[jira] [Resolved] (STORM-540) Change default time format in logs to ISO8601 in order to include timezone

["P. Taylor Goetz (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-540?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

P. Taylor Goetz resolved STORM-540.
-----------------------------------
       Resolution: Fixed
    Fix Version/s: 0.9.3-rc2

Merged. Thanks!

> Change default time format in logs to ISO8601 in order to include timezone
> --------------------------------------------------------------------------
>
>                 Key: STORM-540
>                 URL: https://issues.apache.org/jira/browse/STORM-540
>             Project: Apache Storm
>          Issue Type: Improvement
>            Reporter: Michael Pershyn
>            Assignee: Michael Pershyn
>            Priority: Trivial
>             Fix For: 0.9.3-rc2
>
>
> Now default time format in logback/cluster.xml is:
> {code}
> <pattern>%d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n</pattern>
> {code}
> It is human-readable, but does not include timezone, and cluster log files configuration have to be changed for error-free machine processing, for example using Logstash->ElasticSearch->Kibana pipeline.
> If some of the cluster nodes time is not correctly configured it will take lots of time to find out an issue with topology. Especially if there is such a pipeline and time is converted from times in logs (in host timezones) to timestamps (in UTC).
> I have checked out time formats, the most reasonable seems to be [ISO8601|http://en.wikipedia.org/wiki/ISO_8601]. It has all the fields, timezone, is similar to format that is currently used, but is a standard and is widely supported.
> In regards to logging pipelines, logstash's grok [has out of the box|http://grokdebug.herokuapp.com/patterns#] rule for TIMESTAMP_ISO8601.



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