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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ARTEMIS-1663) Add enhanced message count and size metrics for Queues
Date Wed, 07 Feb 2018 14:20:00 GMT

    [ https://issues.apache.org/jira/browse/ARTEMIS-1663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16355496#comment-16355496
] 

ASF GitHub Bot commented on ARTEMIS-1663:
-----------------------------------------

Github user cshannon commented on the issue:

    https://github.com/apache/activemq-artemis/pull/1853
  
    @clebertsuconic - The metric in the page counters is persisted along with the page counters
now.  When the page counters are written to the journal that metric is encoded to disk and
reloaded on restart.
    
     Older versions of the journal are compatible, they will just not have that size value
loaded as it won't have been saved previously.


> Add enhanced message count and size metrics for Queues
> ------------------------------------------------------
>
>                 Key: ARTEMIS-1663
>                 URL: https://issues.apache.org/jira/browse/ARTEMIS-1663
>             Project: ActiveMQ Artemis
>          Issue Type: New Feature
>          Components: Broker
>    Affects Versions: 2.4.0
>            Reporter: Christopher L. Shannon
>            Assignee: Christopher L. Shannon
>            Priority: Major
>
> The purpose of this Jira is to enhance the message count metrics and to add size metrics
for Queues.   By size metrics I mean the encoded size of all the messages (for large messages
this will include body as well).  Right now we track memory usage but it is also very useful
to know exactly how much data is pending on a Queue to be consumed.  
> The scope of this will be support for tracking the count/size of pending messages,
count/size of delivering messages, and count/size of scheduled messages.  For each of these
categories durable size metrics will be tracked as well. The paging store will also support
tracking of size metrics as well.
> These new metrics will be exposed through JMX to allow users to view the statistics. 
Also by tracking these new values it will allow for enhanced features in the future (ie new
flow control options)
>  
>  



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