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Redis architecture overview
This filter should be configured with the name envoy.filters.network.redis_proxy.
Statistics
Every configured Redis proxy filter has statistics rooted at redis.<stat_prefix>. with the following statistics:
Name | Type | Description |
|---|---|---|
downstream_cx_active | Gauge | Total active connections |
downstream_cx_protocol_error | Counter | Total protocol errors |
downstream_cx_rx_bytes_buffered | Gauge | Total received bytes currently buffered |
downstream_cx_rx_bytes_total | Counter | Total bytes received |
downstream_cx_total | Counter | Total connections |
downstream_cx_tx_bytes_buffered | Gauge | Total sent bytes currently buffered |
downstream_cx_tx_bytes_total | Counter | Total bytes sent |
downstream_cx_drain_close | Counter | Number of connections closed due to draining |
downstream_rq_active | Gauge | Total active requests |
downstream_rq_total | Counter | Total requests |
Splitter statistics
The Redis filter will gather statistics for the command splitter in the redis.<stat_prefix>.splitter. with the following statistics:
Name | Type | Description |
|---|---|---|
invalid_request | Counter | Number of requests with an incorrect number of arguments |
unsupported_command | Counter | Number of commands issued which are not recognized by the command splitter |
Per command statistics
The Redis filter will gather statistics for commands in the redis.<stat_prefix>.command.<command>. namespace. By default latency stats are in milliseconds and can be changed to microseconds by setting the configuration parameter latency_in_micros to true.
Name | Type | Description |
|---|---|---|
total | Counter | Number of commands |
success | Counter | Number of commands that were successful |
error | Counter | Number of commands that returned a partial or complete error response |
latency | Histogram | Command execution time in milliseconds |
Runtime
The Redis proxy filter supports the following runtime settings:
redis.drain_close_enabled
% of connections that will be drain closed if the server is draining and would otherwise attempt a drain close. Defaults to 100.
