From: Zac Dover Date: Sun, 5 Nov 2023 06:24:16 +0000 (+1000) Subject: doc/rados: format Q&A list in t-mon.rst X-Git-Tag: v18.2.1~36^2 X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F54345%2Fhead;p=ceph.git doc/rados: format Q&A list in t-mon.rst Format a Q&A list in doc/rados/troubleshooting/troubleshooting.rst, in the "Clock Skews" section. Signed-off-by: Zac Dover (cherry picked from commit aadb87aeb5cd8b413937ddfe4562411d424c4bb1) --- diff --git a/doc/rados/troubleshooting/troubleshooting-mon.rst b/doc/rados/troubleshooting/troubleshooting-mon.rst index 3849149fb51a..ca2f19631a84 100644 --- a/doc/rados/troubleshooting/troubleshooting-mon.rst +++ b/doc/rados/troubleshooting/troubleshooting-mon.rst @@ -377,12 +377,15 @@ following: * EndRun `https://endruntechnologies.com `_ * Netburner `https://www.netburner.com `_ -What's the maximum tolerated clock skew? +Clock Skew Questions and Answers +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +**What's the maximum tolerated clock skew?** By default, monitors allow clocks to drift up to a maximum of 0.05 seconds (50 milliseconds). -Can I increase the maximum tolerated clock skew? +**Can I increase the maximum tolerated clock skew?** Yes, but we strongly recommend against doing so. The maximum tolerated clock skew is configurable via the ``mon-clock-drift-allowed`` option, but it is @@ -393,7 +396,7 @@ Can I increase the maximum tolerated clock skew? unforeseen effects on the stability of the monitors and overall cluster health. -How do I know whether there is a clock skew? +**How do I know whether there is a clock skew?** The monitors will warn you via the cluster status ``HEALTH_WARN``. When clock skew is present, the ``ceph health detail`` and ``ceph status`` commands @@ -410,7 +413,7 @@ How do I know whether there is a clock skew? the reported offsets of other monitors are relative to the lead monitor, not to any external reference source. -What should I do if there is a clock skew? +**What should I do if there is a clock skew?** Synchronize your clocks. Using an NTP client might help. However, if you are already using an NTP client and you still encounter clock skew problems,