logpolicy: allow longer idle log upload connections

From a packet trace we have seen log connections being closed
prematurely by the client, resulting in unnecessary extra TLS setup
traffic.

Updates #3363
Updates tailscale/corp#9230
Updates tailscale/corp#8564

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker 2024-02-16 14:36:20 -08:00 committed by James Tucker
parent 70b7201744
commit 6c3899e6ee
1 changed files with 5 additions and 0 deletions

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@ -769,6 +769,11 @@ func NewLogtailTransport(host string, netMon *netmon.Monitor, logf logger.Logf)
}
tr.DialContext = MakeDialFunc(netMon, logf)
// We're uploading logs ideally infrequently, with specific timing that will
// change over time. Try to keep the connection open, to avoid repeatedly
// paying the cost of TLS setup.
tr.IdleConnTimeout = time.Hour
// We're contacting exactly 1 hostname, so the default's 100
// max idle conns is very high for our needs. Even 2 is
// probably double what we need: