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Posted to dev@kafka.apache.org by "Todd Palino (JIRA)" <ji...@apache.org> on 2014/08/11 18:36:14 UTC
[jira] [Updated] (KAFKA-1588) Offset response does not support two
requests for the same topic/partition combo
[ https://issues.apache.org/jira/browse/KAFKA-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Palino updated KAFKA-1588:
-------------------------------
Description:
When performing an OffsetRequest, if you request the same topic and partition combination in a single request more than once (for example, if you want to get both the head and tail offsets for a partition in the same request), you will get a response for both, but they will be the same offset.
We identified that the problem is that when the offset response is assembled, a map is used to store the offset info before it is converted to the response format and sent to the client. Therefore, the second request for a topic/partition combination will overwrite the offset from the first request.
was:
When performing an OffsetFetchRequest, if you request the same topic and partition combination in a single request more than once (for example, if you want to get both the head and tail offsets for a partition in the same request), you will get a response for both, but they will be the same offset.
We identified that the problem is that when the offset response is assembled, a map is used to store the offset info before it is converted to the response format and sent to the client. Therefore, the second request for a topic/partition combination will overwrite the offset from the first request.
Thanks, Jun, I had written that incorrectly. It is the OffsetRequest that manifests the problem. I've edited the description.
> Offset response does not support two requests for the same topic/partition combo
> --------------------------------------------------------------------------------
>
> Key: KAFKA-1588
> URL: https://issues.apache.org/jira/browse/KAFKA-1588
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8.2
> Reporter: Todd Palino
>
> When performing an OffsetRequest, if you request the same topic and partition combination in a single request more than once (for example, if you want to get both the head and tail offsets for a partition in the same request), you will get a response for both, but they will be the same offset.
> We identified that the problem is that when the offset response is assembled, a map is used to store the offset info before it is converted to the response format and sent to the client. Therefore, the second request for a topic/partition combination will overwrite the offset from the first request.
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