From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Mon, 23 Oct 2017 10:34:56 +0000 (+0300)
Subject: lib-master: Change instances.lock settings to make it less likely to fail
X-Git-Tag: 2.3.0.rc1~788
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8cd64fc6864eb5ffc35c6d4d574191f06e26834;p=thirdparty%2Fdovecot%2Fcore.git

lib-master: Change instances.lock settings to make it less likely to fail

With use_io_notify it's spending less time usleep()ing. Use also a slightly
longer timeout just in case.

If a lot of instances were started at the same time, some of them could have
failed with:
master: Error: file_dotlock_open(.../instances) failed: Resource temporarily unavailable
---

diff --git a/src/lib-master/master-instance.c b/src/lib-master/master-instance.c
index c60eb1e49b..580d7ef2c5 100644
--- a/src/lib-master/master-instance.c
+++ b/src/lib-master/master-instance.c
@@ -29,8 +29,9 @@ struct master_instance_list_iter {
 };
 
 static const struct dotlock_settings dotlock_set = {
-	.timeout = 2,
-	.stale_timeout = 60
+	.timeout = 10,
+	.stale_timeout = 60,
+	.use_io_notify = TRUE,
 };
 
 struct master_instance_list *master_instance_list_init(const char *path)