user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 8/9] net_reader: set SO_KEEPALIVE on all Net::NNTP sockets
Date: Sat, 18 Sep 2021 09:33:31 +0000	[thread overview]
Message-ID: <20210918093332.16054-9-e@80x24.org> (raw)
In-Reply-To: <20210918093332.16054-1-e@80x24.org>

SO_KEEPALIVE can prevent stuck processes and is safe to enable
unconditionally on all TCP sockets (like git, and the rest of
public-inbox does).  Verified via strace on both NNTP and NNTPS
with and without nntp.proxy=socks5h://...
---
 lib/PublicInbox/NetReader.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/NetReader.pm b/lib/PublicInbox/NetReader.pm
index 403df952..28e20d38 100644
--- a/lib/PublicInbox/NetReader.pm
+++ b/lib/PublicInbox/NetReader.pm
@@ -182,6 +182,7 @@ sub nn_new ($$$) {
 	} else {
 		$nn = Net::NNTP->new(%$nn_arg) or return;
 	}
+	setsockopt($nn, Socket::SOL_SOCKET(), Socket::SO_KEEPALIVE(), 1);
 
 	# default to using STARTTLS if it's available, but allow
 	# it to be disabled for localhost/VPN users

  parent reply	other threads:[~2021-09-18  9:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-18  9:33 [PATCH 0/9] lei: a bunch of random stuff Eric Wong
2021-09-18  9:33 ` [PATCH 1/9] lei: lock worker counts Eric Wong
2021-09-18  9:33 ` [PATCH 2/9] lei_mail_sync: rely on flock(2), avoid IPC Eric Wong
2021-09-18  9:33 ` [PATCH 3/9] lei_mail_sync: set nodatacow on btrfs Eric Wong
2021-09-18  9:33 ` [PATCH 4/9] ds: support add unique timers Eric Wong
2021-09-18  9:33 ` [PATCH 5/9] net_reader: tie SocksDebug to {imap,nntp}.Debug Eric Wong
2021-09-18  9:33 ` [PATCH 6/9] net_reader: detect IMAP failures earlier Eric Wong
2021-09-18  9:33 ` [PATCH 7/9] net_reader: support imaps:// w/ socks5h:// proxy Eric Wong
2021-09-18 10:41   ` Eric Wong
2021-09-18  9:33 ` Eric Wong [this message]
2021-09-18  9:33 ` [PATCH 9/9] lei up: automatically use dt: for remote externals Eric Wong
2021-09-18 14:31   ` Kyle Meyer
2021-09-18 20:30     ` Eric Wong

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