user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 4/9] lei: write daemon errors to the sock directory
Date: Tue, 19 Jan 2021 09:34:30 +0000	[thread overview]
Message-ID: <20210119093435.17955-5-e@80x24.org> (raw)
In-Reply-To: <20210119093435.17955-1-e@80x24.org>

Most everything should be captured by the __WARN__ handlers and
routed to syslog, but it appears Perl may write to stderr in
some emergency cases, as can libc or other libraries.  Just
point it to a small file that's cleared on reboot.
---
 lib/PublicInbox/LEI.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/PublicInbox/LEI.pm b/lib/PublicInbox/LEI.pm
index 802d2cd9..e4f8bedb 100644
--- a/lib/PublicInbox/LEI.pm
+++ b/lib/PublicInbox/LEI.pm
@@ -830,7 +830,9 @@ sub lazy_start {
 	require PublicInbox::Listener;
 	require PublicInbox::EOFpipe;
 	(-p STDOUT) or die "E: stdout must be a pipe\n";
-	open(STDIN, '+<', '/dev/null') or die "redirect stdin failed: $!";
+	my ($err) = ($path =~ m!\A(.+?/)[^/]+\z!);
+	$err .= 'errors.log';
+	open(STDIN, '+>>', $err) or die "open($err): $!";
 	POSIX::setsid() > 0 or die "setsid: $!";
 	my $pid = fork // die "fork: $!";
 	return if $pid;

  parent reply	other threads:[~2021-01-19  9:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-19  9:34 [PATCH 0/9] lei bugfixes and error handling Eric Wong
2021-01-19  9:34 ` [PATCH 1/9] lei q: start ->mset while query_prepare runs Eric Wong
2021-01-19  9:34 ` [PATCH 2/9] lei q: fix SIGPIPE handling from lei2mail workers Eric Wong
2021-01-19  9:34 ` [PATCH 3/9] lei q: do not spawn MUA early Eric Wong
2021-01-19  9:34 ` Eric Wong [this message]
2021-01-19  9:34 ` [PATCH 5/9] lei q: fix augment of compressed mailboxes Eric Wong
2021-01-19  9:34 ` [PATCH 6/9] lei_overview: do not write if $lei->{1} is gone Eric Wong
2021-01-19  9:34 ` [PATCH 7/9] t/lei: fix double-running of socket test with oneshot Eric Wong
2021-01-19  9:34 ` [PATCH 8/9] lei: test some likely errors due to misuse Eric Wong
2021-01-19  9:34 ` [PATCH 9/9] lei_overview: start implementing format detection Eric Wong
2021-01-20  5:04 ` [PATCH 0/7] lei: fixes piled higher and deeper Eric Wong
2021-01-20  5:16   ` misnumbered, should be [PATCH 10/9]..[PATCH 16/9] :x Eric Wong
2021-01-20  5:04 ` [PATCH 1/7] lei: allow more mbox inode types Eric Wong
2021-01-20  5:04 ` [PATCH 2/7] lei: exit code in oneshot mode Eric Wong
2021-01-20  5:04 ` [PATCH 3/7] overidx: eidx_prep: fix leftover dbh reference Eric Wong
2021-01-20  5:04 ` [PATCH 4/7] lei q: cleanup store initialization Eric Wong
2021-01-20  5:04 ` [PATCH 5/7] lei: dump and clear errors.log in daemon mode Eric Wong
2021-01-20  5:04 ` [PATCH 6/7] lei_xsearch: keep l2m->{-wq_s1} while preparing query Eric Wong
2021-01-20  5:04 ` [PATCH 7/7] lei_to_mail: call PublicInbox::IPC::DESTROY Eric Wong

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