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Service Level Agreement

This isn't a zero-tolerance policy, but a series of policy points we work towards when making changes to the site.

Measurements are based on what we can see in graphite which means it's all server-side. Also, we use the upper_90 line since that tracks the more extreme side of performance.

This SLA will probably change over time. Here it is now.

  1. View performance

    upper_90 for server-side rendering of views for GET requests should be under 800ms.

  2. Search availability

    Search should work and return useful results.

    The implication here is that it's not ok to be reindexing into an index that searches are against.

  3. Browser support

    See this page in the wiki:

    https://wiki.mozilla.org/Support/Browser_Support