From 7e6fbc6afe797752efe066a8aa86f9eca973f3a4 Mon Sep 17 00:00:00 2001
From: Mithun Iyer <iyerm@google.com>
Date: Tue, 21 Jan 2020 14:47:04 -0800
Subject: Add a new TCP stat for current open connections.
Such a stat accounts for all connections that are currently
established and not yet transitioned to close state.
Also fix bug in double increment of CurrentEstablished stat.
Fixes #1579
PiperOrigin-RevId: 290827365
---
pkg/sentry/socket/netstack/netstack.go | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'pkg/sentry/socket/netstack')
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index 2662fbc0f..318acbeff 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -150,7 +150,8 @@ var Metrics = tcpip.Stats{
TCP: tcpip.TCPStats{
ActiveConnectionOpenings: mustCreateMetric("/netstack/tcp/active_connection_openings", "Number of connections opened successfully via Connect."),
PassiveConnectionOpenings: mustCreateMetric("/netstack/tcp/passive_connection_openings", "Number of connections opened successfully via Listen."),
- CurrentEstablished: mustCreateMetric("/netstack/tcp/current_established", "Number of connections in either ESTABLISHED or CLOSE-WAIT state now."),
+ CurrentEstablished: mustCreateMetric("/netstack/tcp/current_established", "Number of connections in ESTABLISHED state now."),
+ CurrentConnected: mustCreateMetric("/netstack/tcp/current_open", "Number of connections that are in connected state."),
EstablishedResets: mustCreateMetric("/netstack/tcp/established_resets", "Number of times TCP connections have made a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state"),
EstablishedClosed: mustCreateMetric("/netstack/tcp/established_closed", "number of times established TCP connections made a transition to CLOSED state."),
EstablishedTimedout: mustCreateMetric("/netstack/tcp/established_timedout", "Number of times an established connection was reset because of keep-alive time out."),
--
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