envoyproxy/envoy

Connection Limit filter reporting 18 quintillion active connections

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#22 127 ouverte le 12 juil. 2022

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area/ratelimitbughelp wanted

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Description

We have observed that Envoy with the Connection Limit Filter configured, at some point will report 2**64 active connections for the metric envoy.connection_limit.<listener>.active_connections.

This seems suspicious and could be indicative of some integer overflow.

This did not result in a crash, but did result in some connections being limited when it was not intended.

We configured the filter with a max_connections of 56000 and delay of 500ms

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