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Posted to commits@cassandra.apache.org by "Stu Hood (JIRA)" <ji...@apache.org> on 2011/07/28 02:25:09 UTC

[jira] [Created] (CASSANDRA-2962) Monitoring for RoundRobinScheduler

Monitoring for RoundRobinScheduler
----------------------------------

                 Key: CASSANDRA-2962
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
             Project: Cassandra
          Issue Type: New Feature
          Components: API, Core
            Reporter: Stu Hood
            Assignee: Stu Hood
             Fix For: 1.0


RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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[jira] [Commented] (CASSANDRA-2962) Metrics for RoundRobinScheduler

Posted by "Nirmal Ranganathan (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/CASSANDRA-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13078913#comment-13078913 ] 

Nirmal Ranganathan commented on CASSANDRA-2962:
-----------------------------------------------

+1 the change looks good. Nice to be able to see the latencies.

> Metrics for RoundRobinScheduler
> -------------------------------
>
>                 Key: CASSANDRA-2962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 1.0
>
>         Attachments: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt
>
>
> RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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[jira] [Updated] (CASSANDRA-2962) Monitoring for RoundRobinScheduler

Posted by "Stu Hood (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CASSANDRA-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stu Hood updated CASSANDRA-2962:
--------------------------------

    Attachment: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt

Encapsulates the (fair) SynchronousQueue at the center of RoundRobinScheduler into a WeightedQueue class, and expose latencies on an MBean per queue.

> Monitoring for RoundRobinScheduler
> ----------------------------------
>
>                 Key: CASSANDRA-2962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 1.0
>
>         Attachments: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt
>
>
> RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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[jira] [Resolved] (CASSANDRA-2962) Metrics for RoundRobinScheduler

Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CASSANDRA-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis resolved CASSANDRA-2962.
---------------------------------------

    Resolution: Fixed

committed

> Metrics for RoundRobinScheduler
> -------------------------------
>
>                 Key: CASSANDRA-2962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 1.0
>
>         Attachments: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt
>
>
> RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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[jira] [Updated] (CASSANDRA-2962) Metrics for RoundRobinScheduler

Posted by "Jonathan Ellis (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CASSANDRA-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-2962:
--------------------------------------

    Reviewer: rnirmal

> Metrics for RoundRobinScheduler
> -------------------------------
>
>                 Key: CASSANDRA-2962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 1.0
>
>         Attachments: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt
>
>
> RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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[jira] [Updated] (CASSANDRA-2962) Metrics for RoundRobinScheduler

Posted by "Stu Hood (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/CASSANDRA-2962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stu Hood updated CASSANDRA-2962:
--------------------------------

    Summary: Metrics for RoundRobinScheduler  (was: Monitoring for RoundRobinScheduler)

> Metrics for RoundRobinScheduler
> -------------------------------
>
>                 Key: CASSANDRA-2962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2962
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: API, Core
>            Reporter: Stu Hood
>            Assignee: Stu Hood
>             Fix For: 1.0
>
>         Attachments: 0001-Use-a-named-queue-subclass-with-a-timestamp-and-expose.txt
>
>
> RoundRobinScheduler currently silently adds latency to requests when they need to be throttled: we should add monitoring to allow us to determine how much latency is being added.

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