news: add entries for syslog-ng#4440

Signed-off-by: László Várady <[email protected]>
MrAnno · Apr 25, 2023 · 917655d · 917655d
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diff --git a/news/feature-4440-2.md b/news/feature-4440-2.md
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+The new `$RAWMSG_SIZE` hard macro can be used to query the original size of the
+incoming message in bytes.
+
+This information may not be available for all source drivers.
diff --git a/news/feature-4440.md b/news/feature-4440.md
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+`network()`, `syslog()`, `file()`, `http()`: new byte-based metrics for incoming/outgoing events
+
+These metrics show the serialized message sizes (protocol-specific header/framing/etc. length is not included).
+
+```
+syslogng_input_event_bytes_total{id="s_network#0",driver_instance="tcp,127.0.0.1"} 1925529600
+syslogng_output_event_bytes_total{id="d_network#0",driver_instance="tcp,127.0.0.1:5555"} 565215232
+syslogng_output_event_bytes_total{id="d_http#0",driver_instance="http,http://127.0.0.1:8080/"} 1024
+```