Discus Systems PLC - IT Support Company in Birmingham West midlands
0800 880 3360
Posted by Damien Biddulph on Wed 11th Jan 2017

  Business IT Support (4 hour response)
Server Support £166.00 + VAT per month
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On-site Technican £680.00 + VAT per day

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Big Ben during New Year's celebrations in 2016Image copyrightGETTY IMAGES

Image captionThe leap second caused Cloudflare software to 'panic'

Web firm Cloudflare was briefly caught out by the leap second added to the end of 2016.

A small number of the firm's servers failed to handle the added second properly making them return errors.

The problem meant that the sites of some of its customers were hard to reach in the early hours of 2017.

The second was added to compensate for a slowdown in the earth's rotation and helps to co-ordinate time-keeping among nations that use GMT.

Time lost

In a statement, Cloudflare said that its engineers had fixed the problem within 90 minutes of it affecting its servers.

Anyone falling victim would have got an error message saying servers could not be reached rather than seeing the page they wanted to visit.

Content delivery firm Cloudflare acts as a go-between for websites aiming to speed up access to a site as well as stopping malicious traffic and attacks reaching that destination.

It said that the problem affected about 1% of the requests its servers processed during the glitch period.

A detailed analysis of why the bug emerged found that it was triggered by a mismatch between the time-stamps Cloudflare servers were expecting and the ones they actually got from the separate systems that keep time on the wider net.

This caused an internal system to "panic" the firm wrote, causing the server errors.

Source: bbc.co.uk



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