Thanks very much.

On Tue, May 19, 2015 at 5:05 PM, Marcel Ruiz Forns <mforns@wikimedia.org> wrote:

The data for this period has been back-filled with success.

Cheers!

On Fri, May 8, 2015 at 4:23 PM, Aaron Halfaker <ahalfaker@wikimedia.org> wrote:

Thank you!

On Fri, May 8, 2015 at 5:12 AM, Marcel Ruiz Forns <mforns@wikimedia.org> wrote:

EventLogging suffered from performance problems and data loss from Tuesday 2015-05-05 22:00 UTC to Wednesday 2015-05-06 20:00 UTC (22 hours).

During that period, an exceptional amount of events were sent to EL server for a given schema. The system could not handle them properly, and this caused data loss (30%-40% during the period) and some small gaps in the db. All schemas were affected.

The missing data will be backfilled during this week.

Phab Task: https://phabricator.wikimedia.org/T98588

Incident documentation:

https://wikitech.wikimedia.org/wiki/Incident_documentation/20150506-EventLogging

Cheers,

Marcel

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