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From Olivér Szabó (JIRA) <j...@apache.org>
Subject [jira] [Updated] (AMBARI-20378) LogFeeder: Add de-duplication support
Date Thu, 09 Mar 2017 15:59:38 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-20378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Olivér Szabó updated AMBARI-20378:
----------------------------------
    Attachment:     (was: AMBARI-20378.patch)

> LogFeeder: Add de-duplication support
> -------------------------------------
>
>                 Key: AMBARI-20378
>                 URL: https://issues.apache.org/jira/browse/AMBARI-20378
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-logsearch
>    Affects Versions: 2.5.0
>            Reporter: Olivér Szabó
>            Assignee: Olivér Szabó
>             Fix For: trunk
>
>         Attachments: AMBARI-20378.patch
>
>
> Add de-duplication support to logfeeder.
> For handling duplications, it will be an LRU cache for every input.
> It can be set up at input config block. For example (the values below are the defaults):
> {code:java}
> {
>   "input": [
>     {
>       ...
>       "cache_enabled" : "true",
>       "cache_size" : "100",
>       "cache_dedup_interval" : "1000",
>       "cache_last_dedup_enabled" : "false",
>       "cache_key_field" : "log_message"
>     }
>   ] ...
> {code}
> {{cache_dedup_interval}} : if the interval (timestamp - date difference) is not reached
between 2 log messages (same content), then the new log will be dropped. 
> {{cache_last_dedup_enabled}}: if its enabled and the new log message is the same as the
last one, the new log will be dropped. (dedup interval wont have impact on that feature)
> {{cache_key_field}} : field of the log message which will be compared and stored in the
cache (as keys)



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