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Posted to issues@ignite.apache.org by "Yury Gerzhedovich (JIRA)" <ji...@apache.org> on 2018/10/03 07:42:00 UTC
[jira] [Updated] (IGNITE-8580) Expose interface for IO metrics
spitted by type
[ https://issues.apache.org/jira/browse/IGNITE-8580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yury Gerzhedovich updated IGNITE-8580:
--------------------------------------
Labels: iep-27 (was: )
> Expose interface for IO metrics spitted by type
> -----------------------------------------------
>
> Key: IGNITE-8580
> URL: https://issues.apache.org/jira/browse/IGNITE-8580
> Project: Ignite
> Issue Type: Task
> Components: persistence, sql
> Reporter: Vladimir Ozerov
> Assignee: Yury Gerzhedovich
> Priority: Major
> Labels: iep-27
> Fix For: 2.8
>
>
> 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 types (see org.apache.ignite.internal.processors.cache.persistence.tree.io.PageIO#getType()). Also need to expose IO statistics by aggregate page type like DATA, INDEX, OTHER
>
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