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Posted to dev@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2018/05/23 14:20:00 UTC

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

Vladimir Ozerov created IGNITE-8580:
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             Summary: 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
             Fix For: 2.6


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()).



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