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From "Steve Ratay (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-1911) API doesn't appear to be providing updated swap total memory metric
Date Mon, 22 Apr 2013 13:43:16 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-1911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638001#comment-13638001
] 

Steve Ratay commented on AMBARI-1911:
-------------------------------------

There doesn't appear to be a swap_total graph showing up.  There's only 5 memory metrics being
displayed: mem_buffers, mem_cached, mem_free, mem_shared, and swap_free.  In the Host Overview
section, the overall memory graph shows Swap as "-nan".
                
> API doesn't appear to be providing updated swap total memory metric
> -------------------------------------------------------------------
>
>                 Key: AMBARI-1911
>                 URL: https://issues.apache.org/jira/browse/AMBARI-1911
>             Project: Ambari
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 1.2.2
>            Reporter: Steve Ratay
>
> It's expected that swap_free <= swap_total.  However, this is not true.  It seems
like swap_total might not be updated in the API, as it doesn't come even close to matching
what free shows on the node.
> Ambari:
> "memory" : { "mem_total" : 2820816.0, "swap_free" : 1589343.12222, "mem_buffers" : 34333.5333333,
"mem_shared" : 0.0, "mem_cached" : 328153.844444, "swap_total" : 1013364.0, "mem_free" : 115342.011111
},
> Free on the node:
> sdll4765:~ # free
> total used free shared buffers cached
> Mem: 2820816 2759888 60928 0 34432 393680
> -/+ buffers/cache: 2331776 489040
> Swap: 2359476 772176 1587300

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