[jira] [Created] (AMBARI-10249) Add a Log Appender for Alert State Change Events

["Jonathan Hurley (JIRA)" <ji...@apache.org>]

Jonathan Hurley created AMBARI-10249:
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             Summary: Add a Log Appender for Alert State Change Events
                 Key: AMBARI-10249
                 URL: https://issues.apache.org/jira/browse/AMBARI-10249
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
             Fix For: 2.1.0


Currently there is no permanent audit trail for alert state change events. Although the history and notifications of an alert are kept in the database, a deletion of the alert definition will cascade to its children, thus removing the history. 

Similar to {{ambari.config-changes.file}}, create a new logger that logs the following information:
- Alert state changed events
-- date, state, name, threshold values (if any), text, instance, label

{code}
ambari.alert-state-changes.file=ambari-alert-state-changes.log

# Log config changes
log4j.logger.alerts=INFO,alerts
log4j.additivity.alerts=false
log4j.appender.alerts=org.apache.log4j.FileAppender
log4j.appender.alerts.File=${ambari.log.dir}/${ambari.alert-state-changes.file}
log4j.appender.alerts.layout=org.apache.log4j.PatternLayout
log4j.appender.alerts.layout.ConversionPattern=%d{ISO8601} %5p - %m%n

private static final Logger alertLogger = LoggerFactory.getLogger("alerts");
{code}



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