From b429ed8c1e06f8f88b1e4fcd3833da837a1f08c7 Mon Sep 17 00:00:00 2001 From: Joris Baum Date: Mon, 16 Feb 2026 15:48:14 +0100 Subject: [PATCH 1/2] Document HEALTH --- deploy-apps/streaming-logs.html.md.erb | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/deploy-apps/streaming-logs.html.md.erb b/deploy-apps/streaming-logs.html.md.erb index 4e9e956d..83e22e7e 100644 --- a/deploy-apps/streaming-logs.html.md.erb +++ b/deploy-apps/streaming-logs.html.md.erb @@ -149,6 +149,10 @@ For example: 2016-06-14T13:44:38.14-0700 [CELL/0] OUT Successfully created container +### HEALTH + +The Diego Cell emits `HEALTH` logs when running health check actions for an app. These logs are generated by the health check binary that monitors app instances. By default, health check log output is suppressed unless an error occurs. + ## Writing to the log from your app From f8575c12f8c3676d5e9c792e4f6702889f3c4058 Mon Sep 17 00:00:00 2001 From: Joris Baum Date: Mon, 16 Feb 2026 15:48:31 +0100 Subject: [PATCH 2/2] Document SYS source type --- deploy-apps/streaming-logs.html.md.erb | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/deploy-apps/streaming-logs.html.md.erb b/deploy-apps/streaming-logs.html.md.erb index 83e22e7e..2e2890ec 100644 --- a/deploy-apps/streaming-logs.html.md.erb +++ b/deploy-apps/streaming-logs.html.md.erb @@ -97,6 +97,10 @@ For more information about Zipkin tracing, see [Zipkin tracking in HTTP headers] Loggregator emits `LGR` logs to indicate problems with logging. Examples include `can't reach syslog drain url` and `dropped log messages due to high rate`. +### SYS + +The Syslog Agent emits `SYS` logs to indicate problems with syslog drain delivery. This log type is emitted alongside `LGR` logs when messages are dropped due to slow drain consumption or connectivity issues. The `SYS` source type includes the source index of the Syslog Agent instance. + ### APP Every app emits `APP` logs to Loggregator.