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From "Ronald Spierenburg (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACE-381) Truncate target logs in a configurable way.
Date Thu, 22 Aug 2013 11:29:52 GMT

    [ https://issues.apache.org/jira/browse/ACE-381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13747445#comment-13747445
] 

Ronald Spierenburg commented on ACE-381:
----------------------------------------

The current store implementation can create multiple (log-store) files, rotating to a new
one when an exception occurs while working with the current one. There is no support for maximum
filesizes etc, the file will keep on growing. 

Because the feedbackchannels will be initialized from a configuration it makes sense to add
the maximum size to this configuration. The files backing this feedbackchannel will be split
according to the maximum size to make sure that each file will be <10% of the maximum.

When a new feedbackchannel logevent is written we will check if the file should be rotated.
If the file should rotate then check if all the files on disk are greater than the maximum
size for this channel. When the maximum is reached remove old files until a certain threshold
is reached (for example 90% of the maximum size). 
This cleanup operation will be fast enough to keep the implementation single-threaded as is
it now.

The storeId for a log must be reused for a long as possible (because of the way the server
processes these logs to search for successful deployments). 

The proposed solution : Add the max filesize (and perhaps other usefull properties) to the
feedbackchannel configuration, create multiple log-files <10% of maxSize while reusing
the storeId, remove old files when maximum is reached.
                
> Truncate target logs in a configurable way.
> -------------------------------------------
>
>                 Key: ACE-381
>                 URL: https://issues.apache.org/jira/browse/ACE-381
>             Project: ACE
>          Issue Type: Improvement
>          Components: Log, Management Agent
>            Reporter: Marcel Offermans
>            Assignee: Angelo van der Sijpt
>
> Target logs should be truncated to a fixed maximum size to prevent disk storage from
overflowing.

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