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Kafka protocol update available?

asked 2019-10-30 19:54:46 +0000

ctoomey gravatar image

Hi, I've just downloaded the latest Wireshark for Mac OS and am using it to view Kafka traffic.

The kafka protocol component is outdated though, as it's unable to deal with the Kafka API versions being used by my software. I see in the decoded packets the following info for each of the different Kafka API keys.

Kafka (OffsetCommit v4 Request)
    Length: 208
    [Response Frame: 1494]
    API Key: OffsetCommit (8)
    API Version: 4
        [Expert Info (Warning/Undecoded): Unsupported OffsetCommit version. Supports v0-3.]
            [Unsupported OffsetCommit version. Supports v0-3.]
            [Severity level: Warning]
            [Group: Undecoded]

Is there somewhere I can get an up-to-date Kafka protocol decoder?

thanks, Chris

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answered 2019-10-30 20:45:03 +0000

Chuckc gravatar image

updated 2019-10-30 20:59:02 +0000

https://bugs.wireshark.org/bugzilla/s...
The code has been done but patch not released to production.
https://code.wireshark.org/review/#/c...

Before:
    { KAFKA_OFFSET_COMMIT,       "OffsetCommit",      0, 3 },
After:
    { KAFKA_OFFSET_COMMIT,                 "OffsetCommit",      0, 7 },
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But builds of bleeding edge Wireshark are available for you to try this feature enhancement.

Jaap gravatar imageJaap ( 2019-10-30 21:36:47 +0000 )edit

Awesome, will try it out, thanks much.

ctoomey gravatar imagectoomey ( 2019-10-30 23:24:32 +0000 )edit

It's working perfectly, nice work!

ctoomey gravatar imagectoomey ( 2019-10-30 23:59:10 +0000 )edit

I just downloaded today's (17.4.2020) most recent bleeding edge version (3.3.0rc0-1044) and it doesn't seem to have support for this Kafka API protocol version. Was there a regression?

orn gravatar imageorn ( 2020-04-17 14:39:32 +0000 )edit

Version 3.2.3 (v3.2.3-0-gf39b50865a13) is able to display version 7.
What issue/error are you seeing?

Chuckc gravatar imageChuckc ( 2020-04-17 15:39:06 +0000 )edit
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Asked: 2019-10-30 19:54:46 +0000

Seen: 1,315 times

Last updated: Oct 30 '19