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https://issues.apache.org/jira/browse/KAFKA-6181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16802420#comment-16802420
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洪朝阳 commented on KAFKA-6181:
----------------------------
Although I am new to Kafka, I think it's a little easy.
> Examining log messages with {{--deep-iteration}} should show superset of
> fields
> -------------------------------------------------------------------------------
>
> Key: KAFKA-6181
> URL: https://issues.apache.org/jira/browse/KAFKA-6181
> Project: Kafka
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.11.0.0
> Reporter: Yeva Byzek
> Priority: Minor
> Labels: newbie
>
> Printing log data on Kafka brokers using {{kafka.tools.DumpLogSegments}}:
> {{--deep-iteration}} should show a superset of fields in each message, as
> compared to without this parameter, however some fields are missing. Impact:
> users need to execute both commands to get the full set of fields.
> {noformat}
> kafka-run-class kafka.tools.DumpLogSegments \
> --print-data-log \
> --files 00000000000000000000.log
> Dumping 00000000000000000000.log
> Starting offset: 0
> baseOffset: 0 lastOffset: 35 baseSequence: -1 lastSequence: -1 producerId: -1
> producerEpoch: -1 partitionLeaderEpoch: 0 isTransactional: false position: 0
> CreateTime: 1509987569448 isvalid: true size: 3985 magic: 2 compresscodec:
> NONE crc: 4227905507
> {noformat}
> {noformat}
> kafka-run-class kafka.tools.DumpLogSegments \
> --print-data-log \
> --files 00000000000000000000.log \
> --deep-iteration
> Dumping 00000000000000000000.log
> Starting offset: 0
> offset: 0 position: 0 CreateTime: 1509987569420 isvalid: true keysize: -1
> valuesize: 100
> magic: 2 compresscodec: NONE producerId: -1 sequence: -1 isTransactional:
> false headerKeys: [] payload:
> SSXVNJHPDQDXVCRASTVYBCWVMGNYKRXVZXKGXTSPSJDGYLUEGQFLAQLOCFLJBEPOWFNSOMYARHAOPUFOJHHDXEHXJBHW
> {noformat}
> Notice, for example, that {{partitionLeaderEpoch}} and {{crc}} are missing.
> Print these and all missing fields.
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