user/dev discussion of public-inbox itself
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* [PATCH] inboxidle: clue users into resolving ENOSPC from inotify
@ 2020-12-26  5:59 Eric Wong
  0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2020-12-26  5:59 UTC (permalink / raw)
  To: meta

It may not be obvious to users a ENOSPC error is from hitting
a (tunable) kernel-imposed limit on inotify watches, and not
some storage device running out of space.  Give them a hint
here to reduce our own support burden.
 lib/PublicInbox/ | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/PublicInbox/ b/lib/PublicInbox/
index 34606186..69da5f4f 100644
--- a/lib/PublicInbox/
+++ b/lib/PublicInbox/
@@ -39,6 +39,11 @@ sub in2_arm ($$) { # PublicInbox::Config::each_inbox callback
 		$self->{on_unlock}->{$w->name} = $ibx;
 	} else {
 		warn "E: ".ref($inot)."->watch($lock, IN_MODIFY) failed: $!\n";
+		if ($!{ENOSPC} && $^O eq 'linux') {
+			warn <<"";
+I: consider increasing /proc/sys/fs/inotify/max_user_watches
+		}
 	# TODO: detect deleted packs (and possibly other files)

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2020-12-26  5:59 [PATCH] inboxidle: clue users into resolving ENOSPC from inotify Eric Wong

user/dev discussion of public-inbox itself

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