[KAFKA-856] Correlation id for OffsetFetch request (#2) always responds with 0

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.8.0, 0.8.1
• Fix Version/s: 0.8.0
• Component/s: network
• Environment: Linux & Mac
• Assignee: Jun Rao
• Reporter: Milosz Tanski
• Created: 08/Apr/13 16:01
• Updated: 30/May/13 04:44
• Resolved: 30/May/13 04:44

Description

The in the new Kafka when making an OffsetFetch request the correlation id always response is always sent as 0. It doesn't matter if the client request specifies a correlation id other then 0.

Example wireshark capture:

00000000 00 00 00 31 00 07 00 00 00 00 00 2a 00 03 66 6f ...1.... ...*..fo
00000010 6f 00 0a 74 65 73 74 2d 67 72 6f 75 70 00 00 00 o..test- group...
00000020 01 00 0a 74 65 73 74 5f 74 6f 70 69 63 00 00 00 ...test_ topic...
00000030 01 00 00 00 00 .....

Request #1
--------
len: 00 00 00 31
api: 00 07
ver: 00 00
cor: 00 00 00 2a
cid: 2a 00 03 66 6f 6f
....

00000000 00 00 00 2d 00 00 00 2a 00 03 66 6f 6f 00 00 00 ...-...* ..foo...
00000010 01 00 0a 74 65 73 74 5f 74 6f 70 69 63 00 00 00 ...test_ topic...
00000020 01 00 00 00 00 ff ff ff ff ff ff ff ff 00 00 00 ........ ........
00000030 03

Response #1
--------
len: 00 00 00 2d
cor: 00 00 00 2a
cid: 2a 00 03 66 6f 6f
....

00000035 00 00 00 35 00 02 00 00 00 00 00 2a 00 03 66 6f ...5.... ...*..fo
00000045 6f ff ff ff ff 00 00 00 01 00 0a 74 65 73 74 5f o....... ...test_
00000055 74 6f 70 69 63 00 00 00 01 00 00 00 00 ff ff ff topic... ........
00000065 ff ff ff ff fe 00 00 00 01 ........ .

Request #2
---------
len: 00 00 00 35
api: 00 02
ver: 00 00
cor: 00 00 00 2a
cid: 00 03 66 6f 6f

00000031 00 00 00 2a 00 00 00 00 00 00 00 01 00 0a 74 65 ...*.... ......te
00000041 73 74 5f 74 6f 70 69 63 00 00 00 01 00 00 00 00 st_topic ........
00000051 00 00 00 00 00 01 00 00 00 00 00 00 00 00 ........ ......

Response #2:
----------
len: 00 00 00 2a
cor: 00 00 00 00
alen: 00 00 00 01
....

Issue Links

• is related to: KAFKA-642 Protocol tweaks for 0.8