[jira] [Assigned] (KAFKA-15147) Measure pending and outstanding Remote Segment operations

2023-10-14 Thread Divij Vaidya (Jira)


 [ 
https://issues.apache.org/jira/browse/KAFKA-15147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Divij Vaidya reassigned KAFKA-15147:


Assignee: Christo Lolov  (was: Divij Vaidya)

> Measure pending and outstanding Remote Segment operations
> -
>
> Key: KAFKA-15147
> URL: https://issues.apache.org/jira/browse/KAFKA-15147
> Project: Kafka
>  Issue Type: Improvement
>  Components: core
>Reporter: Jorge Esteban Quilcate Otoya
>Assignee: Christo Lolov
>Priority: Major
>  Labels: tiered-storage
> Fix For: 3.7.0
>
>
> Remote Log Segment operations (copy/delete) are executed by the Remote 
> Storage Manager, and recorded by Remote Log Metadata Manager (e.g. default 
> TopicBasedRLMM writes to the internal Kafka topic state changes on remote log 
> segments).
> As executions run, fail, and retry; it will be important to know how many 
> operations are pending and outstanding over time to alert operators.
> Pending operations are not enough to alert, as values can oscillate closer to 
> zero. An additional condition needs to apply (running time > threshold) to 
> consider an operation outstanding.
> Proposal:
> RemoteLogManager could be extended with 2 concurrent maps 
> (pendingSegmentCopies, pendingSegmentDeletes) `Map[Uuid, Long]` to measure 
> segmentId time when operation started, and based on this expose 2 metrics per 
> operation:
>  * pendingSegmentCopies: gauge of pendingSegmentCopies map
>  * outstandingSegmentCopies: loop over pending ops, and if now - startedTime 
> > timeout, then outstanding++ (maybe on debug level?)
> Is this a valuable metric to add to Tiered Storage? or better to solve on a 
> custom RLMM implementation?
> Also, does it require a KIP?
> Thanks!



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[jira] [Assigned] (KAFKA-15147) Measure pending and outstanding Remote Segment operations

2023-07-27 Thread Divij Vaidya (Jira)


 [ 
https://issues.apache.org/jira/browse/KAFKA-15147?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Divij Vaidya reassigned KAFKA-15147:


Assignee: Divij Vaidya

> Measure pending and outstanding Remote Segment operations
> -
>
> Key: KAFKA-15147
> URL: https://issues.apache.org/jira/browse/KAFKA-15147
> Project: Kafka
>  Issue Type: Improvement
>  Components: core
>Reporter: Jorge Esteban Quilcate Otoya
>Assignee: Divij Vaidya
>Priority: Major
>  Labels: tiered-storage
>
> Remote Log Segment operations (copy/delete) are executed by the Remote 
> Storage Manager, and recorded by Remote Log Metadata Manager (e.g. default 
> TopicBasedRLMM writes to the internal Kafka topic state changes on remote log 
> segments).
> As executions run, fail, and retry; it will be important to know how many 
> operations are pending and outstanding over time to alert operators.
> Pending operations are not enough to alert, as values can oscillate closer to 
> zero. An additional condition needs to apply (running time > threshold) to 
> consider an operation outstanding.
> Proposal:
> RemoteLogManager could be extended with 2 concurrent maps 
> (pendingSegmentCopies, pendingSegmentDeletes) `Map[Uuid, Long]` to measure 
> segmentId time when operation started, and based on this expose 2 metrics per 
> operation:
>  * pendingSegmentCopies: gauge of pendingSegmentCopies map
>  * outstandingSegmentCopies: loop over pending ops, and if now - startedTime 
> > timeout, then outstanding++ (maybe on debug level?)
> Is this a valuable metric to add to Tiered Storage? or better to solve on a 
> custom RLMM implementation?
> Also, does it require a KIP?
> Thanks!



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