Disclosures

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21 Jun 2022, 02:45 PM

Issue with the display of orders, holdings & positions (NSE, BSE, MCX)

Duration: 12:04 PM to 12:50 PM

Incident: Connectivity to our trading platforms (along with many other websites across the globe) was impacted intermittently from 12.04 PM to 12.50 PM on 21-06-2022 owing to intermittent connectivity issues via the Cloudflare network for users on certain ISPs. This caused  intermittent issue with the display of orders, holdings & positions temporarily on Kite for some of our users. The users could reach our website post multiple retries even when the issue was ongoing. For those users who were impacted Call and trade desk was open.

Cause:

  1. The internet connectivity to our trading platform was impacted due to a problem at Cloudflare’s end (Cloudflare is a vendor that provides CDN, network capacity, and DDoS protection to Zerodha’s public-facing internet properties).

  2. The issue happened outside our infra at the network capacity provider's BGP configuration.

  3. The issue was at the Border Gateway Protocol (BGP) level, affecting all the Disaster Recover (DR) sites across all networks across countries.

  4. Cloudflare has published a postmortem report about the issue explaining in detail as to what went wrong.


Approx. clients affected: 68000 to 80000

Update: 14-07-2022 - Root cause analysis (RCA) - RCA glitch dated 21-06-2022