[
https://issues.apache.org/jira/browse/KAFKA-560?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473829#comment-13473829
]
Neha Narkhede commented on KAFKA-560:
-------------------------------------
OffsetRequest will not give you the time, but the offsets since a time
(approximately).
However, the original proposal for TopicMetadataRequest had a field for last
modified timestamp per partition -
/**
* topic (2 bytes + topic.length)
* number of partitions (4 bytes)
*
* partition id (4 bytes)
*
* does leader exist (1 byte)
* leader info (4 + creator.length + host.length + 4 (port) + 4 (id))
* number of replicas (2 bytes)
* replica info (4 + creator.length + host.length + 4 (port) + 4 (id))
* number of in sync replicas (2 bytes)
* replica info (4 + creator.length + host.length + 4 (port) + 4 (id))
*
* does log metadata exist (1 byte)
* number of log segments (4 bytes)
* total size of log in bytes (8 bytes)
*
* number of log segments (4 bytes)
* beginning offset (8 bytes)
* last modified timestamp (8 bytes)
* size of log segment (8 bytes)
*
*/
However, we haven't really implemented the last few fields of this request,
simply because we couldn't think of a use case. But what you describe seems
useful and maybe we should file a JIRA to get the log segment portion of
TopicMetadatRequest.
> Garbage Collect obsolete topics
> -------------------------------
>
> Key: KAFKA-560
> URL: https://issues.apache.org/jira/browse/KAFKA-560
> Project: Kafka
> Issue Type: New Feature
> Reporter: Jay Kreps
>
> Old junk topics tend to accumulate over time. Code may migrate to use new
> topics leaving the old ones orphaned. Likewise there are some use cases for
> temporary transient topics. It would be good to have a tool that could delete
> any topic that had not been written to in a configurable period of time and
> had no active consumer groups. Something like
> ./bin/delete-unused-topics.sh --last-write [date] --zookeeper [zk_connect]
> This requires API support to get the last update time. I think it may be
> possible to do this through the OffsetRequest now?
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
