Document Impact of Jan 8&9 Traffic Data Loss
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	• odimitrijevic
	Jan 10 2023, 5:07 PM

Description

On Jan 8 and Jan 9 there was some data loss from caching nodes in Eqsin. While the traffic loss is not significant, this task is to document the incident and estimate the impact on pageview and other traffic data.

Event Timeline

• odimitrijevic created this task.Jan 10 2023, 5:07 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 10 2023, 5:07 PM

• EChetty moved this task from Sprint 05-06 to Next Up (revisit every 2 sprints) on the Data Pipelines board.Jan 17 2023, 11:40 AM

• EChetty edited projects, added Data Pipelines; removed Data Pipelines (Sprint 05-06).

@JAllemandou Can you please provide some guidance on how to go about estimating the data loss?

We need confirmation from either the SRE or Traffic team that pages were served in eqsin but not reported in webrequest logs. With that, we can then use our webrequest statistics table (wmf_raw.webrequest_sequence_stats) to get how much data was lost.

Snwachukwu added a project: Traffic.Jan 23 2023, 3:37 PM

Maintenance_bot added a project: SRE.Jan 23 2023, 3:45 PM

Traffic Can you please confirm that there were cases of pages served in eqsin but not reported in webrequest logs.