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Posted to issues@ignite.apache.org by "Yury Gerzhedovich (JIRA)" <ji...@apache.org> on 2018/09/25 09:14:00 UTC

[jira] [Updated] (IGNITE-8580) Print page read/write metrics splitted by type

     [ https://issues.apache.org/jira/browse/IGNITE-8580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yury Gerzhedovich updated IGNITE-8580:
--------------------------------------
    Description: 
Currently it is impossible to track how many pages of a certain type were read from or written to disk. This might be very useful for performance tuning and debugging purposes. E.g. excessive page reads may highlight missing SQL index.

We need to expose total physical read/write, logical read pages metrics splitted by aggregate page type DATA, H2, OTHER (see org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO#getType()).

 

  was:
Currently it is impossible to track how many pages of a certain type were read from or written to disk. This might be very useful for performance tuning and debugging purposes. E.g. excessive page reads may highlight missing SQL index.

We need to expose total read/write pages metrics splitted by page type (see org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO#getType()).


> Print page read/write metrics splitted by type
> ----------------------------------------------
>
>                 Key: IGNITE-8580
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8580
>             Project: Ignite
>          Issue Type: Task
>          Components: persistence
>            Reporter: Vladimir Ozerov
>            Assignee: Yury Gerzhedovich
>            Priority: Major
>             Fix For: 2.7
>
>
> Currently it is impossible to track how many pages of a certain type were read from or written to disk. This might be very useful for performance tuning and debugging purposes. E.g. excessive page reads may highlight missing SQL index.
> We need to expose total physical read/write, logical read pages metrics splitted by aggregate page type DATA, H2, OTHER (see org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO#getType()).
>  



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