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consul/.changelog/19339.txt

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Add grpc keepalive configuration. (#19339) Prior to the introduction of this configuration, grpc keepalive messages were sent after 2 hours of inactivity on the stream. This posed issues in various scenarios where the server-side xds connection balancing was unaware that envoy instances were uncleanly killed / force-closed, since the connections would only be cleaned up after ~5 minutes of TCP timeouts occurred. Setting this config to a 30 second interval with a 20 second timeout ensures that at most, it should take up to 50 seconds for a dead xds connection to be closed.
2023-10-24 13:05:31 +00:00
```release-note:bug
connect: Fix bug where uncleanly closed xDS connections would influence connection balancing for too long and prevent envoy instances from starting. Two new configuration fields
`performance.grpc_keepalive_timeout` and `performance.grpc_keepalive_interval` now exist to allow for configuration on how often these dead connections will be cleaned up.
```