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From "Alexey Goncharuk (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-5473) Create ignite troubleshooting logger
Date Fri, 23 Jun 2017 09:48:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-5473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexey Goncharuk updated IGNITE-5473:
-------------------------------------
    Labels: important observability  (was: important)

> Create ignite troubleshooting logger
> ------------------------------------
>
>                 Key: IGNITE-5473
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5473
>             Project: Ignite
>          Issue Type: Improvement
>          Components: general
>    Affects Versions: 2.0
>            Reporter: Alexey Goncharuk
>            Priority: Critical
>              Labels: important, observability
>             Fix For: 2.2
>
>
> Currently, we have two extremes of logging - either INFO wich logs almost nothing, or
DEBUG, which will pollute logs with too verbose messages.
> We should create a 'troubleshooting' logger, which should be easily enabled (via a system
property, for example) and log all stability-critical node and cluster events:
>  * Connection events (both communication and discovery), handshake status
>  * ALL ignored messages and skipped actions (even those we assume are safe to ignore)
>  * Partition exchange stages and timings
>  * Verbose discovery state changes (this should make it easy to understand the reason
for 'Node has not been connected to the topology')
>  * Transaction failover stages and actions
>  * All unlogged exceptions
>  * Responses that took more than N milliseconds when in normal they should return right
away
>  * Long discovery SPI messages processing times
>  * Managed service deployment stages
>  * Marshaller mappings registration and notification
>  * Binary metadata registration and notification
>  * Continuous query registration / notification
> (add more)
> The amount of logging should be chosen accurately so that it would be safe to enable
this logger in production clusters.



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