[teiid-issues] [JBoss JIRA] (TEIID-2404) Expose buffermanager monitoring properties

[Ramesh Reddy (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-2404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756153#comment-12756153 ] 

Ramesh Reddy edited comment on TEIID-2404 at 2/22/13 11:38 AM:
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# reads from disk = BufferFrontedCacheStore.getStorageReads
# writes to disk = BufferFrontedCacheStore.getStorageWrites
# disk space used = BufferServiceImpl.getUserBufferSpace
# Amount in soft cache, that can be reclaimed in gc = maxReserveBytes

I do not think I understand what it means by "BufferFrontedCacheStore concurrent bits set X block size."

I am not sure if knowing the # objects in memory is any good use.
                
      was (Author: rareddy):
     # reads from disk = BufferFrontedCacheStore.getStorageReads

 # writes to disk = BufferFrontedCacheStore.getStorageWrites

 # disk space used = BufferServiceImpl.getUserBufferSpace

 # Amount in soft cache, that can be reclaimed in gc = maxReserveBytes

I do not think I understand what it means by "BufferFrontedCacheStore concurrent bits set X block size."

I am not sure if knowing the # objects in memory is any good use.
                  
> Expose buffermanager monitoring properties
> ------------------------------------------
>
>                 Key: TEIID-2404
>                 URL: https://issues.jboss.org/browse/TEIID-2404
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Server
>    Affects Versions: 8.3
>            Reporter: Steven Hawkins
>            Assignee: Ramesh Reddy
>             Fix For: 8.3
>
>
> We should expose:
> BufferServiceImpl.getUserBufferSpace - the number of megs currently used by the buffermanager disk storage.
> A rough total of the memory buffer space used can be added, which would be from the BufferFrontedCacheStore concurrent bits set X block size.
> Also the BufferManagerImpl could report the total estimate of objects held in memory.

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