HLR_7344--> <SharedDataRegion NameRef="HUDS_DMH" UserAccess="READ_ONLY"/> <!--End-->

根据您提供的例子，我会假设您需要对 XML 文件进行遍历，检查每个注释元素是否以 `<!--XX_HLR_NUM-->` 开头并以 `<!--END-->` 结尾。

下面是实现这个功能的代码示例：

import xml.etree.ElementTree as ET

def check_xml(xml_file):
    tree = ET.parse(xml_file)
    root = tree.getroot()
    for elem in root.iter():
        if elem.tag == "comment":
            if not elem.text.strip().startswith("<!--XX_HLR_NUM-->"):
                print(f"Error: line {elem.sourceline} does not start with <!--XX_HLR_NUM-->")
            elif not elem.text.strip().endswith("<!--END-->"):
                print(f"Error: line {elem.sourceline} does not end with <!--END-->")

该函数使用 ElementTree 模块解析 XML 文件，然后遍历文件中的每一个元素。如果元素是注释，则检查其文本是否以 `<!--XX_HLR_NUM-->` 开头并以 `<!--END-->` 结尾。如果不符合条件，则打印错误行号。

请注意，代码中使用了 `strip()` 方法来删除注释文本中的空格和换行符。因为 XML 注释中可能包含这些字符，所以需要使用 `strip()` 方法来删除它们，以便正确比较注释文本的开头和结尾。

set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan; insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false) SELECT source.mall_id AS mall_id, COUNT(1) AS total FROM (SELECT cuid, mall_id, mall_name, date_type FROM huiyan_ns.huiyan.map_huiyan_mall_basic_source WHERE event_day = '{FORWARD_MONTH_END}') source JOIN (SELECT cuid, * FROM huiyan_ns.huiyan.map_huiyan_parse_userpic WHERE event_day >= '{FORWARD_7_DAY}' AND event_day <= '{FORWARD_MONTH_END}') userpic ON userpic.cuid = source.cuid GROUP BY source.mall_id, source.mall_name, source.date_type; alter table huiyan_ns.huiyan.map_huiyan_mall_userpic_raw add partition(event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_flow_userpic_raw/event_day={FORWARD_MONTH_END}'; set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan; insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}' using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false) SELECT TRANSFORM(mall_id, ) USING 'python3 mall_userpic_streaming.py' AS(mall_id, ) FROM huiyan_ns.huiyan.map_huiyan_mall_userpic_raw WHERE event_day = '{FORWARD_MONTH_END}' ; alter table huiyan_ns.huiyan.map_huiyan_mall_userpic add partition(event_type='monthly', event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day=${FORWARD_MONTH_END}'; 将这两段代码合并为一段

你可以将这两段代码合并为以下形式：

set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan;

insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}'  using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false)
SELECT
	source.mall_id AS mall_id,
	COUNT(1) AS total
FROM 
	(SELECT cuid, mall_id, mall_name, date_type
	FROM huiyan_ns.huiyan.map_huiyan_mall_basic_source
	WHERE event_day = '{FORWARD_MONTH_END}') source
	
	JOIN
	(SELECT cuid, * 
	FROM huiyan_ns.huiyan.map_huiyan_parse_userpic 
	WHERE event_day >= '{FORWARD_7_DAY}' AND event_day <= '{FORWARD_MONTH_END}') userpic
	
	ON userpic.cuid = source.cuid
GROUP BY source.mall_id, source.mall_name, source.date_type;

alter table huiyan_ns.huiyan.map_huiyan_mall_userpic_raw add partition(event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_flow_userpic_raw/event_day={FORWARD_MONTH_END}';

set user_write_ugi:afs://kunpeng.afs.baidu.com:9902=lbs-huiyan,lbs-huiyan;

insert overwrite directory 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day={FORWARD_MONTH_END}'  using CSV options('compression'='GZIP', sep='\t', escapeQuotes=false)
SELECT
	TRANSFORM(mall_id)
	USING 'python3 mall_userpic_streaming.py'
	AS (mall_id)
FROM huiyan_ns.huiyan.map_huiyan_mall_userpic_raw
WHERE event_day = '{FORWARD_MONTH_END}';

alter table huiyan_ns.huiyan.map_huiyan_mall_userpic add partition(event_type='monthly', event_day='{FORWARD_MONTH_END}') location 'afs://kunpeng.afs.baidu.com:9902/user/lbs-huiyan/warehouse/huiyan.db/map_huiyan_mall_userpic/event_type=monthly/event_day=${FORWARD_MONTH_END}';

请注意，这是将两段代码合并为一段，但我无法保证这段代码的逻辑和语法是否正确。请在使用之前进行适当的检查和测试。