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From "Hiram Chirino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APLO-276) Negative "swapped in" values reported by REST API
Date Tue, 18 Dec 2012 16:06:16 GMT

    [ https://issues.apache.org/jira/browse/APLO-276?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534999#comment-13534999
] 

Hiram Chirino commented on APLO-276:
------------------------------------

Ok I found a bug where stomp clients over websockets were not properly getting disconnect
from the broker.  Does not really seem like this could be causing your issue, but it might
have something to do with it. You probably eventually ended up with dead topic subscriptions
that would remained attached to the topic even after the websocket had been killed.  

I just deployed build: apache-apollo-99-trunk-20121218.160114-146-unix-distro.tar.gz which
should at least fix that problem.

I have not been able to reproduce the negative numbers.  Do you guys have a quick way to reliably
reproduce it?
                
> Negative "swapped in" values reported by REST API
> -------------------------------------------------
>
>                 Key: APLO-276
>                 URL: https://issues.apache.org/jira/browse/APLO-276
>             Project: ActiveMQ Apollo
>          Issue Type: Bug
>            Reporter: Lionel Cons
>
> Apollo sometimes report negative values for the "swapped in" messages. Querying /dest-metrics
via REST I can currently see:
> {
>   'consumer_count' => 5,
>   'consumer_counter' => 49,
>   'current_time' => '1355129045937',
>   'dequeue_item_counter' => 46637,
>   'dequeue_size_counter' => 76516044,
>   'dequeue_ts' => '1355129045564',
>   'enqueue_item_counter' => 12278,
>   'enqueue_size_counter' => 19169564,
>   'enqueue_ts' => '1355129045698',
>   'expired_item_counter' => 0,
>   'expired_size_counter' => 0,
>   'expired_ts' => '1355128842177',
>   'nack_item_counter' => 0,
>   'nack_size_counter' => 0,
>   'nack_ts' => '1355128842177',
>   'objects' => 11,
>   'producer_count' => 54,
>   'producer_counter' => 142,
>   'queue_items' => 0,
>   'queue_size' => 0,
>   'swap_in_item_counter' => 7722,
>   'swap_in_size_counter' => 16214004,
>   'swap_out_item_counter' => 7011,
>   'swap_out_size_counter' => 15197687,
>   'swapped_in_items' => -6046,
>   'swapped_in_size' => -9274521,
>   'swapped_in_size_max' => 9175040,
>   'swapping_in_size' => 0,
>   'swapping_out_size' => 0
> };

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