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Posted to issues@ozone.apache.org by "Arpit Agarwal (Jira)" <ji...@apache.org> on 2020/06/02 22:22:00 UTC
[jira] [Updated] (HDDS-1427) Differentiate log messages by service
instance in test output
[ https://issues.apache.org/jira/browse/HDDS-1427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Agarwal updated HDDS-1427:
--------------------------------
Target Version/s: 0.7.0 (was: 0.5.0)
> Differentiate log messages by service instance in test output
> -------------------------------------------------------------
>
> Key: HDDS-1427
> URL: https://issues.apache.org/jira/browse/HDDS-1427
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Components: test
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Priority: Major
>
> When running tests, the log output from multiple services is interleaved. This makes it very hard to follow the sequence of events.
> This is especially seen with MiniOzoneChaosCluster which starts 20 DataNodes in the same process.
> One way we can do this is by using [Log4j NDC|https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/NDC.html] or [slf4j MDC|https://www.slf4j.org/api/org/slf4j/MDC.html] to print the PID and thread name/thread ID. It probably won't be a simple change.
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