apache-kafka - Kafka 转储日志消息不显示负载

Question

我正在转储 Kafka 日志消息以查看日志文件中的内容。但是，它不显示任何 PayLoad。

有人可以告诉我我做错了什么吗？

看到这个

[gaurang.shah@hadoop_dev]$ cat 00000000000000000002.log
?B�i%f��i%f����������������testingD9�6pi%u%4i%u%4��������������$llllllllllll[gaurang.shah@hadoop_dev]$
[gaurang.shah@hadoop_dev]$ /usr/hdp/current/kafka-broker/bin/kafka-run-class.sh kafka.tools.DumpLogSegments --files 00000000000000000002.log --print-data-log
Dumping 00000000000000000002.log
Starting offset: 2
baseOffset: 2 lastOffset: 2 baseSequence: -1 lastSequence: -1 producerId: -1 producerEpoch: -1 partitionLeaderEpoch: 0 isTransactional: false position: 0 CreateTime: 1551110670527 isvalid: true size: 75 magic: 2 compresscodec: NONE crc: 507646879
baseOffset: 3 lastOffset: 3 baseSequence: -1 lastSequence: -1 producerId: -1 producerEpoch: -1 partitionLeaderEpoch: 0 isTransactional: false position: 75 CreateTime: 1551111628084 isvalid: true size: 80 magic: 2 compresscodec: NONE crc: 970929776

Answer 1

尝试使用以下命令:(添加--deep-iteration标志)

/usr/hdp/current/kafka-broker/bin/kafka-run-class.sh kafka.tools.DumpLogSegments --files 00000000000000000002.log --deep-iteration --print-data-log

从v2.0开始，当传递--print-data-log标志时，默认启用deep-iteration。