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authorJianfeng Tan <henry.tjf@antfin.com>2019-08-29 16:23:11 +0000
committerJianfeng Tan <henry.tjf@antfin.com>2019-10-15 16:38:40 +0000
commitaee2c93366f451b9cc0a62430185749556fc3900 (patch)
tree22aae176d3fe1cdc2ebc568a5d1a6d63e837c9be /pkg/sentry
parentdd7d1f825d2f6464b61287b3a324c13139b0d661 (diff)
netstack: add counters for tcp CurrEstab and EstabResets
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
Diffstat (limited to 'pkg/sentry')
-rw-r--r--pkg/sentry/socket/netstack/netstack.go2
1 files changed, 2 insertions, 0 deletions
diff --git a/pkg/sentry/socket/netstack/netstack.go b/pkg/sentry/socket/netstack/netstack.go
index 0ae573b45..6fd43fcbd 100644
--- a/pkg/sentry/socket/netstack/netstack.go
+++ b/pkg/sentry/socket/netstack/netstack.go
@@ -148,6 +148,8 @@ 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."),
+ 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"),
ListenOverflowSynDrop: mustCreateMetric("/netstack/tcp/listen_overflow_syn_drop", "Number of times the listen queue overflowed and a SYN was dropped."),
ListenOverflowAckDrop: mustCreateMetric("/netstack/tcp/listen_overflow_ack_drop", "Number of times the listen queue overflowed and the final ACK in the handshake was dropped."),
ListenOverflowSynCookieSent: mustCreateMetric("/netstack/tcp/listen_overflow_syn_cookie_sent", "Number of times a SYN cookie was sent."),