Module: check_mk
Branch: master
Commit: a6e61fe1873cd691719f23b2251a62ae9c57ac62
URL:
http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=a6e61fe1873cd6…
Author: Florian Heigl <fh(a)mathias-kettner.de>
Date: Fri Jul 22 09:50:48 2011 +0200
New bug entry
---
.bugs/313 | 18 ++++++++++++++++++
1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/.bugs/313 b/.bugs/313
new file mode 100644
index 0000000..ebc3af1
--- /dev/null
+++ b/.bugs/313
@@ -0,0 +1,18 @@
+Title: Change agent NTP check to skip reverse resolution of NTP clocks
+Component: checks
+Benefit: 5
+State: open
+Cost: 3
+Date: 2011-07-21 10:54:02
+Class: feature
+
+The ntpq -p call will do one reverse lookup per NTP clock.
+This is slowing down check_mk_agent by a moment for systems
+with few clocks and fast DNS servers, or not slowing down at all when
+just using files as hosts source.
+BUT if there is any rDNS issue (think windows admins doing the DNS) or if theres
+notable latency to the DNS servers (i.e. when using "pool pool.ntp.org") then
this
+will slow down the agent run by many seconds.
+
+We should discuss switching to ntpq -n -p to disable hostname lookups.
+(Suggestion from "Sonic" on the mailing list)